This work is a study on the action of essential oils (EOs)of Pennyroyal Mentha pulegium against two larvaeL2 and L3 of Calliptamus barbarus (Orthoptera: Acrididae). The EOsare extracted by hydrodistillation protocol based on the use of a Clevenger. It should be noted that the yield of EOs obtained at the flowering stage (2.2%) is almost double that obtained at the foliage stage (1.2%).Gas Chromatography coupled to a mass spectrophometerGC-MS analysis revealed the presence of p-Menth-4 (8) -en-3-one, as the most frequently constituents of Mint, better known as Pulegone. We performed two ways of treatments: by contact and by alimentation (the duration of treatment is 3and 6 days respectively). By contact we have acquired a total mortality (100%) using the highest dose (48μl/ml) with a LD50 of 12.58 μl/ ml. In the opposite, by ingestion, the mortality rate obtained for the same dose was 80%while the LD50 was23.98 μl/ ml. Using the letal doses, the comparative effect of contact and ingestion between the essential oils show that the action by contact is stronger and faster to enter in the insect via the cuticulethan that byingestion. Finally authors concluded that the results were very satisfactory.
{"title":"Effect by Contact and Ingestion of Essential Oils of Pennyroyal: Mentha pulegium L.(Lamiaceae) on Juvenile of Calliptamus barbrus (Orthoptera: Calliptaminae)","authors":"Moad Rouibah, Rabah Bouredjoul, Salaheddine Kouahi","doi":"10.30560/as.v2n1p217","DOIUrl":"https://doi.org/10.30560/as.v2n1p217","url":null,"abstract":"This work is a study on the action of essential oils (EOs)of Pennyroyal Mentha pulegium against two larvaeL2 and L3 of Calliptamus barbarus (Orthoptera: Acrididae). The EOsare extracted by hydrodistillation protocol based on the use of a Clevenger. It should be noted that the yield of EOs obtained at the flowering stage (2.2%) is almost double that obtained at the foliage stage (1.2%).Gas Chromatography coupled to a mass spectrophometerGC-MS analysis revealed the presence of p-Menth-4 (8) -en-3-one, as the most frequently constituents of Mint, better known as Pulegone. We performed two ways of treatments: by contact and by alimentation (the duration of treatment is 3and 6 days respectively). By contact we have acquired a total mortality (100%) using the highest dose (48μl/ml) with a LD50 of 12.58 μl/ ml. In the opposite, by ingestion, the mortality rate obtained for the same dose was 80%while the LD50 was23.98 μl/ ml. Using the letal doses, the comparative effect of contact and ingestion between the essential oils show that the action by contact is stronger and faster to enter in the insect via the cuticulethan that byingestion. Finally authors concluded that the results were very satisfactory.","PeriodicalId":7435,"journal":{"name":"Agricultural Science","volume":"2 1","pages":"217"},"PeriodicalIF":0.0,"publicationDate":"2020-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48094523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Clarias gariepinus Burchell, 1822 is a catfish with high commercial value in the Democratic Republic of Congo and in several African countries. The breeding of this species is controlled, but Congolese fish farmers are confronted with the problem of a lack of compound feed in the form of granules. The recovery of local agricultural waste would be essential to fill this gap. The objective of this study is to evaluate the effect of three types of food based on local agricultural by-products on the growth of C. gariepinus. The 25%, 41% and 51% crude protein feed formulas were tested in duplicate for 96 days. Fry averaging 2.20±0.43 g were distributed in 6 closed-loop plastic containers. The fish were fed twice a day by hand. Weighing and measuring took place every 14 days. The results obtained show that the highest final average weight (g) and specific growth rate (%/d) (F = 2.87; p = 0.002) are obtained with food A1: 27.5±1.9 g and 0.25±0.15% /d respectively. It took 812.6 Congolese francs to develop food A1, 942.6 congolese francs to produce the A2 ration and 836.6 congolese francs to produce food A3. The A1 ration is the one that gave a better compromise in price and quality by promoting fish growth at a lower cost (3.827 congolese francs).
