华北农学报2016，Vol.31Issue(4)：146-152,7.DOI:10.7668/hbnxb.2016.04.024
覆膜直播与常规手栽种植方式对水稻光合物质生产特征的影响
Effect of Characteristics of Photosynthesis and Matter Production of Rice under Two Different Planting Methods with Film Mulching Way of Direct Seeding and Traditional Manual Transplanting
摘要
Abstract
In order to explore the characteristics of dry matter production and photosynthesis of rice under dif-ferent planting methods in film mulching way of direct seeding and traditional manual transplanting.Four rice culti-vars,two early maturing indica rices,Anyou 136 and Xiangzaoyou 2017,two late maturing indicarices,Jinyou 785 and Ⅱ you 838 were as materials.We compared the dry matter accumulation,distribution,translocation and leaf ar-ea,photosynthetic potenti,crop growth rate and net assimilation rate of rice under two different planting methods film mulching way of direct seeding and traditional manual transplanting,traditional manual transplanting were as CK. Results showed that:the main growth period (booting stage,heading stage,waxy stage and maturity stage)under two different planting methods,the dry matter weight per plant,dry matter weight of population,the dry matter accumula-tion at different stages,dry matter export and transformation,the export rate and transformation rate of leaf,stem and sheath for film mulching way of direct seeding were higher than traditional manual transplanting.The late matuing indica rice of dry matter accumulation and the radio of dry matter accumulation of population were slightly higher than the early maturing varieties in main growth period of rice.The dry matter ratio of leaf and sheath reach its max-imum at booting,reached its minimum level at maturity stage,the dry matter ratio of stem reach its maximum at heading,the same as reached its minimum level at waxy stage,but stem′s dry matter rised a little again.So those physical signs showed negative,dry matter export and transformation,the export rate and transformation rate of stem. Under two different planting patterns,in the production of photosynthesis,leaf area index,photosynthetic potential, net assimilation rate with film mulching way of direct seeding were higher than traditional manual transplanting.Due to the effect of grain filling rate,the decreasing rate of leaf area for film mulching way of direct seeding are higher than traditional manual transplanting.The results suggested that dry matter and photosynthetic production of rice with different planting methods had their own characteristics.关键词
水稻/种植方式/干物质生产/光合生产Key words
Rice/Planting method/Dry matter production/Photosynthetic production分类
农业科技引用本文复制引用
郭慧,邓华凤,李树杏,杨占烈,何强,甘雨,张武汉,向关伦,孙平勇,舒服..覆膜直播与常规手栽种植方式对水稻光合物质生产特征的影响[J].华北农学报,2016,31(4):146-152,7.基金项目
贵州省农科院基金项目（黔农科合（基金）2011013）；贵州省农科院自主创新科研项目（黔农科院自主创新科研专项字（2014）19号）；比尔和梅琳达·盖茨基金会项目-二期子项目（51587-15）；贵州省水稻产业技术体系建设项目（GZCYTX2015-0601）；国家重点研发计划项目 （）
