D. Đokić, D. Terzić, J. Knežević, A. Vuković, D. Poštić, R. Štrbanović, R. Stanisavljević
The paper presents the results of three - year tests (I, II, III) of finishing alfalfa seed of three different purities. Natural alfalfa seeds were classified into three groups: 1) without the presence of quarantine weeds; 2) with the presence of quarantine weeds of Cuscuta spp. and Rumex spp., but in smaller quantities; 3) in which there were also quarantine weeds in larger quantities. The alfalfa seeds were cleaned on a selector with sieves and on a magnetic separator manufactured by Emceka-Gompper. Depending on the purity of natural alfalfa seed, the finishing process had to take place in one to three passes through a system of machines, which caused different finishing output and losses of finishing processed alfalfa seed (9.2 to 38.0%). After finishing, the highest quality of processed seeds was from the group with the highest quarantine weeds (group 3), which was reflected in the lowest percentage of hard seeds (16%) and the highest percentage of germination (83%) in all years. This is also shown by a highly significant negative correlation between germination and hard seed (r=-430) after three years of seed processing.
{"title":"Influence of the Presence of Weeds and Other Impurities in Natural Alfalfa Seed on Finishing Machines Work and Seed Quality During Three Years","authors":"D. Đokić, D. Terzić, J. Knežević, A. Vuković, D. Poštić, R. Štrbanović, R. Stanisavljević","doi":"10.59665/rar4025","DOIUrl":"https://doi.org/10.59665/rar4025","url":null,"abstract":"The paper presents the results of three - year tests (I, II, III) of finishing alfalfa seed of three different purities. Natural alfalfa seeds were classified into three groups: 1) without the presence of quarantine weeds; 2) with the presence of quarantine weeds of Cuscuta spp. and Rumex spp., but in smaller quantities; 3) in which there were also quarantine weeds in larger quantities. The alfalfa seeds were cleaned on a selector with sieves and on a magnetic separator manufactured by Emceka-Gompper. Depending on the purity of natural alfalfa seed, the finishing process had to take place in one to three passes through a system of machines, which caused different finishing output and losses of finishing processed alfalfa seed (9.2 to 38.0%). After finishing, the highest quality of processed seeds was from the group with the highest quarantine weeds (group 3), which was reflected in the lowest percentage of hard seeds (16%) and the highest percentage of germination (83%) in all years. This is also shown by a highly significant negative correlation between germination and hard seed (r=-430) after three years of seed processing.","PeriodicalId":49589,"journal":{"name":"Romanian Agricultural Research","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71121986","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}
V. Petcu, Corina Bubueanu, A. Casarica, G. Sãvoiu, R. Stoica, C. Bazdoaca, D. Lazăr, H. Iordan, Daniel Horhocea
In the context of sustainable practices and European strategy to reduce the chemical inputs in agricultural conventional systems, on field crops there are approached agroecological practices that targets the performance growing through effective measures that adjust the biodiversity of agroecosystems. The study presents the results of a field experience developed in a farmer participative approach on two years (2021, 2022). In his farm - from Buești, Ialomița, România - were established 30 multifactorial testing varieties composed from treatment with a special product for maize crop (BioZeaFert: BF) from Bacillus subtilis ICCF 84: 25%; Bacillus subtilis 284: 25%; Trichoderma harzianum ICCF 179: 50%. The treatments have been applied on seeds (Untreated, BF 10%, BF 20%, BF 30%, CuSO4 10%) and on vegetation period (Untreated, BF 75g/ha, BF 112.5 g/ha, BF 225 g/ha, CuSO4 300g/ha) for 3 maize hybrids (Iezer, Felix, F 423). Also has been integrated in his crop technology cover crops and the using of organic agriculture inputs. The application of the product and agroecological measures had positive effects regarding the protection against pest Tanymecus dilaticollis. The damage degree was 16-19% in the untreated maize, while for the treated maize it was between 6-11%, the lowest values were observed for BF 30% on Iezer hybrid. The biostimulator had positive effects on plant growth and therefore on yield. The treatments or the type of hybrids did not influenced the weeding degree.
