Author(s):

S Thiripurasundari, M Velmurugan, S Geethanjali and SP Thamaraiselvi

Abstract: The present investigation was conducted to evaluate ten varieties of cut chrysanthemum in polyhouse and open-field conditions during 2019-2020 at Department of Floriculture and Landscape Architecture, Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India. The study was conducted in FRBD with ten treatments and three replications and morphological, flowering parameters were recorded. The results revealed that, Salvador White (T₁) the overall plant growth such as plant height (95.2 cm); flower diameter (7.6 cm); flower yield (74 g/plant) were found to be maximum both under polyhouse and open-field conditions followed by Artic Queen (T₉) with plant height (94.1 cm); flower diameter (7.2 cm); flower yield (64.5 g/plant) and vase life of flower (5.97 days). The variety Artic Queen (T₉) produced longest flower stalk both under polyhouse (117.35) and open-field conditions (79.87). The emergence of flower bud and occurrence of blooming was found to be earlier in open-field than in the polyhouse in all the varieties. Early flower bud appearance (58.5 days) and number of flowers per plant (42.1) was noticed in the variety Tanta Pink (T₅). Under polyhouse conditions, the duration of flowering was found to the longest in Salvador White (T₁) and Artic Queen (T₉) (47 days), followed by Chaproan Yellow (T₆) (45 days) respectively. The shortest flowering duration was observed in open field and least flowering duration was observed in Marigold (T₁₀ control) (22 days).

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