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《Journal of Jilin Agricultural University》 2004-05
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Correlation Analysis of Yield and Quality of Main Rice Varieties in Jilin Province

WANG Cheng-ai~(1,2), ZHANG Wen-xiang~2, KOU Hong-ping~3, WANG Bo-lun~1, ZHAO Lei~2, ZHAO Xiu-zhe~2, GAO Lian-wen~2, WANG Feng-ling(1.College of Agronomy, Shenyang Agricultural University, Shenyang 110161,China; 2. Tonghua Academy of Agricultural Sciences, Meihekou 135007, China; 3. College of Agronomy, Jilin Agricultural University, Changchun 130118, China; 4. Science and Technology Center of Fuyu County, Fuyu 131200, China) )  
12 rice varieties of high quality and yield were used in this experiment to observe the relationship between yield and quality. The results showed that there was a negative correlation between quality and yield of rice . Although yield increase could advance milled quality, rice exterior, nutrient quality and sapor declined. The increase of any yield component resulted in the increase of chalky kernel percentage, and chalkiness and amylose content and the decrease of rice quality. There was a significant correlation among panicle length, first branch of panicle of main stem, biological yield and gel consistency. If full-grain percentage, 1 000-grain weight, second branch of main stem and economical coefficient were higher, protein content was also higher. If panicles, biological yield, straw weight, first branch of main stem, grains density of panicle increased, sapor improved. In a conclusion, heightened panicles, length of kernel and declined grains density of panicle can increase quality.
【Fund】: 国家"863"计划资助项目(2001AA241015);; 辽宁省自然科学基金资助项目(99101002)
【CateGory Index】: S511.032
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