Changes of growth regulators of Camellia sinensis （L.） Kuntze var.niaowangensis Q.H.Chen under low temperature stress in Guizhou

doi:10.14088/j.cnki.issn0439-8114.2020.08.022

Abstract

Abstract: To understand the changes of growth regulators in tea plant [Camellia sinensis （L.） Kuntze var.niaowangensis Q.H.Chen] under the different low-temperature in Guizhou province, one-year-old tea plants of the cultivar were used as the material and the changes of growth regulators content were determined by enzyme-linked immunosorbent assay （ELISA）. Compared to the control, Camellia sinensis （L.） Kuntze var.niaowangensis Q.H.Chen mostly exhibited lower contents in IAA、GA, and ABA content,ABA/GA were higher than control under the 4 ℃and 1 ℃ treatment. While mostly contents of ABA、IAA、GA were significantly higher than control and ABA/GA was no significant change in the 10 ℃ treatment. With the increase of stress time, the content of ABA and IAA increased first and then decreased with the change of time, the content of GA decreased, the ratio of ABA/GA increased, and the content of ABA and GA increased first and then decreased at 10 ℃, the content of IAA decreased. Under low temperature, Camellia sinensis （L.） Kuntze var.niaowangensis Q.H.Chen can improve the growth inhibiting substance such as ABA and reduce the growth promoting substances such as IAA and GA, in order to adjust the endogenous hormonesbalance in plants to cope with low temperatures.

Key words: Camellia sinensis （L.） Kuntze var.niaowangensis Q.H.Chen, low temperature stress, growth regulator

CLC Number:

WANG Ying, LI Yan, WANG Shu, XIANG Zhun, ZHAO De-gang. Changes of growth regulators of Camellia sinensis （L.） Kuntze var.niaowangensis Q.H.Chen under low temperature stress in Guizhou[J]. HUBEI AGRICULTURAL SCIENCES, 2020, 59(8): 99-102.

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