{"title":"Evaluation of the Cost of Production of Fish Clarias gariepinus Burchell, 1822 (Siluriformes, Clariidae) with Three Types of Food Based on Local Agricultural by-products in the Democratic Republic of Congo","authors":"Victor Pwema Kiamfu, Alex Mayoni Matondo, Santos Kavumbu Mutanda, Clément Munganga Kilingwa, Nadine Bipendu Muamba, Athanase Kusonika Ndamba, Willy Lusasi Swana","doi":"10.30560/as.v2n1p205","DOIUrl":"https://doi.org/10.30560/as.v2n1p205","url":null,"abstract":"Clarias gariepinus Burchell, 1822 is a catfish with high commercial value in the Democratic Republic of Congo and in several African countries. The breeding of this species is controlled, but Congolese fish farmers are confronted with the problem of a lack of compound feed in the form of granules. The recovery of local agricultural waste would be essential to fill this gap. The objective of this study is to evaluate the effect of three types of food based on local agricultural by-products on the growth of C. gariepinus. The 25%, 41% and 51% crude protein feed formulas were tested in duplicate for 96 days. Fry averaging 2.20±0.43 g were distributed in 6 closed-loop plastic containers. The fish were fed twice a day by hand. Weighing and measuring took place every 14 days. The results obtained show that the highest final average weight (g) and specific growth rate (%/d) (F = 2.87; p = 0.002) are obtained with food A1: 27.5±1.9 g and 0.25±0.15% /d respectively. It took 812.6 Congolese francs to develop food A1, 942.6 congolese francs to produce the A2 ration and 836.6 congolese francs to produce food A3. The A1 ration is the one that gave a better compromise in price and quality by promoting fish growth at a lower cost (3.827 congolese francs).","PeriodicalId":7435,"journal":{"name":"Agricultural Science","volume":"2 1","pages":"205"},"PeriodicalIF":0.0,"publicationDate":"2020-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42720890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. M. Abiola, Ajani Adedayo Olumuyiwa, Olaniyi Taiwo Anne, L. Olalekan, Hamzat Olatunji Alabi, Taiwo Oludare Dominic, A. A. Afolabi, Amao Adepeju Alaba
The training needs of dairy cattle farmers in Oyo state, Nigeria were assessed. A well-structured interview schedule was used to obtain information from 123 respondents. Data were collected on socio-economic characteristics of the respondents, their dairy cattle production enterprises and their training needs which were ascertained in six major areas of cattle production: feeding, breeding, healthcare, housing and management, marketing and finance, product preparation and processing. Data were subjected to descriptive statistics and regression analysis using SPPS (V.21). Results revealed that most (30.1%) of the respondents were 24 – 29 years old, married, were male, had no formal education. Results also revealed that more than 90% of dairy cattle farmers perceived the training needs in feeding as most important. The training index in dairy farming indicated that majority (91.8%) of the farmers needed to be trained more on dairy cattle production and management. Based on the result of this study, it was concluded that breeding, feeding and health care were perceived as the “most needed” training by the respondents. Although, training need in marketing and finance, milk preparation and processing, as well as housing and management were also perceived as important. Furthermore age, sex, marital status, religion, education level, source of flock, purpose of production and breeds of cattle had a direct effect on training needs of the respondent while occupation, household, herd size, had an indirect effect on training need of the respondents.
