计算了优树的选择差和遗传增益。
Selection differential and genetic gains are also estimated.
栓皮栎优树选择应采用小样地法，各地区选择标准不同。
The plus trees selection of Q. variabilis should use the small sample plot method and the standard is different in each region.
本文对39个杜仲优树无性系叶片的硝酸还原酶活力进行了测定。
Examines the NR activity of leaves from 39 clones of eucommia plus.
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 great bearing interval was regarded as optimum time, and optimum method for plus tree selection was put forward by the analytical results.
对油桐优树选择标准、选择方法进行了初探，得出各性状在选优中所占权重。
This paper makes a tentative inquiry into the choice of standard and method about the improved strains of Tung tree and knows the proportion each property accounts for.
本研究制定了正确的核桃优树选择程序和方法，提出了坚果品质和产量并重的决选原则。
This paper has worked out the correct procedures and methods of the selection of the fine trees of walnut and has set the principles of stressing both t.
论述了优树选择应遵循优良种源区选择优良林分，优良林分中选择优良单株的系统选择原则。
The selection principle is selecting stand from fine seed source and from them selecting fine individuality.
通过自1999年在罗平县水沟林场开始的杉木优树家系收集建设的实践，总结完善了杉木优树收集区的营建配套技术。
Through the practice of superior tree collection at Shuigou Forest Farm of Luoping county since 1999, a set of technology on establishment of superior tree collection site was summarized.
该协议可搜索多条可行树枝，并能选择一条最优(或近优)树枝将新成员连接到多播树。
The protocol can search multiple feasible tree branches, and select the optimal or near optimal branch for connecting the new receiver to the multicast tree if it exists.
早期疏芽疏花可以节省树体养分，但疏果则有选优去劣的好处，而保留住有潜在能力的优质果。
Early flower or bud thining can economize nutrition of tree, but fruit thinning can have good of choosing good and losing bad, and can retain good fruit with latent ability.
早期疏芽疏花可以节省树体养分，但疏果则有选优去劣的好处，而保留住有潜在能力的优质果。
Early flower or bud thining can economize nutrition of tree, but fruit thinning can have good of choosing good and losing bad, and can retain good fruit with latent ability.
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