Pub Date : 2023-01-23DOI: 10.1080/09064710.2023.2165963
T. Rittl, F. Grønmyr, Ivar Bakken, A. Løes
ABSTRACT Intensive potato production may reduce the soil organic matter content (SOM), which may impact several soil functions and increase the incidence of potato diseases. We examined if cover crop and addition of organic materials may counteract these effects. Organic materials were one application of biochar mixed with liquid digestate (BLD); solid digestate (SD); or farmyard manure (FYM); with or without winter rye as cover crop, in a field with regular potato growing. Organic amendment increased SOM, especially for FYM and BLD, while cover crop did not affect SOM. Yet, cover crop increased tuber yields in the second year, and reduced the severity of potato diseases by 10% in post-harvest potatoes in both years. In the second year, the number of marketable potatoes after storage increased by 37% with cover crop. Organic amendments did not affect potato yield or quality, but the proportion of marketable potatoes tended to be higher in the amended soil. By lab incubation, BLD showed the largest potential for SOM storage, up to 32 years, followed by FYM and SD. Cover crops and organic amendments is recommended in potato production, especially for early potatoes where there is sufficient time after harvest to establish a good cover crop.
{"title":"Effects of organic amendments and cover crops on soil characteristics and potato yields","authors":"T. Rittl, F. Grønmyr, Ivar Bakken, A. Løes","doi":"10.1080/09064710.2023.2165963","DOIUrl":"https://doi.org/10.1080/09064710.2023.2165963","url":null,"abstract":"ABSTRACT\u0000 Intensive potato production may reduce the soil organic matter content (SOM), which may impact several soil functions and increase the incidence of potato diseases. We examined if cover crop and addition of organic materials may counteract these effects. Organic materials were one application of biochar mixed with liquid digestate (BLD); solid digestate (SD); or farmyard manure (FYM); with or without winter rye as cover crop, in a field with regular potato growing. Organic amendment increased SOM, especially for FYM and BLD, while cover crop did not affect SOM. Yet, cover crop increased tuber yields in the second year, and reduced the severity of potato diseases by 10% in post-harvest potatoes in both years. In the second year, the number of marketable potatoes after storage increased by 37% with cover crop. Organic amendments did not affect potato yield or quality, but the proportion of marketable potatoes tended to be higher in the amended soil. By lab incubation, BLD showed the largest potential for SOM storage, up to 32 years, followed by FYM and SD. Cover crops and organic amendments is recommended in potato production, especially for early potatoes where there is sufficient time after harvest to establish a good cover crop.","PeriodicalId":40817,"journal":{"name":"Acta Agriculturae Scandinavica Section B-Soil and Plant Science","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83995857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-23DOI: 10.1080/09064710.2023.2167668
Wei Zhou, Yanqiu Chen, Zhitao Hu, Yu Fan, Yihong Kuang, Tao Wang, Yong Chen, F. Deng, X. Lei, Jianfeng Hu, Youfeng Tao, Hong Cheng, W. Ren
ABSTRACT Although significant differences in soil nitrogen levels exist under different paddy-upland rotations, the main reason for this is unclear. The nitrogen retention capacity and loss of ammonia volatilisation, leaching, etc. of paddy soil with large differences in nitrogen levels from two long-term rotations, garlic-rice and wheat-rice, were measured using the soil column simulation method. The results showed that the loss rate of leaching was only 5.4%, whereas that of ammonia volatilisation was up to 22.8%, which was the main nitrogen loss way of paddy soil under the two rotations. The average ammonia volatilisation rates under wheat-rice rotation with high and low nitrogen application rates were 12.1% and 40.2% higher than that under garlic-rice rotation, leading to a decrease in the total nitrogen loss amount and rate through ammonia volatilisation by 29.8% and 8.8%, respectively. As a result, nitrogen retention in the soil under garlic-rice rotation increased by 12.7%. In conclusion, the long-term garlic-rice rotation could significantly inhibit ammonia volatilisation, thus improving the soil nitrogen retention capacity. The straw return may increase soil organic matter content, reduce ammonia volatilisation loss, and enhance soil nitrogen retention capacity and productivity.
