黑龙江农业科学Issue(4)：16-20,5.DOI:10.11942/j.issn1002-2767.2017.04.0016
吐丝期干旱胁迫对玉米生长及产量的影响
Effects of Drought Stress on Growth and Yield of Maize During Silking Period
摘要
Abstract
In order to promote the drought-resistant cultivation fo maize,taking Xianyu 335 as material,through the field plot experiment,effects of drought stress on growth and yield of maize during silking peirod were studied.Through the determination of soil water content,leaf morphology and physiology,ear traits and yield index,effect of drought stress on growth and yield of maize were analyzed.The results showed that 0~20 cm,20~40 cm and 40~60 cm of soil,water content of different treatments were significantly different(P<0.05),no drought stress (T2)>drought stress last 5 days (T3)>drought stress last 10 days (T4)>drought stress last 15 days (T5)>natural growth (T1).Leaf curl was T1>T5>T4>T3>T2.Leaf stay-green trait,relative water content and SPAD value were T2>T3>T4>T5>T1.Leaf relative water content of T2 was 55.38%,5.31%,24.17% and 37.91% higher than T1,T3,T4 and T5,respectively.SPAD vaule of T2 was 38.70%,9.45%,18.97%和27.10% higher than T1,T3,T4 and T5,respectively.Drought stress had an influence on characters and yield of corn,leading to ear length shorter,bald length longer,ear diameter and grains per row decreased and yield decreased significantly (P<0.05).Yield of T2 was 50.25%,8.94%,15.06% and 28.12% higher than T1,T3,T4 and T5,respectively.关键词
玉米/吐丝期/干旱胁迫/产量Key words
maize/silking period/droughtstress/yield分类
农业科技引用本文复制引用
徐莹莹,刘玉涛,高盼,王宇先,杨慧莹,王俊河,樊景胜..吐丝期干旱胁迫对玉米生长及产量的影响[J].黑龙江农业科学,2017,(4):16-20,5.基金项目
公益性行业(农业)科研专项经费资助项目(201303125-21,201503116-02) （农业）
齐齐哈尔市科技局农业攻关资助项目(NYGG-201409) （NYGG-201409）
国家现代农业技术体系建设资助项 目(CARS-02) （CARS-02）