{"title":"Efficacy of Trichoderma Harzianum and Bacillus Subtilis as Seed and Vegetation Application Combined with Integrated Agroecology Measures on Maize","authors":"V. Petcu, Corina Bubueanu, A. Casarica, G. Sãvoiu, R. Stoica, C. Bazdoaca, D. Lazăr, H. Iordan, Daniel Horhocea","doi":"10.59665/rar4041","DOIUrl":"https://doi.org/10.59665/rar4041","url":null,"abstract":"In the context of sustainable practices and European strategy to reduce the chemical inputs in agricultural conventional systems, on field crops there are approached agroecological practices that targets the performance growing through effective measures that adjust the biodiversity of agroecosystems. The study presents the results of a field experience developed in a farmer participative approach on two years (2021, 2022). In his farm - from Buești, Ialomița, România - were established 30 multifactorial testing varieties composed from treatment with a special product for maize crop (BioZeaFert: BF) from Bacillus subtilis ICCF 84: 25%; Bacillus subtilis 284: 25%; Trichoderma harzianum ICCF 179: 50%. The treatments have been applied on seeds (Untreated, BF 10%, BF 20%, BF 30%, CuSO4 10%) and on vegetation period (Untreated, BF 75g/ha, BF 112.5 g/ha, BF 225 g/ha, CuSO4 300g/ha) for 3 maize hybrids (Iezer, Felix, F 423). Also has been integrated in his crop technology cover crops and the using of organic agriculture inputs. The application of the product and agroecological measures had positive effects regarding the protection against pest Tanymecus dilaticollis. The damage degree was 16-19% in the untreated maize, while for the treated maize it was between 6-11%, the lowest values were observed for BF 30% on Iezer hybrid. The biostimulator had positive effects on plant growth and therefore on yield. The treatments or the type of hybrids did not influenced the weeding degree.","PeriodicalId":49589,"journal":{"name":"Romanian Agricultural Research","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71122153","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}
A. Port, S. Clapco, M. Duca, Ion Burcovschi, M. Joița-Păcureanu
Present study was focused on the analyses of phenotypic traits (across field and laboratory trials) and transcriptional changes in cotyledons and roots of sunflower hybrids, exposed to different levels of drought stress. By comparing the level of dehydrins genes (DHNs) expression in tolerant and sensitive genotypes as response to drought and of the correlations between physiologic responses in laboratory and field screening, an efficient and easily manageable experimental test system for sunflower seedlings was established. Thus, DHNs genes (Rab18-like, Xero1 and COR47-like) differentially expressed under induced hydric stress could be used as a proceeding for estimation of plant drought survival, hence, improving the pre-screening trials in the breeding programs aimed on plant tolerance to water-deficit stresses.
{"title":"Accumulation of Dehydrin Transcripts Correlates with Tolerance to Drought Stress in Sunflower","authors":"A. Port, S. Clapco, M. Duca, Ion Burcovschi, M. Joița-Păcureanu","doi":"10.59665/rar4006","DOIUrl":"https://doi.org/10.59665/rar4006","url":null,"abstract":"Present study was focused on the analyses of phenotypic traits (across field and laboratory trials) and transcriptional changes in cotyledons and roots of sunflower hybrids, exposed to different levels of drought stress. By comparing the level of dehydrins genes (DHNs) expression in tolerant and sensitive genotypes as response to drought and of the correlations between physiologic responses in laboratory and field screening, an efficient and easily manageable experimental test system for sunflower seedlings was established. Thus, DHNs genes (Rab18-like, Xero1 and COR47-like) differentially expressed under induced hydric stress could be used as a proceeding for estimation of plant drought survival, hence, improving the pre-screening trials in the breeding programs aimed on plant tolerance to water-deficit stresses.","PeriodicalId":49589,"journal":{"name":"Romanian Agricultural Research","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71121276","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}
R. Petrova, A. Matev, V. Delibaltova, H. Kirchev, B. Harizanova-Petrova, M. Sabeva, Nikolai Minev
With relation to the present issue about the influence of the periodic water deficit on the content and yield of the main chemical components, summarized annual data have been used including years of different characteristics, with droughts in different vegetation phenophases of soybean: very dry, averagely dry and average. The experiment was conducted at the Agricultural University of Plovdiv. The experiment was set in 4 repetitions with a size of experimental plots - 30 m 2 , and the crop plots - 10 m 2 . Criteria for watering performance was pre-watering moisture of soil at option 5-80% under-soil moisture for the layer 0-60 cm. The irrigation norm for all options was 50 mm. The irrigation norm for option 5 was 150 mm, and for options 2, 3 and 4-100 mm. Irrigation was performed gravitative along short closed furrows. After the completion of all experimental options, there were established the content and yield of the main chemical components in soybean grains - raw fat content, raw protein, raw fibres, raw ash and non-nitrogen extracted substances. Watering cancellations in the period of seed filling decrease the raw protein content. Watering cancellation in the bean formation period has a negative influence on protein content in soybean or does not influence it at all. Watering cancellation during the reproductive period decreases raw protein yield, which leads to a decrease in grain yield. Regarding raw fats, the most favourable is the water cancellation in the period of seed filling which favours growth in their content. Watering cancellation in the period of seed filling leads to a more significant decrease in lysine content. Despite the watering cancellation in a particular phase, the application of the other two waterings increases carbohydrate content in soybean grains compared to that obtained in non-watering conditions.
