Carrot root mass and diameter were superior to mean traits of parents in heredity.

根重、根粗性状在遗传中表现出较高的超中亲现象。

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And plants need to keep the root mass in some rough balance with the leaf mass to be happy.

植物都需要保持住根群同时和茎群保持大致的平衡以便维系。

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Based on the measured data from the winter wheat fields in Zhengzhou of Henan Province, the vertical distribution of root length density(RLD)and root mass density(RMD)were analyzed.

根据在郑州进行的冬小麦根系田间实测资料，研究了根长密度和根质量密度在砂壤土中的垂直分布。

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The Republicans, who can muster enough votes to block the governor's budget, refuse to consider tax increases unless they are accompanied by a root-and-branch overhaul of state finances and a mass sell-off of state assets.

ECONOMIST: California's budget

Mass media conditioning has made nonconformity or eccentricity more glaring and thus less likely to flourish or take root in the first place.

FORBES: Does Your Life Seem Like A Charles Dickens Novel?