摘要
以玉米自交系郑58和PH6WC为研究材料,在不同时期喷施赤霉素和乙烯利＋油菜素内酯调节株高。结果表明,郑58在17片可见叶期,喷施200 mg/L赤霉素效果最佳,倒1节节间长度提升幅度与对照达显著性差异;PH6WC对赤霉素反应不敏感。郑58在14片可见叶期,喷施100 mg/L乙烯利＋0.1 mg/L油菜素内酯降低株高的效果最佳,倒2节至倒6节节间长度降低幅度均与对照达显著性差异;PH6WC在17片可见叶期,喷施200 mg/L乙烯利＋0.1 mg/L油菜素内酯降低株高效果最佳,倒1节至倒6节节间长度降低幅度均与对照达到显著性差异。不同自交系对化控剂处理的最佳时期和浓度均有差异。
With the corn inbred lines Zheng58 and PH6 WC, three agents from gibberellin or ethrel＋brassinolide were tested to adjust plant height at 11-, 14, and 17-leaf stages. Result showed that the gibberellin at 200 mg/L had the best effect on internode length of Zheng 58 at visible 17-leaf stage among all treatments, while it had nothing effect on PH6WC. In addition, 100 mg/L ethrel ＋ 0.1 mg/L brassinolide had the best effect on decreasing the plant height of Zheng 58 at 14-leaf stage, and the lengths of the last 2-6 internodes was significantly shorten when compared with that of control. The 200 mg/L ethrel ＋ 0.1 mg/L brassinolide had the best effect on the plant height of PH6 WC at 17-leaf stage among the treatments, and the lengths of last 1-6 internodes were significantly decreased compared with that of control. In brief, different corn inbred lines at different growth period have different responses to chemical regulation agents.
作者
何立锋
李敏
李岩
吴承来
张春庆
HE Li-feng;LI Min;LI Yan;WU Cheng-lai;ZHANG Chun-qing(College of Agronomy,Shandong Agricultural University / State Key Laboratory of Crop Biology,Tai＇ an 271000,China)
出处
《玉米科学》
CAS
CSCD
北大核心
2018年第4期99-104,共6页
Journal of Maize Sciences
基金
公益性行业(农业)科技专项(201303005)
山东省现代农业产业玉米技术体系(SDAIT-02-02)
山东省2010年重大技术创新项目
关键词
玉米
自交系
化学调控
株高
Corn
Inbred line
Chemical regulation agent
Plant height
