摘要
目的：通过对在同一栽培条件中的不同半夏居群的生长节律观测比较，以期为半夏遗传多样性的研究提供依据。方法：采用田间试验的方法对16个半夏居群生长节律进行了连续两年的平行比较观测。结果与结论：半夏各居群在出苗、展叶、抽薹及倒苗期等生长节律方面存在着差异：大部分半夏居群在本试验栽培条件下具明显的3次出苗和3次倒苗现象，并且在年生长期内表现出春秋两个生长高峰期;从抽薹开花时间看，大部分居群在5月有1个抽薹开花高峰期，但具体起始和延续时间各居群间存在着较大的差异。其中以引自于江苏句容的半夏居群抽薹最早，且具“先花后叶”特性。
Abstract
Obective: To study the genetic diversity of Pinellia ternata. the growth rhythm. Method: Sixteen populations of P． ternata. originated mostly from middle and lower reaches of Yangtze River valley were collected and cultivated in Weigang Experimental Farm of Nanjing Agricultural University with same cultural conditions, whose differences in growth rhythm have been observed and compared continuously for two years. Result and conclusion: There are obvious differences in sprouting, lamina spreading, bolting and "sprout tumble", Three times of "sprouting" and so-called "sprout tumble" and two fast-growing periods for plants in most of the populations in spring and autumn respectively were observed within a year, including mass bolting in May. But the starting time and duration are very different from population to population, witn flowering being prior to sprouting in the population originated from Jurong county.
国家科技期刊平台
NSTL
维普
万方数据