昆明引种地的元宝枫开花结实习性研究  

A Study on Flowering and Fruiting Characteristics of Acer truncatum in Introducing Site of Kunming

作　　者：王红娟[1] 段安安[1] 吴裕[1] 

机构地区：[1]西南林学院,云南昆明650224

出　　处：《西部林业科学》2006年第4期68-72,共5页Journal of West China Forestry Science

基　　金：云南省科技攻关项目"元宝枫扩大区域性试验(2000A4-01)"资助。

摘　　要：以云南昆明地区引种栽培的元宝枫林为对象对其林木的开花结实习性进行了调查薪究。结果表明，在昆明引种地元宝枫的花期主要集中在3月份；树冠东南西北4个方位的开花结实量基本无差异；上层树冠开花结实数是下层树冠开花结实数的3倍左右；结实数与开花数呈显著正相关，相关系数为0．6428；从坐果鲥果实开始成熟期的落果率约为50％；果实各性状的株间变异特别大，变异系数8．20％-50．55％，但同一植株的果实形态和大小差异不大。Taking the Acer truncatum trees cultivated in Kunming district of Yunnan province as the research targets, the flowering and fruiting characteristics of this species were studied. In Kunming, the flowering time of Acer truncatum tree was mainly distributed in March, there was no significant difference on the number of flower and fruit at east, west, south and north four orientations of the crown. More than 70 % flowers and fruits were distributed on the upper level branches and less than 30 % were on the lower branches. The number of flowers was posi- tively correlated with the number of fruits, with the correlation coefficient of 0. 642 8. The fruit drop rate from fruit setting to drop beginning was around 50 %. There was obvious variance on characters of fruits among trees, with the variance coefficient of 8.20 % - 50. 55 %. The variance in the same tree was not significant.

关 键 词：昆明引种地 元宝枫 开花结实 习性 

分 类 号：Q949.754.4[生物学—植物学]