|Table of Contents|

Effects of High Temperature Stress on Physiological-biochemical of  Rhododendron hybridum

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2018年08
Page:
102-105
Research Field:
Publishing date:

Info

Title:
Effects of High Temperature Stress on Physiological-biochemical of  Rhododendron hybridum
Author(s):
FEI Zhaoxue1; LIU Lili1; HU Die1; HOU Na2
(1.Academy of Forestry,Northwest A & F University,Yangling,Shaanxi 712100;2.Guizhou Academy of Forestry,Guiyang,Guizhou 550005)
Keywords:
Rhododendron hybridum; high temperature stress; physiological and biochemical index; heat resistance
PACS:
-
DOI:
10.11937/bfyy.20172920
Abstract:
Three-old-year Rhododendron hybridum  ‘fenzhenzhu’ seedling was taken as test materials,the heat tolerance of R.hybridum and some relative physiological indices were determined and analyzed under the stress conditions of 22 ℃/14 ℃(14 h/10 h),30 ℃/22 ℃(14 h/10 h) and 38 ℃/30 ℃(14 h/10 h) for 4 days.The results showed that at 30 ℃ and 38 ℃,the both stresses led to serious varing degrees damage,and the injury caused by the stress of 38 ℃ was worse than that 30 ℃.Chlorophyll content was increased with the rise of temperature;content of MDA decreased at 30 ℃ light stress condition and increased at heavy stress condition 38 ℃,while the activity of SOD increased at 30 ℃ and decreased at 38 ℃.It indicated that R.hybridum ‘fenzhenzhu’ had a certain heat resistance and the suitable temperature growth was 22 ℃.

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Last Update: 2018-05-03