作物学报2016，Vol.42Issue(1)：93-103,11.DOI:10.3724/SP.J.1006.2016.00093
烯效唑干拌种对甜荞茎秆抗倒性能的影响
Effects of Seed Dressing with Uniconazole Powder on Lodging Resistance of Culm in Common Buckwheat
摘要
Abstract
Lodging is one of the important factors affecting the yield and quality of common buckwheat (Fagopyrum esculentum M.) worldwide. Ningqiao 1, a cultivar of common buckwheat with moderate lodging resistance was used in this study to investi-gate the dynamic changes of lodging behavior, yield, culm snapping resistance, lodging index, culm morphological characteristics and culm anatomical structure seed dressing with uniconazole powder (0, 100, 200, and 300 mg kg–1). The results indicated that seed dressing with uniconazole powder had significantly effects on the lodging resistance of culm in common buckwheat. With the increase of uniconazole powder concentration, the yield, culm snapping resistance, diameter of the 2nd internode, dry weight of the 2nd internode, filling degree, mechanical tissue layer number, mechanical tissue thickness, culm wall thickness, vascular bundle number, and vascular bundle area showed an increased-decreased trend, whereas, the lodging percentage, lodging index, plant height, culm gravity height, culm fresh weight, and length of the 2nd internode showed an decreased-increased trend. In this case, the treatment of seed dressing with 200 mg kg–1 uniconazole powder could optimize the culm structure, improve the culm quality, reduce the lodging risk, and enhance the yield of common buckwheat.关键词
甜荞/烯效唑/抗倒性能/形态特性/解剖结构Key words
Common buckwheat/Uniconazole/Lodging resistance/Morphological characteristics/Anatomical structure引用本文复制引用
刘星贝,汪灿,胡丹,杨浩,佘恒志,阮仁武,吴东倩,易泽林..烯效唑干拌种对甜荞茎秆抗倒性能的影响[J].作物学报,2016,42(1):93-103,11.基金项目
本研究由中央高校基本业务费专项资金(XDJK2015B010),重庆市荞麦产业体系创新团队建设项目(CQCYT2011001)和重庆市科技计划应用开发重点项目(cstc2013yykfb0118)资助。This study was supported by the Fundamental Research Funds for the Central Universities (XDJK2015B010), Chongqing Buckwheat Industry System Innovation Team (CQCYT2011001) and Key Project of Application Development for the Chongqing Science and Technology Pro-gram (cstc2013yykfb0118) （XDJK2015B010）
