Pub Date : 2021-08-04DOI: 10.1590/2317-1545v43239171
F. Koch, J. M. Rolim, E. G. Martinazzo, T. Pedó, F. A. Villela, T. Z. Aumonde
Abstract: The quality of the seeds and the occurrence of stresses are decisive for the development of the crops. Thus, the work aimed to verify the effect of seed vigor on growth and dry weight partition of wheat plants subjected to water stress. For growth evaluation, the experimental design was completely randomized, in a 2 x 2 x 8 factorial scheme (vigor level x water regime x collection time), with four replications. To evaluate the yield of the seeds, the design was completely randomized, in a 2 x 2 factorial scheme (level of vigor x water regime), with four replications. Total dry weight, dry weight production rate, relative growth rate, leaf area ratio, leaf area, solar energy conversion efficiency, dry weight partition and harvest index were evaluated. Total dry weight production, dry weight production rate, leaf area, leaf weight ratio, solar energy conversion efficiency and yield were higher for plants from highly vigorous seeds under field capacity. The yield was higher for plants with high vigor compared to those with low vigor in field capacity.
摘要：种子的质量和胁迫的发生对作物的发育起着决定性的作用。因此，本研究旨在验证种子活力对水分胁迫下小麦植株生长和干重分配的影响。对于生长评估，实验设计是完全随机的，采用2 x 2 x 8析因方案（活力水平x水分状况x采集时间），进行四次重复。为了评估种子的产量，该设计是完全随机的，采用2×2析因方案（活力水平×水分状况），进行四次重复。对总干重、干重生产率、相对生长率、叶面积比、叶面积、太阳能转换效率、干重分配和收获指数进行了评价。在田间持力条件下，高活力种子植株的总干重产量、干重生产率、叶面积、叶重比、太阳能转换效率和产量较高。在田间容量方面，高活力植物的产量高于低活力植物。
{"title":"Growth and dry matter partition wheat plants in response to seed vigor and water restriction","authors":"F. Koch, J. M. Rolim, E. G. Martinazzo, T. Pedó, F. A. Villela, T. Z. Aumonde","doi":"10.1590/2317-1545v43239171","DOIUrl":"https://doi.org/10.1590/2317-1545v43239171","url":null,"abstract":"Abstract: The quality of the seeds and the occurrence of stresses are decisive for the development of the crops. Thus, the work aimed to verify the effect of seed vigor on growth and dry weight partition of wheat plants subjected to water stress. For growth evaluation, the experimental design was completely randomized, in a 2 x 2 x 8 factorial scheme (vigor level x water regime x collection time), with four replications. To evaluate the yield of the seeds, the design was completely randomized, in a 2 x 2 factorial scheme (level of vigor x water regime), with four replications. Total dry weight, dry weight production rate, relative growth rate, leaf area ratio, leaf area, solar energy conversion efficiency, dry weight partition and harvest index were evaluated. Total dry weight production, dry weight production rate, leaf area, leaf weight ratio, solar energy conversion efficiency and yield were higher for plants from highly vigorous seeds under field capacity. The yield was higher for plants with high vigor compared to those with low vigor in field capacity.","PeriodicalId":17113,"journal":{"name":"Journal of Seed Science","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47669588","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 : 2021-07-05DOI: 10.1590/2317-1545v43244858
Carlos Henrique Queiroz Rego, S. M. Cicero, Fabiano França-Silva, Francisco Guilhien Gomes-Junior
Abstract: The use of computational resources to assess the physiological potential of seeds has attracted the attention of researchers and professionals in the seed sector. The aim of this study was to evaluate the vigor of cowpea seeds using the Vigor-S software (Automated Seed Vigor Analysis System), in comparison to the information provided by traditional vigor tests that are recommended for the species. Seven seed lots of the cultivar BRS Guariba were used. They underwent germination and seed vigor assessment by testing first germination count, accelerated aging, electrical conductivity, seedling emergence, speed of seedling emergence and use of Vigor-S, an automated image system for seedling assessment, in two evaluation periods. The data underwent analysis of variance, in a completely randomized design and their means were compared by the Scott-Knott test (p ≤ 0.05). An analysis was made of the correlation between the vigor tests traditionally used and the variables provided by Vigor-S. Using the Vigor-S software for automated image analysis of cowpea seedlings three days after sowing is an efficient alternative to detect differences in vigor between seed lots, similarly to traditional seed vigor evaluations.
