产量的表型可塑性和与产量相关的特征有助于在双倍的哈普洛伊德种群中对小麦产量的贡献
Md Atik Us Saieed1,2, Yun Zhao1, Kefei Chen3
1Food Futures Institute, School of Health, Education & Environment, Murdoch University, Perth, WA 6150, Australia.
Plants (Basel, Switzerland)
|January 11, 2024
概括
面包小麦 (Triticum aestivum) 的产量特征显示出不同的表型可塑性. 每个尖端的尖端大部分是塑料,而谷物蛋白质含量最少. 种子的长度和数量是稳定的产量在不断变化的气候的关键.
科学领域:
- 农业科学 农业科学
- 植物育种 植物育种
- 遗传学 是一个遗传学.
背景情况:
- 现型可塑性允许基因型适应不同的环境.
- 了解特征可塑性对于作物改进至关重要,特别是在气候变化下.
- 面包小麦 (Triticum aestivum) 的产量特征需要对其塑性反应进行研究.
研究的目的:
- 量化面包小麦产量相关特征的表型可塑性.
- 为了确定最多和最少的塑料特征,并建立一个层次结构.
- 评估特征可塑性和产量稳定性之间的关系.
主要方法:
- 采用了225条来自两种小麦品种 (cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv.cv. 威斯托尼亚和CV. 卡乌兹 (Kauz) 的意思是说.
- 在西澳大利亚进行了两次实地试验,以评估跨环境的特征性能.
- 使用对生态条件和反应规范斜率的反应性来量化可塑性.
主要成果:
- 每个尖端的尖端呈现出最高的可塑性 (1.62),而谷物蛋白质含量显示出最低的 (0.79).
- 塑性等级是:尖端/尖端 > 千粒粒重量 > 种子数 > 种子长度 > 谷物产量 > 谷物蛋白质含量.
- 增加的产量可塑性与更高的最大产量相关;种子数量和谷物蛋白质可塑性影响了产量可塑性.
结论:
- 种子长度和种子数量被确定为培育稳定的小麦产量的关键目标.
- 种子数量和长度的塑料反应因受精水平而异.
- 研究结果为开发适应气候变化的小麦品种提供了洞察力.
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