Promotion Effects of Taxus chinensis var. mairei on Camptotheca acuminata Seedling Growth in Interplanting Mode
Promotion Effects of Taxus chinensis var. mairei on Camptotheca acuminata Seedling Growth in Interplanting Mode
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红豆杉的促进作用
DOI：
10.3390/f13122119
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发表时间：
2022-12
期刊：
影响因子：
2.9
通讯作者：
Chunying Li
中科院分区：
文献类型：
--
作者：
Chunjian Zhao;Sen Shi;Naveed Ahmad;Yinxiang Gao;Chunguo Xu;Jiajing Guan;Xiaodong Fu;Chunying Li
野生喜树（Camptotheca acuminata Decne）。acuminata）资源正变得濒危并且面临不良生长。初步调查结果表明，C.在南方红豆杉人工混交林中，mairei（Lemee et Levl.），Cheng et L. K. Fu（T.中国变种mairei）和C. acuminata显著高于纯林。了解上述差异的原因有助于创建T.中国变种mairei和C. acuminata，以解决C. acuminata资源本研究对两种不同种植模式（C. acuminata/T.中国变种间作和单作的珍珠棉acuminata幼苗）进行比较。结果表明，在不同的生长时期，不同品种的株高、地径、光合速率和叶绿素含量均显著高于对照。间作模式下的刺槐产量高于单作模式。与单作相比，间作植株的株高和地径生长速率分别提高了25%和40%。不同光照强度下，套作幼苗的光合速率均高于单作幼苗。叶绿素a、B和总叶绿素含量分别是单作的1.50、1.59和1.47倍。细菌和真菌的数量在间作中高于单作。并通过扩增子测序法分析了不同种植模式下微生物多样性的差异。间作处理土壤酶活性高于单作处理。在4 ~ 9月间作模式下，紫杉烷化感物质含量在0.01-0.67 μg/g之间。T.中国变种mairei可以增加C.通过提高酶活性、改变微生物种群结构和释放化感物质等途径，提高了间作模式下的尖叶百合幼苗的光合速率。
Wild Camptotheca acuminata Decne (C. acuminata) resources are becoming endangered and face poor growth. Preliminary investigation results found that the growth of C. acuminata in an artificial mixed forest of Taxus chinensis var. mairei(Lemee et Levl.), Cheng et L. K. Fu (T. chinensis var. mairei) and C. acuminata was significantly higher than that in pure forests. Understanding the reasons for the above differences can help create a mixed forest of T. chinensis var. mairei and C. acuminata to solve the problem of depleting C. acuminata resources. In this study, the growth and soil indexes under two different modes (C. acuminata/T. chinensis var. mairei interplanted and monocultured C. acuminata seedlings) were compared. The results showed that plant height, basal diameter, photosynthesis rate and chlorophyll content of C. acuminata under the interplanting mode were higher than those under monoculture. The growth rates of plant height and basal diameter that were calculated from interplanted specimens increased by 25% and 40%, respectively, compared with those from specimens that were monocultured. Photosynthetic rates from different light intensities under interplanting were higher than those in seedlings under monoculture. The contents of chlorophylls a and b and total chlorophyll under interplanting were 1.50, 1.59, and 1.47 times higher than those under monoculture, respectively. The numbers of bacteria and fungi in the interplanted culture were higher than those in the monoculture. Furthermore, the differences in microbial diversity under different planting modes were analyzed via the amplicon sequencing method. Soil enzyme activities increased under interplanting compared with that in the monoculture. Taxane allelochemicals were detected in the range of 0.01–0.67 μg/g in the interplanting mode from April to September. T. chinensis var. mairei may increase the establishment and productivity of C. acuminata seedlings under interplanting mode through improvements in enzyme activity, changes in microorganism population structure, and release of allelochemicals.
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影响因子：
5.6
作者：
Ali, Ahmad;Ghani, Muhammad Imran;Iqbal, Muhammad
通讯作者：
Iqbal, Muhammad
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影响因子：
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作者：
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通讯作者：
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影响因子：
4.5
作者：
Thompson AR;Roth-Monzón AJ;Aanderud ZT;Adams BJ
通讯作者：
Adams BJ
影响因子：
2.2
作者：
R. Vicuña;B. González
通讯作者：
R. Vicuña;B. González
影响因子：
5.6
作者：
Ghani, Muhammad Imran;Ali, Ahmad;Cheng, Zhihui
通讯作者：
Cheng, Zhihui