{"title":"Assessing the vigor of cowpea seeds using the Vigor-S software","authors":"Carlos Henrique Queiroz Rego, S. M. Cicero, Fabiano França-Silva, Francisco Guilhien Gomes-Junior","doi":"10.1590/2317-1545v43244858","DOIUrl":"https://doi.org/10.1590/2317-1545v43244858","url":null,"abstract":"Abstract: The use of computational resources to assess the physiological potential of seeds has attracted the attention of researchers and professionals in the seed sector. The aim of this study was to evaluate the vigor of cowpea seeds using the Vigor-S software (Automated Seed Vigor Analysis System), in comparison to the information provided by traditional vigor tests that are recommended for the species. Seven seed lots of the cultivar BRS Guariba were used. They underwent germination and seed vigor assessment by testing first germination count, accelerated aging, electrical conductivity, seedling emergence, speed of seedling emergence and use of Vigor-S, an automated image system for seedling assessment, in two evaluation periods. The data underwent analysis of variance, in a completely randomized design and their means were compared by the Scott-Knott test (p ≤ 0.05). An analysis was made of the correlation between the vigor tests traditionally used and the variables provided by Vigor-S. Using the Vigor-S software for automated image analysis of cowpea seedlings three days after sowing is an efficient alternative to detect differences in vigor between seed lots, similarly to traditional seed vigor evaluations.","PeriodicalId":17113,"journal":{"name":"Journal of Seed Science","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43765250","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 : 2021-07-05DOI: 10.1590/2317-1545v43248603
Helio Fernandes Ibanhes Neto, Ana Maria Camêlo da Silva, C. Sumida, Marjori dos Santos Gouveia, Verônica Pellizzaro, L. Takahashi
Abstract: The association between beneficial microorganisms and green beans can accelerate establishment in the field. The objective of this study was to investigate the influence of seed treatments in different doses of Bacillus subtilis on the physiological potential of green beans. Seeds from the cultivar Macarrão Baixo were used. The study used a completely randomized design in a double factorial scheme with factor A in the treatments: Pelliculation (PC), Pelliculation with Drying (PCD), Pre-Imbibition (PI), Biopriming (BP); factor B, doses of B. subtilis: 0; 7; 14 and 28 mL of a commercial product.kg of seed-1, and a control. The following treatments were applied: moisture content analysis, first count and final germination, electrical conductivity, length, fresh and dry seedling weight, speed index, and final emergence. Analysis of variance was applied to the data and when significant, it was compared using Tukey’s test and polynomial regression; for the absolute control, orthogonal contrast was applied, with p < 0.05 for all analyses. The treatments did not impair seed viability. Vigor benefited with the use of PI and doses between 16 and 20 mL of p.c.kg of seed-1. PI alone had the best performance. Biopriming, associated with B. subtilis, favors the vigor of green beans.
