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阴影种植的大豆苗的光合作用适应到高光环境

Yahan Su^1,2, Huan Yang^1,2, Yushan Wu^1,2

¹College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China.

Plants (Basel, Switzerland)

|June 28, 2023

概括

耐阴影的大豆品种更好地适应变化的光线条件. 对阴影不耐受的品种表现出光抑制,而耐受品种保持了高的光合作用率和生物量.

科学领域:

农业科学农业科学
植物生理学植物生理学
农作物科学农作物科学

背景情况:

在中继交叉作物中种植的大豆经验从阴影转移到完全阳光.
适应不断变化的光环境对于大豆生长和产量至关重要.
对于大豆在杂交作物中对光线交替的光合作用反应尚不清楚.

研究的目的:

为了比较耐阴 (Gongxuan1) 和不耐阴 (C103) 的大豆品种的光合作用适应.
研究光环境变化对大豆光合作用和形态学的影响.

主要方法:

温室研究比较大豆基因型在高光 (HL) 和低光 (LL) 条件下.
将LL植物转移到HL (LL-HL),以模拟交叉的光变化.
测量包括形态特征,叶绿素含量,气体交换和叶绿素光.

主要成果:

阴影不耐受的C103在变光后表现出光抑制和净光合作用速率 (P) 的不完全恢复.
耐阴影的Gongxuan1在转移后显示了增加的P和与HL条件相比的性能.
10天后,Gongxuan1的生物质,叶面积和茎直径明显高于C103.

结论:

与C103.3相比,Gongxuan1在波动的光线条件下表现出更好的适应性.
耐阴影的大豆品种更适合用于需要光适应的交叉作物系统.
选择耐阴影的大豆品种可以在继电间作物系统中优化产量.

关键词:

适应和适应的时间交叉作物交叉作物交叉作物叶子叶子叶子现象型现象型是一种现象型.豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆

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