{"title":"Assessment of Training Needs Among Dairy Cattle Farmers in Oyo State, Nigeria","authors":"P. M. Abiola, Ajani Adedayo Olumuyiwa, Olaniyi Taiwo Anne, L. Olalekan, Hamzat Olatunji Alabi, Taiwo Oludare Dominic, A. A. Afolabi, Amao Adepeju Alaba","doi":"10.30560/as.v2n1p196","DOIUrl":"https://doi.org/10.30560/as.v2n1p196","url":null,"abstract":"The training needs of dairy cattle farmers in Oyo state, Nigeria were assessed. A well-structured interview schedule was used to obtain information from 123 respondents. Data were collected on socio-economic characteristics of the respondents, their dairy cattle production enterprises and their training needs which were ascertained in six major areas of cattle production: feeding, breeding, healthcare, housing and management, marketing and finance, product preparation and processing. Data were subjected to descriptive statistics and regression analysis using SPPS (V.21). Results revealed that most (30.1%) of the respondents were 24 – 29 years old, married, were male, had no formal education. Results also revealed that more than 90% of dairy cattle farmers perceived the training needs in feeding as most important. The training index in dairy farming indicated that majority (91.8%) of the farmers needed to be trained more on dairy cattle production and management. Based on the result of this study, it was concluded that breeding, feeding and health care were perceived as the “most needed” training by the respondents. Although, training need in marketing and finance, milk preparation and processing, as well as housing and management were also perceived as important. Furthermore age, sex, marital status, religion, education level, source of flock, purpose of production and breeds of cattle had a direct effect on training needs of the respondent while occupation, household, herd size, had an indirect effect on training need of the respondents.","PeriodicalId":7435,"journal":{"name":"Agricultural Science","volume":"2 1","pages":"196"},"PeriodicalIF":0.0,"publicationDate":"2020-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43583822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Md. Israfil Jahan, Masum Ahmad, M. Rahman, Fakhar Uddin Talukder
The pesticidal efficacy of four locally available leaves of botanicals like neem (Azadirachta indica), datura (Datura stramonium), marigold (Tagetes erecta) and garlic (Allium sativum L.) tablet powders was assessed on pulse bettle (Callosobruchus chinensis L) through adult mortality and emergence, oviposition performance, seed damage, weight loss and germination of chickpea (Cicer arietinum). The above test biopesticides were tested at three different rates (0.5 g, 1.0 g and 1.50 g powder/kg of chickpea seeds). All the tested powder showed significant effect on the above parameters. The highest adult mortality was recorded when chickpea seeds were treated with datura leaf powder at 1.50 g/kg, whereas marigold showed the least effect on adult mortality. The powders used in the experiment effectively controlled oviposition and adult emergence of pulse beetle. The lowest number of adult emergence was obtained from chickpea seeds treated with datura leaf powder at 1.50 g/kg. The highest weight loss was observed in control seeds followed by marigold leaf powder 0.5 g/kg gram seeds. Datura leaf powder treated seeds showed the lowest seed weight loss followed by neem, garlic and marigold. Plant powders had profound effect on seed germination. The highest germination was observed in treated seed with datura leaf powder at 1.50 g/kg and the lowest germination in control seed followed by marigold leaf powder at 1.5 g/kg treated seeds. The pesticidal effect on oviposition, adult mortality, adult emergence, and seed weight loss was directly proportional to leaf powder rates.
{"title":"Biopesticidal Management of Pulse Beetle (Callosobruchus Chinensis L) in Chickpea Seeds","authors":"Md. Israfil Jahan, Masum Ahmad, M. Rahman, Fakhar Uddin Talukder","doi":"10.30560/as.v2n1p184","DOIUrl":"https://doi.org/10.30560/as.v2n1p184","url":null,"abstract":"The pesticidal efficacy of four locally available leaves of botanicals like neem (Azadirachta indica), datura (Datura stramonium), marigold (Tagetes erecta) and garlic (Allium sativum L.) tablet powders was assessed on pulse bettle (Callosobruchus chinensis L) through adult mortality and emergence, oviposition performance, seed damage, weight loss and germination of chickpea (Cicer arietinum). The above test biopesticides were tested at three different rates (0.5 g, 1.0 g and 1.50 g powder/kg of chickpea seeds). All the tested powder showed significant effect on the above parameters. The highest adult mortality was recorded when chickpea seeds were treated with datura leaf powder at 1.50 g/kg, whereas marigold showed the least effect on adult mortality. The powders used in the experiment effectively controlled oviposition and adult emergence of pulse beetle. The lowest number of adult emergence was obtained from chickpea seeds treated with datura leaf powder at 1.50 g/kg. The highest weight loss was observed in control seeds followed by marigold leaf powder 0.5 g/kg gram seeds. Datura leaf powder treated seeds showed the lowest seed weight loss followed by neem, garlic and marigold. Plant powders had profound effect on seed germination. The highest germination was observed in treated seed with datura leaf powder at 1.50 g/kg and the lowest germination in control seed followed by marigold leaf powder at 1.5 g/kg treated seeds. The pesticidal effect on oviposition, adult mortality, adult emergence, and seed weight loss was directly proportional to leaf