Growth and dry matter partition wheat plants in response to seed vigor and water restriction

IF 1.1 4区 农林科学 Q3 AGRONOMY Journal of Seed Science Pub Date : 2021-08-04 DOI:10.1590/2317-1545v43239171
F. Koch, J. M. Rolim, E. G. Martinazzo, T. Pedó, F. A. Villela, T. Z. Aumonde
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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.
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小麦植株生长和干物质分配对种子活力和水分限制的响应
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。
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来源期刊
Journal of Seed Science
Journal of Seed Science Agricultural and Biological Sciences-Agronomy and Crop Science
CiteScore
2.00
自引率
30.00%
发文量
28
审稿时长
12 weeks
期刊介绍: From 2017 the Journal of Seed Science (JSS) will circulate online version only. Original scientific studies and communications, not yet published or submitted to another journal for publication and written in Portuguese or English, will be accepted for publication. For manuscripts submitted in English, the authors should provide an adequated version. The SCIENTIFIC COMMUNICATION is a category of scientific manuscript which describes a technique, an equipment, new species or observations and surveys of limited results. It has the same scientific rigor as the “Scientific Articles” and the same value as a publication. The classification of a manuscript as a SCIENTIFIC COMMUNICATION is based on its content and scientific merit but it can be a preliminary study, simple and not definitive on a certain subject, with publication justified by its uniqueness and contribution to the area. The Editorial Board of the JSS may invite leading authors of recognized reputation to compose specific Review Articles covering topics of their specialization that will convey to the scientific community the state-of-the-art knowledge related to the specific theme.
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