农业科学—杂交沙棘无性系子代的生长动态分析与综合评价.pdf

Hans Journal of Agricultural Sciences 农业科学, 2012, 2, 30-35 doi:10.4236/hjas.2012.22006 Published Online June 2012 (/journal/hjas) Growth Dynamic Analysis and Comprehensive Evaluation of Filial Generation of Hybrid * Seabuckthorn Clones Shibo Lan Discipline of Forest plants, Economic Forest Research Division, Forestry Research Institute of Heilongjiang Province, Ha’erbin Email: Lanshibo66@126.com Received: Mar. 11th, 2012; revised: Mar. 22nd, 2012; accepted: Mar. 30th, 2012 Abstract: The progeny test plantations of seabuckthorn Clones were studied by analysis on the dynamic growth rhythm of seabuckthorn new shoots and fruits, genetic stability and genetic effects of the fruit length, fruit diameter, shape index of fruits, fruit mass, Yield per Plant and density of thorns and so on, and compre- hensive evaluation of five filial generation of hybrid seabuckthorn, the superior hybrid clones were selected. The results showed that the new shoot growth process of seabuckthorn clones is roughly divided into four stages of growth, slow growth period, stable growth period, the fast-growing and the stop-growing period, there are some differences from the shoot growth of each stage, but the growth trend is basically the same; the change trend of Seabuckthorn fruit shape index (L/D) was inverted “S” type, it is down sharply at the early stage, stable at mid-stage, Chinese seabuckthorn slightly rises, but Crossbreeds is still steady growth at late stage; Chinese × Russian Seabuckthorn-4 was the best hybrid clones by synthetic analysis