旱作对稻米直链淀粉含量的影响研究  

Study on Effect of Dry-cultivation on Amylose Content in Rice

作　　者：石英尧[1] 石扬娟[1] 张志转[1] 王维刚[1] 陈多璞[1] 

机构地区：[1]安徽农业大学农学院,安徽合肥230036

出　　处：《安徽农业科学》2006年第17期4253-4254,共2页Journal of Anhui Agricultural Sciences

基　　金：安徽省"十一五"科技攻关项目"水稻新品种(组合)选育及技术创新"资助

摘　　要：选用了抗旱基因聚合杂交后代的147个品系为材料,以水作为对照,研究了旱作对稻米直链淀粉含量的影响。结果表明:总体上旱作处理抗旱新品系的直链淀粉含量比水作处理低,随着直链淀粉含量(AC)的增加,旱作和水作的差别越大。但在AC较低时,旱作比水作稍高,所以旱作对改善稻米直链淀粉含量是很有利的。旱作和水作处理下直链淀粉含量的线性关系可表示为y=0.671 1x+4.633,决定系数达0.903 8。The experiment in the content of amylose in 147 new flee lines was carried out under the condition of dry - cultivation and water-cultivation. The result was as follows： the amylose content in dry-cultivation was lower than that in water-cultivation. The higher the content of amylose was, the more the diversity was. But when the amylose content was very low, the amylose content of dry-cultivation was a little higher than that of water-cultivation, so the dry-cultivation was helpful to improve the amylose content. The amylose content of dry-cultivation and water-cultivation had the correlation of y = 0.6711 x ＋4.633.

关 键 词：旱作 直链淀粉含量 影响 

分 类 号：S511[农业科学—作物学]