|Table of Contents|

Activities Change of Three Enzymes of Two Climbing Roses Cultivars in Cutting Propagation

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2018年02
Page:
97-103
Research Field:
Publishing date:

Info

Title:
Activities Change of Three Enzymes of Two Climbing Roses Cultivars in Cutting Propagation
Author(s):
ZHAO Yanrong; LI Zongyan; WANG Jin
School of Landscape Architecture,Sowthwest Forestry University,Kunming,Yunnan 650224
Keywords:
climbing rose; cutting; POD; PPO; IAAO
PACS:
-
DOI:
10.11937/bfyy.20171389
Abstract:
In order to compare the rooting difference under the different treatments,an orthogonal design was carried out to analyze the rooting effects of combinations by the mediums type,hormone kinds and different concentrations.Meanwhile,the change of physiological indexes,which involved three enzymes of POD,IAAO,PPO,and their correlations with the rooting rate were detected at the rooting process.The results indicated that the rooting rates of ‘Alchymist’ could reach to 86 67% under this formula（200 mg?L-1 ABT,yellow soil∶sand=1∶1).However,‘Handel’ had the highest rooting rate of 96 67% with this combination（200 mg?L-1 IBA，yellow soil∶humus soil=1∶1).The tendency of POD activity was kept up-down-up-down in testing period.The POD activity maintained increasingly at the callus formation stage and had positively affected on the rooting rate.‘Alchymist’ obtained the highest rooting rate when its activity dramatically increased to 363 96% to get the maximum value.Moreover,the PPO activity had a up-down tread in the rooting stage.The PPO activity had constantly increased in the process of adventitious roots and had positively affected on the rooting rate.The activity was the highest in the best treatment of rooting rate,which reached 661 432% for ‘Handel’.However,the tendency of IAAO activity was down-up-down for both.The declining rate of IAAO activity was directly proportional to the rooting effect.Additionally,activity of POD and PPO had positively correlated with the rooting effect,but it had a negative correlation with the activity of IAAO.The correlation coefficients between the rooting rate and three physiological indexes were listed as followed,0 664（PPO）＞0 606（POD）＞0 463（IAAO）.

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Last Update: 2018-01-26