我国银杏遗传变异研究之一——种核性状的群体间和群体内变异

doi:10.11707/j.1001-7488.20010406

林业科学 ›› 2001, Vol. 37 ›› Issue (4): 35-40.doi: 10.11707/j.1001-7488.20010406

我国银杏遗传变异研究之一——种核性状的群体间和群体内变异

张云跃马常耕林睦就李柏海

湖南省安化县林业局,安化413500；中国林业科学研究院林业研究所,北京100091；湖南省林业科技推广总站,长沙410007

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2001-07-25 发布日期:2001-07-25

STUDY ON ONE OF GENETIC VARIATIONS FOR GINKGO BILOBA IN CHINA THE VARIATION OF BREEDING FRUIT-STONE CHARACTERS AMONG AND WITHIN POPULATION

Zhang Yunyue,Ma Changgeng,Lin Mujiu,Li Baihai

Anhua Forestry Bureau,Hunan Province Anhua 413500;The Research Institute of Forestry,CAF Beijing 100091;General Station of Forestry Science and Technology Extension,Hunan Province Changsha 410007

Received:1900-01-01 Revised:1900-01-01 Online:2001-07-25 Published:2001-07-25

摘要/Abstract

摘要：

对我国银杏全分布区200多个单株种核的主要性状进行了测定和统计。结果表明,不同气候区种核特征有一定的不同,但气候区内群体间和群体内个体间的差别更大。表明遗传改良以在遗传变异丰富的群体内开展基因型选择最有前途,但考虑到适应性,育种还应立足于本气候区群体。

关键词: 银杏, 种核, 遗传变异

Abstract:

The length,width,shell thinckness and percentage of kernel of Ginkgo fruit-stone collected from more than 200 mother trees located whole-wide range were measured.The results showed that all of the characters,except for single fruit-stone weight,no significant differences among the climatic zones were observed,but the differences among populations (or locations) within a climatic zone and individuals within population were very significant.The variation coefficients for each of four characters varied from 3.0% for kernel rate to 21.3% for single pit weight.These data indicated that the genetic improvement of Ginkgo through individual selection within population should be more effective than among populations,and much than among the climatic zones.Because the adaptability is one of the most important traits for inten sive cultivation,the genetic improvement efforts should be within each climatic zone and do not carry out throughout whole range.

Key words: Ginkgo biloba, Breeding fruit-stone, Genetic variation

张云跃马常耕林睦就李柏海. 我国银杏遗传变异研究之一——种核性状的群体间和群体内变异[J]. 林业科学, 2001, 37(4): 35-40.

Zhang Yunyue;Ma Changgeng;Lin Mujiu;Li Baihai. STUDY ON ONE OF GENETIC VARIATIONS FOR GINKGO BILOBA IN CHINA THE VARIATION OF BREEDING FRUIT-STONE CHARACTERS AMONG AND WITHIN POPULATION[J]. Scientia Silvae Sinicae, 2001, 37(4): 35-40.

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我国银杏遗传变异研究之一——种核性状的群体间和群体内变异

STUDY ON ONE OF GENETIC VARIATIONS FOR GINKGO BILOBA IN CHINA THE VARIATION OF BREEDING FRUIT-STONE CHARACTERS AMONG AND WITHIN POPULATION

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