Study on pollen viability and stigma receptivity of alfalfa

Alfalfa (Medicago sativa) was an extremely important legume forage variety in the development of agriculture and animal husbandry in the world. This paper took three alfalfa varieties introduced from Kunming and Deqin wild alfalfa as materials, the pollen viability, pollen number and stigma receptivity of varieties were studied. The results showed that there was great difference in pollen viability, pollen number and stigma receptivity of different varieties and different position. Basically, the pollen viability of Acrora was higher than other varieties. The pollen viability of middle and lower inflorescence in one alfalfa was significantly higher than the upper part (P0.05). The pollen number of CW1351 was higher than others. The stigma receptivity of Deqin was significantly higher than other varieties (P0.05).