powder rates.","PeriodicalId":7435,"journal":{"name":"Agricultural Science","volume":"2 1","pages":"184"},"PeriodicalIF":0.0,"publicationDate":"2020-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69273644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Reliable past trends of water requirements of individual crops and cropping patterns at local level, although crucially important for irrigation forecast and agricultural planning, are yet inadequate for the water-scarce Barind region of Bangladesh. This study, therefore, determined water requirements and their trends of eight major crops (aus, aman, boro, vegetables, mustard, sugarcane, wheat and potato) and six cropping patterns (aus–aman–boro, aus–aman–potato, aman–potato–fallow, vegetables–aman, aman–mustard–fallow and aus–fallow–wheat) of Bogura and Rajshahi districts of the Barind region. Water requirements were determined from crop, soil and weather data for the period 1985–2013 by using Soil-Water Balance via CropWat (SWBcropwat) model. Trends of rainfall, crop evapotranspiration (ETc) and irrigation requirement (IR) were determined with MAKESENS statistical tool. Monthly total rainfall revealed increasing trend in January, August and October but decreasing trend in the other months, with significant (p≤0.05) trend in July in Bogura. Monthly total ETc decreased except in July and September, with significant trend in October–April/May. Seasonal ETc for the crops decreased significantly except for aman rice and sugarcane in Bogura and for aman rice in Rajshahi. ETc also decreased for the cropping patterns except for aman–mustard–fallow in Rajshahi. While effective rainfall (ER) for the crops and cropping patterns decreased only minimally, IR decreased significantly for boro, potato and vegetables in Bogura and for mustard and vegetables in Rajshahi. IR decreased for all cropping patterns, with significant trend for aus– aman–potato, aman–potato–fallow and vegetables–aman patterns. In response to changing cropping area, total volume of ETc increased gradually from 1985 to 2005 in Bogura and from 1985 to 2010 in Rajshahi for boro rice, but it decreased until 2005 before increasing for aus rice in both districts. After the year 2000, total volume of ETc decreased for wheat but increased for potato, indicating a shift from wheat to potato cultivation. Due to contrasting trends of ER and ETc and self-motivated shift in crop-choice, continuous adjustment of irrigation-based crop planning is necessary. The results of this study can guide future investigation for all other crops and cropping patterns to help planning agriculture of the study areas by choosing appropriate crops and cropping patterns based on available water resources.
{"title":"Trends of Water Requirements of Major Crops and Cropping Patterns in Bogura and Rajshahi Districts of Bangladesh","authors":"M. Mojid, Farhana Y. Shibly, T. Acharjee","doi":"10.30560/as.v2n1p170","DOIUrl":"https://doi.org/10.30560/as.v2n1p170","url":null,"abstract":"Reliable past trends of water requirements of individual crops and cropping patterns at local level, although crucially important for irrigation forecast and agricultural planning, are yet inadequate for the water-scarce Barind region of Bangladesh. This study, therefore, determined water requirements and their trends of eight major crops (aus, aman, boro, vegetables, mustard, sugarcane, wheat and potato) and six cropping patterns (aus–aman–boro, aus–aman–potato, aman–potato–fallow, vegetables–aman, aman–mustard–fallow and aus–fallow–wheat) of Bogura and Rajshahi districts of the Barind region. Water requirements were determined from crop, soil and weather data for the period 1985–2013 by using Soil-Water Balance via CropWat (SWBcropwat) model. Trends of rainfall, crop evapotranspiration (ETc) and irrigation requirement (IR) were determined with MAKESENS statistical tool. Monthly total rainfall revealed increasing trend in January, August and October but decreasing trend in the other months, with significant (p≤0.05) trend in July in Bogura. Monthly total ETc decreased except in July and September, with significant trend in October–April/May. Seasonal ETc for the crops decreased significantly except for aman rice and sugarcane in Bogura and for aman rice in Rajshahi. ETc also decreased for the cropping patterns except for aman–mustard–fallow in Rajshahi. While effective rainfall (ER) for the crops and cropping patterns decreased only minimally, IR decreased significantly for boro, potato and vegetables in Bogura and for mustard and vegetables in Rajshahi. IR decreased for all cropping patterns, with significant trend for aus– aman–potato, aman–potato–fallow and vegetables–aman patterns. In response to changing cropping area, total volume of ETc increased gradually from 1985 to 2005 in Bogura and from 1985 to 2010 in Rajshahi for boro rice, but it decreased until 2005 before increasing for aus rice in both districts. After the year 2000, total volume of ETc decreased for wheat but increased for potato, indicating a shift from wheat to potato cultivation. Due to contrasting trends of ER and ETc and self-motivated shift in crop-choice, continuous adjustment of irrigation-based crop planning is necessary. The results of this study can guide future investigation for all other crops and cropping patterns to help planning agriculture of the study areas by choosing appropriate crops and cropping patterns based on available water resources.","PeriodicalId":7435,"journal":{"name":"Agricultural Science","volume":"2 1","pages":"170"},"PeriodicalIF":0.0,"publicationDate":"2020-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49445955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Luqman, P. M. Abiola, Olaniyi Taiwo Anne, Aladegbaye Mercy Ifeoluwa, Aigbe Festus Odunayo, Owoade Solomon Adebayo, Soyewo Imoleayo Enitan, Ayodele Victor Adewale
