seed covering的意思|示意

The physiological basis was discussed for the echnique of covering seedbed with plastic film in maize hybrid seed production.

系统地探讨了玉米地膜制种促熟增产的作物生理学机理。

Temik seed covering and 3911 seed dressing are the best, while Pirimi-carb is the poorest.

涕灭威盖种和3911拌种效果最佳，抗蚜威最差。

The seed has an outer coating that surrounds the genetic material of the new plant, and inside this covering is a concentrated supply of nutrients.

种子有一层外壳，包裹着新植物的遗传物质，外壳内部是集中的营养供应。