摘要/ Abstract摘要:有益微生物与四季豆之间的关联可以加速四季豆在田间的建立。本研究旨在探讨不同剂量枯草芽孢杆菌种子处理对四季豆生理电位的影响。使用品种macarr o Baixo的种子。本研究采用完全随机设计的双因子方案，并考虑因子a的影响:制膜(PC)、制膜干燥(PCD)、预吸(PI)、生物吸膜(BP);因子B，枯草芽孢杆菌剂量:0;7;14和28毫升的商业产品。1号种子1公斤，对照1公斤。分别进行水分分析、初芽计数和终芽、电导率、幼苗长度、鲜苗和干苗重、幼苗速度指数和终出苗处理。对数据进行方差分析，当数据显著时，采用Tukey检验和多项式回归进行比较;绝对对照采用正交对比，所有分析p < 0.05。这些处理对种子活力没有影响。在每公斤种子-1中施用16 - 20毫升的PI对活力有好处。单独使用PI具有最好的性能。与枯草芽孢杆菌有关的生物熏蒸有利于四季豆的活力。
{"title":"Physiological potential of green bean seeds treated with Bacillus subtilis","authors":"Helio Fernandes Ibanhes Neto, Ana Maria Camêlo da Silva, C. Sumida, Marjori dos Santos Gouveia, Verônica Pellizzaro, L. Takahashi","doi":"10.1590/2317-1545v43248603","DOIUrl":"https://doi.org/10.1590/2317-1545v43248603","url":null,"abstract":"Abstract: The association between beneficial microorganisms and green beans can accelerate establishment in the field. The objective of this study was to investigate the influence of seed treatments in different doses of Bacillus subtilis on the physiological potential of green beans. Seeds from the cultivar Macarrão Baixo were used. The study used a completely randomized design in a double factorial scheme with factor A in the treatments: Pelliculation (PC), Pelliculation with Drying (PCD), Pre-Imbibition (PI), Biopriming (BP); factor B, doses of B. subtilis: 0; 7; 14 and 28 mL of a commercial product.kg of seed-1, and a control. The following treatments were applied: moisture content analysis, first count and final germination, electrical conductivity, length, fresh and dry seedling weight, speed index, and final emergence. Analysis of variance was applied to the data and when significant, it was compared using Tukey’s test and polynomial regression; for the absolute control, orthogonal contrast was applied, with p < 0.05 for all analyses. The treatments did not impair seed viability. Vigor benefited with the use of PI and doses between 16 and 20 mL of p.c.kg of seed-1. PI alone had the best performance. Biopriming, associated with B. subtilis, favors the vigor of green beans.","PeriodicalId":17113,"journal":{"name":"Journal of Seed Science","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44927683","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 : 2021-07-05DOI: 10.1590/2317-1545v43248633
A. A. Cardoso, S. Barbosa, B. Santos
Abstract: Garcinia brasiliensis is a tropical tree species of economic importance to local populations in the Amazon and Atlantic forests. The plant propagation of this species occurs mostly through seeds and despite that very little information about seedling emergence and growth is currently available. Here we assessed basic information on the seed and seedling ecophysiology of G. brasiliensis aiming at providing key details for seed propagation. Seeds are large and contain high levels of water when recently collected (c. 50%). Seed storage, especially under low temperature, resulted in very low seedling emergence. Fruit storage at c. 25 °C, on the other hand, was demonstrated to be the best option for maintaining seed viability in the short term. Removal of the seed coat considerably hastened and increased the percentage emergence of seedlings, despite the light condition. Similarly, a higher percentage and index of seedling emergence was observed under 35 °C over 25 °C, despite the substrate. Amongst all the substrates tested, sand resulted in lower seedling emergence. Cultivating seedlings in vermiculate and at 25 °C provided the best condition for root and shoot growth. Ideal conditions of light and temperature for seedling emergence and development mirror the environmental conditions under which plants of G. brasiliensis establish in nature.
{"title":"Optimum conditions for seed propagation of Garcinia brasiliensis: mimicking natural habitats allows better results","authors":"A. A. Cardoso, S. Barbosa, B. Santos","doi":"10.1590/2317-1545v43248633","DOIUrl":"https://doi.org/10.1590/2317-1545v43248633","url":null,"abstract":"Abstract: Garcinia brasiliensis is a tropical tree species of economic importance to local populations in the Amazon and Atlantic forests. The plant propagation of this species occurs mostly through seeds and despite that very little information about seedling emergence and growth is currently available. Here we assessed basic information on the seed and seedling ecophysiology of G. brasiliensis aiming at providing key details for seed propagation. Seeds are large and contain high levels of water when recently collected (c. 50%). Seed storage, especially under low temperature, resulted in very low seedling emergence. Fruit storage at c. 25 °C, on the other hand, was demonstrated to be the best option for maintaining seed viability in the short term. Removal of the seed coat considerably hastened and increased the percentage emergence of seedlings, despite the light condition. Similarly, a higher percentage and index of seedling emergence was observed under 35 °C over 25 °C, despite the substrate. Amongst all the substrates tested, sand resulted in lower seedling emergence. Cultivating seedlings in vermiculate and at 25 °C provided the best condition for root and shoot growth. Ideal conditions of light and temperature for seedling emergence and development mirror the environmental conditions under which plants of G. brasiliensis establish in nature.","PeriodicalId":17113,"journal":{"name":"Journal of Seed Science","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49560202","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 : 2021-05-31DOI: 10.1590/2317-1545V43237239
