| 单词 | elite tree |
| 释义 | > as lemmaselite tree C2. attributive. Designating plants, seeds, crops, etc., which are selected for seed collection, breeding, or propagation because they possess desirable traits, as elite stand, elite tree, etc.In early use difficult to distinguish from sense A. 1a(a). ΚΠ 1899 Beet Sugar Gaz. July 13/2 The elite mother beets..are assorted by their typical properties of form, color and external marks of the roots. 1907 H. de Vries Plant-breeding ii. 94 Those races..for which the seed must be produced anew in each generation from a stock of so-called élite plants. 1936 Forestry 10 35 By this process, in every fifth row of trees élite trees were selected, roughly every fifth stem when suitable. 1982 Yearbk. U.S. Dept. Agric. 1981 76 Sources of this increased genetic diversity include elite varieties from other parts of the world. 1994 Irish Jrnl. Agric. & Food Res. 33 75/2 Elite seed (35 to 45 mm) was sprouted in a horticultural-type polythene tunnel. 2012 D. Pigott Lime-trees & Basswoods viii. 68/2 Insufficient attention has been given to selection of ‘elite’ stands for sources of seeds. < as lemmas |
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