赣中北油稻稻三熟制条件下不同水稻品种头季生长特性及其对再生季产量的影响  

Growing Characteristics of Main Crop and Their Effects on Yield of Ratoon Rice of Different Rice Varieties under the Triple-cropping System of Rape-Rice-Rice in the Central and Northern Region of Jiangxi Province

作　　者：李亚贞[1] 郑伟[1] 肖国滨[1] 肖小军[1] 黄天宝[1] 吴艳[1] 吕伟生 刘小三[1] 陈明[1] 赖诗盛 叶川[1] LI Ya-zhen;ZHENG Wei;XIAO Guo-bin;XIAO Xiao-jun;HUANG Tian-bao;WU Yan;LU Wei-sheng;LIU Xiao-san;CHEN Ming;LAI Shi-sheng;YE Chuan(Jiangxi Institute of Red Soil/Jiangxi Key Laboratory of Red Soil Arable Land Conservation/Scientific Observation and Experimental Station of Arable Land Conservation （Jiangxi Province）, Ministry of Agriculture, Nanchang, Jiangxi 331717, China;Zhanggong District Foodstuffs Circulation Service Center of Ganzhou City, Ganzhou, Jiangxi 341000, China)

机构地区：[1]江西省红壤研究所/江西省红壤耕地保育重点实验室侬业部江西耕地保育科学观测试验站,江西南昌331717 [2]赣州市章贡区粮食流通服务中心,江西赣州341000

出　　处：《杂交水稻》2018年第2期67-72,共6页Hybrid Rice

基　　金：江西省重大科技支撑计划项目(20143ACF60009); 江西省科研院所基础设施配套项目(20151BBA13041); 公益性行业(农业)科研项目(201503123-07); 江西省科技支撑计划项目(20151BBF60084)

摘　　要：为筛选油稻稻三熟制条件下适合种植的再生稻品种及研究头季生长对再生季的影响,在大田试验条件下,以10个杂交水稻品种为材料,比较分析了头季稻生育期、分蘖、干物质积累和分配等性状及其对再生稻产量的影响。结果表明,头季和再生季产量在不同品种间存在显著差异;再生季各产量构成因素在不同品种间也存在显著差异;头季产量与头季单株干重和穗重呈极显著正相关;再生季产量与头季齐穗后单株干物质积累量呈极显著正相关,与头季茎鞘叶物质输出率和贡献率呈显著负相关。虽然所有品种均可在10月底安全成熟,但考虑到三熟制油菜季的适宜播种期,再生稻的成熟期应在10月25日之前。综合生育期和产量特性,推荐深两优5814、C两优608、准两优608、丰两优香1号等4个品种在江西中北部的油稻稻三熟制条件下作为再生稻栽培。To screen suitable varieties for ratoon rice and understand the effects of main crop growth on ratoon rice under the rape-rice-rice triple-cropping system,ten hybrid rice varieties were used to analyze the growing characteristics of growth period,tillering and dry matter accumulation and distribution of the main crop and the effects of these characteristics on the yield of ratoon rice.The results showed that there existed a significant difference in the yield of both main crop and ratoon rice among different varieties.The difference of the yielding components of ratoon rice was also significant among different varieties.There was a very significant positive correlation of main crop yield to the dry matter weight per plant and panicle weight per plant of main crop.There existed a very significant positive correlation of the ratoon rice yield to the dry matter accumulation per plant after full heading of the main crop,but a significant negative correlation of the ratoon crop yield to the output rate and contribution rate of shoot dry matter of the main crop.In central and northern region of Jiangxi Province,all of the rested hybrid rice varieties got fully matured at the end of October.However,in view of the suitable sowing time for the rape,the harvesting date of ratoon rice should be before October 25.Therefore,based on the performance in yield and growth duration,Shengliangyou 5814（SLY 5814）,C Liangyou 608（CLY 608）,Zhunliangyou 608（ZLY 608） and Fengliangyou Xiang 1（FLY X1） are recommended as the suitable varieties for ratoon rice in the triple-cropping system in the central and northern region of Jiangxi Province.

关 键 词：杂交水稻 三熟制 再生稻 干物质积累 产量 

分 类 号：S511.01[农业科学—作物学] S311