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Temperature affects vegetative growth and flowering of coffee (Coffea arabica L.)

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Drinnan, J.E. and Menzel, C. M. (1995) Temperature affects vegetative growth and flowering of coffee (Coffea arabica L.). Journal of Horticultural Science, 70 (1). pp. 25-34. ISSN 0022-1589

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Article Link: https://doi.org/10.1080/14620316.1995.11515269


The effect of temperature was investigated on the vegetative growth and flowering of nine coffee cultivars (Catuai Rojo, Catuai, Caturra Amarillo, Caturra Rojo, Catimor, BMK, SL6, K7 and LB) grown in pots under glass. High day/night temperatures (33°/28° compared with 18°/13°, 23°/18° and 28°/23°C) accelerated stem extension and node production. Growth was greatest in cvs K7 and SL6 and lowest in cv. Caturra Rojo. Prolonged exposure to high temperatures of 33°/28°C accelerated leaf loss and induced a general decline in tree health. All cultivars showed rapid initial growth during summer and autumn, and slower growth during winter and spring under short days (<13 h) and low irradiances (<6.8 MJ m?2 d?1). Growth did not recover in spring and summer at the end of the experiment. Inflorescences were initiated mainly from April to September under photoperiods <12 h. More floral buds initiated at 23°/18°C and 18°/13°C than at 28°/23°C and no floral initiation occurred at 33°/28°C. Inflorescence development took 4?6 weeks at 28°/23° compared with 8?10 weeks at 23°/18° and 12?14 weeks at 18°/13°C. High temperatures also induced floral malformations. Cvs Catuai Rojo, Caturra Rojo and Caturra Amarillo had most inflorescences per node and cvs K7, BMK and LB fewest. Temperatures of 33°/28°C during summer will ensure maximum vegetative growth and potential number of flowering nodes. Temperatures of 23°/18°C during winter will ensure healthy and synchronized floral bud development and maximize the number of inflorescences per node.

Item Type:Article
Corporate Creators:Department of Agriculture and Fisheries, Queensland
Business groups:Horticulture and Forestry Science
Subjects:Agriculture > Agriculture (General) > Agricultural meteorology. Crops and climate
Plant culture > Field crops
Agriculture > By region or country > Australia > Queensland
Live Archive:27 Oct 2023 06:02
Last Modified:27 Oct 2023 06:02

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