Effect of long-term storage on viability of buffel grass (Cenchrus ciliaris L.) seeds

IF 1.1 4区 农林科学 Q3 AGRONOMY Journal of Seed Science Pub Date : 2022-01-01 DOI:10.1590/2317-1545v44259954
Jamille Cardeal da Silva, J. J. Silva, S. C. D. Silva, Raquel Araujo Gomes, B. F. Dantas
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引用次数: 1

Abstract

Abstract: Prolonged storage of seeds may lead to decreases in seed quality, negatively affecting germination and vigor and preventing the obtaining of a promising stand. Seed quality is a critical factor, and the performance of the lot can be altered by vigor, dormancy and, mainly, by the time and conditions in which the seeds were stored. In the experiment, the physiological quality of seeds 14 genotypes of buffel grass (Cenchrus ciliaris L.) genotypes stored for a period of thirteen years in cold conditions was evaluated. The seeds were subjected to germination induction treatment with potassium nitrate (KNO3) and evaluated to identify seeds with presence and absence of embryos. The seed storage period affected their germination capacity and the use of KNO3 did not increase seed germination. A low number of full seeds was found for genotype 613 (12%). The relative germination percentages did not underestimate the buffel grass seed germination potential, as it is usually calculated, providing an improved distinction between the evaluated genotypes. The use of KNO3 increased the seedling root and shoot weights of some genotypes, as well as the dry matter weight of seedlings, an important characteristic for forage production. The prolonged storage affects the physiological quality of buffel grass seeds. The production of seeds without embryo is a problem found for this species, which affects the final quality of the seed lots produced.
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长时间贮藏对羊草种子活力的影响
摘要/ Abstract摘要:种子贮藏时间过长会导致种子品质下降,影响种子萌发和活力,不利于获得良种。种子质量是一个关键因素,而种子的表现可能受到活力、休眠,主要是种子储存的时间和条件的影响。本试验对14个不同基因型的黄颡鱼草(Cenchrus ciliaris L.)种子在低温条件下保存13年的生理品质进行了评价。用硝酸钾(KNO3)对种子进行萌发诱导处理,鉴定种子有无胚。种子贮藏期对种子发芽率有影响,施用KNO3对种子发芽率无促进作用。613基因型的完整种子数量较少(12%)。相对发芽率并没有低估牛肉草种子的萌发潜力,因为它通常是计算出来的,提供了评估基因型之间的改进区分。施用KNO3增加了部分基因型的幼苗根、茎重,以及幼苗干物质重,这是牧草生产的重要特征。长时间贮藏会影响牛皮草种子的生理品质。无胚种子的生产是该物种的一个问题,这影响了所生产种子批次的最终质量。
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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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