Physiological and Sanitary Quality of Desiccated and Stored Azuki Bean Seeds

Tavares, Cássio Jardim; Ferreira, Patrícia Cardoso; Jakelaitis, Adriano; Sales, Juliana de Fátima; Resende, Osvaldo

doi:10.1590/1983-21252016v29n108rc

Cited by 10 publications

(12 citation statements)

References 17 publications

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“…Studies related to pre-harvest desiccation for seed production have been conducted mainly in crops such as rice (He et al, 2015), beans (McNaughton et al, 2015;Tavares et al, 2016), soybean (Kappes et al al., 2012) and wheat (Jaskulski and Jaskulska, 2014). For the soybean crop, several authors report that pre-harvest desiccation allows uniformity of maturation, promoting uniform drying of the pods and seeds, so that it anticipates the harvest without harming the yield and the quality of the seeds, since they do not induce the dehiscence of the pods (Lacerda et al, 2003;Pelúzio et al, 2008;Kappes et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Pre-Harvest Desiccation in Productivity and Physiological Quality of Cowpea Seeds

et al. 2019

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Pre-harvest desiccation is an important strategy to anticipate harvesting, preventing the seed from being left in the field in unfavorable climatic conditions. However, little is known about the use of desiccants and their application times on cowpea (Vigna unguiculata). The objective of this study was to evaluate the effect of desiccant application at different seasons and of desiccant herbicides on productivity and physiological quality of cowpea seeds. Five dessicants were evaluated: paraquat, paraquat sequential application, glufosinate-ammonium, glyphosate with sequential application of paraquat and paraquat + diuron mixture applied in four seasons: 50% of the pods with green coloration and with seeds formed (season I); 70% of the pods in the purple coloration (season II), 90% of the pods in the coloration brown (season III) and 100% of the pods in the coloration brown (season IV), plus a control without the application of desiccants, in which harvesting was performed when 100% of the pods were brown. The number of days of anticipation of harvest, productivity, uniformity test, mass of one hundred seeds, germination and vigor of the seeds were evaluated. None of desiccation strategies affect the physiological seed quality, independent of the application season. The desquaments paraquat, glufosinate-ammonium and the paraquat+diuron mixture, when applied in seasons I and II, provided anticipation of the harvest in up to 13 days and 9 days, respectively, however, the size of the seeds and consequently the productivity were affected.

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Section: Introductionmentioning

confidence: 99%

Pre-Harvest Desiccation in Productivity and Physiological Quality of Cowpea Seeds

et al. 2019

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“…These herbicides did not affect the physiological potential of the seeds after six months of storage, and some variables showed better results than those of the control. Tavares et al (2016) found that paraquat and flumioxazin had no effect on the physiological quality of azuki bean seeds after six months of storage. However, Santos et al (2005) reported that the use of carfentrazone-ethyl as desiccant at preharvest of common bean seeds compromises the physiological potential of stored seeds.…”

Section: Methodsmentioning

confidence: 91%

“…Despite these negative results, the treatment with saflufenacil presented higher EM and ESI than the control (Table 4). Tavares et al (2016) evaluated the effect of different herbicides applied at pre-harvest on seed quality of adzuki bean (Vigna angularis) and found negative effects of glyphosate and glufosinateammonium on seed germination and vigor after six months of storage. These herbicides may have been translocated to seeds still in formation, since they were sprayed directly on the pods, which are located above the leaves, negatively affecting their quality.…”

Section: Methodsmentioning

confidence: 99%

“…This practice enables the anticipation of harvest, facilitates the mechanized harvest of seeds, and promotes maturation uniformity for species with indeterminate growth habit, without causing losses in seed yield, germination, and vigor. Positive results of preharvest desiccation were found for seeds of cowpea (ASSIS et al, 2019), rice (HE et al, 2015), common bean (MCNAUGHTON et al, 2015;TAVARES et al, 2016), soybean (KAPPES et al, 2012;SANTOS et al, 2018), and wheat (JASKULSKI; JASKULSKA, 2014).…”

