Analysis of genotypic and environmental effects on rice starch. 1. Apparent amylose content, pasting viscosity, and gel texture
文献类型: 外文期刊
作者: Bao, JS 1 ; Kong, XL 2 ; Xie, JK 2 ; Xu, LJ 2 ;
作者机构: 1.Zhejiang Univ, Coll Agr & Biotechnol, Inst Nucl Agr Sci, Hangzhou 310029, Peoples R China
2.Zhejiang Univ, Coll Agr & Biotechnol, Inst Nucl Agr Sci, Hangzhou 310029, Peoples R China; Jiangxi Acad Agr Sci, Rice Res Inst, Nanchang 330200, Peoples R China; Zhejiang Univ, Inst Agr & Bioenvironm Engn, Hangzhou 310029, Peoples R China
关键词: rice;starch;physicochemical property;pasting viscosity;gel texture;genotype;environment
期刊名称:JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY ( 影响因子:5.279; 五年影响因子:5.269 )
ISSN: 0021-8561
年卷期: 2004 年 52 卷 19 期
页码:
收录情况: SCI
摘要: Eight rice varieties with wide diversity in apparent amylose content (AC) were selected and planted in the early season and late season of Hangzhou and in the winter season of Hainan for two consecutive years to study the genotype x environment effects on the starch properties of the grain. Analyses of variance showed that AC, cool paste viscosity, breakdown viscosity, setback viscosity, peak time, gel hardness, adhesiveness, and cohesiveness were mainly affected by genotypic variation, whereas peak viscosity and hot paste viscosity were mainly affected by environmental variation. The year x season, year x variety, season x variety, and year x season x variety effects were significant for most traits, indicating significant genotype x environment interactions. AC was significantly correlated with all other parameters except PV. Because the Wx gene controls the synthesis of amylose in rice, the mechanism of how the environment affects starch properties is discussed in relation to Wx expression and regulation. The implications of the results for rice breeders and starch-based food manufacturers are discussed.
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