{"title":"Influence of Water Deficit on the Chemical Composition of Soybean Grains","authors":"R. Petrova, A. Matev, V. Delibaltova, H. Kirchev, B. Harizanova-Petrova, M. Sabeva, Nikolai Minev","doi":"10.59665/rar4015","DOIUrl":"https://doi.org/10.59665/rar4015","url":null,"abstract":"With relation to the present issue about the influence of the periodic water deficit on the content and yield of the main chemical components, summarized annual data have been used including years of different characteristics, with droughts in different vegetation phenophases of soybean: very dry, averagely dry and average. The experiment was conducted at the Agricultural University of Plovdiv. The experiment was set in 4 repetitions with a size of experimental plots - 30 m 2 , and the crop plots - 10 m 2 . Criteria for watering performance was pre-watering moisture of soil at option 5-80% under-soil moisture for the layer 0-60 cm. The irrigation norm for all options was 50 mm. The irrigation norm for option 5 was 150 mm, and for options 2, 3 and 4-100 mm. Irrigation was performed gravitative along short closed furrows. After the completion of all experimental options, there were established the content and yield of the main chemical components in soybean grains - raw fat content, raw protein, raw fibres, raw ash and non-nitrogen extracted substances. Watering cancellations in the period of seed filling decrease the raw protein content. Watering cancellation in the bean formation period has a negative influence on protein content in soybean or does not influence it at all. Watering cancellation during the reproductive period decreases raw protein yield, which leads to a decrease in grain yield. Regarding raw fats, the most favourable is the water cancellation in the period of seed filling which favours growth in their content. Watering cancellation in the period of seed filling leads to a more significant decrease in lysine content. Despite the watering cancellation in a particular phase, the application of the other two waterings increases carbohydrate content in soybean grains compared to that obtained in non-watering conditions.","PeriodicalId":49589,"journal":{"name":"Romanian Agricultural Research","volume":"53 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71121874","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}
V. Hudzenko, L. Tsentylo, Olexandr Demydov, L. Khudolii, N. Buniak, I. Fedorenko, M. Fedorenko, H. Kozelets, N. Syplyva, S. Lashuk, Alla Gaidai, V. Petrenko, Yuliya Rybalko, Yuliia Suddenko
The present study aims to elucidate the peculiarities of yield performance and stability of spring barley cultivars in the multi-environment trial. Thirty six spring barley cultivars widespread in production conditions of Ukraine were tested in three different natural zones in three years. The strong cross-over genotype by environment interaction was revealed not only through different natural zones, but also in individual ecological niches in different years. The cultivars with high yield and stability have been identified. The most adapted to the conditions of Forest-Steppe were the cultivars MIP Bohun, MIP Myrnyi, MIP Saliut, MIP Azart; of Polissia - Avhur, MIP Myrnyi, Mirazh, Skarb, Alehro; of Steppe - Skarb and Sviatomykhailivskyi, Alehro, Krok, Statok. The cultivars MIP Myrnyi, Skarb, Avhur, MIP Saliut, and MIP Bohun could be highlighted as genotypes with relatively wide adaptability. Thus, the combination of these cultivars in production conditions can be considered as the most optimal for all natural zones of Ukraine. Our results also contribute to the further understanding the yield performance of spring barley in the genotype by environment interaction depend on different environmental and weather conditions. The cultivars distinguished in this study have a high value in plant breeding as genetic sources for developing new spring barley strains with increased adaptive potential for conditions of Ukraine and some other East European countries.