{"title":"Nitrogen retention capacity of paddy soil improved under long-term garlic-rice rotation","authors":"Wei Zhou, Yanqiu Chen, Zhitao Hu, Yu Fan, Yihong Kuang, Tao Wang, Yong Chen, F. Deng, X. Lei, Jianfeng Hu, Youfeng Tao, Hong Cheng, W. Ren","doi":"10.1080/09064710.2023.2167668","DOIUrl":"https://doi.org/10.1080/09064710.2023.2167668","url":null,"abstract":"ABSTRACT Although significant differences in soil nitrogen levels exist under different paddy-upland rotations, the main reason for this is unclear. The nitrogen retention capacity and loss of ammonia volatilisation, leaching, etc. of paddy soil with large differences in nitrogen levels from two long-term rotations, garlic-rice and wheat-rice, were measured using the soil column simulation method. The results showed that the loss rate of leaching was only 5.4%, whereas that of ammonia volatilisation was up to 22.8%, which was the main nitrogen loss way of paddy soil under the two rotations. The average ammonia volatilisation rates under wheat-rice rotation with high and low nitrogen application rates were 12.1% and 40.2% higher than that under garlic-rice rotation, leading to a decrease in the total nitrogen loss amount and rate through ammonia volatilisation by 29.8% and 8.8%, respectively. As a result, nitrogen retention in the soil under garlic-rice rotation increased by 12.7%. In conclusion, the long-term garlic-rice rotation could significantly inhibit ammonia volatilisation, thus improving the soil nitrogen retention capacity. The straw return may increase soil organic matter content, reduce ammonia volatilisation loss, and enhance soil nitrogen retention capacity and productivity.","PeriodicalId":40817,"journal":{"name":"Acta Agriculturae Scandinavica Section B-Soil and Plant Science","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74169012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-13DOI: 10.1080/09064710.2022.2163281
Israel M. Guanzon, M. L. T. Mason, Purisima P. Juico, F. Fiegalan
ABSTRACT A lahar-laden soil is described as marginal soil due to its poor physicochemical and biological properties and is hypothesised to have low biodiversity of soil microbes that would help support plant growth. Thus, the study aimed to assess the presence of soil microorganisms in lahar-laden soils in Sta. Rita, Pampanga, with their ability as beneficial microbes for crop production. Vigna radiata was used as the trap crop and grown for a maximum of 35 days in a microcosm experiment where all variables were similar except for the location of the sampling site. Through the sequence analysis of the 16S rRNA gene, five representative isolates revealed close resemblance to the genus Bradyrhizobium and Rhizobium, while the others were classified as non-rhizobial endophytes, namely, Pseudomonas, Agrobacterium, and Leifsonia. These results indicate that the lahar-laden soils in the sampling site harbour some agronomically-important genera of microorganisms. Surprisingly, this is the first time that the species Leifsonia xyli was identified and isolated in acidic lahar-laden soil. In contrast, it is hypothesised that the presence of L.xyli in this study might be attributed to the acidic soil pH, leading to the suppression of rhizobia in root nodules.
