摘要
采用5种保墒灌溉栽培方式,以传统耕作栽培方式为对照,在小麦灌浆期测定旗叶叶绿素含量、MDA含量、SOD含量、水分利用效率等值。结果表明:不同保墒灌溉栽培方式对冬小麦均有增产作用,平均增产13.46%,其中穗长平均增加7.15%,不孕小穗数平均降低21.78%,结实小穗平均增加11.42%,穗粒数平均增加10.82%,千粒重平均增加11.05%。保墒灌溉栽培方式的冬小麦灌浆期旗叶叶绿素含量降低减缓,MDA含量降低,SOD含量增高,水分利用效率平均提高24.03%。以免耕留茬方式增产幅度最大,水分利用效率最高。
The experiment in the impact of the cultivations of moisture eonservatioinal, irrigation on winter wheat yield and physiological characteristics in the channel irrigation area of Sbannxi province was conducted. The experimental results showed that the average water use efficiency of the moisntre conservational tillage treatments in winter wheat cultivations was 24.03% higher than traditional cultivation way, and the moisture conservational tillage can improve the winter wheat＇ s physiological characteristics and delay the decrease of chlorophyll content in the flag leaf. The MDA eontent was decreased and the SOD content was increased（significance level）. The spike numbers was increased by 11.42% ; 1 000-grain weight, by 11.05% and the economic out- put, by 13.46% higher than that of traditional cultivation way. The moisture conservational tillage would be cultivation technique of stable yield and high yield of wheat in irrigation area.
出处
《安徽农业科学》
CAS
北大核心
2006年第7期1405-1406,1408,共3页
Journal of Anhui Agricultural Sciences
基金
国家高技术研究发展(863计划)项目(2002AA2Z4211
2004AA2Z4140)资助
关键词
保墒灌溉
冬小麦
生理特性
产量
渠灌区
Moisture conservational irrigation
Winter wheat
Physiology characteristic
Yield
Channel irrigation area
