花曲柳苗期根系与生长的关系  

Relationship between Root System and Growth of Fraxinus rhynchophulla Hance in Seedling Period

作　　者：郝广明[1] 项凤武[1] 

机构地区：[1]北华大学,吉林132013

出　　处：《东北林业大学学报》2006年第2期20-21,共2页Journal of Northeast Forestry University

摘　　要：为培育优质、高效花曲柳(FraxinusrhynchophullaHance)速生丰产林,在其自然分布区的10个种源进行苗期种源试验的基础上,对花曲柳苗期根系与生长进行了研究。供试种源种子采用沙埋催芽处理,随机区组、床式散播育苗。根据统计学原理对一年生苗木苗高、地径、主根长、侧根数、根幅的测量数据进行了相关性分析。结果表明:花曲柳一年生苗高、地径都与根幅宽成正相关性,苗高有62.04%由根幅决定,地径有70.11%由根幅来决定;花曲柳一年生苗高与地径、侧根数、主根长不存在正相关。Provenances trial of Fraxinus rhynchophulla in seedling period was conducted to 10 seed sources within its natural distribution area in order to cultivate fast-growing and high-yield F. rhynchophuUa forests with excellent wood quality. The experimental seeds were buried with sands to sprout, and then scattered randomly for bed cultivation. The correlations between seedling height, diameter at base, main root length, lateral root number and root range were analysed according to statistical principles. Results showed that positive correlations were found between seedling height, diameter at base and root range of one-year-old F. rhynchophulla seedlings, and 62.4 percent of seeding height and 70.11 percent of diameter at base depended on root range. There were no positive correlations between seedling height and diameter at base, lateral root number or main root length.

关 键 词：花曲柳 根系 生长 相关性 

分 类 号：S792[农业科学—林木遗传育种]