{"title":"Isolation of three genera of microorganisms in lahar-laden soils of Sta. Rita, Pampanga, Philippines through the 16s rRNA gene sequence analysis","authors":"Israel M. Guanzon, M. L. T. Mason, Purisima P. Juico, F. Fiegalan","doi":"10.1080/09064710.2022.2163281","DOIUrl":"https://doi.org/10.1080/09064710.2022.2163281","url":null,"abstract":"ABSTRACT A lahar-laden soil is described as marginal soil due to its poor physicochemical and biological properties and is hypothesised to have low biodiversity of soil microbes that would help support plant growth. Thus, the study aimed to assess the presence of soil microorganisms in lahar-laden soils in Sta. Rita, Pampanga, with their ability as beneficial microbes for crop production. Vigna radiata was used as the trap crop and grown for a maximum of 35 days in a microcosm experiment where all variables were similar except for the location of the sampling site. Through the sequence analysis of the 16S rRNA gene, five representative isolates revealed close resemblance to the genus Bradyrhizobium and Rhizobium, while the others were classified as non-rhizobial endophytes, namely, Pseudomonas, Agrobacterium, and Leifsonia. These results indicate that the lahar-laden soils in the sampling site harbour some agronomically-important genera of microorganisms. Surprisingly, this is the first time that the species Leifsonia xyli was identified and isolated in acidic lahar-laden soil. In contrast, it is hypothesised that the presence of L.xyli in this study might be attributed to the acidic soil pH, leading to the suppression of rhizobia in root nodules.","PeriodicalId":40817,"journal":{"name":"Acta Agriculturae Scandinavica Section B-Soil and Plant Science","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79640828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2003-01-01DOI: 10.1080/09064710310003358
N. Benkeblia
Respiration rate (CO 2 production), soluble sugars, total phenolics and peroxidase activity (POD) were measured in inner bud tissues during the break of dormancy of onion bulbs treated for one week at 0°C and stored in the dark at 20°C. Results showed that after eight weeks, the RR C O 2 of sprouted control onions was 52% higher than that of unsprouted control onions. High concentrations of soluble sugars (glucose, fructose and sucrose) were observed for cold treated bulbs (from 9 to 20 mg g - 1 FW) after two weeks following cooling, but in control bulbs high concentrations were only observed after eight weeks. In cold-treated onions, a slight increase in phenolics (from 0.17 to 0.2 mg g - 1 FW) was observed after one week, and then there was a decrease to 0.12 mg g - 1 FW after five weeks. In inner buds of control bulbs, an increase from 0.17 to 0.2 mg g - 1 FW was observed during the first five weeks and then a decrease to 0.15 mg occurred during the three last weeks when the bulbs began to sprout. Peroxidase activity followed the same pattern as phenolics, with a decrease (38%) in cold-treated bulb after four weeks. In control samples, a decrease of 25% was noted after eight weeks. This decrease in POD activity coincided with the decrease in phenolics and the onset of sprouting. With cold treatment, total sprouting was observed after eight weeks. In comparison, only 20% of the control bulbs started sprouting after the same period.
在0°C条件下处理1周，20°C暗室保存，测定了休眠结束后洋葱内芽组织的呼吸速率(CO 2产量)、可溶性糖、总酚类物质和过氧化物酶活性(POD)。结果表明，8周后，发芽对照洋葱的RR - co2含量比未发芽对照洋葱高52%。在冷却两周后，冷处理球茎(从9到20 mg g - 1 FW)中观察到高浓度的可溶性糖(葡萄糖、果糖和蔗糖)，但在对照球茎中，只有在8周后才观察到高浓度。冷处理洋葱的酚类物质在一周后略有增加(从0.17 mg g - 1 FW增加到0.2 mg g - 1 FW)，然后在五周后下降到0.12 mg g - 1 FW。在对照鳞茎内芽中，前5周从0.17 mg g - 1 FW增加到0.2 mg g - 1 FW，然后在鳞茎开始发芽的最后3周下降到0.15 mg。过氧化物酶活性与酚类物质具有相同的模式，4周后冷处理球茎的过氧化物酶活性下降(38%)。在对照样本中，8周后下降了25%。POD活性的下降与酚类物质的减少和发芽的开始一致。冷处理8周后观察总发芽。相比之下，只有20%的对照球茎在同一时期开始发芽。
{"title":"Low Temperature and Breaking of Dormancy Effects on Respiration Rate, Sugars, Phenolics and Peroxidase Activity Changes in Inner Buds of Onion Allium cepa L.","authors":"N. Benkeblia","doi":"10.1080/09064710310003358","DOIUrl":"https://doi.org/10.1080/09064710310003358","url":null,"abstract":"Respiration rate (CO 2 production), soluble sugars, total phenolics and peroxidase activity (POD) were measured in inner bud tissues during the break of dormancy of onion bulbs treated for one week at 0°C and stored in the dark at 20°C. Results showed that after eight weeks, the RR C O 2 of sprouted control onions was 52% higher than that of unsprouted control onions. High concentrations of soluble sugars (glucose, fructose and sucrose) were