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《Fujian Journal of Agricultural Sciences》 2010-01
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Photo-thermal characteristics of four rice varieties hybridized from Minhui 3301

CHENG Xue-hua1,2,LI Xiao-ping1,CHEN Jian-min3,YOU Zhi-ming4,REN Zhou-di2,JIANG Zhao-wei1(1.Rice Research Institute,Fujian Academy of Agricultural Sciences,Fuzhou,Fujian 350019,China;2.Fujian Minfeng Scientific Seed Company Ltd.,Fuzhou,Fujian 350003,China;3.Institute of Biotechnology,Fujian Academy of Agricultural Sciences,Fuzhou,Fujian 350003,China;4.Tea Research Institute,Fujian Academy of Agricultural Sciences,Fu'an,Fujian 355000,China)  
Photo-thermal characteristics of 4 hybrid rice were determined by comparing the days from sowing to heading under different temperatures and day light.The results indicated that IIyou 3301,Teyou 3301,Minyou 3301 and Tianyou 3301,the four rice varieties hybridized from Minhui 3301,had a weak temperature susceptibility(Grade 1-2),a medium photosensitivity(Grade 4) and a long basic vegetative period(Grade 9).Among them,IIyou 3301 and Teyou3301 had slightly longer basic vegetative period and slightly weaker photosensitivity,and Minyou 3301 and Tianyou 3301 had slightly shorter basic vegetative period and slightly stronger photosensitivity than the others.IIyou 3301,as compared with Teyou 3301,and Minyou 3301,as compared with Tianyou 3301,had slightly stronger susceptibility and photosensitivity.When four hybrid rice varieties were planted in a safe growth season in Fujian,except for double cropping late rice cultivation in Southern Fujian,the day length during photosensitive period was 13-13.8 h.The natural day length did not lead to a significant early or late heading,and temperature was a major ecological factor during the growth period.When the average temperature increased by 1℃,the time from sowing to spike was shortened by 4.6-5.3 d,from sowing to heading shortened by 6.1-7.1 d,and the entire growing season shortened by 8.7-9.7d.
【Fund】: 福建省科技计划重点项目(2007N1005 2005N032);; 国家科技支撑计划粮食丰产工程项目子课题(2006BAD02A13-3-6)
【CateGory Index】: S511
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【Citations】
Chinese Journal Full-text Database 2 Hits
1 YOU Zhi-ming1,3,JIANG Zhao-wei2,CHENG Xue-hua1,LI Xiao-ping2,HUANG Jing-can1(1.Fujian Minfeng Scientific Seed Company Limited,Fuzhou,Fujian 350003,China;2.Rice Research Institute,Fujian Academy of Agricultural Sciences,Fuzhou,Fujian 350019,China;3.Tea Research Institute,Fujian Academy of Agricultural Sciences,Fu'an,Fujian 355000,China);High-yield conditions and climatic/ecological adaptability of hybrid-rice Ⅱ you131[J];Fujian Journal of Agricultural Sciences;2008-03
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1 WANG Ping1,WEI Li2,DU Xiaoling2,ZHANG Wen3,HUANG Yao3,SUN Wenjuan3,LIU Wenying2 (1 Nanjing Agricultural University,Nanjing 210095,China;2 Jiangxi Meteorological Bureau,Nanchang 330046,China;3 Institute of Atmospheric Physics,CAS,Beijing 100029,China);Simulating Changes of Methane emission from Rice Paddies of China,1990~2000[J];Geo-Information Science;2008-05
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