普通豆系籽粒中最大干物质积累的变异

IF 0.7 4区农林科学 Q3 AGRICULTURE, MULTIDISCIPLINARY

Pesquisa Agropecuaria Brasileira Pub Date : 2023-08-25 DOI:10.1590/s1678-3921.pab2023.v58.03180

Júlio Augusto de Castro Miguel, Rita de Kassia Siqueira Teixeira, A. F. B. Abreu, M. A. P. Ramalho, Elaine Aparecida de Souza

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引用次数: 0

摘要

摘要本研究的目的是验证carioca型普通豆籽粒干物质积累速率是否存在变异，并确定该性状的选择成功与否和最佳收获时间。通过定期采集的5个植株的样品，在3个播种季节对16个carioca型籽粒品系进行了评价。用二次方程估计获得籽粒中最大干物质所需的天数。在各系之间观察到低变异性，不利于本性状的选择。收获的理想时刻是当100%的谷物呈现出典型的carioca普通豆的条纹时，这些条纹可能在同一植物的豆荚之间和内部有所不同。如果在达到完全生理成熟之前进行收获，籽粒中的干物质平均每天减少2.75%。

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Variability among common bean lines for maximum dry matter accumulation in the grains

Abstract The objective of this work was to verify if there is variability in the dry matter accumulation rate of grains of the carioca-type common bean, as well as to identify the success of selection for this trait and the best time for harvest. Sixteen lines with carioca-type grains were evaluated in three sowing seasons through samples of five plants obtained at regular intervals. A quadratic equation was used to estimate the number of days to obtain the maximum dry matter in the grains. A low variability was observed among the lines, discouraging selection for this trait. The ideal moment for harvesting is when 100% of the grains present the typical stripes of carioca common bean, which may vary among and within pods of the same plant. If the harvest is carried out before complete physiological maturation is reached, the dry matter in the grains decreases, on average, 2.75% per day.

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来源期刊

Pesquisa Agropecuaria Brasileira 农林科学-农业综合

CiteScore

1.20

自引率

0.00%

发文量

审稿时长

9-18 weeks

期刊介绍： Pesquisa Agropecuária Brasileira – PAB – is issued monthly by Empresa Brasileira de Pesquisa Agropecuária – EMBRAPA, affiliated to Ministry of Agriculture, Livestock and Food Supply. PAB publishes original scientific-technological articles on Plant Physiology, Plant Pathology, Crop Science, Genetics, Soil Science, Food Technology and Animal Science. Its abbreviated title is Pesq. agropec. bras., and it should be used in bibliographies, footnotes, references and bibliographic strips.