{"title":"GGE Biplot Elucidation of Spring Barley Yield Performance under Multivarious Conditions of Ukraine","authors":"V. Hudzenko, L. Tsentylo, Olexandr Demydov, L. Khudolii, N. Buniak, I. Fedorenko, M. Fedorenko, H. Kozelets, N. Syplyva, S. Lashuk, Alla Gaidai, V. Petrenko, Yuliya Rybalko, Yuliia Suddenko","doi":"10.59665/rar4017","DOIUrl":"https://doi.org/10.59665/rar4017","url":null,"abstract":"The present study aims to elucidate the peculiarities of yield performance and stability of spring barley cultivars in the multi-environment trial. Thirty six spring barley cultivars widespread in production conditions of Ukraine were tested in three different natural zones in three years. The strong cross-over genotype by environment interaction was revealed not only through different natural zones, but also in individual ecological niches in different years. The cultivars with high yield and stability have been identified. The most adapted to the conditions of Forest-Steppe were the cultivars MIP Bohun, MIP Myrnyi, MIP Saliut, MIP Azart; of Polissia - Avhur, MIP Myrnyi, Mirazh, Skarb, Alehro; of Steppe - Skarb and Sviatomykhailivskyi, Alehro, Krok, Statok. The cultivars MIP Myrnyi, Skarb, Avhur, MIP Saliut, and MIP Bohun could be highlighted as genotypes with relatively wide adaptability. Thus, the combination of these cultivars in production conditions can be considered as the most optimal for all natural zones of Ukraine. Our results also contribute to the further understanding the yield performance of spring barley in the genotype by environment interaction depend on different environmental and weather conditions. The cultivars distinguished in this study have a high value in plant breeding as genetic sources for developing new spring barley strains with increased adaptive potential for conditions of Ukraine and some other East European countries.","PeriodicalId":49589,"journal":{"name":"Romanian Agricultural Research","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71121883","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}
M. Tucak, T. Čupić, D. Horvat, M. Ravlić, G. Krizmanić, D. Maćešić, T. Žnidaršič, Vadimir Meglič
Red clover (Trifolium pratense L.) is the second most important cultivated perennial forage legume used as a fodder for livestock. Agronomic and forage quality traits of red clover are dependent on various factors, including optimal phenological stage for cutting in order to obtain forage with high nutritive value and yield. Three different development stages (full budding, beginning of flowering, full flowering) of two red clover genotypes were examined in order to determine changes in agronomic and forage nutritive values. The stage of plant development at the time of cutting significantly affected yields and forage nutritive values of red clover compared to the choice of cultivar. Forage cut at full flowering resulted in the highest values of green mass, dry matter yield and crude protein yield and plant height, however the forage quality with the plant maturation rapidly decreased. The correlations between the investigated traits confirmed a negative relationship between yields and forage nutritive quality.
