恩施古楸资源概况及表型多样性
|
摘要
以恩施州各县市的古树名木统计数据为信息来源,调查了恩施州境内的古楸树资源。结果发现:楸树在恩施境内广泛分布,生长海拔范围300～1 400 m,主要生长在房前屋后,土地平缓肥沃地带,受人为干扰严重,伴生的乔木、灌木、草本等种类丰富多样。所有调查样本总体上树高平均值为18.45 m,胸径为46.04 cm,最大一棵树龄在600 a以上,不同地点楸树的叶片、果实、树皮颜色、腺点等特征形态各异,具有丰富的遗传多样性,这为楸树优良品种选育提供了良好的物质基础。
Based on the statistical data of ancient trees and famous trees in the counties and cities of Enshi,this paper investigated the resources of ancient Catalpa bungei in Enshi.The results showed that the trees were widely distributed in Enshi,with an altitude range of 300～1 400 m.They mainly grew in the front house,the land was gentle and fertile,and it was seriously disturbed by human beings.The associated trees,shrubs and herbs were rich and varied.The average tree height and DBH were 18.45 m and46.04 cm respectively.The largest tree was more than600 years old.The leaf,fruit,bark color and glandular spot of different locations were different in shape,and had rich genetic diversity.This provides a rich material foundation for the breeding of fine varieties of Catalpa bungei.
Based on the statistical data of ancient trees and famous trees in the counties and cities of Enshi,this paper investigated the resources of ancient Catalpa bungei in Enshi.The results showed that the trees were widely distributed in Enshi,with an altitude range of 300～1 400 m.They mainly grew in the front house,the land was gentle and fertile,and it was seriously disturbed by human beings.The associated trees,shrubs and herbs were rich and varied.The average tree height and DBH were 18.45 m and46.04 cm respectively.The largest tree was more than600 years old.The leaf,fruit,bark color and glandular spot of different locations were different in shape,and had rich genetic diversity.This provides a rich material foundation for the breeding of fine varieties of Catalpa bungei.
引文
[1]吴丽华,王军辉,林娟.楸树植物资源的研究概况[J].上海交通大学学报:农业科学版,2010,28(1):91-96.
[2]杨玉珍,王顺财,彭方仁.我国楸树研究现状及开发利用策略[J].林业科技开发,2006,20(3):4-7.
[3]韩恩贤,罗伟祥,赵辉,等.楸树育苗造林技术的研究[J].西北林学院学报,2002,17(1):19-23.
[4]乔勇进,夏阳,梁慧敏,等.试论楸树的生物生态学特性及发展前景[J].防护林科技,2003(4):23-24.
[5]吴春林,郝明灼,彭方仁,等.不同品种楸树幼树生长及生理特性比较[J].南京林业大学学报(自然科学版),2008,32(6):123-127.
[6]彭方仁,郝明灼,梁有旺,等.我国楸树种质资源现状及开发利用策略[J].林业工程学报,2011,25(6):1-5.
[7]梅芳,王军辉,贾继文,等.楸树种质生长和叶部性状的遗传多样性[J].植物遗传资源学报,2014,15(1):000206-214.
[8]孙嘏,刘洪剑,傅玉兰,等.江淮地区引种楸树光合生理特性的比较研究[J].林业科学研究,2008,21(5):635-639.
[9]王翔,王连红,王玮,等.烟台市楸树种质资源调查研究[J].浙江农业科学,2016,57(6):868-870.
[10]方乐成,夏慧敏,麻文俊,等.基于SSR标记的楸树遗传多样性及核心种质构建[J].东北林业大学学报,2017,45(8):1-5.
[2]杨玉珍,王顺财,彭方仁.我国楸树研究现状及开发利用策略[J].林业科技开发,2006,20(3):4-7.
[3]韩恩贤,罗伟祥,赵辉,等.楸树育苗造林技术的研究[J].西北林学院学报,2002,17(1):19-23.
[4]乔勇进,夏阳,梁慧敏,等.试论楸树的生物生态学特性及发展前景[J].防护林科技,2003(4):23-24.
[5]吴春林,郝明灼,彭方仁,等.不同品种楸树幼树生长及生理特性比较[J].南京林业大学学报(自然科学版),2008,32(6):123-127.
[6]彭方仁,郝明灼,梁有旺,等.我国楸树种质资源现状及开发利用策略[J].林业工程学报,2011,25(6):1-5.
[7]梅芳,王军辉,贾继文,等.楸树种质生长和叶部性状的遗传多样性[J].植物遗传资源学报,2014,15(1):000206-214.
[8]孙嘏,刘洪剑,傅玉兰,等.江淮地区引种楸树光合生理特性的比较研究[J].林业科学研究,2008,21(5):635-639.
[9]王翔,王连红,王玮,等.烟台市楸树种质资源调查研究[J].浙江农业科学,2016,57(6):868-870.
[10]方乐成,夏慧敏,麻文俊,等.基于SSR标记的楸树遗传多样性及核心种质构建[J].东北林业大学学报,2017,45(8):1-5.