Flower and Leaf Initiation by Chrysanthemum Morifolium Ramat in Long Days
Flower and Leaf Initiation by Chrysanthemum Morifolium Ramat in Long Days
复制标题
菊花在长日照下引发花和叶
DOI：
10.1080/00221589.1976.11514712
复制
发表时间：
1976
期刊：
影响因子：
--
通讯作者：
K. Cockshull
中科院分区：
文献类型：
--
作者：
K. Cockshull
以12个短日型菊花品种为试材，进行了3个连续的长日栽培试验。所有品种的顶生和腋生顶端分生组织最终引发花芽，虽然他们的进一步发展受到抑制，在长日照，他们没有达到开花。营养生长的时期是量化的叶片和苞片的数量开始由每个分生组织之前，花的启动。这个数字在品种之间和实验之间变化，但当品种按叶数排序时，它们的相对位置在每个实验中是相似的。不同品种的叶片分化率也有差异，但与花下形成的叶片数无关，由此推测菊花的成花时间也因品种而异。因此，菊花在长日照条件下成花是必然的，成花时间随日照时间的延长而延长。
SummaryRooted cuttings of twelve cultivare of Chrysanthemum morifolium, a short-day plant, were grown exclusively in long days in three consecutive experiments. The terminal and axillary apical meristems of all cultivars eventually initiated flower buds, although their further development was inhibited in long days and they did not reach anthesis. The period of vegetative growth was quantified in terms of the numbers of leaves and bracts initiated by each meristem prior to flower initiation. This number varied between cultivars and between experiments, but when the cultivars were ranked in order of leaf number, their relative positions were similar in each experiment. The rate of leaf initiation also varied between cultivars, but was not correlated with the number of leaves formed below the flower, from which it was estimated that the time of flower initiation also varied with cultivar.It was concluded that flower initiation in the chrysanthemum in long days is inevitable, with the time of initiation depe...