摘要
以平均单株有效产种量(E)和种子园自由授粉子代家系3年生平均树高(H)为评判因素,采用模糊综合评判方法,对马尾松种子园87个无性进行了评价,入选率为60%时,改建或重建无性系种子园的平均单株有效产种量可增加29.17%,其自由授粉子代的3年生平均树高提高3.11%
Using the average effective seed yield of per tree and the 3-year-old mean height of open-pollinated families in seed orchard as judging factors ,87 clones in masson pine seed orchard were evaluated by means of fuzzy comprehensive judgement. When the ratio of being selected is 60%,comparied with the current seed orchard, the gain of the 3-year-old average height of families in 1.5 generation seed orchard could be 27.17% and 3.11% respectively.
出处
《南京林业大学学报(自然科学版)》
CAS
CSCD
1998年第3期91-94,共4页
Journal of Nanjing Forestry University:Natural Sciences Edition
关键词
马尾松
种子园
综合评判
Pinus massoniana
Seed orchard
Comprehensive judgement