observed for cold treated bulbs (from 9 to 20 mg g - 1 FW) after two weeks following cooling, but in control bulbs high concentrations were only observed after eight weeks. In cold-treated onions, a slight increase in phenolics (from 0.17 to 0.2 mg g - 1 FW) was observed after one week, and then there was a decrease to 0.12 mg g - 1 FW after five weeks. In inner buds of control bulbs, an increase from 0.17 to 0.2 mg g - 1 FW was observed during the first five weeks and then a decrease to 0.15 mg occurred during the three last weeks when the bulbs began to sprout. Peroxidase activity followed the same pattern as phenolics, with a decrease (38%) in cold-treated bulb after four weeks. In control samples, a decrease of 25% was noted after eight weeks. This decrease in POD activity coincided with the decrease in phenolics and the onset of sprouting. With cold treatment, total sprouting was observed after eight weeks. In comparison, only 20% of the control bulbs started sprouting after the same period.","PeriodicalId":40817,"journal":{"name":"Acta Agriculturae Scandinavica Section B-Soil and Plant Science","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2003-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76470091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2003-01-01DOI: 10.1080/09064710310006526
L. Wang, S. Vestrheim
Plum (Prunus domestica L.) cultivars 'Jubileum', 'Victoria' and 'Opal' were stored at 2°C in controlled atmosphere (CA) for 3 weeks. Flavour was better in fruit from air than from CA when the sensory evaluation was conducted immediately after CA storage. A strong bicarbonate taste occurred, particularly in fruit evaluated immediately after storage in 25% CO 2 . Exposure to 5, 15 or 25% CO 2 resulted in accumulation of ethanol. Cracking of 'Opal' plums was largely avoided by storage at 2°C in CA. Storage in controlled atmosphere had little effect on titratable acids (TA) and pH in the three cultivars. In general, pH increased with extended storage time. Effects of CA storage on soluble solids content (SSC) and fruit firmness were inconclusive. The optical density in plum juice was initially low and showed a decreasing trend during storage.
{"title":"Controlled atmosphere storage of norwegian grown plums (Prunus domestica L.)","authors":"L. Wang, S. Vestrheim","doi":"10.1080/09064710310006526","DOIUrl":"https://doi.org/10.1080/09064710310006526","url":null,"abstract":"Plum (Prunus domestica L.) cultivars 'Jubileum', 'Victoria' and 'Opal' were stored at 2°C in controlled atmosphere (CA) for 3 weeks. Flavour was better in fruit from air than from CA when the sensory evaluation was conducted immediately after CA storage. A strong bicarbonate taste occurred, particularly in fruit evaluated immediately after storage in 25% CO 2 . Exposure to 5, 15 or 25% CO 2 resulted in accumulation of ethanol. Cracking of 'Opal' plums was largely avoided by storage at 2°C in CA. Storage in controlled atmosphere had little effect on titratable acids (TA) and pH in the three cultivars. In general, pH increased with extended storage time. Effects of CA storage on soluble solids content (SSC) and fruit firmness were inconclusive. The optical density in plum juice was initially low and showed a decreasing trend during storage.","PeriodicalId":40817,"journal":{"name":"Acta Agriculturae Scandinavica Section B-Soil and Plant Science","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2003-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83317899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2003-01-01DOI: 10.1080/09064710310012781
D. D. L. Vidal, E. Saez-Olivito, Y. Nagamine
The main objective of the present study was to identify the structural factors characterizing forage systems of raising small ruminants or small ruminants and cereal households in a disadvantaged area of the Ebro River Valley in Spain. Information was obtained by a direct survey and was processed across Multivariate procedures. Three factors identified three household type strategies, determining the most important organizing forage structures linkage: the presence or the absence of the land factor conditioning the access to both the Useful Agrarian Area and Forage Area, and the structural relationships between the dimension of the live capital and type of labor factor. Since a representative number of households was used in this type of approach, the main combined patterns have been identified and can be considered as strategies since they reflect modes of goal implementation in European fragile lands.
