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研究了日本落叶松×长白落叶松不同杂交组合的授粉可配性、可育性 ,杂种苗生长、杂种采穗园母株插穗产量和全光雾插条件下不同组合、单株插穗经不同浓度激素处理的生根以及大田生根插穗移植成活、生长情况。日本落叶松×长白落叶松种间易于杂交 ,不同组合间授粉可配性和杂种苗生长差异十分明显。尽管组合间插穗生根存在着明显差异 ,但幼年母株插穗一般生根容易 ,不经任何激素处理生根率也能达到 90 %以上。采穗园 2 .5～ 3.5年生杂种母株 ,平均可繁殖 13～ 2 7株·株 -1 、 级 2年生扦插苗。基于目前的研究结果组装各环节最佳方案 ,用人工控制授粉的方法配制优良组合 (一般、特殊配合力高 )的杂种种子 ,播种育苗后建采穗园进行扦插繁殖 ,即能在短期内大量增殖这些珍稀的遗传改良杂种
The effects of different combinations of pollination, fertility, growth of hybrid seedlings, cuttings yield of hybrid earmuffing plants and different combinations under the condition of full light fogging were studied. Concentration of hormone treatment rooting and rooting cuttings survival, growth. Japanese larch × Changbai Larch easy to hybrids between different combinations of pollination and hybrid seedling growth differences are obvious. Although there was a significant difference in the rooting between the two combinations, the young rootstock cuttings generally could be easily rooted and the rooting rate could reach more than 90% without any hormone treatment. Eggplant Park 2.5-3.5 year-old hybrid mother plants, an average of 13 to 27 plants can be reproduced · strain -1, grade 2-year-old cuttings. Based on the results of the present study, we assembled the best programs in all aspects, and used the method of artificial pollination to prepare the hybrid seeds with good combination (generally, with high combining ability). After cuttings were planted, Proliferation of these rare genetically modified hybrids