期刊论文

Yang, S.

中文

林业科学

1001-7488

2018

54

6

33-43

10.11707/j.1001-7488.20180605

河南省林科院基本科研业务费项目（2016JB02-001） 河南省基础与前沿技术研究计划项目（132300413223）.

本校为第一机构

【目的】对美洲黑杨2025及其2个芽变红叶品种‘中红杨'和‘全红杨'干旱胁迫的生理响应进行研究,比较3个品种的抗旱能力,为杨树彩叶新品种的适应性推广提供理论依据。【方法】以美洲黑杨2025及其2个芽变红叶品种‘全红杨'、‘中红杨'嫁接苗为试验材料,采用随机区组设计,盆栽模拟干旱环境,以正常浇水条件为对照,研究不同干旱胁迫处理时间( 7、14、21、28天和复水处理7天)下3个杨树品种植株表型、光合特性的响应以及对叶片叶绿素、花色素苷等色素含量的影响。【结果】随干旱胁迫的加重,3个杨树品种叶片色素含量和光合生理指标均极显著下降( P < 0.01) ;胁迫后期,净光合速率和水分利用效率相继出现负...

Objective: In this paper, we studied physiological responses of poplar 2025 and its two bud mutation colored-leaf varieties to continuous drought stress and compared drought resistance of the three varieties, to provide a theoretical basis for the promotion of new varieties of color-leaf poplar. Method: The graft seedlings of 2025 poplar and its two bud mutation colored-leaf varieties (P.deltoides cv. Zhonghong, P.deltoides cv. Quanhong) were used as experimental materials. A randomized block design was used to simulate drought environment in a...