作物学报2009，Vol.35Issue(11)：2127-2132,6.DOI:10.3724/SP.J.1006.2009.02127
烯效唑浸种对谷子植株生长发育的效应
Effect of Seed Soaking with Uniconazole on Growth and Development of Foxtail Millet Plant
摘要
Abstract
The objective of this study was to investigate the influence and regulation effect of seed soaking with different uni-conazole concentrations (15, 30, 60, and 120 mg L~(-1)) on the growth of roots and relation between roots and shoots in foxtail millet cultivar Jingu 21 cultured in pot and soil column on the experimental farm of Shanxi Agricultural University. The main results were as follows: (1) Uniconazole treatment inhibited the growth of shoots and promoted the growth of roots simultaneously. The number, activity, dry weight and total length of roots increased obviously, so did the stern thickness and tillers, but the plant height decreased. (2) Uniconazole treatment decreased the leaf area at seedling stage, but promoted its leaf growth at booting stage. (3) Uniconazole treatment adjusted the senescent process of plant through prolonging the declining phase of root activity, improving the activities of SOD and POD, and reducing malondialdehyde (MDA) accumulation in root and flag leaf after anthesis to some extent. Through treating seed in 30 mg L-1 uniconazole, the activities roots in lower layer increased 34.95%, 43.64%, and 44.74% respectively at 10, 20, and 30 days after anthesis compared with control. (4) Uniconazole treatment increased the ears per pot, 1000-grain weight, and the yield obviously. In a conclusion, the seed soaking in unieonazole solution of 15-120 mg L~(-1) concen-trations could increase the foxtail millet yield obviously, and the treatment of 30 rag L~(-1) uniconazole had the best effect under the condition of this study.关键词
谷子/浸种/烯效唑/根系/产量Key words
Foxtail millet/Seed soaking/Uniconazole/Root system/Yield分类
农业科技引用本文复制引用
张永清,裴红宾,刘良全,王璐,苗果园..烯效唑浸种对谷子植株生长发育的效应[J].作物学报,2009,35(11):2127-2132,6.基金项目
本研究由国家自然科学基金项目(30871483)和山西省自然科学基金项目(2006011086)资助. （30871483）
