通过对冬杏物候期及花芽分化的调查分析,了解冬杏的物候期及花芽分化特性以及与其他不同成熟期杏品种间的差异.结果表明,冬杏花芽3月下旬萌动,4月初始花,花期5 d左右.4月中旬展叶,11月上旬开始落叶,树体营养生长期为219 d左右.花期和营养生长期与其他成熟期品种相比较短,物候期各阶段的开始时间晚于其他成熟期杏品种.花芽6月下旬进入分化期,7月中旬进入花萼分化期,7月中下旬进入花瓣分化期,8月上旬进入雄蕊分化期,8月上中旬进入雌蕊分化期,各分化时期有交错重叠的现象,且进入各分化时期的时间及整体分化进程均要晚于其他成熟期杏品种.%In order to comprehend the characteristics of phonological period and flower bud differentiation about Armeniaca vulgaris cv.‘Dongxing’,phonological period and flower bud differentiation of Armeniaca vulgaris cv.‘Dongxing’and the four different ripening‐type apricots have been investigated and analyzed. The results showed that the flower buds of Armeniaca vulgaris cv.‘Dongxing’sprouted in in the last ten‐day period of March and started flowering at the beginning of April,and flowering period lasted about 5 days.Its leaves exhibited in the middle ten‐day period of April and leaf falling began in the first ten‐day period of Nov..The vegetative period last about 2 1 9 days.The flowering period and vegetative period of Ar‐meniaca vulgaris cv.‘Dongxing’was shorter than the other different maturity apricots,and it’s initial time of each phonological period step was also later than others.The differentiation of Armeniaca vulgaris cv.‘Dongxing’flower buds started in the last ten‐day period of June,calyx started in the middle ten‐day peri‐od of July,petal started at the middle to last ten‐day period of July,stamen started in the first ten‐day peri‐od of July,pistil started at the first to middle ten‐day period of July.The period of different flower bud differ‐entiation processes were partially overlapping,meanwhile the initial time and whole process of flower bud differen‐tiation in Armeniaca vulgaris cv.‘Dongxing’were later than the other different maturity apricots.
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