Study On Selection Of Korean Pine Excellent Clone Of Nut Type

Through analyzing seed properties among 38 clones in Korean Pine orchard Weihe forestry bureau Heilongliang province,we believe that difference among most seed properties of Korean clones is distinct. Select excellent clones ofnut type-both high yield and good quality so that build Korean Pine nutorchard. The heredity force of Korean major seed properties is great,and the sequence of the heredity force is as follows:seed yield per tree> cone quantity per tree> cone weight per tree> seed weight per thousand> cone length> seed ratio > cone diameter. When selecting excellent tree to build Korean Pine nut orchard,seed yield per tree should be chiefly considered. The correlation degree among some seed properties is prominent. Seed yield does not affect seed weight per thousand. Throughselecting,we can pick out excellent clone of nut type-both high yield andgood quality. Clone seed yield among years have great relativity,and it indicates that some clones seed yield is stable. Either abundant year or deficient year,seed yield of high yield clones are higher than any others.Through selecting,5 excellent clones,which are 124,179,119,117 and 56,are picked out.