The study was conducted to evaluate extent of involvement of women in dairy production in Oyo state. Two stage sampling procedure was used for the study with 112 questionnaires administered through a scheduled interview to obtain information from the respondents. Data were collected on socio-economic characteristics, dairy production enterprise of the respondents and their extent of involvement in dairy production activities. Data collected were subjected to descriptive statistics and regression analysis. The result of the study showed that most of the respondents were older than 25 years; they were Muslims, married, had no formal education and had 5-7 members as household size. The study further revealed that women were more involved in marketing activities (93.2%) and processing activities (92.4%) while they had low involvement in daily management activities and health activities of dairy cattle. The overall involvement index of the respondents show that most (91.1%) of the respondents had high involvement in dairy production activities. Based on the result of the study, it was concluded that most of the respondents were highly involved in processing and marketing of dairy products; they were not involved in daily management and health activities of dairy cattle. It was further concluded that the overall involvement index of the respondents was high in dairy production enterprise. Income and secondary occupation were significant factors influencing extent of involvement in dairy production enterprise.
{"title":"Extent of Involvement of Women in Dairy Farming Activities in Oyo State, Nigeria","authors":"A. Luqman, P. M. Abiola, Olaniyi Taiwo Anne, Aladegbaye Mercy Ifeoluwa, Aigbe Festus Odunayo, Owoade Solomon Adebayo, Soyewo Imoleayo Enitan, Ayodele Victor Adewale","doi":"10.30560/as.v2n1p162","DOIUrl":"https://doi.org/10.30560/as.v2n1p162","url":null,"abstract":"The study was conducted to evaluate extent of involvement of women in dairy production in Oyo state. Two stage sampling procedure was used for the study with 112 questionnaires administered through a scheduled interview to obtain information from the respondents. Data were collected on socio-economic characteristics, dairy production enterprise of the respondents and their extent of involvement in dairy production activities. Data collected were subjected to descriptive statistics and regression analysis. The result of the study showed that most of the respondents were older than 25 years; they were Muslims, married, had no formal education and had 5-7 members as household size. The study further revealed that women were more involved in marketing activities (93.2%) and processing activities (92.4%) while they had low involvement in daily management activities and health activities of dairy cattle. The overall involvement index of the respondents show that most (91.1%) of the respondents had high involvement in dairy production activities. Based on the result of the study, it was concluded that most of the respondents were highly involved in processing and marketing of dairy products; they were not involved in daily management and health activities of dairy cattle. It was further concluded that the overall involvement index of the respondents was high in dairy production enterprise. Income and secondary occupation were significant factors influencing extent of involvement in dairy production enterprise.","PeriodicalId":7435,"journal":{"name":"Agricultural Science","volume":"2 1","pages":"162"},"PeriodicalIF":0.0,"publicationDate":"2020-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41915498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Poor germination of peach seeds is the major limiting factor for rootstock production under the Holetta condition because of the seed dormancy problem. Stratification plays an important role in shortening the dormancy and increasing the germination of peach seeds. The study aimed to find easy stratification techniques for the germination of peach seeds using shade and different bed types. The experiment was carried out at the Holetta Agricultural Research Center in two successive years of 2017 and 2018. We got seeds used for this study from peach trees, which were well adapted for the Holetta area. It was arranged in a completely randomized design with five treatments of under tree shade on a flatbed, under tree shade in sunken bed, out of tree shade on a flatbed, out of tree shade in sunken bed and refrigerator as a standard check. They put all treatments except the refrigerator under the grass shade constructed 1 m3 wide. The treatments replicated four times, and each replication contained 200 seeds. The results showed that temperature is the most important factor affecting the germination percentage of the peach seeds. Seeds sown under the temperature close to 8 0C which is in the refrigerator found to have better germination percentage (47.1%) followed by the seeds sown in the grass shade under the tree shade both on sunken (35.8%) and flatbeds (34.9%). Peach seeds stratified in the refrigerator had good germination percentage whereas survival of the seedling was better at out of tree shade in sunken bed and out of tree shade on the flatbed. Even though the germination percentage was lower and the germination speed index was higher than the refrigerator. Seeds stratified at a temperature of above 17 OC experienced a poor germination percentage.
