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On-line Access: 2012-01-18

Received: 2010-12-08

Revision Accepted: 2011-04-24

Crosschecked: 2011-10-18

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Journal of Zhejiang University SCIENCE B 2012 Vol.13 No.2 P.136-144

http://doi.org/10.1631/jzus.B1000425


Chlorocholine chloride and paclobutrazol treatments promote carbohydrate accumulation in bulbs of Lilium Oriental hybrids ‘Sorbonne’


Author(s):  Ri-ru Zheng, Yun Wu, Yi-ping Xia

Affiliation(s):  Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310029, China; more

Corresponding email(s):   ypxia@zju.edu.cn

Key Words:  Carbohydrate, Chlorocholine chloride, Gibberellic acid, Lilium Oriental hybrids ‘, Sorbonne’


Ri-ru Zheng, Yun Wu, Yi-ping Xia. Chlorocholine chloride and paclobutrazol treatments promote carbohydrate accumulation in bulbs of Lilium Oriental hybrids ‘Sorbonne’[J]. Journal of Zhejiang University Science B, 2012, 13(2): 136-144.

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author="Ri-ru Zheng, Yun Wu, Yi-ping Xia",
journal="Journal of Zhejiang University Science B",
volume="13",
number="2",
pages="136-144",
year="2012",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.B1000425"
}

%0 Journal Article
%T Chlorocholine chloride and paclobutrazol treatments promote carbohydrate accumulation in bulbs of Lilium Oriental hybrids ‘Sorbonne’
%A Ri-ru Zheng
%A Yun Wu
%A Yi-ping Xia
%J Journal of Zhejiang University SCIENCE B
%V 13
%N 2
%P 136-144
%@ 1673-1581
%D 2012
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.B1000425

TY - JOUR
T1 - Chlorocholine chloride and paclobutrazol treatments promote carbohydrate accumulation in bulbs of Lilium Oriental hybrids ‘Sorbonne’
A1 - Ri-ru Zheng
A1 - Yun Wu
A1 - Yi-ping Xia
J0 - Journal of Zhejiang University Science B
VL - 13
IS - 2
SP - 136
EP - 144
%@ 1673-1581
Y1 - 2012
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.B1000425


Abstract: 
The present study was to test the hypothesis that the plant growth retardants chlorocholine chloride (CCC) and paclobutrazol (PBZ) could improve the carbohydrate accumulation in lily bulbs by enhancing photosynthetic capacity and changing endogenous hormones. Plants of Lilium Oriental hybrids ‘;sorbonne’; were treated with a foliar spray of CCC or PBZ (both at 300 mg/L) solution, at six weeks after planting (6 WAP). The morphological parameters, endogenous hormone contents (gibberellic acid (GA), abscisic acid (ABA), and indole-3-acetic acid (IAA)), and carbohydrate contents were measured from 6 to 18 WAP, at 2-week intervals. The results showed that CCC increased the biomass of leaves and stems which might produce more photoassimilates available for transportation and utilization. However, PBZ treatment suppressed vegetative growth and favored photoassimilate transportation into bulbs. A slight delay of bud and anthesis formation was observed in both treated plants. CCC and PBZ treatments substantially enhanced the sucrose contents in leaves probably due to the increase of chlorophyll contents. Treatment with CCC or PBZ decreased GA but increased IAA contents in lily bulbs which might stimulate starch accumulation and formation of new scales. Our experiment suggested that CCC or PBZ treatment is an effective method to promote carbohydrate accumulation in lily bulbs.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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