|Table of Contents|

Effects of Prohexadione Calcium on Growth，Physiology and Biochemistry of Trollius chinensis Seedlings

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2023年09
Page:
104-111
Research Field:
Publishing date:

Info

Title:
Effects of Prohexadione Calcium on Growth，Physiology and Biochemistry of Trollius chinensis Seedlings
Author(s):
ZHANG Qing1; WANG Ruyi1; LI Jiaqiu2; ZHANG Qin1
(1.College of Landscape Architecture and Tourism，Hebei Agricultural University，Baoding，Hebei 071000；2.Forestry College，Hebei Agricultural University，Baoding，Hebei 071000)
Keywords:
Trollius chinensis seedlings; prohexadione calcium; physiological and biochemical; chlorophyll fluorescence parameter
PACS:
-
DOI:
10.11937/bfyy.20223351
Abstract:
Taking T.chinensis seedlings as test materials，the effects of different concentrations of prohexadione calcium (Pro-Ca) on the growth，physiological and biochemical characteristics，photosynthesis and chlorophyll fluorescence of T.chinensis seedlings were studied by foliar spraying,in order to explore the dwarfing regulation technology and mechanism of Trollius chinensis.The results showed that T.chinensis seedlings were dwarfed obviously after spraying prohexadione calcium on the leaves，and 300 mg?L-1 prohexadione calcium had the best dwarfed effect.At 40 days，the plant height，leaf length and leaf width were reduced by 30.71%，31.28% and 31.58%，respectively，which were significantly different from those of CK (P<0.05).Moreover，the antioxidant enzyme activity of the leaves of T.chinensis were significantly increased，and the chlorophyll fluorescence parameters such as Fv/Fm and Fv/Fo were improved，which increased the photosynthetic rate and promoted the strong growth of the seedlings.Therefore，it could be used as the optimal spraying concentration for dwarf control of T.chinensis.

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Last Update: 2023-06-07