摘要
在定西半干旱地区对小麦进行盆栽试验,通过人工控制各生育时期的土壤水分,观察不同时期水分胁迫对旱地与水地不同生态类型的春小麦各主要性状及产量的影响程度,探讨春小麦各生育时期的需水量,及其与本地区供水之间的协调关系。结果表明,在当地干旱条件下,春小麦苗期是对水分需求最敏感时期,对春小麦一生的影响也最大。
Pot experiments were conducted in spring wheat in semiarid area in Dingxi Prefecture. The effects of water stresses in different growing stages upon the principlal traits and yields of spring wheat of various ecological types in rainfed and irrigated lands were observed and determined through artificially—controolled soil moisture in each growth and development stage. The coordinative relationship between water requirments by spring wheat in different growth and development stages and local water supplies was discussed in this paper. The results showed that in the case of droughts, the most sensitive stage was the seedling stage, which may have the greatest effect upon the whole growth of spring wheat.
出处
《干旱地区农业研究》
CSCD
北大核心
1989年第3期66-77,共12页
Agricultural Research in the Arid Areas
基金
国家自科学基金
