葫芦是一种藤状植物的草绿色果实，又被称为瓠子或者长瓜。
A calabash is a light-green vine fruit, also known as opo squash or long melon.
果实也称为非洲梨，椭圆形，果皮颜色深蓝色和紫色相间，长约14厘米，内部果肉呈浅绿色。
The fruits are also known as African pears and are oblong dark blue to violet fruits up to 14cm in length, with pale green flesh inside.
成花素达到一定水平，产量就会提高，因为它指令植物停止长叶，开始孕育结出果实的花。
With the right levels of florigen yields increase because it instructs plants when to stop making leaves and start making flowers, which in turn produce fruit.
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