摘要
The contents of starch, fat, protein, macro\|and micro\|elements of Ginkgo nuts collected from 42 trees located at 13 original regions in 9 provinces were determined. The results showed that differences among regions were higher than those among individuals within region, although the variation level for all the compositions and mineral elements were lower. Therefore, at present selection and application of high\|yielding genotypes was a proper strategy to genetic improvement of Ginkgo biloba. Because increase of nut yield through individual selection within population will be achieved more easily and quickly than that for nut quality improvement in a short time.
The contents of starch, fat, protein, macro\|and micro\|elements of Ginkgo nuts collected from 42 trees located at 13 original regions in 9 provinces were determined. The results showed that differences among regions were higher than those among individuals within region, although the variation level for all the compositions and mineral elements were lower. Therefore, at present selection and application of high\|yielding genotypes was a proper strategy to genetic improvement of Ginkgo biloba. Because increase of nut yield through individual selection within population will be achieved more easily and quickly than that for nut quality improvement in a short time.
出处
《林业科学》
EI
CAS
CSCD
北大核心
2002年第2期157-161,共5页
Scientia Silvae Sinicae
基金
湖南省"九五"科技攻关课题"银杏优良种源
家系
无性系配合选择研究"的部分内容
关键词
银杏
遗传变异
种仁
营养成分
无机元素含量
Ginkgo biloba, Nutrient substance, Mineral element, Genetic variation
