The influence of artificial long day treatments on the growth and flowering of chrysanthemum (Chrysanthemum indicum Linn.) var. Yellow

Shanmugam, A.; Muthuswamy, S.; Rao, V.N.M.

South Indian Horticulture 20(1/4): 66-70


Accession: 000234532

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Chrysanthemums were given supplementary illumination from 6 p.m. to 6 a.m. for 30 days. Treatments began from the date of planting or one month or 2 months after planting, during the seasons of mid-December to late August and late July to late January. Plants which received extra light immediately after planting were the earliest, the tallest, had the longest internodes and flower stalks, produced the most flowers and had the longest flowering season. Results were more variable during the second season.