Defoliation of chrysanthemum (Chrysanthemum morifolium Ramat) cv. Reagan Sunny for improved flowering and cut flower quality

The effects of different levels of defoliation i.e. 0 (control), 20, 40, 60 and 80% at visible floral bud stage on growth, flowering and cut flower quality of chrysanthemum (Chrysanthemum morifolium) cv. Reagan Sunny were investigated. Plant height was only reduced by 5% at the highest level of defo...

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Main Authors: Sandrang, Ab Kahar, Tengku Muda Mohamed, Mahmud, Salleh, Sakinah
Format: Article
Language:English
Published: Malaysian Agricultural Research and Development Institute (MARDI) 2005
Online Access:http://psasir.upm.edu.my/id/eprint/48941/
http://psasir.upm.edu.my/id/eprint/48941/1/Defoliation%20of%20chrysanthemum%20%28Chrysanthemum%20morifolium%20Ramat%29%20cv.%20Reagan%20Sunny%20for%20improved%20flowering%20and%20cut%20flower%20quality.pdf
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author Sandrang, Ab Kahar
Tengku Muda Mohamed, Mahmud
Salleh, Sakinah
author_facet Sandrang, Ab Kahar
Tengku Muda Mohamed, Mahmud
Salleh, Sakinah
author_sort Sandrang, Ab Kahar
building UPM Institutional Repository
collection Online Access
description The effects of different levels of defoliation i.e. 0 (control), 20, 40, 60 and 80% at visible floral bud stage on growth, flowering and cut flower quality of chrysanthemum (Chrysanthemum morifolium) cv. Reagan Sunny were investigated. Plant height was only reduced by 5% at the highest level of defoliation, whereas the stem diameter was not affected. The time of floral bud break (showing colour), was delayed as level of defoliation increased. However, time of floral bud break within a plant was more synchronised. The spray diameter was reduced and vase life was increased by defoliation up to 60%. Both contributed to better cut flower quality. Other quality parameters such as flower size and stem diameter were not markedly affected. Total fresh and dry weights were linearly decreased with level of defoliation. There was a change in dry matter distribution, in which more dry matter was partitioned to the structural parts i.e. the stems and flower stalks as level of defoliation increased. There was no change on dry matter partitioning to flowers by defoliation. Defoliation at 60% can be the compromised level for cv. Reagan Sunny grown under high temperature environment.
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institution Universiti Putra Malaysia
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language English
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publisher Malaysian Agricultural Research and Development Institute (MARDI)
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spelling upm-489412016-12-30T02:25:53Z http://psasir.upm.edu.my/id/eprint/48941/ Defoliation of chrysanthemum (Chrysanthemum morifolium Ramat) cv. Reagan Sunny for improved flowering and cut flower quality Sandrang, Ab Kahar Tengku Muda Mohamed, Mahmud Salleh, Sakinah The effects of different levels of defoliation i.e. 0 (control), 20, 40, 60 and 80% at visible floral bud stage on growth, flowering and cut flower quality of chrysanthemum (Chrysanthemum morifolium) cv. Reagan Sunny were investigated. Plant height was only reduced by 5% at the highest level of defoliation, whereas the stem diameter was not affected. The time of floral bud break (showing colour), was delayed as level of defoliation increased. However, time of floral bud break within a plant was more synchronised. The spray diameter was reduced and vase life was increased by defoliation up to 60%. Both contributed to better cut flower quality. Other quality parameters such as flower size and stem diameter were not markedly affected. Total fresh and dry weights were linearly decreased with level of defoliation. There was a change in dry matter distribution, in which more dry matter was partitioned to the structural parts i.e. the stems and flower stalks as level of defoliation increased. There was no change on dry matter partitioning to flowers by defoliation. Defoliation at 60% can be the compromised level for cv. Reagan Sunny grown under high temperature environment. Malaysian Agricultural Research and Development Institute (MARDI) 2005 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/48941/1/Defoliation%20of%20chrysanthemum%20%28Chrysanthemum%20morifolium%20Ramat%29%20cv.%20Reagan%20Sunny%20for%20improved%20flowering%20and%20cut%20flower%20quality.pdf Sandrang, Ab Kahar and Tengku Muda Mohamed, Mahmud and Salleh, Sakinah (2005) Defoliation of chrysanthemum (Chrysanthemum morifolium Ramat) cv. Reagan Sunny for improved flowering and cut flower quality. Journal of Tropical Agriculture and Food Science, 33 (2). pp. 169-175. ISSN 1394-9829; ESSN: 2289-9650 http://ejtafs.mardi.gov.my/index.php/publication/issues/archive/69-2005/volume-33-no2/836-330203
spellingShingle Sandrang, Ab Kahar
Tengku Muda Mohamed, Mahmud
Salleh, Sakinah
Defoliation of chrysanthemum (Chrysanthemum morifolium Ramat) cv. Reagan Sunny for improved flowering and cut flower quality
title Defoliation of chrysanthemum (Chrysanthemum morifolium Ramat) cv. Reagan Sunny for improved flowering and cut flower quality
title_full Defoliation of chrysanthemum (Chrysanthemum morifolium Ramat) cv. Reagan Sunny for improved flowering and cut flower quality
title_fullStr Defoliation of chrysanthemum (Chrysanthemum morifolium Ramat) cv. Reagan Sunny for improved flowering and cut flower quality
title_full_unstemmed Defoliation of chrysanthemum (Chrysanthemum morifolium Ramat) cv. Reagan Sunny for improved flowering and cut flower quality
title_short Defoliation of chrysanthemum (Chrysanthemum morifolium Ramat) cv. Reagan Sunny for improved flowering and cut flower quality
title_sort defoliation of chrysanthemum (chrysanthemum morifolium ramat) cv. reagan sunny for improved flowering and cut flower quality
url http://psasir.upm.edu.my/id/eprint/48941/
http://psasir.upm.edu.my/id/eprint/48941/
http://psasir.upm.edu.my/id/eprint/48941/1/Defoliation%20of%20chrysanthemum%20%28Chrysanthemum%20morifolium%20Ramat%29%20cv.%20Reagan%20Sunny%20for%20improved%20flowering%20and%20cut%20flower%20quality.pdf