Seed treatment with 24-epibrassinolide improves wheat germination under salinity stress

IF 1.6 Q2 AGRICULTURE, MULTIDISCIPLINARY

Asian Journal of Agriculture and Biology Pub Date : 2023-01-01 DOI:10.35495/ajab.2022.076

Otie Victoria, Udo Idorenyin, Matsuura Asana, Liu Jia, Liang Shuoshuo, Shao Yang, Itam Michael Okoi, An Ping, E. A. Egrinya

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引用次数: 0

Abstract

Salt stress is a key ecological challenge to wheat establishment at the early stage of germination, especially in drylands. A germination experiment was conducted to determine whether an exogenous seed treatment with 24-epibrassinolide could mitigate salinity stress effects on wheat germination. Seeds of the Sudanese wheat cv. Imam were treated with 24-epibrassinolide (BR 1 ) or without (BR 0 ) at eleven concentrations of sodium chloride (NaCl) (0.00, 1.56, 3.13, 4.69, 6.25, 7.81, 9.38, 10.94, 12.50, 14.06 and 15.63 dSm -1 ), in a 2 x 11 factorial experiment arranged into a completely randomized design. Seed germination was progressively delayed with increasing salinity and the daily germination was reduced significantly. The germination average time and relative injury rate increased considerably (p≤0.05) at salt levels of 7.81 dSm -1 or more. The inhibitory effects of salinity on germination were significantly (p≤0.05) reversed by seed treatment with BR 1 . Wheat cv. Imam tolerated salt stress up to 6.25 dSm -1 at BR 0 with respect to velocity of germination, germination rate, final germination rate, germination percentage and germination index, relative to no salt (0.00 dSm -1 ). An early uniform establishment of wheat in saline media could be enhanced by seed treatment with BR.

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24-表油菜素内酯处理能提高盐胁迫下小麦的萌发率

盐胁迫是小麦萌发初期形成的主要生态挑战，特别是在旱地。为研究24-表油菜素内酯外源处理能否缓解盐胁迫对小麦萌发的影响，进行了萌发试验。苏丹小麦的种子。在11种氯化钠浓度(0.00,1.56,3.13,4.69,6.25,7.81,9.38,10.94,12.50,14.06和15.63 dSm -1)下，用24-表油菜素内酯(BR 1)或不加BR 0处理伊玛目，试验采用2 × 11的全随机设计。随着盐度的增加，种子萌发逐渐延迟，日萌发率显著降低。在7.81 dSm -1及以上盐水平下，发芽平均时间和相对伤害率显著增加(p≤0.05)。BR 1处理显著逆转了盐度对种子萌发的抑制作用(p≤0.05)。小麦的简历。相对于无盐(0.00 dSm -1)，在BR = 0条件下，Imam的萌发速度、发芽率、终发芽率、发芽率和发芽指数耐受高达6.25 dSm -1的盐胁迫。BR处理可以促进小麦在盐水培养基中的早期均匀生长。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Asian Journal of Agriculture and Biology AGRICULTURE, MULTIDISCIPLINARY-

CiteScore

2.80

自引率

4.50%

发文量

审稿时长

6 weeks

期刊介绍： Asian Journal of Agriculture and Biology (AJAB) is a peer reviewed, open access, quarterly journal serving as a means for scientific information exchange in international and national fora. The scope encompasses all disciplines of agriculture and biology including animal, plant and environmental sciences. All manuscripts are evaluated for their scientific content and significance by the Editor-in-Chief &/or Managing Editor and at least two independent reviewers. All submitted manuscripts should contain unpublished original research which should not be under consideration for publication elsewhere. In order to avoid unnecessary delay in publication, authors are requested to comply the following guidelines; differing these, your submission will be returned for additional revision.