不同外源糖对Malus baccata Borkh.生长和营养吸收的影响. 在低温以下的根区温度下
Hui Yong1, Peng Wang1, Zhuangzhi Qin1
1College of Horticulture, Shenyang Agricultural University/Key Laboratory of Fruit Quality Development and Regulation of Liaoning Province, Shenyang 110866, China.
Ying yong sheng tai xue bao = The journal of applied ecology
|September 5, 2024
概括
诸如糖之类的外源糖通过增强光合作用和营养吸收,在寒冷的土壤条件下改善果苗的生长. 与果糖和葡萄糖相比,糖显示出最显著的益处.
科学领域:
- 植物生理学 植物生理学
- 环境压力生物学
- 农业科学 农业科学
背景情况:
- 中国北部的果根在春季面临低温压力.
- 糖是关键的营养素和信号分子,植物在寒冷压力下.
研究的目的:
- 为了研究外源糖 (糖,果糖,葡萄糖) 在低温根区温度下对Malus baccata幼苗的生长和营养吸收的影响.
主要方法:
- 评估了M. baccata幼苗的生长参数,叶子光合作用和光特性以及矿物元素含量 (N, P, K, Ca, Mg).
- 应用了五种治疗方法:控制 (CK),低温 (L) 和低温糖 (LS),果糖 (LF) 或葡萄糖 (LG).
主要成果:
- 低温 (L) 显著降低了生长,光合作用,叶绿素和大多数矿物元素,除了根.
- 与L.相比,外源糖 (LS,LF,LG) 在各种组织中改善了光合作用,生长和矿物质含量 (N,P,K,Ca,Mg).
- 糖 (LS) 与果糖 (LF) 和葡萄糖 (LG) 相比,对生长和营养吸收有更好的影响.
结论:
- 外源糖通过增强光合作用和矿物元素吸收,有效地减轻M. baccata的低温压力.
- 糖是减轻感冒压力的最有效的糖,促进果苗的生长和营养吸收.
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