Section: Introductionmentioning

confidence: 99%

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Chemical Desiccants for Anticipation of Harvest and Physiological Quality of Cowpea Seeds

et al. 2020

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Information about the effect of herbicides on cowpea seed quality is scarce. The objective of this work was to evaluate the effect of using chemical desiccants at pre-harvest on the anticipation of harvest and physiological quality of cowpea seeds of the cultivar BRS-Tumucumaque, before and after storage. Two experiments were conducted: experiment 1 was conducted under a randomized block design, with four replications; the treatments consisted of seven herbicides (carfentrazone-ethyl, saflufenacil, glyphosate, paraquat, flumioxazin, glufosinate-ammonium, and diquat) and a control treatment; anticipation of harvest, and seed water content, germination, and vigor were evaluated. The seeds were stored for six months in controlled environment and not-controlled environment rooms and evaluated for water content, germination, and vigor in Experiment 2, which was conducted in a 7^2+1 factorial arrangement, with four replications; the first factor consisted of the seven herbicides, the second factor was the two storage environments, plus a control treatment. The results showed 3 to 9 days of anticipation of harvest relative to the control. The glufosinate -ammonium herbicide negatively affected seed germination and vigor. The glyphosate herbicide decreased seed germination and vigor after storage. The physiological quality of cowpea seeds at the post -harvest period and after six months of storage was not affected by the carfentrazone-ethyl and flumioxazin herbicides. Paraquat and diquat were the most efficient herbicides for the anticipation of harvest (nine days). Glyphosate and glufosinate -ammonium were the most harmful herbicides to seed physiological quality. The controlled environment room was the most adequate environment for seed conservation.

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“…Durante a fase de maturação das sementes, condições ambientais desfavoráveis ao período de colheita podem acarretar no ataque de microrganismos e de pragas vetores de patógenos (Juhász et al, 2013). Sementes que atingiram sua maturidade fisiológica e que permanecem no campo durante algum tempo ao sofrerem mudanças climáticas, especialmente na temperatura e umidade estão sujeitos a sofrer o ataque de patógenos, e consequentemente a ocorrência de efeitos deletério na qualidade fisiológica e sanitária (Tavares et al, 2016).…”

Section: Fatores Que Afetam a Qualidade Sanitária E Favorecem Ao Ataqunclassified

Sanidade de sementes e sua influência no controle de fitopatógenos

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2020

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A semente é considerada o principal insumo agrícola, sendo fundamental para o sucesso da produção. Para que uma semente seja considerada de excelência, deve apresentar qualidade física, fisiológica, genética e sanitária. Sendo esses fatores determinantes para que ela consiga expressar todo o seu potencial. O ataque de agentes fitopatogênicos afeta o sucesso da produção agrícola, uma vez que pode limitar o crescimento e o desenvolvimento das culturas. Além do fato das sementes serem consideradas eficientes fontes de disseminação de patógenos, dentre os principais destacam-se os fungos, bactérias, vírus e alguns nematoides. Assim, a adoção de métodos de controle é fundamental para evitar que patógenos sejam transmitidos por sementes, como o controle químico, físico, biológico e alternativo como o uso de extratos e óleos vegetais. A adoção e a eficiência destas técnicas de controle de patógenos encontrados nas sementes, passa pelo tratamento preventivo e sua eficácia no combate aos dos organismos presentes interna e externamente aderido as sementes, possibilitando a manutenção de sua qualidade.

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Physiological and Sanitary Quality of Desiccated and Stored Azuki Bean Seeds

Cited by 10 publications

References 17 publications

Pre-Harvest Desiccation in Productivity and Physiological Quality of Cowpea Seeds

Pre-Harvest Desiccation in Productivity and Physiological Quality of Cowpea Seeds

Chemical Desiccants for Anticipation of Harvest and Physiological Quality of Cowpea Seeds

Sanidade de sementes e sua influência no controle de fitopatógenos

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