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为详细了解云南松杂交育苗及苗期生长情况,对云南松51个杂交组合和19个半同胞苗木的苗高和地径生长性状进行了测定与分析,结果表明,38个云南松种内杂交种幼苗苗高与地径生长差异大部分达到极显著水平,有15个种内杂交种的苗高生长值超过了总体平均值,有18个种内杂交种的地径生长值超过了总体平均值;云南松种内杂交相同母本的不同杂交组合类别之间的苗高和地径生长差异大部分达到极显著水平,有11个类别杂交种的苗高和地径生长均显著高于半同胞苗木的生长性状;13个云南松与思茅松种间杂交种幼苗苗高与地径生长差异均达到极显著水平,有7个种间杂交种的苗高和地径生长均超过了总体平均值;云南松与思茅松种间杂交种的苗高总体均值约是云南松种内杂交种苗高总体均值的1.4倍,二者的地径生长均值基本接近;云南松与思茅松种间杂交相同母本的不同杂交组合类别之间的苗高生长差异均达到极显著水平,地径生长差异不显著,有4个类别杂交种的苗高和地径生长均显著高于半同胞苗木的生长性状。
In order to know more about the seedling growth and seedling growth of Pinus yunnanenensis, the seedling height and diameter growth traits of 51 hybrids and 19 half siblings of Pinus yunnanensis were determined and analyzed. The results showed that 38 hybrids Most of the seedling seedling height and diameter growth difference reached extremely significant level, 15 kinds of hybrids seedling height growth value exceeded the overall average, 18 kinds of hybrids of the ground diameter growth value exceeds the overall average Most of the difference in seedling height and diameter growth between the different hybrid combinations of the same female parent within the Pinus yunnanensis hybrid reached extremely significant level, and the seedling height and diameter growth of 11 hybrids were significantly higher than those of the half Sibling seedlings growth characteristics; seedling height and diameter growth of 13 hybrids between Pinus yunnanensis and Pinus koraiensis seedlings all reached the extremely significant level, 7 kinds of hybrids seedling height and diameter growth exceeded the overall average ; The average of seedling height of hybrids between Pinus yunnanensis and Pinus kesiya was about 1.4 times of the average of hybrid seedlings of Pinus yunnanensis, Same mother’s Growth same height difference between the categories hybrids were highly significant, diameter growth was not significant, there are four categories of hybrids height and diameter growth traits were significantly higher than the growth half-sib seedlings.