Morphology and leaf nutrition of introduced Robinia pseudoacacia clones

来源 :Forest Science and Practice | 被引量 : 0次 | 上传用户:dxseu
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
In order to study and popularize clones from the introduced Robinia pseudoacacia, morphological charac- teristics and leaf nutrition of samples of a three-year-old stand were observed and analyzed during its growing season. Combined with data on rooting ability, height and basal diameter, comparisons were made on morphological characteristics, growth traits and leaf nutrition of 11 introduced R. pseudoacacia clones (two from Hungary and nine from South Korea) and two domestic clones. The results show that there are significant differences in growth and morphological characteristics among the 13 clones, but no significant differences in the contents of crude protein and crude fibers in the leaves (p > 0.05). Height and basal diameter growth of clones B and G were recorded as the fastest, while clone H1 was the slowest. Clone H2 had the largest leaflets, three times as large as other clones, while K4 had the heaviest dry weight per 100 leaflets because of its thick leaves. The 13 clones can be divided into four classes based on the number of leaflets per compound leaf, i.e., 1-3, 13-17, 15-23 and 21-25. There were significant differences in thorn size: H2 , with the largest leaflets had the smallest thorns. While of course all clones produced roots, there were significant differences; clones 2N, K5 and B had many adventitious roots, while clones K3 , K4 and H1 had few. Correlation between content of crude protein and (length × width of leaf) was positive (p < 0.05), while correlations of the content of crude protein, with the number of leaflets per compound leaf, petiole length of compound leaf and thorn length were negative (p < 0.01). Plant height and basal diameter were positively correlated with each other (p < 0.01) and negatively correlated with base width of thorns (p < 0.05) . In order to study and popularize clones from the introduced Robinia pseudoacacia, morphological charac- teristics and leaf nutrition of samples of a three-year-old stand were observed and analyzed during its growing season. Combined with data on rooting ability, height and basal diameter , comparisons were made on morphological characteristics, growth traits and leaf nutrition of 11 R. R. pseudacacia clones (two from Hungary and nine from South Korea) and two domestic clones. The results show that there are significant differences in growth and morphological characteristics among the 13 clones, but no significant differences in the contents of crude protein and crude fibers in the leaves (p> 0.05). Height and basal diameter growth of clones B and G were recorded as the fastest, while clone H1 was the slowest. Clone H2 had the largest leaflets, three times as large as other clones, while K4 had the heaviest dry weight per 100 leaflets because of its thick leaves. The 13 clones can be divided into four classes based on the number of leaflets per compound leaf, ie, 1-3, 13-17, 15-23 and 21-25. There were significant differences in thorn size: H2, with the largest leaflets had the smallest thorns. While of course all clones produced roots, there were significant differences; clones 2N, K5 and B had many adventitious roots, while clones K3, K4 and H1 had few. Correlation between content of crude protein and (length × width of leaf ) was positive (p <0.05), while correlations of the content of crude protein, with the number of leaflets per compound leaf, petiole length of compound leaf and thorn length were negative (p <0.01). Plant height and basal diameter were correlated with each other (p <0.01) and negatively correlated with base width of thorns (p <0.05).
其他文献
近年来,随着电子支付手段的普及,销售企业一线经营网点的现金收款量呈逐渐下降趋势,但上门收款的押运清分成本仍逐年上涨.为创新降费增效新模式,中石化广东石油深圳分公司积
期刊
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
城市房屋拆迁活动是我国特有的一项法律制度,它在我国现阶段城市化进程中起着十分重要的作用,但同时也成为一种社会矛盾激化的诱因。城市房屋拆迁从本质上来说是国家对城市房屋
本文写作的学术目的在于通过案例分析和实证研究,探究影响各国参加全球性公共问题领域内国际合作的因素。作者认为,当国际公共问题领域内集体利益本身不足以吸引各国顺利达成新
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
在我的记忆里有这样一个地方,它比洁白无瑕的璞玉更加纯洁,比晶莹剔透的珍珠更加璀璨,比拔地而起的楼房更加高大--它就是我的故乡,我的“天堂”--张江.虽然我们已经整体规划
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
期刊
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
本文是一篇关于商事登记的法律效力方面的文章。笔者试图运用比较法学等研究方法,对商事登记的法律效力进行了系统地研究。笔者在阐述了商事登记制度基本问题的基础上,结合具体
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