A. C. Penido, V. Rodrigues, Marcos Vinícios de Carvalho, Levi Suzigan Krepischi, C. Pereira, João Almir Oliveira
Abstract: Maintaining the health of coffee seeds is especially important during storage, as soil fungi and storage fungi can considerably reduce seed quality. Thus, chemical treatments for protection of seeds in storage becomes important in agricultural production. It is necessary to evaluate the effects of these treatments on seedling development and the protection they provide against storage fungi, aiming at seed longevity and preventing rapid deterioration. The aim of this study was to evaluate the effect of chemical treatment on the physiological and sanitary quality of stored coffee seeds. Seeds of five Coffea arabica cultivars were pre-dried, treated with Vitavax®-Thiram, and placed in cold storage at 10 °C for nine months. Seed physiological quality was evaluated every three months by the germination test and by determination of root emergence percentage, seedlings with expanded cotyledonary leaves, and seedling dry matter. Seed health quality was assessed by the health test. The chemical treatment with Vitavax-Thiram does not affect the physiological quality of stored Coffea arabica seeds. Seed treatment before storage is effective in reducing the inoculum potential of Fusarium spp. and Phoma spp. in coffee seeds.
{"title":"Effect of chemical treatment on the physiological and sanitary quality of stored coffee seeds","authors":"A. C. Penido, V. Rodrigues, Marcos Vinícios de Carvalho, Levi Suzigan Krepischi, C. Pereira, João Almir Oliveira","doi":"10.1590/2317-1545V43237239","DOIUrl":"https://doi.org/10.1590/2317-1545V43237239","url":null,"abstract":"Abstract: Maintaining the health of coffee seeds is especially important during storage, as soil fungi and storage fungi can considerably reduce seed quality. Thus, chemical treatments for protection of seeds in storage becomes important in agricultural production. It is necessary to evaluate the effects of these treatments on seedling development and the protection they provide against storage fungi, aiming at seed longevity and preventing rapid deterioration. The aim of this study was to evaluate the effect of chemical treatment on the physiological and sanitary quality of stored coffee seeds. Seeds of five Coffea arabica cultivars were pre-dried, treated with Vitavax®-Thiram, and placed in cold storage at 10 °C for nine months. Seed physiological quality was evaluated every three months by the germination test and by determination of root emergence percentage, seedlings with expanded cotyledonary leaves, and seedling dry matter. Seed health quality was assessed by the health test. The chemical treatment with Vitavax-Thiram does not affect the physiological quality of stored Coffea arabica seeds. Seed treatment before storage is effective in reducing the inoculum potential of Fusarium spp. and Phoma spp. in coffee seeds.","PeriodicalId":17113,"journal":{"name":"Journal of Seed Science","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44848969","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 : 2021-05-31DOI: 10.1590/2317-1545V43237830
Thaísa Fernanda Oliveira, H. Santos, Douglas Pelegrini Vaz-Tostes, P. Y. Cavasin, D. K. Rocha, G. V. Tirelli
Abstract: Analyses of germination of seeds under artificial stress conditions are tools for a better understanding of the survival and adaptation capacity of species under natural stress conditions. Therefore, the aim of this study was to evaluate the effect of priming on seed germination, on breaking of dormancy, and on the length of Urochloa brizantha seedlings under water restriction and salt stress conditions. A completely randomized experimental design was used with four replications in a 3 × 6 factorial arrangement consisting of 3 germination conditions (water, water restriction with PEG, and salinity with NaCl) and 6 treatments [five priming solutions (distilled water, potassium nitrate, spermidine, gibberellin, and sodium nitroprusside) and a control (unprimed seeds)]. The following determinations were made: seed moisture content after priming (before drying) and after drying the seeds, germination test at seven and twenty-one days after sowing, germination speed index, viability by the tetrazolium test of the seeds remaining from the germination test, and seedling length. Priming is effective in minimizing the negative effects of water restriction and salinity. Use of sodium nitroprusside as a priming solution results in a lower percentage of dormant seeds and greater germination, vigor, and plant development.
