... varietal purity 品种纯度 varietal yield test 品种比较试验 variety certification 品种审定 ...
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The results of varietal comparative test show that leaf lettuce varieties, 9547 and 9542, are characterized by the strong growth, late bolting and high yield under the condition of high temperature.
品比试验的研究结果表明，9547与9542具有高温下长势旺、不易抽薹且产量水平较高的特性。
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