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Amaryllis and Hippeastrum01. Amaryllis and Hippeastrum Introduction 02. Morphology and Classification of Amaryllis 03. Different classification of Amaryllis 04. Various species and cultivars of amaryllis and hippeastrum 05. Important cultivars of Hippeastrum Hybridum 06. Breeding and hybridization of Amaryllis 07. Hybridization of Amaryllis plants 08. Propagation of Amaryllis Plants and Hippeastrum 09. Micro propagation and stem sections of amaryllis and Hippeastrum 10. Cultivation and growth of Amaryllis and Hippeastrum 11. Growth and Flowering of Amaryllis and Hippeastrum plants 12. Diseases of Amaryllis and Hippeastrum 13. Viral diseases of Amaryllis and Hippeastrum 14. Pests attacking Amaryllis and Hippeastrum 15. Harvesting of Amaryllis bulbs and Hippeastrum bulbs/flowers Other agricultural and environmental articles for education Warehousing in IndiaArticle on agricultural marketing in india and its systems. This article explains Scientific Marketing of Farm Products ... You are reading article on Amaryllis and Hippeastrum Growth and flowering of amaryllis and hippeastrum plantsGrowth and flowering of Amaryllis and Hippeastrum are influenced by several factors. Among the various external, factors, light and temperature play important role in the development processes of the plants. EnvironmentThe environmental factors playa crucial role on the growth and flowering of Amaryllis and Hippeastrum. LightTreatment with long day was found to improve the growth and flowering. Increased day length promotes the number, weight and diameter of bulb-lets, while plants under short day fails to produce bulb-lets. Plants under short-day condition do not develop flowers. Intensity of light also affects growth and flowering. It is commonly observed that when plants are grown in shady places, the number and size of flowers are considerably reduced. White flowering is improved in higher light intensity. Reduction of light intensity adversely affects flowering and bulblet formation. TemperatureFor the best results, Amaryllis should be grown under conditions where the night temperature does not fall below 60 of (15.6°C). The minimum day temperature should range somewhat higher. In India, amaryllis grows best in outdoor conditions at the temperature of about 25°C and relative humidity ranging from 50 to 90 per cent. However, it can be grown up to 35° centigrades. Growth substancesSoakmg of Hippeastrum bulbs m 3 concentrations each of of IAA, GA3, CCC and ethrel showed various responses to growth and flowering. IA increased the weight and number of bulb-lets while GA3 enhanced the flowers diameter and bulb weight. CCC (1000 ppm) increased the number of flowers per plant. Application of IAA at 100 ppm and GA3 at 10,100 or 1000 ppm twice as foliar spray at an interval of 15 days promotes the number of bulb-lets on the treated plants while concentration of CCC and etheral (1000 ppm) increased the weight of bulbs. All concentration of IAA, GA3 and 1000 ppm CCC increases the number and size of flowers. Next : Diseases of Amaryllis and Hippeastrum Previous : Micro propagation and stem sections of amaryllis and Hippeastrum |
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