紫茎泽兰叶水提液对7种乡土植物幼苗生长和 叶绿素的化感影响

Subjects: Biology >> Botany >> Botany research, experiment, plant evolution & development submitted time 2018-06-25 Cooperative journals: 《广西植物》

刘济明1 陈敬忠1 孙运刚2 童炳丽1 管睿婷1 武梦瑶1

Abstract： The study investigated the allelopathic effects of aqueous extracts of Ageratina adenophora leaves on plant chlorophyll of 7 native species in China including Pinus massoniana , Cunninghamia lanceolata, Broussonetia papyifera, Castanea mollissima, Camellia oleifera, Zanthoxylum bungeanu and Pyracantha fortuneana. through five levels (30, 15, 5, 2.5, and 0 mg穖L-1) of treatment, After termination of the experiment, the contents of chlorophyll a and chlorophyll b in each of the 7 recipient plants were measured by the milling-ultraviolet spectrophotometer method, the parameters of seedling height, ground diameter, crown width and biomass were measured. Results showed: The effect of aqueous extracts from leaves of Ageratina adenophora on the chlorophyll content of 7 species of native plant seedlings showed no effect at low concentrations. High-concentration treatment had different effects on 7 Plant seedlings, Pinus massoniana showed an increase, while Camellia oleifera and Zanthoxylum bungeanu were not affected, while contents of chlorophyll a, chlorophyll b, and total chlorophyll of Cunninghamia lanceolata, Castanea mollissima, and Broussonetia papyiferaa were significantly decreased. Pyracantha fortuneana had only chlorophyll b decline.

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