{"title":"Structural strategies of Forage systems in an European disadvantaged area","authors":"D. D. L. Vidal, E. Saez-Olivito, Y. Nagamine","doi":"10.1080/09064710310012781","DOIUrl":"https://doi.org/10.1080/09064710310012781","url":null,"abstract":"The main objective of the present study was to identify the structural factors characterizing forage systems of raising small ruminants or small ruminants and cereal households in a disadvantaged area of the Ebro River Valley in Spain. Information was obtained by a direct survey and was processed across Multivariate procedures. Three factors identified three household type strategies, determining the most important organizing forage structures linkage: the presence or the absence of the land factor conditioning the access to both the Useful Agrarian Area and Forage Area, and the structural relationships between the dimension of the live capital and type of labor factor. Since a representative number of households was used in this type of approach, the main combined patterns have been identified and can be considered as strategies since they reflect modes of goal implementation in European fragile lands.","PeriodicalId":40817,"journal":{"name":"Acta Agriculturae Scandinavica Section B-Soil and Plant Science","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2003-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90687575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2003-01-01DOI: 10.1080/09064710310010693
P. Jensen, N. H. Spliid
The aim of this study was to investigate the proportion of spray liquid applied in a typical application that was deposited on the soil surface below the crop. This part of the spray is not only an application loss, but it also constitutes a primary source to leaching. The investigation was carried out during 1999-2001 in sugar beets and potatoes. Applications were carried out at approximate intervals of 10 days during the whole growing season in both crops, which were grown in rows. The results show that a high proportion of the spray liquid reaches the soil below the crop during applications at early growth stages, which correspond with stages when weed control is practised. At later growth stages soil deposition declined and reached values below 10-15% of the applied dose in sugar beet (GS 39) and 5-10% in potatoes (GS 59-79).
{"title":"Deposition of spray liquid on the soil below sugar beet and potatoes after applications during the growing season","authors":"P. Jensen, N. H. Spliid","doi":"10.1080/09064710310010693","DOIUrl":"https://doi.org/10.1080/09064710310010693","url":null,"abstract":"The aim of this study was to investigate the proportion of spray liquid applied in a typical application that was deposited on the soil surface below the crop. This part of the spray is not only an application loss, but it also constitutes a primary source to leaching. The investigation was carried out during 1999-2001 in sugar beets and potatoes. Applications were carried out at approximate intervals of 10 days during the whole growing season in both crops, which were grown in rows. The results show that a high proportion of the spray liquid reaches the soil below the crop during applications at early growth stages, which correspond with stages when weed control is practised. At later growth stages soil deposition declined and reached values below 10-15% of the applied dose in sugar beet (GS 39) and 5-10% in potatoes (GS 59-79).","PeriodicalId":40817,"journal":{"name":"Acta Agriculturae Scandinavica Section B-Soil and Plant Science","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2003-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81676625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2003-01-01DOI: 10.1080/09064710310006531
Levent Arin, A. Salk, M. Deveci̇, S. Polat
Research was carried out to determine the yield and quality of kohlrabi (Brassica oleracea L. var. gongylodes) under unheated glasshouse conditions during the spring and autumn growing periods in 2000. In each period, three kohlrabi varieties, two seedling ages and three planting dates, with respect to yield and quality characteristics, were evaluated. The autumn variety 'Express Forcer' and the spring variety 'Lahn' were more suitable than other cultivars. In autumn, seedling age of four weeks gave best results, while in spring the highest yield was obtained from six weeks-old seedlings. It is concluded that planting should not be delayed in both seasons.
