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作物学报 ›› 2009, Vol. 35 ›› Issue (11): 2127-2132.doi: 10.3724/SP.J.1006.2009.02127

• 研究简报 • 上一篇    下一篇

烯效唑浸种对谷子植株生长发育的效应

张永清1,2,裴红宾1,刘良全1,王璐1,苗果园3,*   

  1. 1山西师范大学生命科学学院，山西临汾041004；2山西师范大学城市与环境科学学院，山西临汾041004；3山西农业大学农学院，山西太谷030801
  • 收稿日期:2009-02-19 修回日期:2009-06-25 出版日期:2009-11-12 网络出版日期:2009-09-10
  • 通讯作者: 苗果园, Tel: 0354-6288373
  • 基金资助:

    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。

Effect of Seed Soaking with Uniconazole on Growth and Development of foxtail Millet Plant

ZHANG Yong-Qing1,2,PEI Hong-Bin1,LIU Liang-Quan1,WANG Lu1,MIAO Guo-Yuan3*   

  1. 1College of Life Science,Shanxi Normal University,Linfen 041004,China;2College of Urban and Environmental Sciences,Shanxi Normal University,Linfen 041004,China;3College of Agriculture,Shanxi Agricultural University,Taigu 030801,China
  • Received:2009-02-19 Revised:2009-06-25 Published:2009-11-12 Published online:2009-09-10
  • Contact: MIAO Guo-Yuan,Tel:0354-6288373

PDF

1534

被引次数

29

摘要：

以晋谷21为试验材料,通过盆栽及根管栽培试验，研究了不同浓度烯效唑(15、30、60和120 mg L-1)浸种处理对谷子地上和地下农艺性状的影响。结果表明，烯效唑浸种对谷子具有明显的控上促下作用，使谷子根系数量、根系活力、根干重、根系总长度及茎粗与分蘖均明显增加，株高明显降低；此外显著降低了前期谷子叶面积，但后期发生逆转，表现出控前促后的效果；还对开花后谷子植株的衰老具有明显的调节作用，可延长根系活力的缓降期，提高衰老期间根系和旗叶中SOD、POD活性，降低根系与旗叶中MDA含量。烯效唑浸种处理可显著增加谷子的成穗数和千粒重，最终显著增加产量，在本试验条件下以30 mg L-1烯效唑浸种效果最佳。

关键词: 谷子, 浸种, 烯效唑, 根系, 产量

Abstract:

The objective of this study was to investigate the influence and regulation effect of seed soaking with different uniconazole concentrations (15, 30, 60 and 120 mg L-1) on the growth of roots and relation between roots and shoots in foxtail millet cultivar Jingu21 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 stem 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 so the yield obviously. In a conclusion , the seed soaking in uniconazole solution of 15-120 mg L-1 concentrations could increase the foxtail millet yield obviously, and the treatment of 30 mg L-1 uniconazole had the best effect under the condition of this study.

Key words: Foxtail millet, Seed soaking, Uniconazole, Root system, Yield


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