影响枸杞商品品质的主要因子是枸杞果实形成期的平均相对湿度，平均气温和累计降水量。
The chief weather factor affecting commercial quality was mean air humidity during fruit forming , mean air temperature and rainfall.
那么这些细胞是如何分化并形成像根、茎、叶和果实那样不同的结构的呢？
How then can these cells differentiate and form structures as different as roots, stems, leaves, and fruits?
红莓和黑霉都是自花传粉的，这就是说，它们无需昆虫为它们传粉就能自己供应花粉，形成果实。
Red raspberries and blackberries are self-pollinating, meaning that they can supply their own pollen and form fruit without needing insects to ferry pollen for them.
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