{"title":"Protective action of priming agents on Urochloa brizantha seeds under water restriction and salinity conditions","authors":"Thaísa Fernanda Oliveira, H. Santos, Douglas Pelegrini Vaz-Tostes, P. Y. Cavasin, D. K. Rocha, G. V. Tirelli","doi":"10.1590/2317-1545V43237830","DOIUrl":"https://doi.org/10.1590/2317-1545V43237830","url":null,"abstract":"Abstract: Analyses of germination of seeds under artificial stress conditions are tools for a better understanding of the survival and adaptation capacity of species under natural stress conditions. Therefore, the aim of this study was to evaluate the effect of priming on seed germination, on breaking of dormancy, and on the length of Urochloa brizantha seedlings under water restriction and salt stress conditions. A completely randomized experimental design was used with four replications in a 3 × 6 factorial arrangement consisting of 3 germination conditions (water, water restriction with PEG, and salinity with NaCl) and 6 treatments [five priming solutions (distilled water, potassium nitrate, spermidine, gibberellin, and sodium nitroprusside) and a control (unprimed seeds)]. The following determinations were made: seed moisture content after priming (before drying) and after drying the seeds, germination test at seven and twenty-one days after sowing, germination speed index, viability by the tetrazolium test of the seeds remaining from the germination test, and seedling length. Priming is effective in minimizing the negative effects of water restriction and salinity. Use of sodium nitroprusside as a priming solution results in a lower percentage of dormant seeds and greater germination, vigor, and plant development.","PeriodicalId":17113,"journal":{"name":"Journal of Seed Science","volume":"11 2","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41299374","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 : 2021-05-14DOI: 10.1590/2317-1545V43244602
Ana Luiza Oliveira Vilela, S. Rosa, S. Coelho, N.A.B. Fávaris, T. B. Fantazzini, J. L. Baute
Abstract: Seed deterioration induces the formation of free radicals and proliferation of microorganisms, but the application of external antioxidants may lessen these effects. The aim of this study was to investigate the antioxidant and antimicrobial activity of cathode and anode water on the physiological quality and health of Coffea arabica L. seeds. Part of the seeds were soaked in cathode water and the other part in anode water for periods of 1, 6, 12, 24, and 36 hours. The physiological quality of the seeds was evaluated by the germination test and tetrazolium test, and seed health by the Blotter test. Analysis of variance and Pearson correlation analysis were performed on the data for all the response variables. Soaking in cathode water or anode water up to 24 hours improves the physiological quality of coffee seeds. Anode water has a beneficial effect on the health of coffee seeds, reducing the incidence of Fusarium spp., Penicillium spp., Cladosporium spp., and Alternaria spp. after one hour of soaking and of Aspergillus spp. after six hours. Soaking in cathode water for a period of one hour leads to a reduction in the fungi Aspergillus spp., Fusarium spp., Cladosporium spp., and Alternaria spp., and reduction in Penicillium spp. after six hours.
{"title":"Antioxidant and antimicrobial activity of cathode and anode water in Coffea arabica L. seeds","authors":"Ana Luiza Oliveira Vilela, S. Rosa, S. Coelho, N.A.B. Fávaris, T. B. Fantazzini, J. L. Baute","doi":"10.1590/2317-1545V43244602","DOIUrl":"https://doi.org/10.1590/2317-1545V43244602","url":null,"abstract":"Abstract: Seed deterioration induces the formation of free radicals and proliferation of microorganisms, but the application of external antioxidants may lessen these effects. The aim of this study was to investigate the antioxidant and antimicrobial activity of cathode and anode water on the physiological quality and health of Coffea arabica L. seeds. Part of the seeds were soaked in cathode water and the other part in anode water for periods of 1, 6, 12, 24, and 36 hours. The physiological quality of the seeds was evaluated by the germination test and tetrazolium test, and seed health by the Blotter test. Analysis of variance and Pearson correlation analysis were performed on the data for all the response variables. Soaking in cathode water or anode water up to 24 hours improves the physiological quality of coffee seeds. Anode water has a beneficial effect on the health of coffee seeds, reducing the incidence of Fusarium spp., Penicillium spp., Cladosporium spp., and Alternaria spp. after one hour of soaking and of Aspergillus spp. after six hours. Soaking in cathode water for a period of one hour leads to a reduction in the fungi Aspergillus spp., Fusarium spp., Cladosporium spp., and Alternaria spp., and reduction in Penicillium spp. after six hours.","PeriodicalId":17113,"journal":{"name":"Journal of Seed Science","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48573839","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 : 2021-05-14DOI: 10.1590/2317-1545V43247033
