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| 控蘖剂对超级杂交早稻金优458生长发育及产量形成的影响 | |
| 引用本文： | 钱银飞,邱才飞,邵彩虹,陈先茂,谢江,邓国强,彭春瑞,任天志.控蘖剂对超级杂交早稻金优458生长发育及产量形成的影响[J].杂交水稻,2011,26(3). |
| 作者姓名： | 钱银飞 邱才飞 邵彩虹 陈先茂 谢江 邓国强 彭春瑞 任天志 |
| 作者单位： | 1. 江西省农业科学院,土壤肥料与资源环境研究所,江西,南昌,330200;中国农业科学院,农业资源与农业区划研究所,北京,100081 2. 江西省农业科学院,土壤肥料与资源环境研究所,江西,南昌,330200 3. 中国农业科学院,农业资源与农业区划研究所,北京,100081 |
| 基金项目： | 国家粮食丰产科技工程，国家农业科技支撑计划，江西省农科院博士启动资金，江西省学科带头人计划，中国农科院博士后启动资金 |
| 摘 要： | 研究了控蘖剂对超级杂交早稻金优458生长发育及产量形成的影响.结果表明:喷施控蘖剂能减少无效和低效分蘖的发生,增加高峰苗期分蘖构成中高效分蘖(4叶及以上分蘖)所占比重;喷施柠蘖剂处理的穗长、穗粒数、穗着粒密度、二次枝粳数及着生其上的二次颖花数和结实率均显著高于未喷施控蘖刺的对照;同时喷施控蘖刑能增加株高、中后期群体生物量和叶面积指数,提高孕穗期上3叶叶温和群体透光性,增加叶片SPAD值,从而增强光合作用能力,但也表现出稻株节间长度增加,茎秆粗度减小等特点.喷施控蘖剂处理最终表现为茎蘖成穗率、有效穗数、穗粒数、结实率和千粒重协调提高而增加产量. |
| 关 键 词： | 控蘖剂 超级杂交早稻 金优458 生长发育 产量 |
Effects of Tiller-inhibitor on Growth and Yield Formation of Early Super Hybrid Rice Jinyou 458 |
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| QIAN Yin-fei,QIU Cai-fei,SHAO Cai-hong,CHEN Xian-mao,XIE Jiang,DENG Guo-qiang,PENG Chun-rui,REN Tian-zhi.Effects of Tiller-inhibitor on Growth and Yield Formation of Early Super Hybrid Rice Jinyou 458[J].Hybrid Rice,2011,26(3). | |
| Authors: | QIAN Yin-fei QIU Cai-fei SHAO Cai-hong CHEN Xian-mao XIE Jiang DENG Guo-qiang PENG Chun-rui REN Tian-zhi |
| Institution: | QIAN Yin-fei1,2,QIU Cai-fei1,SHAO Cai-hong1,CHEN Xianmao1,XIE Jiang1,DENG Guo-qiang1,PENG Chun-rui1,REN Tian-z hi2,(1.Soil and Fertilizer & Resources and Environmental Institute,Jian gxi Academy of Agricultural Sciences,Nanchang,Jiangxi 330200,China,2.Inst itute of Agricultural Resources and Regional Planning,Chinese Academy of Agri cultural Sciences,Beijing 100081,China) |
| Abstract: | The effects of the tiller-inhibitor(TI) on th e growth and yield formation of the early super hybrid rice Jinyou 458 were stud ied.Compared with the check(no TI sprayed),the TI treatment(1.5 kg/hm2 of TI sprayed at the SN-n stage or critical leaf stage of effective tillers; N=No.of leaves on main culm,n=No.of elongated internodes) reduced invalid an d smaller tillers resulting in a marked increase of the proportion of the big ef fective tillers with 4 or more leaves at the maximal tiller stage,increased the... |
| Keywords: | tiller-inhibitor early super hybrid rice Jinyou 45 8 growth yield |
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