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Control of poinsetiia (Euphorbia pulcherrima var. 'Ecke's red') vegetative and reproductive growth by difference between day and night temperature.


Citation

Abdullah, Thohirah Lee and Abdul Rahman, Asiah and Abd. Rahim, Anuar and A., Khairul N. (2001) Control of poinsetiia (Euphorbia pulcherrima var. 'Ecke's red') vegetative and reproductive growth by difference between day and night temperature. In: 12th Malaysian Society of Plant Physiology Conference 2001, 29 Sep. 2001, The Mines Resort Hotel, Seri Kembangan, Selangor. (pp. 63-67).

Abstract

Euphorbia pulcherrima var. Ecke's Red were grown under three difference between day and night temperature (DIP) from the start of short days until flowering. DIF had a significantly effect on vegetative growth (plant height, number of internodes, and internode length) and reproductive growth (number of days to visible bract color, number of bracts and bract diameter). Plant height were lower when the plants were grown at negative DIF. Negative DIF produced the shortest plant (24.00 em) while natural DIF gave the tal/est plant (41.00 em). The shorter plant height was a result of a lower number of internodes and shorter internode length. Positive DIF grown plants resulted in earliest visible bract color (49 days) fol/owed by negative DIF (55 days) and natural DIF (85 days). Positive DIF also gave the highest number of bracts (90.00) and diameter of bracts(30.40 em). No negative influence was observed on the quality of the plants.


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Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Agriculture
Notes: Full text are available at Special Collection Division Office.
Keywords: Poinsettia (Euphorbia pulcherrima var. 'ecke's red); Plants; Reproductive growth.
Depositing User: Erni Suraya Abdul Aziz
Date Deposited: 05 Feb 2014 00:49
Last Modified: 18 Nov 2014 07:42
URI: http://psasir.upm.edu.my/id/eprint/27195
Statistic Details: View Download Statistic

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