{"title":"Influence of Shade and Bed Types on Attaining Optimum Temperature for The Germination of Peach (Prunus Persica L. Batsch) Seeds at Holetta, Central Ethiopia","authors":"Habtam Setu, Tajebe Mosie, Kidist Firdie, Tenagne Eshete, Getaneh Sileshi","doi":"10.30560/as.v2n1p154","DOIUrl":"https://doi.org/10.30560/as.v2n1p154","url":null,"abstract":"Poor germination of peach seeds is the major limiting factor for rootstock production under the Holetta condition because of the seed dormancy problem. Stratification plays an important role in shortening the dormancy and increasing the germination of peach seeds. The study aimed to find easy stratification techniques for the germination of peach seeds using shade and different bed types. The experiment was carried out at the Holetta Agricultural Research Center in two successive years of 2017 and 2018. We got seeds used for this study from peach trees, which were well adapted for the Holetta area. It was arranged in a completely randomized design with five treatments of under tree shade on a flatbed, under tree shade in sunken bed, out of tree shade on a flatbed, out of tree shade in sunken bed and refrigerator as a standard check. They put all treatments except the refrigerator under the grass shade constructed 1 m3 wide. The treatments replicated four times, and each replication contained 200 seeds. The results showed that temperature is the most important factor affecting the germination percentage of the peach seeds. Seeds sown under the temperature close to 8 0C which is in the refrigerator found to have better germination percentage (47.1%) followed by the seeds sown in the grass shade under the tree shade both on sunken (35.8%) and flatbeds (34.9%). Peach seeds stratified in the refrigerator had good germination percentage whereas survival of the seedling was better at out of tree shade in sunken bed and out of tree shade on the flatbed. Even though the germination percentage was lower and the germination speed index was higher than the refrigerator. Seeds stratified at a temperature of above 17 OC experienced a poor germination percentage.","PeriodicalId":7435,"journal":{"name":"Agricultural Science","volume":"2 1","pages":"154"},"PeriodicalIF":0.0,"publicationDate":"2020-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46969203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The present study was run in the laboratory of the Department of Horticulture, Bangladesh Agricultural University, Mymensingh during the period of 15 May to September, 2016. The objectives of the study were to determine the effects of different postharvest treatments on the storage behaviour of litchi. Eight postharvest treatments viz., control, fruits stored in 50μ polypropylene bag at ambient temperature, fruits stored in 75μ polypropylene bag at ambient temperature, fruits stored in 100μ polypropylene bag at ambient temperature, fruits stored at 4oC temperature, fruits stored in 50μ polypropylene bag at 4oC temperature, fruits stored in 75μ polypropylene bag at 4oC temperature, fruits stored in 100μ polypropylene bag at 4oC temperature were assigned to the litchi fruits. The single factor experiment was laid out in a completely randomized design with three replications. 75μ polypropylene bag at low temperature (4oC) caused minimal weight loss, whereas, the untreated fruits exhibited maximal weight loss. The pericarp turned brown within 4 days of storage in the untreated fruits, while polypropylene bags helped keep its bright red colour, but microbial decay was evident at the end of the storage period. Different postharvest treatments showed highly significant variation in the shelf life of litchi. Among the treated and untreated fruits, 75μ polypropylene bag at low temperature (4oC) treatment exhibited better storage performance. The fruits kept in 75μ polypropylene bag at 4°C showed the highest shelf life (20.67 days) followed by 50μ polypropylene bag at 4°C (20.33 days), and it was the lowest in the untreated fruits (3 days).
