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扁平瓜 多数扁平瓜的瓜梗部和瓜脐部凹陷较深,瓜皮厚,瓜瓤色淡,有空心,品质差。其原因主要是在瓜发育前期遇到不良的环境条件,如低温、干燥、光照不足、叶片数过少或由于营养生长过旺植株徒长而影响瓜的发育,以后条件改善,西瓜又继续发育,结果就形成了扁平瓜。同时,留瓜节位过低时易出现扁平瓜;主蔓与侧蔓相比,主蔓上易出现扁平瓜。此外,杂种一代比固定品种出现扁平瓜少;有籽西瓜比无籽西瓜出现扁平瓜少。
Flat melons Most melon stems and melons of the melon Umbilicus deep depression, thick melon, melon 瓤 pale, hollow, poor quality. The main reason is that in the early stage of melon development encountered adverse environmental conditions, such as low temperature, dry, insufficient light, the number of leaves is too small or due to vegetative growth is too long plant growth and melon growth, the subsequent conditions improve, watermelon and continue to develop, The result is a flat melon. In the meantime, it is easy to appear the flat melon when the melon festival bit is too low; The main melon is easy to appear the flat melon compared with the side vine. In addition, the hybrid generation appeared flattened melons more than the fixed varieties; the seedless watermelon showed fewer flat melons than the seedless watermelon.