Rice quality variation was analyzed with two midseason rice combinations at different ecological sites, basic fertility of soil and nitrogen application levels in 2009. The results indicated that the genotype was the most important factor followed by the ecological conditions, the basic fertility of soil and the nitrogen application level. The interaction between the genotype and the experiment site had a significant or highly significant effect on the amylose content, the gel consistency, the percentage of head milled rice, the percentage of chalky rice and the chalkiness. The gel consistency was significantly affected by the interaction between the genotype and the nitrogen application level, and the interaction between the experimental site and the nitrogen application level had a significant effect on the percentage of head milled rice. Suitable environment conditions such as high altitude, low longitude,high available N, high available K in soil for Ⅱ you 7, and high altitude, high available N, low organic fertilizer, low total P in soil for Yuxiangyou 203 contributed to improve rice quality. The predict models were established respectively between the amylose, the gel consistency, the percentage of head milled rice, the chalkiness, the ratio length to width and the geographical position, the basic fertility of soil, the nitrogen application level for Ⅱ you 7 and Yuxiangyou 203.
XU Fuxian, XIONG Hong, ZHANG Lin, GUO Xiaoyi, ZHU Yongchuan, ZHOU Xingbin, LIU Mao
. Effect Factor and Predict Model of Rice Quality Variation for MidSeason Hybrid Rice at Different Ecological Sites and Nitrogen Application Levels[J]. Chinese Journal OF Rice Science, 2012
, 26(4)
: 438
-444
.
DOI: 10.3969/j.issn.10017216.2012.04.008
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