| 沿淮地区夏玉米喷施金得乐的安全叶龄研究 |
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| 引用本文： | 王世济,阮龙,王俊,武文明,陈洪俭.沿淮地区夏玉米喷施金得乐的安全叶龄研究[J].中国农学通报,2012,28(30):28-31. |
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| 作者姓名： | 王世济 阮龙 王俊 武文明 陈洪俭 |
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| 作者单位： | 安徽省农业科学院烟草研究所/玉米研究中心,合肥,230031 |
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| 基金项目： | 国家科技支撑计划“沿淮中低产田地力提升和作物丰产增效技术集成与示范”(2009BADA6B04) |
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| 摘 要： | 为了明确沿淮地区夏玉米喷施化控剂金得乐的最佳叶龄时期，采用在6叶龄至抽雄期内每公顷喷施450 mL金得乐兑225 kg水的方法，研究喷施化控剂金得乐对玉米的株高、穗位高、棒三叶、产量、穗行数、行粒数和千粒重的影响。结果表明：6叶龄至抽雄期内喷施化控剂金得乐，株高、穗位高、棒三叶、产量、穗行数、行粒数和千粒重随叶龄的增加呈先下降后上升的变化趋势，株高于14叶龄和16叶龄降至最低；穗位高于14叶龄降至最低；棒三叶在12叶龄缩至最短；产量在12叶龄降至最低；穗行数在9叶龄减少到最少；行粒数在12叶龄减少到最少；千粒重在12叶龄降至最低。10~18叶龄间喷金得乐显著降低玉米的株高，8~16叶龄间喷金得乐显著降低玉米的穗位高。6叶龄、7叶龄、8叶龄、16叶龄、18叶龄和抽雄后喷施金得乐处理的玉米产量和对照处理无显著差异。玉米6叶龄、7叶龄、8叶龄是喷施金得乐的安全叶龄时期。8叶龄是喷施金得乐最佳叶龄时期。
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| 关 键 词： | 研发趋势 研发趋势 |
| 收稿时间： | 2012/2/25 0:00:00 |
| 修稿时间： | 2012/5/18 0:00:00 |
The Safety Leaf Age of Spraying Chemical Control Agent Jindele in Summer Maize Along Yanhuai River |
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| Wang Shiji
,
Ruan Long
,
Wang Jun
,
Wu Wenming
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Chen Hongjian.The Safety Leaf Age of Spraying Chemical Control Agent Jindele in Summer Maize Along Yanhuai River[J].Chinese Agricultural Science Bulletin,2012,28(30):28-31. |
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| Authors: | Wang Shiji Ruan Long Wang Jun Wu Wenming Chen Hongjian |
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| Institution: | (Tobacco Research Institute /Corn Research Center,Anhui Academy of Agricultural Sciences,Hefei 230031) |
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| Abstract: | Field experiments were carried out in 2010 and 2011 to investigate the best leaf age when to spray chemical control agent ＇ Jindele＇ of summer maize along Huaihe River. In this study, spraying chemical control agent ＇Jindele＇ 450 mL/hm2 plus 225 kg of water during the period of 6 leaf age to tasseling stage were examined to investigate the effects of spraying control agent ＇Jindele＇ on plant height, ear height, three-ear-leaves, yield, ear row number, grain number per row and 1000-grain weight. The results showed that, spraying chemical control agent ＇Jindele＇ during the period of 6 leaf age to tasseling stage, with the increase of leaf age, the plant height, ear height, three-ear-leaves, yield, ear row number, grain number per row and 1000-grain weight decreased first and then increased. Plant height decreased to minimum at 14 and 16 leaf age, ear height reached minimum at 14 leaf age, three-ear leaves and grain yield reached minimum at 12 leaf age, ear row number minimized at 9 leaf age, grain number per row and 1000-grain weight minimized at 12 leaf age. Spraying chemical control agent ＇Jindele＇ during 10 to 18 leaf age significantly decreased plant height, and ear height decreased significantly during 8 to 16 leaf age. There was no significant difference between spraying chemical control agent ＇Jindele＇ treatment and control of grain yield when to spray chemical control agent at 6, 7, 8, 16, 18 leaf age and post tasseling stage. The results indicated that, 6 to 8 leaf age were the safety leaf age to spray chemical control agent ＇Jindele＇, and 8 leaf age was the best leaf age to spray chemical control agent ＇ Jindele＇. |
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| Keywords: | ＇Jindele＇ leaf age summer maize grain yield agronomic traits Huaihe River |
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