蒙古栎种子园结实性状变异初步分析

Preliminary Analysis on Variation of Fruiting Traits in Quercus mongolica Seed Orchard

对吉林森工临江林业有限公司蒙古栎种子园各无性系结实性状进行了调查分析,结果表明:结实量、空籽率、百粒重、结实率、种子长、种子宽和种子长宽比在无性系之间的差异均达到极显著水平;种子长在种源之间的差异达到显著水平,结实量、空籽率、百粒重在种源之间的差异均达到极显著水平。Ⅱ-15号无性系种子长(22.39 mm)最大,Ⅰ-23号无性系种子宽(19.09 mm)最大。以结实量为依据,将各无性系分别聚类成高产、中产和低产3个类群;以种子百粒重为依据,将各无性系种子分别聚类成较重、中等重量和较轻3个类群。

The fruiting traits of clones in Quercus mongolica seed orchard of Linjiang Forestry Limited Company of Jilin Forest Industry Group were investigated and analyzed.The results showed that there were very significant differences in seed yield,empty seed rate,100-seed weight,fruiting rate,seed length,seed width and seed length-to-width ratio among clones.The difference of seed length among provenances was significant.The differences of seed yield,empty seed rate and 100-seed weight among provenances were very significant.The seed length of clone II-15 was 22.39 mm that was the maximum.The seed width of clone I-23 was 19.09 mm that was the maximum.Based on seed yield,the clones were clustered into 3 groups which were high-yield,medium-yield and low-yield.Based on 100-seed weight,the clonal seeds were clustered into 3 groups which were heavy,medium-weight and light.