摘要
[目的]探究水稻倒伏后的扶扎效果。[方法]通过不同时间倒伏水稻的扶扎试验,分析扶扎对倒伏水稻产量及其构成因素的影响。[结果]与倒伏未扶扎相比,9月23日,倒伏扶扎水稻的结实率低4.27个百分点,千粒重低2.58 g,减产9.30%;9月30日,其结实率高5.99个百分点,千粒重低0.54 g,增产8.97%;10月6日,其结实率高9.13-9.40个百分点,千粒重高0.54-1.00 g,增产12.79%-15.91%。9月23日,倒伏扶扎连6号较倒伏未扶扎的总粒数少12.3粒,实粒数低11.77粒;9月30日,倒伏扶扎连6号较倒伏未扶扎的实粒数高,瘪粒数低。连9号倒伏未扶扎的实粒数最少,瘪粒数最多。[结论]与倒伏未扶扎水稻相比,灌浆前期倒伏扶扎水稻减产,灌浆后期倒伏扶扎水稻的增产效果明显。
[Objective] The study aimed to explore the uprearing and bundling effect on lodged rice.[Method] The effects of uprearing and bundling on the yield and yield components of lodged rice were analyzed through uprearing and bundling experiments on the lodged rice in different periods.[Result] Compared with lodged rice without uprearing and bundling,on Sep.23rd,the seed setting rate of lodged rice with uprearing and bundling was 4.27 percent points lower,its 1000-seed weight was 2.58 g lower and its yield reduced 9.30%;on Sep.30th,its seed setting rate was 5.99 percent points higher,its 1000seed weight was 0.54 g and its yield increased 8.97%;on Oct.6th,its seed setting rate was 9.13～9.40 percent points higher,its 1000-seed weight was 0.54～1.00 g higher and its yield increased 12.79%～15.91%.On Sep.23rd,the total grain number of lodged Lian 6 with uprearing and bundling was 12.3 grains less and its filled grain number was 11.77 grains lower than that without uprearing and bundling.On Sep.30th,the filled grain
number of lodged Lian 6 with uprearing and bundling was higher and its shrunken grain number was lower than that without uprearing and bundling.The filled grains of lodged Lian 9 without uprearing and bundling were least and its shrunken grains were most.[Conclusion] Compared with lodged rice without uprearing and bundling,the yield of lodged rice with uprearing and bundling in early filling period reduced and the effect of increasing yield on the lodged rice with uprearing and bundling in late filling period was significant.
出处
《安徽农业科学》
CAS
北大核心
2008年第12期4902-4903,共2页
Journal of Anhui Agricultural Sciences
关键词
水稻
倒伏
扶扎
Rice
Lodging
Uprearing and bundling
