Zhao Liying,Deng Xiping.Product Effect of Limited Water Supply Before and After Flowering of Spring Wheat[J].Research of Soil and Water Conservation,1999,6(01):99-102,116.
春小麦开花前后有限供水的生产效应
- Title:
- Product Effect of Limited Water Supply Before and After Flowering of Spring Wheat
- Keywords:
- spring wheat; limited water supply; yield; water consumption
- 摘要:
- 在防雨棚内的盆栽实验条件下,研究了4种梯度的10种水分组合对红芒麦和宁春10号产量及耗水量等的影响.结果表明,试验期间充分灌水、轻度、中度、重度干旱处理,随着干旱程度的加剧,株高、干物质积累、产量、耗水量都逐渐减少;红芒麦灌浆期不同程度的干旱处理,均有利于产量的形成,促进物质运输,提高了千粒重,同时减少了水分消耗,提高了WUE;孕穗期干旱处理后,灌浆期复水,会造成减产,和灌浆期相比,孕穗期是水分敏感的时期,而灌浆期对水分亏缺不敏感.两种小麦相比较,宁春10号耗水量大、产量低、抗旱性较强,但适应性较差.
- Abstract:
- The effect of 10 soil water treatments on water consumption and yield in spring wheat had been studied in pot culture with rainproof shelter.The results showed that crop height,ear length,yield,water consumption and dry matter accumulation would be reduced with the increase of water stress under 4 treatments(water supply,mild,medium and severe drought) in experiment period.Different drought in Hongmang wheat under grain filling stage is favorable to form yield,accelerate matter transportation,enhance kilo grain weight,reduce water consumption and increase WUE; yield were reduced when water was supplied in grain filling after drought in booting stage.Booting stage is sensitive stage to water deficient.Compared with Hongmang wheat,Ningchun 10 is much water consumption,lower yield,stronger drought resistance,but weaker adaptability.
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备注/Memo
收稿日期:1999-1-10。
基金项目:国家攀登计划项目