Comprision of drought resistance and pistil development of three sorts apricot varieties

The drought resistance of three sorts of apricot varieties were compared in Chunhua County,Shaanxi Province.It found that the content of chlorophll of Prunus armeniaca × sibirica was higher than others in poor site.In regard to drought resistance Prunus armeniaca L.was highest, Prunus armeniaca × Siberia was higher and mei apricot was lowest.Meanwhile,there was obvious difference among there sorts of apricot varieties.The proportion of normal pistil of Prunus armeniaca × Sibirica was higher than others,and the pistil development of Mei apricot was poor badly.