西北林学院学报2012，Vol.27Issue(3)：62-67,112,7.DOI:10.3969/j.issn.1001-7461.2012.03.13
毛梾种子萌发特性及幼苗生长规律研究
Seed Propagation Technique and Seedling Growth Regularity of Cornus wateri
摘要
Abstract
In order to provide theoretical basis for rapid propagation of Cornus wateri, the development rule of the seedling growth and seed germination were studied. The methods of weighing, seed diameter measurement, anatomy approaches, TTC and seed contents determination were applied to determine the seeds morphology structures, seeds vigor and nutrient contents to find the characteristic differences of the seed germination among the seeds from different provenances. The seeds were then treated by low temperature stratification, plant hormones, and the different matrixes to discover the optimal technique of seed dormancy and to observe the seedling growth-rhythm. The results indicated that the seeds from provenance of Yangling was the best among 6 locations, the provenance of Henan was the worst one. The seeds from Yangling got the best germination rate by low temperature stratification, accounting for 46. 7% , 114 times more than that of directly sowing. The effective hormone concentration for breaking seed dormancy were 150 mg · L-1 of GA3, in which the germination rate was 48. 43%. The vermiculite was the prime sprouting matrix. There were two peak periods in seedling growth at the last ten days of May to the first ten days of June, and the end of July to the first ten days of August, respectively.关键词
毛梾/种子萌发/幼苗生长Key words
Cornus wateri/ seed bourgeon/ growth分类
农业科技引用本文复制引用
康永祥,贠玉洁,赵宝鑫,陈绵,康晋..毛梾种子萌发特性及幼苗生长规律研究[J].西北林学院学报,2012,27(3):62-67,112,7.基金项目
林业公益性行业科研专项(200804010) （200804010）
陕西省教育厅科研计划项目(06JK153). （06JK153）