{"title":"Effects of Polypropylene Bag on Storage Properties of Litchi (Litchi Chinensis Sonn.)","authors":"Fakhar Uddin Talukder, M. Rahman, M. Hassan","doi":"10.30560/as.v2n1p144","DOIUrl":"https://doi.org/10.30560/as.v2n1p144","url":null,"abstract":"The present study was run in the laboratory of the Department of Horticulture, Bangladesh Agricultural University, Mymensingh during the period of 15 May to September, 2016. The objectives of the study were to determine the effects of different postharvest treatments on the storage behaviour of litchi. Eight postharvest treatments viz., control, fruits stored in 50μ polypropylene bag at ambient temperature, fruits stored in 75μ polypropylene bag at ambient temperature, fruits stored in 100μ polypropylene bag at ambient temperature, fruits stored at 4oC temperature, fruits stored in 50μ polypropylene bag at 4oC temperature, fruits stored in 75μ polypropylene bag at 4oC temperature, fruits stored in 100μ polypropylene bag at 4oC temperature were assigned to the litchi fruits. The single factor experiment was laid out in a completely randomized design with three replications. 75μ polypropylene bag at low temperature (4oC) caused minimal weight loss, whereas, the untreated fruits exhibited maximal weight loss. The pericarp turned brown within 4 days of storage in the untreated fruits, while polypropylene bags helped keep its bright red colour, but microbial decay was evident at the end of the storage period. Different postharvest treatments showed highly significant variation in the shelf life of litchi. Among the treated and untreated fruits, 75μ polypropylene bag at low temperature (4oC) treatment exhibited better storage performance. The fruits kept in 75μ polypropylene bag at 4°C showed the highest shelf life (20.67 days) followed by 50μ polypropylene bag at 4°C (20.33 days), and it was the lowest in the untreated fruits (3 days).","PeriodicalId":7435,"journal":{"name":"Agricultural Science","volume":"2 1","pages":"144"},"PeriodicalIF":0.0,"publicationDate":"2020-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46517746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Experiments were conducted to assess the protectant ability of cow dung ash (CDA) to cowpea seeds against Callosobruchus maculatus F. under laboratory conditions of 50-65% R.H and 28-32oC. The CDA at different rates of 0.625, 1.25, 2.50, 5.00, 10.00% (w/w) incorporated with cypermethrin powder at 0.625% were applied to 20 g of cowpea seeds in petri dishes. None of the ashes or cypermethrin was added to the control. Ten beetles were introduced into each of the petri dishes and covered with muslin cloth. The experiment was arranged in a completely randomized design (CRD) and replicated three times. Effects of the treatments on adult mortalities as well as median lethal dose (LD50) of CDA against C. maculatus were determined. Adult emergence and weight losses in seeds treated with CDA at different doses were assessed. Findings of the study revealed that the adult mortality of C. maculatus among different CDA treatments differed significantly (p < 0.05) and ranged from 13.33 to 100.00% 72 hours after treatment (HAT). Results of the study also showed that LD50 of CDA against C. maculatus at 24 hours after treatment (HAT) was 5.51 % (w/w). No adults emerged from the treated seeds and weight losses were observed in those treated with the lowest dose and the control only. Therefore, CDA could be utilized to protect cowpea seeds from C. maculatus infestations during storage.