Maíra Paes Lacerda, R. C. Umburanas, K. V. Martins, M. A. Rodrigues, K. Reichardt, D. Dourado-Neto
Abstract: The interaction of different seed chemical treatment with seedlings germination, vigor and stress metabolism attributes needs to be better understood in soybean crop. The objectives of this study were to evaluate seed vigor, germination, and biochemical attributes of soybean seedlings as a function of different seed chemical treatments. A completely randomized experimental design was adopted, with 8 seed treatments and 4 replicates. Seed germination, vigor (first germination count, cold test, accelerated aging, emergence speed index), seedling biomass, enzimes activity and SVIS® analysis were evaluated. The evaluated treatments had no difference relative to control on seed germination and vigor. Through image analysis, the seedling uniformity index were equal or higher than control with the seed chemical treatment, while vigor and growth indexes had no difference. Shoot biomass of seedlings tends to decrease with seed chemical treatments, and root biomass had no difference. Seed chemical treatments increased the activity of hydrogen peroxide in seedlings by 6 to 40% compared to control; the activity of catalase increased by 87 to 184% compared to control; and no effect was observed in lipids peroxidation. Overall, seed chemical treatment benefited the physiological activity of soybean seedlings and improved antioxidant metabolism activity. None of the seed chemical treatments used were phytotoxic.
{"title":"Vigor and oxidation reactions in soybean seedlings submitted to different seed chemical treatments","authors":"Maíra Paes Lacerda, R. C. Umburanas, K. V. Martins, M. A. Rodrigues, K. Reichardt, D. Dourado-Neto","doi":"10.1590/2317-1545V43247033","DOIUrl":"https://doi.org/10.1590/2317-1545V43247033","url":null,"abstract":"Abstract: The interaction of different seed chemical treatment with seedlings germination, vigor and stress metabolism attributes needs to be better understood in soybean crop. The objectives of this study were to evaluate seed vigor, germination, and biochemical attributes of soybean seedlings as a function of different seed chemical treatments. A completely randomized experimental design was adopted, with 8 seed treatments and 4 replicates. Seed germination, vigor (first germination count, cold test, accelerated aging, emergence speed index), seedling biomass, enzimes activity and SVIS® analysis were evaluated. The evaluated treatments had no difference relative to control on seed germination and vigor. Through image analysis, the seedling uniformity index were equal or higher than control with the seed chemical treatment, while vigor and growth indexes had no difference. Shoot biomass of seedlings tends to decrease with seed chemical treatments, and root biomass had no difference. Seed chemical treatments increased the activity of hydrogen peroxide in seedlings by 6 to 40% compared to control; the activity of catalase increased by 87 to 184% compared to control; and no effect was observed in lipids peroxidation. Overall, seed chemical treatment benefited the physiological activity of soybean seedlings and improved antioxidant metabolism activity. None of the seed chemical treatments used were phytotoxic.","PeriodicalId":17113,"journal":{"name":"Journal of Seed Science","volume":"43 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47437309","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 : 2021-01-01DOI: 10.1590/2317-1545v43245104
Matheus André de Jesus, Victor Marsel Amorim Reis, Fellipe Ramos Sampaio, Francisco Leandro Posse, R. M. Barbosa
Abstract: Soybean is a crop of great economic relevance in the world, with seed production being one of the most important sectors of its agro-industrial complex. Processing is one of the final stages of the seeds production process, it aims to remove impurities, select seeds by shape, size and density and pack properly. Monitoring and quality control at different stages of the process ensures that seeds meet storage and market standards. The aim of this study was to evaluate the different stages of processing in the physical and physiological performance of three cultivars of soybean seeds using statistical process control tools. The work was carried out at the seed processing unit with the cultivars M8644 IPRO, M8349 IPRO and M8808 IPRO, with sampling at eight points throughout the process. Water content, physical purity, germination, first count, accelerated aging, tetrazolium (vigor and viability), mechanical damage and electrical conductivity were evaluated. During the process, mean and amplitude control charts were used for each test. The use of control charts made it possible to monitor the process of soybean seed processing, pointing out the methodology as a tool to determine existing problems, to promote continuous improvement in the performance of seed processing.