{"title":"Changes in Agronomic and Forage Nutritive Values of Red Clover in Response to Different Development Stage","authors":"M. Tucak, T. Čupić, D. Horvat, M. Ravlić, G. Krizmanić, D. Maćešić, T. Žnidaršič, Vadimir Meglič","doi":"10.59665/rar4021","DOIUrl":"https://doi.org/10.59665/rar4021","url":null,"abstract":"Red clover (Trifolium pratense L.) is the second most important cultivated perennial forage legume used as a fodder for livestock. Agronomic and forage quality traits of red clover are dependent on various factors, including optimal phenological stage for cutting in order to obtain forage with high nutritive value and yield. Three different development stages (full budding, beginning of flowering, full flowering) of two red clover genotypes were examined in order to determine changes in agronomic and forage nutritive values. The stage of plant development at the time of cutting significantly affected yields and forage nutritive values of red clover compared to the choice of cultivar. Forage cut at full flowering resulted in the highest values of green mass, dry matter yield and crude protein yield and plant height, however the forage quality with the plant maturation rapidly decreased. The correlations between the investigated traits confirmed a negative relationship between yields and forage nutritive quality.","PeriodicalId":49589,"journal":{"name":"Romanian Agricultural Research","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71122055","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}
I. Brumă, M. Toader, G. Popescu, V. Petcu, E. Georgescu
Alfalfa (Medicago sativa) is considered to be one of the oldest and most important fodder plants. Its current importance in improving soil fertility by fixing atmospheric nitrogen with the help of bacteria (Rhizobium meliloti), as well as a cover plant by sequestering carbon, its melliferous value and adaptation to different climate and soil conditions, confirm the importance of this plant in the organic farming system. As a result, in this context, the aim of this work is to highlight the cultivation of alfalfa in an organic farming system in the north-eastern area of Romania, in period 2019-2021, with particular reference to the evolution of the organic surfaces, the framework cultivation technology, as well as some variants of efficient utilization of production. Thus, the organic (certified I, II and organic) alfalfa has had an upward evolution in recent years, being cultivated on 14149,84 ha in 2017 and reaching 25612,86 ha in 2019. Also, in organic farm from North-east development region of Romania, the average production of alfalfa for dray hay was 4.8 t/ha and price of selling was 144,63 €/t, respectively, the average seeds production was 0.5 t/ha with 206,62 €/t.
{"title":"The Evolution of Alfalfa, as Important Crop in Organic Farming System in Romania","authors":"I. Brumă, M. Toader, G. Popescu, V. Petcu, E. Georgescu","doi":"10.59665/rar4028","DOIUrl":"https://doi.org/10.59665/rar4028","url":null,"abstract":"Alfalfa (Medicago sativa) is considered to be one of the oldest and most important fodder plants. Its current importance in improving soil fertility by fixing atmospheric nitrogen with the help of bacteria (Rhizobium meliloti), as well as a cover plant by sequestering carbon, its melliferous value and adaptation to different climate and soil conditions, confirm the importance of this plant in the organic farming system. As a result, in this context, the aim of this work is to highlight the cultivation of alfalfa in an organic farming system in the north-eastern area of Romania, in period 2019-2021, with particular reference to the evolution of the organic surfaces, the framework cultivation technology, as well as some variants of efficient utilization of production. Thus, the organic (certified I, II and organic) alfalfa has had an upward evolution in recent years, being cultivated on 14149,84 ha in 2017 and reaching 25612,86 ha in 2019. Also, in organic farm from North-east development region of Romania, the average production of alfalfa for dray hay was 4.8 t/ha and price of selling was 144,63 €/t, respectively, the average seeds production was 0.5 t/ha with 206,62 €/t.","PeriodicalId":49589,"journal":{"name":"Romanian Agricultural Research","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71122219","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}
The plant growth and productivity are associated with the interaction between the genetic potential and environmental factors. But, in recent decades most of the agricultural researches have focused on modifying the genetic potential of the cultivars and, less attention has been paid to the cultivation practices and production systems. The benefits of this strategy have diminished by increasing the economic costs and environmental damage arising from the chemical input-dependent approach. Therefore, the present study was aimed to determine the optimum condition in crop growing environment by increasing the productivity and reducing the chemical input application in rice production. Hence, this experiment was conducted to evaluate the cropping systems used for local rice cultivars in Iran in 2017 and 2018. Planting systems including and the cultivars were chosen as the first and second factors, respectively. Results revealed that grain NPK content, NPK harvest index and NPK use efficiency are positively associated with the paddy yield. Hence, the high-input and conventional systems resulted in an increase in the quantitative yield, but the organic and transition to organic systems led to higher WUE over both years than other systems. Also, WP was higher in the conventional system than other systems.
