Upper-leaves的用法和樣例：
例句
- At earing stage P-resistant genotypes, compared to P-sensitive ones, have higher accumulation of Pin upper leaves.
孕穗期，玉米自交系耐低磷特性主要體現在上部葉磷累積量較高，能保證玉米後期正常生長發育。 - Based on tobacco company evaluations of upper-stalk tobacco from these trials, ripeness and separation of the uppermost leaves had the greatest effect on tip grade production.
根據煙草公司對來自從這些試驗的上部煙葉的評估，成熟度和最上部葉的分次採收對頂葉等級的產生影響最大。
