Evaluation of heat tolerance of alfalfa varieties(Medicago sativa) at seedling stage

摘要

Alfalfa ( Medicago sativ a) is an important legume forage used widely in China.However, high temperature is still the main adverse factor limiting alfalfa production.The aim of the present study was to evaluate heat tolerance of 30 alfalfa varieties to chose high heat tolerance alfalfa applied in some high temperature areas in China.