摘要
以2个节水抗旱稻品种(‘旱优73’‘WDR129’)和2个旱敏感水稻品种(‘H优518’‘扬粳4038’)为材料,设置5个灌溉梯度处理进行盆栽试验,研究不同灌溉量对节水抗旱稻产量及水分利用效率的影响。结果表明:灌溉量为80%(27.42L株)时,‘旱优73’的产量降低不显著,‘H优518’的产量降低了25.5%,差异显著;灌溉量为60%(20.81L株)时,‘WDR129’的产量无显著变化,而‘扬粳4038’的产量降低了16.87%,差异显著。综合产量和水分利用效率分析,节水抗旱稻‘旱优73’在80%灌溉量时,水分利用效率显著增加,产量并未显著降低;‘WDR129’在灌溉量为60%时,水分利用效率显著增加,产量并未显著降低。可见,‘旱优73’的适合灌溉量为27.42L株,‘WDR129’的适宜灌溉量为20.81L株。
Five irrigation gradient treatments were set up for pot experiment to study the effects of different irrigation amount on the yield and water use efficiency of water-saving and drought-resistant rice varieties(‘Hanyou 73’,‘WDR129’)and drought-sensitive rice varieties(‘Hyou 518’,‘Yangjing 4038’).The results showed that when the irrigation amount was 80%(27.42 L plant),the yield of‘Hanyou 73’was not significantly decreased,while that of‘Hyou 518’significantly decreased by 25.5%;when the irrigation amount was 60%(20.81 L plant),the yield of‘WDR129’had no significant change,while that of‘Yangjing 4038’significantly decreased by 16.87%.Comprehensive analysis of yield and water use efficiency showed that the water use efficiency of water-saving and drought-resistant rice‘Hanyou 73’increased significantly at 80%irrigation amount,but the yield did not decrease significantly;while the water use efficiency of‘WDR129’increased significantly at 60%irrigation amount,but the yield did not decrease significantly.It could be seen that the suitable irrigation amount of‘Hanyou 73’was 27.42 L plant and that of‘WDR129’was 20.81 L plant.
作者
毕俊国
谭金松
张安宁
王飞名
刘毅
余新桥
刘国兰
罗利军
BI Jun-guo;TAN Jin-song;ZHANG An-ning;WANG Fei-ming;LIU Yi;YU Xin-qiao;LIU Guo-lan;LUO Li-jun(Shanghai Agrobiological Gene Center,Shanghai 201106,China)
出处
《上海农业学报》
2019年第3期7-10,共4页
Acta Agriculturae Shanghai
基金
国家重点研发计划(2017YFD0300103)
上海市水稻产业技术体系建设项目[沪农科产字(2018)第3号]
国家青年自然科学基金项目(31501270)
关键词
灌溉量
节水抗旱稻
产量
水分利用效率
Irrigation amount
Water-saving and drought-resistance rice
Yield
Water use efficiency
