Seed quality changes in cowpea (Vigna sinensis) during seed development and maturation

Eskandari, Hamdollah

doi:10.15258/sst.2012.40.1.12

Cited by 15 publications

(13 citation statements)

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“…The mean values of the percentage of dead and abnormal seedlings, 8.7 and 9.0%, respectively, can be considered low (Table 3), as result of the low damage level of fresh seeds, and also were not subjected to adverse environmental conditions (Eskandari, 2012). The values observed for thousand grain weight and oil content are in agreement with the results obtained by other authors.…”

Section: Analysis Of Variance and Estimation Of Genetic Parameterssupporting

confidence: 88%

Genetic diversity among progenies of Crambe abyssinica Hochst for seed traits

Lara-Fioreze

Tomaz

Fioreze

et al. 2013

Industrial Crops and Products

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Section: Analysis Of Variance and Estimation Of Genetic Parameterssupporting

confidence: 88%

Genetic diversity among progenies of Crambe abyssinica Hochst for seed traits

Lara-Fioreze

Tomaz

Fioreze

et al. 2013

Industrial Crops and Products

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“…Gradual reduction on moisture content throughout seed maturation process has also been observed in mayze (David et al, 2003;Faria et al, 2005;Araújo et al, 2006), common bean (Botelho et al, 2010;Bolina, 2012) and Southern pea (Eskandari, 2012).…”

Section: Resultsmentioning

confidence: 80%

“…As examples, it can be cited the studies performed by David et al (2003), Faria et al (2005), and Araújo et al (2006) with seeds of maize (Zea mays L.); Botelho et al (2010) and Bolina (2012) with seeds of common bean (Phaseolus vulgaris L.) and Eskandari (2012) with seeds of southern pea (Vigna sinensis (L.). However, information on physiological maturity and ideal harvest time of cowpea seeds are still scarce, especially for the cv.…”

Section: Introductionmentioning

confidence: 99%

Physiological maturation of cowpea seeds

et al. 2014

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-The seed maturation process is genetically controlled and involves an arranged sequence of morphological and physiological changes extending from fertilization to its total independence from the mother-plant. These changes also include a set of preparatory phases for the germination process, which are characterized for the synthesis and accumulation of nutrient reserves. Thereby, this study was developed aiming at assessing development and physiological quality of cowpea seeds during maturation process. To this, the cowpea pods of cultivar BRS-Guariba were harvested from the tenth day after anthesis (DAA) until the twenty sixth DAA, with four days intervals. Immediately after each harvest, seeds were manually extracted from the pods and then subjected to the following determinations: moisture content, first count of germination, final germination percentage, length of shoots and roots, hypocotyl diameter, and seedling dry mass. The experiment was conducted in a completely randomized design, with five treatments (DAA), and four replications to each treatment. Results have shown that cowpea seeds have fairly fast physiological maturation, and that seeds harvested between 14 and 18 DAA have better vigor as well as higher germination rates; thus the harvest performed during this period does not cause damages to seeds.Index terms: Vigna unguiculata L., physiological quality, vigor. Maturação fisiológica de sementes de feijão-caupiRESUMO -A maturação da semente é controlada geneticamente, envolvendo uma sequência ordenada de alterações verificadas a partir da fecundação até que se tornem independentes da planta-mãe. Essas alterações compreendem um conjunto de etapas que preparam para o sucesso da futura germinação, caracterizada pela síntese e acúmulo de reservas. Dessa forma, este estudo teve por objetivo avaliar o desenvolvimento e qualidade fisiológica de sementes de feijão-caupi durante o processo de maturação. Para isso, vagens da cultivar BRS-Guariba de feijão-caupi foram colhidas a partir do décimo dia após a antese (DAA) até o vigésimo sexto DAA, com intervalos de quatro dias. Após cada coleta, as sementes foram manualmente extraídas das vagens e submetidas às seguintes determinações: grau de umidade, primeira contagem de germinação, porcentagem final de germinação, comprimento de parte aérea e raízes, diâmetro do hipocótilo e massa seca das plântulas. O experimento foi conduzido em delineamento experimental inteiramente casualizado, com cinco tratamentos (DAA) e quatro repetições cada. As sementes de feijão-caupi apresentam maturação fisiológica bastante rápida e aquelas colhidas entre 14 e 18 DAA têm melhor vigor e maior porcentagem de germinação; assim, colheita deve ser realizada durante esse período, pois não causa danos às sementes.Termos para indexação: Vigna unguiculata L., qualidade fisiológica, vigor.

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“…The hundred‐grain weight of maize seeds linearly increased with progressing seed development up to 55 days after pollination; the percentage of seed germination increased with enhancing seed weight . However, it was observed that the highest seed quality of cowpea was attained at physiological maturity (52–56 days after pollination) which occurred 8–16 days after the end of the seed filling period or mass maturity . Maximum seed quality of sponge gourd was acquired 7 days after the attainment of the highest dry weight .…”

Section: Introductionmentioning

confidence: 98%