河南农业科学2018，Vol.47Issue(4)：21-25,5.DOI:10.15933/j.cnki.1004-3268.2018.04.004
叶面肥和生长调节剂对玉米遮荫胁迫的缓解作用
Mitigative Effects of Growth Regulator and Foliar Fertilizer on Maize under Shading Stress
摘要
Abstract
In order to alleviate the influence of rain and sparse sunlight on summer maize,ensure midsouth summer corn output,maize hybrid Luoyu 336 was used as test materials under the artificial simulation shade,5 kinds of foliar fertilizer and growth regulators were sprayed at 9 leaves stage,and 7 treatments were set,which were natural light (contrast,CK),no spraying on the leaf and shading(T1),spraying rare earth element-pollination qinghua element-resistance comprehensive lure and shading(T2),spraying Shilaideng and shading (T3),spraying Luofengwang 1 + 1 and shading (T4),spraying the universal overweight and shading(T5),spraying Bibang and shading(T6),the influence of foliar fertilizer and growth regulator on maize growth and development under the shade stress was studied.The results showed that under shade stress,compared with CK and T1 treatment,T3,T6 treatments could significantly reduce the plant height and ear height,reduced by 12.7％,9.9％ and 23.1％,26.2％ respectively compared with CK;the chlorophyll SPAD values of T3,T4,T5,T6 treatments were significantly higher than that of T1 treatment,but there were no significant difference with CK and each other;POD activities of T2,T3,T4,T5,T6 treatments were higher than those of CK and T1 treatment,the T3 treatment was the highest,SOD activity was the highest in T3 treatment;the lodging rates of T3,T6 treatments were 0,T5 treatment was 30％,T2,T4 treatments were higher than CK and T1 treatment;yields of T2,T3,T5,T6 treatments increased compared with T1 treatment,which increased by 2.4％,37.0％,24.8％,15.2％ respectively.Therefore,spraying Shilaideng was the best to alleviate the influence of rain and sparse sunlight.关键词
玉米/生长调节剂/遮荫/SOD/PODKey words
Maize/Growth regulators/Shading/SOD/POD分类
农业科技引用本文复制引用
袁刘正,柳家友,王会强,付家锋,张运栋,吴伟华,闫海霞..叶面肥和生长调节剂对玉米遮荫胁迫的缓解作用[J].河南农业科学,2018,47(4):21-25,5.基金项目
国家玉米产业技术体系建设专项基金(nycytx-02) （nycytx-02）
漯河市青年拔尖人才项目基金(lhqnbjrc-02) （lhqnbjrc-02）
