| 环割油茶树春梢性状与根叶养分相关性分析 |
| |
| 引用本文： | 谢双岭,江春艳,刘洲莹,王毓曼,程离,任志华,张运煜,陈晓,胡冬南.环割油茶树春梢性状与根叶养分相关性分析[J].安徽农业大学学报,2024,51(2):183-190. |
| |
| 作者姓名： | 谢双岭 江春艳 刘洲莹 王毓曼 程离 任志华 张运煜 陈晓 胡冬南 |
| |
| 作者单位： | 江西农业大学林学院森林培育重点实验室，南昌330045;宜春市袁州区林业局，宜春336018;柳州市园林科学研究所，柳州 545000 |
| |
| 基金项目： | 国家自然科学基金项目(32060362)和江西省科技厅创新项目（创新专项〔2021〕02号）共同资助。 |
| |
| 摘 要： | 为了研究环割对油茶春梢萌发期营养生长及养分调控的影响及养分与春梢生长特性的关系，以7年生无性系油茶为材料，进行360°环割、180°环割和不环割3种不同环割量试验，于环割口愈合前后分别测定叶、根有机及无机养分，调查春梢叶片表型、新梢长度及粗度等性状特性指标，并进行相关性分析，阐明油茶春梢生长与养分之间的关系。研究结果表明：（1）360°环割抑制了春梢生长，使单叶面积、新梢长度和粗度分别降低了9.47%、24.12%和20.55%，而180°环割对春梢生长影响不明显；（2）环割口愈合前，环割对油茶叶片氮的积累有抑制作用，对叶片磷、钾含量及根系氮、磷、钾的积累均有促进作用，环割口愈合后，环割对根、叶磷的积累影响不明显，但对氮、钾积累的抑制或促进作用仍然存在；（3）360°环割能明显促进油茶春梢叶片对可溶性淀粉和可溶性蛋白的积累，抑制春季叶片中的可溶性糖、可溶性淀粉和可溶性蛋白向根系运输；（4）油茶冬、春季叶片中氮、磷含量越高越有利于春梢生长，冬、春季根中氮、磷、钾养分含量高则始终不利于春梢生长，而春梢生长差会进一步影响根系有机营养的积累。可见环割促进了油茶叶片对磷、钾的积累，抑制了叶片对氮...
|
| 关 键 词： | 环割 春梢 养分 油茶 相关性 |
Correlation analysis between spring shoot characters and root leaf nutrients of Camellia lieifera Abel. by girdling treatments |
| |
| XIE Shuangling,JIANG Chunyan,LIU Zhouying,WANG Yuman,CHENG Li,REN Zhihu,ZHANG Yunyu,CHEN Xiao,HU Dongnan.Correlation analysis between spring shoot characters and root leaf nutrients of Camellia lieifera Abel. by girdling treatments[J].Journal of Anhui Agricultural University,2024,51(2):183-190. |
| |
| Authors: | XIE Shuangling JIANG Chunyan LIU Zhouying WANG Yuman CHENG Li REN Zhihu ZHANG Yunyu CHEN Xiao HU Dongnan |
| |
| Institution: | Key Laboratory of Silviculture, College of Forestry, Jiangxi Agricultural University, Nanchang 330045;Forestry Bureau of Yuanzhou District, Yichun 336018;Liuzhou Institute of Landscape Architecture, Liuzhou 545000 |
| |
| Abstract: | To study the effects of girdling on the vegetative growth and nutrient regulation of spring shoots of Camellia lieifera during germination and the relationship between nutrients and economic characteristics of spring shoots, in this experiment, the organic and inorganic nutrients in the leaves and roots of C. oleifera were measured before and after germination of spring shoots, the leaf phenotype, length of spring shoots and diameter of spring shoots were investigated, and the correlation analysis was carried out to clarify the relationship between the growth of spring shoots of C. oleifera and nutrients. The results showed that: (1) 360° girdling inhibited the growth of spring shoot and reduced the single leaf area, shoot length and shoot diameter by 9.47%, 24.12% and 20.55%, respectively, while 180° girdling had no obvious effect on the growth of spring shoot; (2) Before girdling healing, girdling inhibited the accumulation of nitrogen in the leaves, and promoted the contents of phosphorus and potassium in the leaves and the accumulation of nitrogen, phosphorus and potassium in the roots. After girdling healing, the effect of girdling on the accumulation of phosphorus in the roots and leaves was not obvious, but the effect of inhibiting or promoting the accumulation of nitrogen and potassium still existed; (3) 360° girdling could significantly promote the accumulation of soluble starch and soluble protein in spring shoots of the leaves, and inhibit the transport of soluble sugar, starch and soluble protein to the roots in spring leaves; (4) The higher the contents of nitrogen and phosphorus in the |
| |
| Keywords: | girdling spring shoots nutrients C oleifera correlation |
|
| 点击此处可从《安徽农业大学学报》浏览原始摘要信息 |
| 点击此处可从《安徽农业大学学报》下载免费的PDF全文 |
|
