|Table of Contents|

Effects of the Exogenous Gibberellin and 6-Benzylaminopurine on Flowering of Cymbidium sinense

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2021年21
Page:
64-71
Research Field:
Publishing date:

Info

Title:
Effects of the Exogenous Gibberellin and 6-Benzylaminopurine on Flowering of Cymbidium sinense
Author(s):
LI Tengji1HUANG Jiexian1FU Zhihui2HUANG Ziqin1ZHANG Jianxia1
(1.College of Forestry and Landscape Architecture,South China Agricultural University/Key Laboratory of Forest Plant Germplasm Innovation and Utilization in Guangdong,Guangzhou,Guangdong 510642;2.College of Construction Engineering, Guangdong Engineering Polytechinc College, Guangzhou, Guangdong 510520)
Keywords:
Cymbidium sinensegibberellin6-benzylaminopurineflowering physiologyflowering qualityflowering regulation
PACS:
-
DOI:
10.11937/bfyy.20211695
Abstract:
The effects of GA3 and 6-BA on flowering physiology and flowering quality were studied by spraying single GA3,6-BA or their mixture in the early stage of flower bud differentiation of Cymbidium sinense cultivar ‘Qijian Baimo’,in order to provide the practical technical guidance for flowering regulation of Cymbidium sinense.The results showed that,1) Compared with the control,spraying 50 mg·L-1 GA3 or 100 mg·L-1 6-BA could effectively increase the contents of soluble protein,soluble sugar,starch and POD activity in leaves during flower development.2) Compared with the control,the treatment of single 6-BA or GA3 could advance the initial flowering time and prolong the flowering time.In addition,single 6-BA treatment could promote the flower bud differentiation and increase the number of flower buds significantly,but inhibit the height of pedicel,and the florets were aborted seriously.Single GA3 treatment could obviously promote the height and diameter of the pedicel,and increase the size of sepals and flowers.3) Compared with the single hormone treatment,the effect was more obvious when sprayed with the mixture of 6-BA and GA3.The mixture treatment could not only increase the content of the physiological index during flower development.Moreover,it could promote flower bud differentiation and increase the number of flower buds,make the pedicels stronger,promote flowering and prolong flowering time,increase the size of sepals.The mixture treatment improve the flowering and ornamental quality of Cymbidium sinense.

References:

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Last Update: 2022-01-14