播期对苏北盐碱地不同水稻品种生长发育进程及产量的影响  

Sowing Date in Saline-Alkali Land of Northern Jiangsu: Effects on Growth and Development Process and Yield of Rice Varieties

作　　者：代金英 胡蕾 孙一标[1] 施伟[1] 赵绍路 朱静雯[1] 刘凯[1] 严国红[1] 陈大勇[1] 王爱民[1] Dai Jinying;Hu Lei;Sun Yibiao;Shi Wei;Zhao Shaolu;Zhu Jingwen;Liu Kai;Yan Guohong;Chen Dayong;Wang Aimin(Institute of Agricultural Science in Jiangsu Coastal Areas,Yancheng Jiangsu 224000)

机构地区：[1]江苏沿海地区农业科学研究所,江苏盐城224000

出　　处：《中国农学通报》2021年第3期1-6,共6页Chinese Agricultural Science Bulletin

基　　金：江苏省农业科技自主创新项目“优质稻麦绿色高效生产关键技术研究与示范”(CX(18)1002);江苏省重点研发计划(现代农业)重点项目“稻麦周年优质丰产绿色高效技术集成创新与示范”(BE2019343);2018年度沿海盐碱地农业科学观测实验站开放课题“水稻雄性不育突变体ZD1的鉴定与基因定位”(YHS201803)。

摘　　要：为了探究播期对苏北盐碱地环境下不同水稻品种的生长发育进程及产量的影响,本试验采用大田小区试验,调查和比较不同播期下‘南粳9108’和‘连粳11号’的生育期、干物质积累量、株高和产量等相关性状。结果表明:随播种时间推迟,‘南粳9108’和‘连粳11号’的全生育期变短;‘南粳9108’的拔节期、齐穗期和成熟期的干物质重呈减小趋势,‘连粳11号’呈先升后降趋势;播期对‘连粳11号’株高影响差异显著,且株高随播期推迟呈下降趋势;‘南粳9108’和‘连粳11号’的播种时间推迟,其有效穗、每穗粒数和产量呈下降趋势。‘南粳9108’在苏北盐碱地区的最佳播种时间为5月24日,‘连粳11号’为5月31日。To explore the effect of sowing date on the growth and development process and yield of different rice varieties in the saline-alkali environment of northern Jiangsu, this experiment adopted the field test to investigate and compare the growth periods, dry matter accumulation, plant high, yield and other traits of‘Nanjing 9108’and‘Lianjing 11’under different sowing dates. The results showed that: with the delay of sowing date, the growth period of‘Nanjing 9108’and‘Lianjing 11’became shorter;the dry matter accumulation at the jointing stage, full heading stage and maturity stage of‘Nanjing 9108’showed a decreasing trend, and‘Lianjing 11’showed an upward trend and then a downward trend. The effect of sowing date on the plant height of‘Lianjing 11’was significantly different, and the plant height showed a downward trend with the delay of sowing date. The postponing of the sowing date of‘Nanjing 9108’and‘Lianjing 11’decreased the panicle number, grains per panicle and yield. The best sowing date of‘Nanjing 9108’in the saline-alkali environment of northern Jiangsu is May 24, and that of‘Lianjing 11’is May 31.

关 键 词：水稻 播期 盐碱地 生育期 干物质积累量 株高 产量 

分 类 号：S511[农业科学—作物学]