A pot experiment was conducted for the first time in Bangladesh, at the Horticulture Farm of Sher-eBangla Agricultural University, Dhaka during November, 2010 to July, 2011 to asses the adaptability of seven lisianthus (Eustoma grandiflorum) cultivars namely Micky Rose, Pink Rose, Azuma No Yosooi, Purple Edge Glass, Piccolo Blue, Mellow Purple and Royal Violet for commercial cultivation in Bangladesh. The experiment was conducted in a Randomized Complete Block Design with nine replications. Significant differences among cultivars were noted for all the attributes evaluated. The highest number of flowers (16.0/plant) was produced by Piccolo Blue and the lowest from Pink Rose (7.0/plant). All the cultivars in this study showed very good shelf life (12.0-25.0days) in normal condition. All the seven lisianthus cultivars performed satisfactorily as ideal cut flowers. Further work may be done to develop these as commercial cultivars in Bangladesh.
Five varieties viz., Caesar, Aymara, Ivory, Jewel, and Triticaca were in use for the study in Randomized Complete Block Design with five replications. Significant differences among cultivars were noted for all attributes evaluated. Variety 'Triticaca' had maximum stalk length and diameter, spathe length and breadth, spadix length, vase life and flowers per plant. Through present analysis it is noticed that, variety 'Titicaca' are exceedingly preferred because of its attractive flowers, excellent flower size, yield potentiality and long shelf life.
An experiment was conducted to evaluate the performance of rose cultivars and their categorization based on color, fragrance and use. Field experiment included forty four rose cultivars coded from V1 to V44. It was found that all rose cultivars varied significantly for the studied characters like number of shoots/plant, leaf area, chlorophyll content, number of flower/plant and petals per flower. Rose cultivars were categorized in nine groups in accordance to color, three groups in accordance to the fragrance and two groups in accordance usage excluding the wild type. V3 (Tajmahal), V4 (Yellow star), V14 (Lavender gold), V16 (Compassion), V21 (SAU hero), V23 (Yellow gold), V25 (Sleepy moon), V26 (Sweet doll), V30 (Chrysanthemum rose) and V35 (Sweet sakata) cultivars were found as the cut flowers and rest were pot/bedding flower. Among the 44 cultivars desired one could be isolated easily for the specific purpose. Roses are vegetatively propagated and they are selected for defined traits such as stem length, flower bud, flower number, flower size and flower qualities (shape, color, fragrance). Breeding to modify a single characteristic generally results in changes to other characters as well.
The experiment was conducted to observe the correlation of cane growth with floral behavior of nine Dendrobium cultivars. Results revealed that, cane growth of different Dendrobium cultivars influenced flowering behavior. The present experimental findings may help to determine standard cane growth for efficient nutrient management and commercial grade flower production of Dendrobium cultivars.
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