摘要
采用二次回归通用旋转组合设计,研究了不同肥密水平对寒地下垂穗型水稻产量和品质的影响,结果表明:氮肥对产量的影响最大,其次为钾肥和插秧密度,同时采用频数分析法获得了产量最优栽培方案。氮肥可以提高蛋白质含量,整精米率、垩白米率、垩白度与氮肥呈二次曲线关系,钾肥与直链淀粉含量呈二次曲线关系,胶稠度会随着施肥量和密度的增加而下降。相关分析和通径分析表明,蛋白质含量、直链淀粉含量都与胶稠度呈显著的负相关,整精米率与垩白米率、垩白度存在显著的负相关,胶稠度是直接和间接影响食味评分的最主要因子。
With quadratic general rotatory combination design,the experiments studied the influence of different amounts of N,K and plant density on yield and quality of rice of drooping panicle type in cold region.The results indicated that nitrogen fertilizer for effect of the yield was the most important role,followed by potassium fertilizer and density.At the same time,the experiments obtained the optimum planting program on the yield by frequency analysis.Nitrogen fertilizer could increase the protein,but showed a quadratic relationship with the head rice rate,the chalky grain and chalkiness.Potassium fertilizer showed a quadratic relationship with the amylose content.Gel consistency would be increased when fertilizer and density added.The correlation analysis and path analysis indicated that there were negative correlations between the protein and gel consistency,amylose content and gel consistency,the head rice rate and chalky grain,the head rice rate and chalkiness.Gel consistency for the direct and indirect functions on the taste scores was the most important factor of all.
出处
《中国农学通报》
CSCD
北大核心
2011年第15期169-173,共5页
Chinese Agricultural Science Bulletin
基金
黑龙江省科技攻关计划项目(GA09B102-2-4)
关键词
寒地
下垂穗型
水稻
产量
品质
cold region
drooping panicle type
rice
yield
quality