农业研究与应用2019，Vol.32Issue(1)：1-5,5.
甘薯新品种"文薯2号"产量和农艺性状的环境效应分析
Environmental Effects on Yield and Agronomic Traits of New Sweet Potato Variety "Wenshu 2"
摘要
Abstract
In order to investigate the natural variations and environmental effects on yield and agronomic traits of Wenshu 2, we determined the yield and agronomic traits of Wenshu 2 under different environmental factors and analyzed their correlations. Results indicated that the yield was higher in the regions (Kaihua and Weimo) at an altitude of 600～1700 m, the starch content was higher in the regions (Tianbao and Yangwan) at an altitude below 600 m, the palatability of tuber was better in the regions (Xiaojie and Bozhu) at an altitude above 1700 m, the mean variation coefficients (CV) of agronomic traits (dry matter content, starch content and palatability) were lower in the regions (Kaihua and Weimo) at an altitude of600～1700 m. Correlation analysis showed that fresh root yield, starch yield and dry root yield of sweet potato had very significant positive correlations (r≥0.708); base branch number had obvious negative correlation (r=-0.39) with vine length and very significant negative correlation with stem diameter (r=-0.101); starch content had very remarkable negative correlation with commodity rate (r=-0.097), and remarkable negative correlation with stem diameter (r=-0.099), and very significant positive correlation with dry matter content (r=0.398);palatability had significant negative correlations with dry matter content, starch content and starch yield (r=-0.748,-0.618 and-0.498). The experiment results provide some useful methods for further breeding high-quality cultivars and developing sweet potato resources.关键词
文薯2号/产量/农艺性状/环境效应/相关性Key words
Wenshu 2/yield/agronomic trait/environmental effect/correlation引用本文复制引用
赵大伟,徐宁生,黄兴粉,邓国军,孟凡来..甘薯新品种"文薯2号"产量和农艺性状的环境效应分析[J].农业研究与应用,2019,32(1):1-5,5.基金项目
国家现代甘薯产业技术体系项目(CARS-11-B-13). （CARS-11-B-13）
