始穗期喷施抗旱剂对地膜旱作水稻后期光合性能及产量的影响  

The Effect of Materials of Drought Resistance Spray on the Photosynthesis and Dry Matter and Yield of Rice Cultivated in Aerobic Land

作　　者：杨安中[1] 朱启升[2] 张德文[2] 杨前进[2] 

机构地区：[1]安徽科技学院植物科学学院,安徽凤阳233100 [2]安徽农科院绿色食品研究所,安徽合肥230031

出　　处：《安徽科技学院学报》2007年第1期13-17,共5页Journal of Anhui Science and Technology University

基　　金：国家粮食丰产工程项目(2004BA520A21-2);安徽省"十一五"科技攻关重大项目(06003010B);安徽科技学院重点学科建设基金项目(YZD2004-04);安徽省教育厅项目(2006j030c)资助

摘　　要：采用大田随机区组设计,研究了始穗期喷施EDTA、黄腐酸、乙酰水杨酸、CaCl2等抗旱性物质对地膜旱作水稻后期光合性能、干物质积累及产量的影响。结果表明:始穗期喷施EDTA、黄腐酸、乙酰水杨酸、CaC l2能延缓叶片衰老,使地膜旱作水稻后期保持较高功能叶面积指数及叶绿素含量,提高光合效率,增加光合产物积累,促进籽粒灌浆,提高产量,其中乙酰水杨酸处理增产最显著,较对照增产达13.8%。By randomized block design, the effect of spraying drought resistants during early earing stage on the photosynthesis, and yield of hybrid rice IIyouming 86 and variety Zhongxian 898 cultivated in aerobic soil were studied. The results showed as follows ： the functional leaf area index, the content of chlorophyll, the efficiency of photosynthesis ,the dry matter, the filling and the yield of rice cultivated in aerobic soil were increased with EDTA, fulvic acid, salicylic acid, Cacl2 were sprayed rice cultivated in aerobic land during early earing stage. Among these, the salicylic acid treatment is the best. The highest yield increase by 13.8%.

关 键 词：抗旱性物质 旱作水稻 干物质积累 产量 

分 类 号：S511.6[农业科学—作物学]