The Daffodils Flower Bud Differentiation And Potted Technology

Twenty three cultivars of daffodils was introduced into Xuzhou City, Jiangsu Province, and flower bud differentiation and potted technology of these daffodils varieties was studied in this paper. The results are as follows:The23cultivars cought be planted in the Xuzhou area, its phenological phase difference are very big,’Hawera’,’Suzy’,’Martinette’ into the emergence of earlier, since late December begins with green, and continued throughout the all winter, suitable for ground cover garden.5varieties such as ’Minnow’,’Hawera’,’Tete-a-tete’,’Suzy’,’Martinette’ are multi-flower of each vine,’Cheerfulness’ is one pair of flowers, and other were one flower of each vine;’Ice follies’,’Parisienne’,’Mount Hood’,’Orangery’,’Martinette Mitchell’,’Flower record’ varieties of corona colors with the flower open to decline, color is changing, scape height ranging from15-27cm, spend large Seyan, suitable for Potted; Most cultivars of a single bulb capable of pumpingl flowers, and ’Minnow’,’Hawera’,’Tete-a-tete’,’Suzy’,’Martinette’ Sprouted3-5flowers on each vine,’Cheerfulness’ had2flowers. All cultivars having one flower on each vine, the corolla diameter between4-8cm, leaf number less than10, the width of the blade is much greater than1.0cm; and multi-flower of each vine, its corolla diameter is less than4cm, leaf number per plant in at least10more, most species of leaf width less than1.0cm.Narcissus flower bud differentiation in sequence from outer to inner, respectively: Leaf differentiation, petal differentiation, stamen differentiation, pistil differentiation period of flower bud differentiation in4, from early July to mid September, During storage, the growing point of Narcissus in early development slower, later development rate is rapid, and press from outside to inside in order.Narcissus pot process, medias effected later growth on the ’Red Devon,’and ’Dutch suhda’, inflorescence unearthed in sand media1-3days later perlite media,but perlite media later1-3days than; vermiculite media sand and perlite inflorescence colour is similar, but are later than vermiculite2-3days, but flowers opening day and the flowers withered day is similar; three mixing medias on ’Red Devon’,’Dutch suhda’ potted about Leaf width, corolla diameter, tepals length, Tepals wide, corona diameter, corona high indexes little influence. Spraying different concentration of CCC, S3307, and PP333growth inhibitor, the inflorescence unearthed day, inflorescence color day, flowers day and flowers wither day had little influence, but had much influence about growth spraying with CCC, S3307, and PP333, leaf length and flower stem height were gradually reduced, leaf chlorophyll content increased gradually, but had little influence on leaf width.