湿地松幼龄不同冠型生长差异研究

Studies of the Growth Differences of Pinus elliottii with Different Crown Types

对湿地松幼龄不同冠型的生长差异研究表明:湿地松在幼龄阶段存在着不同冠型,且这种不同冠型是由遗传所决定的;不同冠型生长,特别是高生长差异显著;5种冠型以宽冠浓密型生长量最大,窄冠浓密型次之;不同冠型可作为湿地松早期表型选择的依据。

The research showed that Pinus elliottii had different crown types during the young period,furthermore,the different crown types were determined by the hereditary;there were big differences among the growth of ones with different crown types,especially among the height growth,the growth increments of ones with wide and thick crown types were biggest among those of ones with the 5 types,those of ones with narrow and thick crown type were second biggest;the different crown types might be taken as the basis of choice of Pinus elliottii phenotype at the early stage.