长沙烟稻轮作区烤烟正常与推迟采收条件下的适宜晚稻品种筛选  

Optimal Late Rice Variety Screening Under Normal and Delayed Harvest of Flue-cured Tobacco in Tobacco-rice Rotation Region of Changsha

作　　者：杨晶[1] 谷子寒 王元元[1] 唐利忠 裴晓东 李帆 黎娟[1] 易镇邪[1] 

机构地区：[1]湖南农业大学农学院/南方粮油作物协同创新中心,长沙410128 [2]长沙市烟草公司浏阳分公司,湖南浏阳410300 [3]湖南省烟草公司长沙市公司,长沙410007

出　　处：《中国农学通报》2016年第21期11-17,共7页Chinese Agricultural Science Bulletin

基　　金：国家科技支撑计划项目"长江中游南部(湖南)双季稻持续丰产高效技术集成创新与示范"(2011BAD16B01);国家科技支撑计划项目"湖南双季稻大面积均衡增产技术集成研究与示范"(2012BAD04B10-01);国家科技支撑计划项目"湘南库塘与提引灌区水稻丰产节水节肥技术集成与示范"(2013BAD07B11-02);湖南省科技计划项目"烟后晚稻高效安全栽培技术研究与示范"(2013NK3036);长沙市烟草公司科技项目"烟稻复种体系安全高效生产关键技术研究"(12218);长沙市烟草公司科技项目"烟稻复种体系养分高效利用研究"(12231)

摘　　要：为了筛选出适应长沙烟稻轮作区不同烟叶采收期的晚稻品种,模拟烤烟正常采收与推迟采收2种条件,以15个晚稻品种为材料开展了大田品种比较试验。结果表明:(1)从全生育期角度,6月18日播种条件下,所有品种均适合作烟后晚稻种植,而6月28日播种条件下仅‘湘丰优103’、‘隆香优130’、‘深优9520’、‘湘丰优9号’、‘金优284’、‘丰源优299’、‘丰源优272’能够正常成熟。(2)从产量角度,6月18日播种条件下,‘两优527’、‘丰源优272’和‘隆香优130’产量可达8000 kg/hm^2左右,是烟稻轮作区烟叶正常采收条件下烟后晚稻品种的首选;6月28日播种条件下,‘丰源优272’、‘湘丰优103’、‘深优9520’和‘湘丰优9号’是较佳选择,产量可达7600 kg/hm^2以上。(3)相关分析表明,产量与每穗粒数呈显著正相关,与经济系数呈正相关,因此选择穗型较大、经济系数较高的晚稻品种易获得高产。结果对长沙烟区烟后晚稻品种选择具有一定指导作用。In order to screen out optimal late rice varieties which adapt to different harvest times of flue-cured tobacco in tobacco-rice rotation region of Changsha, variety comparative experiments were conducted with 15 late rice varieties as materials under two simulated harvest times of flue-cured tobacco： normal harvest anddelayed harvest. The results showed that：（1） from the whole duration perspective, all varieties adapted to beplanted as late rice after tobacco under the sowing time of June 18 th, while only‘Xiangfengyou 103＇,‘Longxiangyou 130＇,‘Shenyou 9520＇,‘Xiangfengyou No.9＇,‘Jinyou 284＇,‘Fengyuanyou 299＇and‘Fengyuanyou 272＇could mature normally under the sowing time of June 28th;（2） from the yield perspective,sown on June 18 th, the yield of‘Liangyou 527＇,‘Fengyuanyou 272＇and‘Longxiangou 130＇could reachabout 8000 kg/hm^2, which were the first choice of late rice variety after tobacco for tobacco-rice rotation regionunder normal harvest of tobacco leaves; sown on June 28 th,‘Fengyuanyou 272＇,‘Xiangfengyou 103＇,‘Shenyou 9520＇and‘Xiangfengyou No.9＇were ideal choices, whose yield was above 7600 kg/hm^2;（3） correlation analysis showed that a significantly positive correlation existed between yield and grain numberper panicle, and a positive correlation existed between yield and harvest index. So choosing late rice varietieswith bigger panicle type and higher harvest index is easy to gain high yield. The results can guide the late rice variety screening in Changsha tobacco area.

关 键 词：烟稻轮作区 长沙 烟后晚稻 品种筛选 

分 类 号：S511.33[农业科学—作物学]