ethnic derivation

This article summarizes the cultivar origin and performance of Taoyuan chicks,and making a preliminary analysis on utilization approaches and developing prospects to Taoyuan chicks.

作者综述了桃源鸡的品种来源及生产性能,并初步分析了桃源鸡的开发途径和开发前景。

Effects of sowing depth and seed source on seedling emergence of Leymus chinensis;

播种深度和种子来源对羊草种苗出土的影响