{"title":"Selecting A Smart Cropping System: Field Trial Evidences of Rice Cultivars in Northern Iran","authors":"Nader Moeini, M. R. Dadashi, S. Dastan, A. Faraji","doi":"10.59665/rar4043","DOIUrl":"https://doi.org/10.59665/rar4043","url":null,"abstract":"The plant growth and productivity are associated with the interaction between the genetic potential and environmental factors. But, in recent decades most of the agricultural researches have focused on modifying the genetic potential of the cultivars and, less attention has been paid to the cultivation practices and production systems. The benefits of this strategy have diminished by increasing the economic costs and environmental damage arising from the chemical input-dependent approach. Therefore, the present study was aimed to determine the optimum condition in crop growing environment by increasing the productivity and reducing the chemical input application in rice production. Hence, this experiment was conducted to evaluate the cropping systems used for local rice cultivars in Iran in 2017 and 2018. Planting systems including and the cultivars were chosen as the first and second factors, respectively. Results revealed that grain NPK content, NPK harvest index and NPK use efficiency are positively associated with the paddy yield. Hence, the high-input and conventional systems resulted in an increase in the quantitative yield, but the organic and transition to organic systems led to higher WUE over both years than other systems. Also, WP was higher in the conventional system than other systems.","PeriodicalId":49589,"journal":{"name":"Romanian Agricultural Research","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71122728","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}
This study explores short-run and long-run relationship between economic globalization and crop production in Turkiye by utilizing linear and nonlinear ARDL models for two distinct indicators of crop production. Based on linear and nonlinear ARDL bound tests, the relevant variables are co-integrated and hence they move together in the long run. Economic globalization and crop production possess statistically significant positive association in the long run in linear ARDL models. On the other hand, short-run and longrun symmetry test results disclose that the relationship of economic globalization and crop production in the short-run and long-run is asymmetric. According to the estimation findings, positive and negative changes in economic globalization augment crop production. Meanwhile several tests were conducted to check the statistical validity and robustness of our findings. The results of those diagnostic tests show that neither linear ARDL models nor nonlinear ARDL models incorporate problems in the sense of non-normality, autocorrelation, heteroskedasticity, model misspecification, and parameter instability.
{"title":"Asymmetric Short-Run and Long-Run Impact of Economic Globalization on Crop Production in Turkiye","authors":"C. Koyuncu, Mustafa Unver, M. V. Kaya","doi":"10.59665/rar4064","DOIUrl":"https://doi.org/10.59665/rar4064","url":null,"abstract":"This study explores short-run and long-run relationship between economic globalization and crop production in Turkiye by utilizing linear and nonlinear ARDL models for two distinct indicators of crop production. Based on linear and nonlinear ARDL bound tests, the relevant variables are co-integrated and hence they move together in the long run. Economic globalization and crop production possess statistically significant positive association in the long run in linear ARDL models. On the other hand, short-run and longrun symmetry test results disclose that the relationship of economic globalization and crop production in the short-run and long-run is asymmetric. According to the estimation findings, positive and negative changes in economic globalization augment crop production. Meanwhile several tests were conducted to check the statistical validity and robustness of our findings. The results of those diagnostic tests show that neither linear ARDL models nor nonlinear ARDL models incorporate problems in the sense of non-normality, autocorrelation, heteroskedasticity, model misspecification, and parameter instability.","PeriodicalId":49589,"journal":{"name":"Romanian Agricultural Research","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71124371","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}
Ehsan Ghorbannia Delavar, A. Faramarzi, J. Ajalli, N. Nazari, Mehrdad Abdi
Drought stress is one of the most important environmental stresses that affects the quantity and quality of soybean production. This study was conducted to explore the role of iron oxide nanoparticles (NPs) application and Piriformospora indica inoculation in alleviating the adversities of drought stress on fatty acid composition and oil production in soybean. The results showed that seed oil synthesis was considerably reduced by drought stress, whereas the membrane lipid peroxidation was accelerated under drought stress condition. The applied NPs (especially 0.75g L-1 ) and P. indica enhanced the activities of enzymatic antioxidants (SOD, CAT, PPO and APX) with simultaneous decrease in malondialdehyde. Under drought stress, an inverse relationship between protein and seed oil was observed, as by increasing protein content, seed oil decreased linearly. In addition, the main oil constituents, oleic and stearic acids increased, while linoleic, linolenic and palmitic acids reached to the lowest level in severe drought stress (FC 20%). Interestingly, the beneficial effects of NPs and P. indica led to improvement in grain weight, fatty acid composition and oil content under drought stress. During drought stress, oleic, linoleic, linolenic and palmitic acids increased and stearic acid decreased considerably in P. indica and NPs treatments. However, combined NPs and P. indica was generally more effective in alleviation of drought stress deleterious effects than individual treatments.
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