Growth and flowering responses of Curcuma alismatifolia var. Pink to shading
2004
Thohirah L. A. | Ramlan M. F. | Flora, L. S. C. | Jusoh M. Z.
An experiment was carried out to study the effects of light intensity on the growth and flowering of Curcuma alismatifolia var. Pink. The experiment was conducted in Ladang 2, UPM. Four levels of shading consisting of T1 (0% shade, without using black net), T2 (30% shade), T3(50% shade) and T4 (70% shade) were used. The average light intensity measured for T1, T2, T3 and T4 was 1207.69 µ mol m-²s-¹, 497µ mol m-²s-¹., 398.61µ mol m-²s-¹ and 286.88µ mol m-²s-¹ respectively. There were 5 replications used for each treatment. The plant characteristics measured were plant height, number of leaf, leaf area, photosynthesis rate, inflorescence length, inflorescence diameter, number of flowers and sepals. Results obtained showed that there were differences in plant height, number of leaf, photosynthesis rate and number of flowers produced for plants grown under different light intensities. However, there was no significant difference in inflorescence length produced. The study showed that T3 (50% shade) gave the best results for the growth and inflorescence production for Curcuma alismatifolia var. Pink with optimum plant height at 37.71cm, highest number of leaves produced with an average of 5.95 leaves, leaf diameter of 2.64cm and also produced the most number of inflorescences with good colour retention.
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