{"title":"Kohlrabi growing under unheated glasshouse conditions in Turkey","authors":"Levent Arin, A. Salk, M. Deveci̇, S. Polat","doi":"10.1080/09064710310006531","DOIUrl":"https://doi.org/10.1080/09064710310006531","url":null,"abstract":"Research was carried out to determine the yield and quality of kohlrabi (Brassica oleracea L. var. gongylodes) under unheated glasshouse conditions during the spring and autumn growing periods in 2000. In each period, three kohlrabi varieties, two seedling ages and three planting dates, with respect to yield and quality characteristics, were evaluated. The autumn variety 'Express Forcer' and the spring variety 'Lahn' were more suitable than other cultivars. In autumn, seedling age of four weeks gave best results, while in spring the highest yield was obtained from six weeks-old seedlings. It is concluded that planting should not be delayed in both seasons.","PeriodicalId":40817,"journal":{"name":"Acta Agriculturae Scandinavica Section B-Soil and Plant Science","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2003-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78419787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2003-01-01DOI: 10.1080/09064710310006517
J. Pettersson, S. Kularatne, E. Ahmed, Vijaya Kumar, R. Glinwood
Responses of the European tarnished plant bug, Lygus rugulipennis, to conspecific and host plant odours were tested in an olfactometer. Females were attracted to the odour of other females, suggesting the existence of an aggregation mechanism. This is the first evidence for female-female attraction in Lygus and contrasts with the American species, L. lineolaris, in which aggregation is mediated by male odours. Males were attracted to females and to the female sex pheromone component (E)-2-hexenyl butyrate. Females were not attracted to this compound. There were differences between the sexes in their responses to host plant odours. Females were attracted to odour from Trifolium pratense, Medicago falcata, and M. saliva. Males were attracted only to M. saliva.
{"title":"Female European Tarnished Plant Bugs, Lygus rugulipennis (Heteroptera: Miridae), are Attracted to Odours from Conspecific Females","authors":"J. Pettersson, S. Kularatne, E. Ahmed, Vijaya Kumar, R. Glinwood","doi":"10.1080/09064710310006517","DOIUrl":"https://doi.org/10.1080/09064710310006517","url":null,"abstract":"Responses of the European tarnished plant bug, Lygus rugulipennis, to conspecific and host plant odours were tested in an olfactometer. Females were attracted to the odour of other females, suggesting the existence of an aggregation mechanism. This is the first evidence for female-female attraction in Lygus and contrasts with the American species, L. lineolaris, in which aggregation is mediated by male odours. Males were attracted to females and to the female sex pheromone component (E)-2-hexenyl butyrate. Females were not attracted to this compound. There were differences between the sexes in their responses to host plant odours. Females were attracted to odour from Trifolium pratense, Medicago falcata, and M. saliva. Males were attracted only to M. saliva.","PeriodicalId":40817,"journal":{"name":"Acta Agriculturae Scandinavica Section B-Soil and Plant Science","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2003-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82939124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2003-01-01DOI: 10.1080/09064710310006544
C. Toker, M. I. Cagirgan
{"title":"Selection criteria in chickpea (Cicer arietinum L.)","authors":"C. Toker, M. I. Cagirgan","doi":"10.1080/09064710310006544","DOIUrl":"https://doi.org/10.1080/09064710310006544","url":null,"abstract":"","PeriodicalId":40817,"journal":{"name":"Acta Agriculturae Scandinavica Section B-Soil and Plant Science","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2003-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89987893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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