作物研究2019，Vol.33Issue(1)：39-43,5.DOI:10.16848/j.cnki.issn.1001-5280.2019.01.09
多效唑对蔓性千斤拔种子产量和干物质生产特性的影响
Effect of Multi-effect Triazole on Seed Yield and Dry Matter Production of the Flemingia philippinensis
摘要
Abstract
In order to provide theoretical basis and technical guidance for the seed production technical system of high-yield in Flemingia philippinensis, a field experiment was conducted to explore the regulation effect of multi-effect triazole (MET) on seed yield and dry matter production of Flemingia philippinensis. The experiment consisted of four treatments of different content of MET. The results indicated the lower contents of MET treatment showed significant positive effect on the increasing of seed yield of Flemingia philippinensis, while the higher content of MET treatment had certain negative impact on the yield. Compared with CK, seed yield (1 318. 5 kg/hm2) of low concentration multi-effect triazole treatment (50 mg/L) significantly increased by 17. 3％, but there was no significant difference in harvest index between multi-effect triazole treatment and CK treatment. Its advantages mainly came from 1 000-grain weight and single-plant grain weight, which increased by 8. 31％ and 20. 6％ respectively compared with CK treatment. At the same time, the SPAD value of leaves increased by 3. 44％ ～ 4. 67％ compared with CK, and the total dry matter accumulation per plant increased by20. 48％. The correlation analysis showed that seed weight per plant was positively correlated with total seed number and pod number per plant ( r = 0. 6126 and 0. 5657), negatively correlated with seed setting rate ( r =-0. 5361), and path analysis showed that the direct effect of yield components on grain weight per plant was grain number per plant> seed setting rate> 1000-grain weight> pod number per plant. The contribution rate of grain number per plant was the highest, 0. 4918, followed by 0. 2677.关键词
蔓性千斤拔/多效唑/种子产量/干物质生产Key words
Flemingia philippinensis/multi-effect triazole/seed yield/dry matter production分类
农业科技引用本文复制引用
李小勇,夏祥华,黄丹娜,蒋臻韬..多效唑对蔓性千斤拔种子产量和干物质生产特性的影响[J].作物研究,2019,33(1):39-43,5.基金项目
广西科学研究与技术开发计划项目(桂科重1598005-14) （桂科重1598005-14）
国家科技支撑计划项目(2011BAI01B04) （2011BAI01B04）
