扬州大学学报（农业与生命科学版）2017，Vol.38Issue(3)：73-82,10.DOI:10.16872/j.cnki.1671-4652.2017.03.014
机插方式和密度对水稻主要品质性状及淀粉RVA谱特征的影响
Effect of different mechanical transplanted methods and plant density on grain quality and characteristic of starch RVA of rice
摘要
Abstract
This study was to evaluate the effects of different mechanically transplanted methods and plant densities on grain quality and starch RVA.Three panicle typed rice cultivars were field-grown.We compared three mechanically transplanted methods including mechanically transplanted pot seedling (A),mechanically transplanted carpeted seedling in row spacing of 30 cm (B),mechanically transplanted carpeted seedling in row spacing of 25 cm (C),and set different plant density in A,B,C methods.With plant density decreased,milling quality was improved for different panicle typed rice in different mechanically transplanted method;chalky grain rate,chalkiness degree,amylose content and protein content of three panicle typed rice cultivar showed decline trend,but it was opposite in gel consistency.In the same plant density,compared to those of mechanically transplanted carpet seedlings (CS),brown rice rate,milling quality of mechanically transplanted pot seedling (PS) increased,but chalky grain rate,chalkiness degree,amylose content and protein content decreased,there was no difference between B and C method.The results of starch RVA were analyzed,peak viscosity and breakdown increased and setback decreased in different mechanically transplanted method for LPT with plant density decreased.For MPT,with plant density decreased,peak viscosity and breakdown increased and then decreased in A and B method,but those of C method increased,setback decreased and then increased in A and B method,those of C method showed decline.For SPT,with plant density decreased,peak viscosity and breakdown increased and then decreased in A,B and C method,but setback decreased and then increased.In the same plant density,PS had greater peak viscosity and breakdown and lower setback than those of CS.关键词
水稻/机插方式/密度/稻米品质/RVA谱特征Key words
rice/mechanically transplanted methods/density/grain quality/characteristic of starch RVA分类
农业科技引用本文复制引用
胡雅杰,郭保卫,吴培,邢志鹏,钱海军,张洪程,戴其根,霍中洋,许轲,魏海燕..机插方式和密度对水稻主要品质性状及淀粉RVA谱特征的影响[J].扬州大学学报（农业与生命科学版）,2017,38(3):73-82,10.基金项目
国家重点研发计划项目(2016YFD0300503) （2016YFD0300503）
江苏省农业科技自主创新项目(CX[2]1003.9) （CX[2]1003.9）
江苏省高校优势学科建设工程项目(2014-11) （2014-11）
