思茅松种子园家系的子代测定

Family Progeny Determination of Pinus kesiyaSeed Orchard

通过对普文思茅松种子园28个家系的子代测定。结果表明:(1)思茅松种子园家系的子测林在高、径、材积生长上均存在着极显著差异,表明思茅松种子园的家系还能开展进一步选择,可筛选出更加优良的家系;(2)采用思茅松种子园种子造林显著优于当地的商品种,12年生思茅松林材积生长量上高于商品种的31.7%,思茅松种子园的种子具有较高的遗传增益;(3)综合树高、胸径、材积的结果看,表现较好的家系有22个,分别是12、26、15、13、3、9、22、5、16、4、24、6、21、14、2、7、18、8、23、28、25、11号家系,可作为种子园的优良家系。

By means of 28 families progeny determination of Puwen Pinus kesiya seed orchard. The results showed that： （1） Pinus kesiya seed orchard families child measuring forests in high, diameter, and volume growth were significantly differ- ent. They indicated that can further selection, screening out more excellent family; （2） Their planting significantly better than the local commodity. Volume growth of 12 years Pinus kesiya was higher than the 31.7% that of commercial species, the ge netic gain of it＇s seeds was high （3）Tree height, DBH, and volume of the results, the better families has 22, respectively, 26, 15, 12 13, 3, 9, 22, 5, 16, 4, 24, 6, 21, ]4, 2, 7, 18, 8, 23, 28, 25, 11pedigrees. They ean be used as fine seed garden excellent families.