{"title":"Quality control charts in the processing of soybean seeds","authors":"Matheus André de Jesus, Victor Marsel Amorim Reis, Fellipe Ramos Sampaio, Francisco Leandro Posse, R. M. Barbosa","doi":"10.1590/2317-1545v43245104","DOIUrl":"https://doi.org/10.1590/2317-1545v43245104","url":null,"abstract":"Abstract: Soybean is a crop of great economic relevance in the world, with seed production being one of the most important sectors of its agro-industrial complex. Processing is one of the final stages of the seeds production process, it aims to remove impurities, select seeds by shape, size and density and pack properly. Monitoring and quality control at different stages of the process ensures that seeds meet storage and market standards. The aim of this study was to evaluate the different stages of processing in the physical and physiological performance of three cultivars of soybean seeds using statistical process control tools. The work was carried out at the seed processing unit with the cultivars M8644 IPRO, M8349 IPRO and M8808 IPRO, with sampling at eight points throughout the process. Water content, physical purity, germination, first count, accelerated aging, tetrazolium (vigor and viability), mechanical damage and electrical conductivity were evaluated. During the process, mean and amplitude control charts were used for each test. The use of control charts made it possible to monitor the process of soybean seed processing, pointing out the methodology as a tool to determine existing problems, to promote continuous improvement in the performance of seed processing.","PeriodicalId":17113,"journal":{"name":"Journal of Seed Science","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67323451","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 : 2021-01-01DOI: 10.1590/2317-1545V43235272
H. T. R. Amaro, E. F. Araújo, R. F. Araújo, L. Dias, F. Silva, A. M. S. D. S. David
Abstract: This study aimed to evaluate the effect of maturation fruit and drying temperatures stages on oil content and the physiological performance of crambe seeds. Randomized blocks were the experimental design, with four replications. Harvests occurred when the plants reached 20, 40, 60, 80 and 100% brown color fruits. After harvest, seeds were dried at different temperatures (natural and artificial air at 30, 45 and 60 °C). The seeds were evaluated for the weight of a thousand seeds, productivity, oil content, germination and vigor (count of the first germination and seedling emergence). Crambe seeds, FMS Brilhante cultivar, reach the maximum oil content with harvests made from 70% of total brown color fruits. Drying temperatures do not affect the oil content of the seeds. Harvesting crambe seed aiming at the highest physiological quality should occur when the plants have between 75 and 85% brown fruits. Artificial drying at 30 and 45 °C can be recommended for crambe seeds, favoring the production of quality seeds.
{"title":"Maturation fruits and drying on quality of crambe seeds","authors":"H. T. R. Amaro, E. F. Araújo, R. F. Araújo, L. Dias, F. Silva, A. M. S. D. S. David","doi":"10.1590/2317-1545V43235272","DOIUrl":"https://doi.org/10.1590/2317-1545V43235272","url":null,"abstract":"Abstract: This study aimed to evaluate the effect of maturation fruit and drying temperatures stages on oil content and the physiological performance of crambe seeds. Randomized blocks were the experimental design, with four replications. Harvests occurred when the plants reached 20, 40, 60, 80 and 100% brown color fruits. After harvest, seeds were dried at different temperatures (natural and artificial air at 30, 45 and 60 °C). The seeds were evaluated for the weight of a thousand seeds, productivity, oil content, germination and vigor (count of the first germination and seedling emergence). Crambe seeds, FMS Brilhante cultivar, reach the maximum oil content with harvests made from 70% of total brown color fruits. Drying temperatures do not affect the oil content of the seeds. Harvesting crambe seed aiming at the highest physiological quality should occur when the plants have between 75 and 85% brown fruits. Artificial drying at 30 and 45 °C can be recommended for crambe seeds, favoring the production of quality seeds.","PeriodicalId":17113,"journal":{"name":"Journal of Seed Science","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67323607","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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