北京城区秋季红色叶元宝枫优良品种的筛选  

Selection on Splendid ‘Acer Truncatum’ Varieties of Fall-scenery-leaf

作　　者：王永格[1] 丛日晨[1] 

机构地区：[1]北京市园林科学研究所,北京100102

出　　处：《北方园艺》2010年第1期136-139,共4页Northern Horticulture

基　　金：北京市科学技术委员会资助项目(Z06090500030896)

摘　　要：以元宝枫在城区秋季叶片变红色为目标性状,以普通元宝枫为对照,连续3 a观测,对实生繁殖的元宝枫株系进行了人工选择。结果表明:温度变化是元宝枫秋季叶片变色的主导因子,变色前10 d平均温度低于15℃有利于秋色叶的形成;低温有利于秋色叶树种秋季变色,但不同株系变色色系还与其它外界环境因子及其自身机理和遗传特性有关。Using the Acer truncatum＇ s character of changing red leaf in autumn in urban area as the goal character, comparing with the common Acer truncatum, this test artificially selected several splendid seed-breed varieties. Through observing three years continuously, it indicated that temperature was the lead factor which conducing the red leaf. For example,when the average temperature was under 10 ℃ ,the leaf turns red faster. This text narrated that except some outside factors and its own mechanism and genetic characters, low temperature was more advantaged to the leaf changes color in autumn.

关 键 词：北京城区 秋色叶 元宝枫 红色叶 

分 类 号：S687[农业科学—观赏园艺]