杏品种一年生休眠枝、花、幼果抗寒的相关分析

The hardiness of 25 varieties or species of apricot was assayed by electrolyte leakage cooperated well with logistic equation. The result show that the hardiness of low temperature of shoot-tissue, pink buds, full flowers and young fruits was: -28.5℃~-40℃, -7.0℃~-0.9℃, -3.0℃~-6.9℃ and -1.1℃~-2.2℃, respectively. There were significantly positive relationships in the hardiness among shoots pink buds, full flower and young fruit. The order of hardiness was shoots＞flowers＞young fruits, the order of hardiness within organ of a flower was: petal＞stamen＞pistil.