...优树选择的现状 优树是指在相同立地条件下同龄林分中,生长、干形、材性和抗逆性等性状特别 优异的单株,又称正号树(plus tree),可遗传的变异是产生其特异性的原因之一。
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The great bearing interval was regarded as optimum time, and optimum method for plus tree selection was put forward by the analytical results.
提出了以定期结实年数和定期结实枝平均生长量为标准的优树选择方法。
The morphological index when correlated linearly with tree growth in single tree evaluation of plus trees selection is thought to be a basis for increasing accuracy and quality of selected trees.
把对林木生长量有直接关系的形质指标,作为单株评价的一部分,考虑在单株选择之中,作为提高单株选优质量和准确性的根据。
Plus I observed that the Fibonacci pattern helped the branches and leaves on a tree to avoid shading each other.
另外我还观察到斐波那契布局模式可以帮助避免同一棵树的枝叶间的相互遮挡。
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