{"title":"Potentials of Cow Dung Ash as Protectants of Cowpea Seeds against Callosobruchus maculatus F. (Coleoptera: Chrysomelidae)","authors":"M. Suleiman, F. Haruna","doi":"10.30560/as.v2n1p128","DOIUrl":"https://doi.org/10.30560/as.v2n1p128","url":null,"abstract":"Experiments were conducted to assess the protectant ability of cow dung ash (CDA) to cowpea seeds against Callosobruchus maculatus F. under laboratory conditions of 50-65% R.H and 28-32oC. The CDA at different rates of 0.625, 1.25, 2.50, 5.00, 10.00% (w/w) incorporated with cypermethrin powder at 0.625% were applied to 20 g of cowpea seeds in petri dishes. None of the ashes or cypermethrin was added to the control. Ten beetles were introduced into each of the petri dishes and covered with muslin cloth. The experiment was arranged in a completely randomized design (CRD) and replicated three times. Effects of the treatments on adult mortalities as well as median lethal dose (LD50) of CDA against C. maculatus were determined. Adult emergence and weight losses in seeds treated with CDA at different doses were assessed. Findings of the study revealed that the adult mortality of C. maculatus among different CDA treatments differed significantly (p < 0.05) and ranged from 13.33 to 100.00% 72 hours after treatment (HAT). Results of the study also showed that LD50 of CDA against C. maculatus at 24 hours after treatment (HAT) was 5.51 % (w/w). No adults emerged from the treated seeds and weight losses were observed in those treated with the lowest dose and the control only. Therefore, CDA could be utilized to protect cowpea seeds from C. maculatus infestations during storage.","PeriodicalId":7435,"journal":{"name":"Agricultural Science","volume":"2 1","pages":"128"},"PeriodicalIF":0.0,"publicationDate":"2020-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48736022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The pervasiveness of poverty continues to be a daunting challenge for Bangladesh. This study attempts to examine the effect of different livelihood diversification on rural household poverty and income inequality. A panel dataset, which is used in this study, was collected in the three different years (1988, 2000 and 2008) from 62 villages across 57 districts of Bangladesh. Besides, 153 households from three districts of Bangladesh were also randomly selected as primary data. Multidimensional poverty index (MPI) was used to measure poverty whereas Gini coefficients and decomposition of Gini coefficients were used to measure inequality and to identify marginal effects of certain livelihood income source on total inequality. The results reveal that diversifying livelihood through income source changes has an impact on the poverty level and inequality among rural households. Following these changes, the overall poverty situation has been improving and income distribution has been worsening over the years. Households drastically reduce their poverty by diversifying their livelihood from only agriculture to part-time farming. Among different non-farm income sources, only self-employment has a positive contribution in decreasing income inequality since 2000. Incomes from migration and wage-employment widen income inequality in rural Bangladesh. Therefore, policy options should strive to expand rural industry and scope of self-employment in the rural areas along with agricultural sector development.
{"title":"Rural Livelihood Diversification in Bangladesh: Effect on Household Poverty and Inequality","authors":"Shakila Salam","doi":"10.30560/as.v2n1p133","DOIUrl":"https://doi.org/10.30560/as.v2n1p133","url":null,"abstract":"The pervasiveness of poverty continues to be a daunting challenge for Bangladesh. This study attempts to examine the effect of different livelihood diversification on rural household poverty and income inequality. A panel dataset, which is used in this study, was collected in the three different years (1988, 2000 and 2008) from 62 villages across 57 districts of Bangladesh. Besides, 153 households from three districts of Bangladesh were also randomly selected as primary data. Multidimensional poverty index (MPI) was used to measure poverty whereas Gini coefficients and decomposition of Gini coefficients were used to measure inequality and to identify marginal effects of certain livelihood income source on total inequality. The results reveal that diversifying livelihood through income source changes has an impact on the poverty level and inequality among rural households. Following these changes, the overall poverty situation has been improving and income distribution has been worsening over the years. Households drastically reduce their poverty by diversifying their livelihood from only agriculture to part-time farming. Among different non-farm income sources, only self-employment has a positive contribution in decreasing income inequality since 2000. Incomes from migration and wage-employment widen income inequality in rural Bangladesh. Therefore, policy options should strive to expand rural industry and scope of self-employment in the rural areas along with agricultural sector development.","PeriodicalId":7435,"journal":{"name":"Agricultural Science","volume":"2 1","pages":"133"},"PeriodicalIF":0.0,"publicationDate":"2020-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46075513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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