长春密刺黄瓜第一雌花节位低,瓜码密,如在基部选留种瓜,营养生长受到很大的抑制,植株生长弱,从而影响种瓜发育。本品种熟性早,结瓜早,前期气温低,昆虫数量少、活动能力差,授粉受精不良,而本品种单性结实率又高,从而严重影响采种量。所以本品种采种必须从6～8节以上留取 Changchun secret cucumber first female flower node is low, melon code dense, such as the choice of the base to retain the melon, vegetative growth is greatly inhibited, plant growth is weak, thus affecting the development of seed melons. The varieties of early maturity, fruiting early, pre-low temperature, the number of insects, poor activity, poor pollination and fertilization, and the high rate of single species of seed set, which seriously affect the amount of seed collection. Therefore, the species must be collected from more than 6 to 8 sections to take