Pruning impacts on rot-shoot growth, biochemical and physiological changes of bougainvillea glabra

Saifuddin, M. and Jahirul, M.I. and Moneruzzaman, K.M. and Sattar, M.A. and Osman, N. and Hossain, A.B.M.S. (2010) Pruning impacts on rot-shoot growth, biochemical and physiological changes of bougainvillea glabra. Australian Journal of Crop Science, 4 (7). pp. 530-537. ISSN 1835-2693

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Abstract

The effects of different pruning on Bougainvillea plants was studied focusing on chlorophyll a & b, quantum yield, sugar content, biomass, stomatal conductance, and flowering process factors. Results on frequent pruning of Bougainvillea glabra plants gave the highest quantum yield, chlorophyll a and b, and maximum flower initiation per plant compared to those of non-pruning plants. Though the sugar content in pruned plants decreased, probably due to the prolonged vegetative phase, flowering process continues and developed new flower shoots. Minimum branch fresh weight and low potassium content were observed in complete pruning plants. The observations also indicated that different pruning treatments modify the root and shoot initiation, which affects the physiological and biochemical content of plants. In the case of the completed pruning, plant maintain a minimum shoot growth rate due to the low availability of potassium, sugar nutrient and lower root growth. Tertiary branch initiation was found to be more effective in the non-pruning condition. The above findings have given a better understanding of the effects of different pruning on the growth and development of the Bougainvillea glabra. Hence, it is suggested that frequent pruning can be used to maintain plant growth and flower shoot initiation.

Item Type: Article
Additional Information: Institute of Biological Sciences, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA
Uncontrolled Keywords: Bougainvillea; Pruning; Chlorophyll; Ornamental Plants; Greenhouse Gases; Pollutants; Shoots (Botany); Roots (Botany) -- Growth
Subjects: Q Science > Q Science (General)
Q Science > QH Natural history > QH301 Biology
Divisions: Faculty of Science > Institute of Biological Sciences
Depositing User: Miss Malisa Diana
Date Deposited: 02 Jul 2013 01:45
Last Modified: 26 Dec 2014 02:51
URI: http://eprints.um.edu.my/id/eprint/6262

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