休眠的碳水化合物储备可以增强花生树的春季结耐受性:受控环境观察
Amandeep Kaur1, Lu Zhang1, Niels O Maness1
1Department of Horticulture and Landscape Architecture, Oklahoma State University, Stillwater, OK, United States.
Frontiers in plant science
|June 6, 2024
概括
马拉麦克/科尔比 (MC) 坚果种子/根茎组合对春季伤的耐受性更强. 这与它们高效地使用非结构性碳水化合物有关,这表明子树对结耐受性的关键机制.
科学领域:
- 园艺园艺 园艺园艺
- 植物生理学 植物生理学
- 农业科学 农业科学
背景情况:
- 春季的结对果 (Carya illinoensis) 产量构成重大威胁,导致花受伤,降低产量.
- 了解结耐受度的种子/根茎变异性对于减轻花生种植的经济损失至关重要.
研究的目的:
- 为了评估低温对不同生长阶段的坚果芽和花的影响.
- 为了比较三个不同的子/根茎组合的结耐受性:Pownee/Peruque (PP),Kanza/Giles (KG) 和Maramec/Colby (MC).
主要方法:
- 来自PP,KG和MC组合的分支在三个生长阶段被暴露在受控的结温度 (-2,0,2,4°C) 中4小时和8小时.
- 用视觉评估损伤,并使用Anthrone试剂分析树皮和木质树木中的碳水化合物含量 (可溶性糖和粉).
主要成果:
- 在所有测试条件下,Maramec/Colby (MC) 组合对芽,叶子和花朵的视觉损伤最小.
- 与其他组合相比,MC在树皮体和树皮体中显示出明显较低的可溶糖和粉.
- 坎扎/吉尔斯 (KG) 显示了最显著的视力损伤和更高的碳水化合物储量.
结论:
- 马拉梅克/科尔比 (MC) 桃花种子/根茎组合在各种生长阶段表现出对春季结损伤的优越耐受性.
- 增强的MC结耐受性可能归因于其有效利用非结构性碳水化合物 (可溶性糖和粉).
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