[1]李霞,凌霄,王良桂*.空气控根栽培对金桂生长及其生理生化指标的影响[J].江苏林业科技,2021,48(03):13-18.[doi:10.3969/j.issn.1001-7380.2021.03.004]
 Li Xia,Ling Xiao,Wang Lianggui*.Effects of root confinement cultivation on growth and physiological indexes of Osmanthus fragrans[J].Journal of Jiangsu Forestry Science &Technology,2021,48(03):13-18.[doi:10.3969/j.issn.1001-7380.2021.03.004]
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空气控根栽培对金桂生长及其生理生化指标的影响()
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《江苏林业科技》[ISSN:1001-7380/CN:32-1236/S]

卷:
第48卷
期数:
2021年03期
页码:
13-18
栏目:
试验研究
出版日期:
2021-06-30

文章信息/Info

Title:
Effects of root confinement cultivation on growth and physiological indexes of Osmanthus fragrans
文章编号:
1001-7380(2021)03-0013-06
作者:
李霞1 凌霄2王良桂3*
1.江苏农牧科技职业学院园林园艺学院,江苏 泰州 225300;
2.无锡市城市管理局,江苏 无锡 214000;
3.南京林业大学风景园林学院,江苏 南京 210037
Author(s):
Li Xia1Ling Xiao2Wang Lianggui3*
1.Landscape and Horticulture College,Jiangsu Agri-animal Husbandry Vocational College,Taizhou 225300,China;
2. Wuxi City Administration Bureau, Wuxi 214000,China;
3. Nanjing Forestry University, Nanjing 210037,China
关键词:
空气控根金桂生理指标PODSOD光合速率
Keywords:
Root confinement cultivationOsmanthus fragrans Var. thunbergiiPhysiological indexPODSODPhotosynthetic rate
分类号:
Q945.1;Q946;S685.13
DOI:
10.3969/j.issn.1001-7380.2021.03.004
文献标志码:
A
摘要:
研究空气控根栽培对金桂生长及相关生理指标的影响,为金桂的栽培生产提供借鉴。应用新型K2空气控根容器于2020年对7年生金桂嫁接苗进行栽培,测定金桂生长相关指标,包括光合参数,POD,SOD活性,可溶性蛋白含量,可溶性糖,叶绿素含量。结果表明:在金桂的年生长周期内,控根组与对照组苗高之间、冠幅之间,差异不显著,而控根组根系指标得到了显著提高;控根栽培苗的光合速率、蒸腾速率、气孔导度均高于地栽苗(CK),且分别增长了11.96%,9.57%,8.93%,9.84%。控根栽培苗的叶片POD活性、SOD活性、可溶性蛋白、可溶性糖、叶绿素含量比CK增长了39.23%,27.27%,18.00%,6.95%,27.46%。相关性分析发现,根长、根系体积、根系表面积与叶片的可溶性糖、可溶性蛋白、总叶绿素含量、光合速率极显著相关(P<0.01)。空气控根容器能显著提高金桂的光合性能及生理活性,增加光合同化产物的积累,提高苗木质量。
Abstract:
To study the effects of root confinement cultivation on the growth and related physiological indexes of Osmanthus fragrans, and provide a reference for the cultivation, the 7-year-old grafted seedlings were cultivated in a new K2 root confinement container in 2020. Several months later, the growth related indexes were determined, including photosynthetic parameters,POD and SOD activities, soluble protein content, soluble sugar and chlorophyll content. The results showed that, in the annual growth cycle, the photosynthetic rate, transpiration rate and stomatal conductance of the seedlings by root confinement cultivation were higher than those of the seedlings (CK) by common cultivation, increased by 11.96%, 9.57%, 8.93% and 9.84% respectively. Compared with CK, POD activity, SOD activity, soluble protein, soluble sugar and chlorophyll content in leaves of root confinement seedlings increased by 39.23%, 27.27%, 18.00%, 6.95% and 27.46%. Correlation analysis showed that root length, root volume and root surface area were extremely significantly correlated with soluble sugar, soluble protein, total chlorophyll content and photosynthetic rate (P<0.01). We concluded that root confinement cultivation could significantly improve the photosynthetic performance and other physiological activity, increase the accumulation of photosynthate, and improve the quality of seedlings.

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备注/Memo

备注/Memo:
收稿日期:2021-03-05;修回日期:2021-04-08
基金项目:国家自然科学基金面上项目“OfbHLH82转录因子调控桂花花香核心挥发物芳樟醇合成的机制研究”(32071828)
作者简介:李霞(1983- ),女,江苏泰州人,讲师,硕士。主要从事园林植物与观赏园艺研究工作。E-mail:153074983@qq.com。
*通信作者:王良桂(1962- ),男,安徽寿县人,教授,博士。从事植物栽培应用、园林工程管理等工作。
更新日期/Last Update: 2021-08-07