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Influence of Photoperiod and Temperature on the Growth and Flowering of Heliconia aurantiaca

V. Geertsen

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Abstract

The effect of photoperiod (8, 12, or 16 hr) and temperature (15, 18, or 21C) on Heliconia aurantiaca Ghiesbr. ex. Lemaire was investigated. By exposing plants to a photoperiod of 8 hr, flowering was more advanced and more abundant, fewer leaves subtended the inflorescence, and the length of the flowering stems was shorter than at 16 hr. Raising the temperature from 15 to 21C increased the flowering percentage by ≈ 20%; the flowering stems were 40 cm longer and the number of leaves subtending the inflorescence was increased by 2.5.

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What this paper is about

The effect of photoperiod (8, 12, or 16 hr) and temperature (15, 18, or 21C) on Heliconia aurantiaca Ghiesbr. ex. Lemaire was investigated. By exposing plants to a photoperiod of 8 hr, flowering was more advanced and more abundant, fewer leaves subtended the inflorescence, and the length of the flowering stems was shorter than at 16 hr. Raising the temperature from 15 to 21C increased the flowering percentage by ≈ 20%; the flowering stems were 40 cm longer and the number of leaves subtending the inflorescence was increased by 2.5.

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Available abstract

The effect of photoperiod (8, 12, or 16 hr) and temperature (15, 18, or 21C) on Heliconia aurantiaca Ghiesbr. ex. Lemaire was investigated. By exposing plants to a photoperiod of 8 hr, flowering was more advanced and more abundant, fewer leaves subtended the inflorescence, and the length of the flowering stems was shorter than at 16 hr. Raising the temperature from 15 to 21C increased the flowering percentage by ≈ 20%; the flowering stems were 40 cm longer and the number of leaves subtending the inflorescence was increased by 2.5.

Key concepts: Inflorescence, photoperiodism, Biology, Botany, Horticulture

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Influence of Photoperiod and Temperature on the Growth and Flowering of Heliconia aurantiaca — Research Paper | ScholarLens