福州市控水调节三角梅花期技术研究

发布时间：2018-01-13 20:44

本文关键词：福州市控水调节三角梅花期技术研究　出处：《福建农林大学》2017年硕士论文　论文类型：学位论文

【摘要】：三角梅(Bougainvillea spectbilis Willa.)又称叶子花,为紫茉莉科(Nyctaginaceae)叶子花属(Bougainvillea L.)常绿藤本,其特有的观赏部位——叶形苞片使三角梅成为园林独特的观赏植物之一。本文以2个品种三角梅艳红三角梅(Bougainvillea × buttiana 'Afterglow')、叶子花(Bougainvillea spectabilisWilla.)为试验材料,研究两个品种三角梅生长特性和成花过程中的生理指标变化情况;以及控水条件下,两个品种三角梅促花生长和生理指标变化情况,了解各指标对成花的影响,以期为福州市三角梅花期调控提供理论论据和实践指导。1、两个品种三角梅生长特性和成花过程中的生理指标变化情况,结果表明:在成花进程中,艳红三角梅叶片中的可溶性糖含量、蔗糖含量均高于叶子花,糖含量增加有利于花芽形成;叶绿素含量总体呈上升趋势,且叶子花叶片中叶绿素含量变化值大于艳红三角梅,叶绿素含量的变化有利于有机质的形成;叶子花叶片可溶性蛋白含量增长幅度明显大于艳红三角梅,可溶性蛋白含量增加对花芽形成有促进作用;2个品种三角梅MDA含量均呈增长趋势,叶子花增长变化低于艳红三角梅,但其MDA含量始终高于艳红三角梅,表明艳红三角梅较叶子花抗旱能力更强。2、控制水分梯度,即土壤含水率:分为4个梯度,T1:10%-20%;T2:20.1%-30%;T3:30.1%-40%;CK:40.1%-50%,研究控水条件下,两个品种三角梅促花生长和生理指标变化情况,结果表明:控水处理导致2个品种三角梅叶绿素、可溶性糖、蔗糖、淀粉等含量较对照组增加,水分处理对丙二醛含量有显著提升作用;对C/N有显著影响,T1处理下C/N比值最小。同时,探究水分对三角梅成花影响,发现其对三角梅成花进程影响存在较大差异。T3、T1处理均延长花期,T3处理有利于2个品种三角梅花朵数量的增加,叶子花、艳红三角梅花朵数分别高达15.6±2.25、15.93±2.05朵。
[Abstract]:Bougainvillea spectbilis Willa.) also known as leafy flowers. It is an evergreen vine of the genus Nyctaginaceae, Bougainvillea L. Its unique ornamental site, leaf-shaped bracts, makes Triangle Plum one of the unique ornamental plants in the garden. Bougainvillea 脳 buttiana. Bougainvillea spectabilis Willa.). The growth characteristics and physiological indexes of two cultivars were studied. And under the condition of water control, the changes of the growth and physiological indexes of the two cultivars were studied to find out the effect of the indexes on flower formation, in order to provide theoretical arguments and practical guidance for the regulation of flowering period of Triangle Plum in Fuzhou. The results showed that the soluble sugar content and sucrose content in the leaves of the two cultivars were higher than those in the leaves. The increase of sugar content is beneficial to flower bud formation. The content of chlorophyll in leaves and leaves was larger than that in red prunes, and the change of chlorophyll content was beneficial to the formation of organic matter. The increase of soluble protein content in leaf leaves was obviously larger than that in red triangle plum, and the increase of soluble protein content could promote flower bud formation. The MDA content of the two cultivars showed an increasing trend, the change of leaf and flower growth was lower than that of the red plum, but its MDA content was always higher than that of the red triangle. The results showed that the red prunes had stronger drought resistance than the leaves and flowers, controlling the water gradient, that is, the soil moisture content: it was divided into 4 gradients: T1: 10- 20; T2: 20.1-30; T3: 30.1-40; Under the condition of water control, the changes of growth and physiological indexes of two cultivars of Trifolium triticosa were studied. The results showed that the controlled water treatment resulted in chlorophyll and soluble sugar of two varieties. The contents of sucrose and starch were higher than that of the control group, and the malondialdehyde content was significantly increased by water treatment. The ratio of C / N was the lowest under T 1 treatment. At the same time, it was found that the effect of water on the flowering process of triangular plum was different. The treatment of T _ 1 and T _ 3 could increase the number of flowers in two cultivars, and the number of leaves and flowers was 15.6 卤2.25 and 15.93 卤2.05, respectively, and the number of flowers was 15.6 卤2.25 and 15.93 卤2.05, respectively.
【学位授予单位】：福建农林大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：S685.99

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