摘要
研究了日本南瓜从花后到商品成熟期直至老熟期果实发育过程中鲜重、干重、长度和横径以及干鲜重比的变化。结果表明 ,日本南瓜在生长膨大期 ,果实的鲜重与长度、横径变化趋势一致 ,开花后 9d内增长迅速 ,9d后增长速率减慢 ;干重和干鲜重比的变化表明 ,花后 6d干重增加较慢 ,6d后干重迅速增加 ,直至老熟期干重仍有增加。另外 ,对果实发育过程对N ,P ,K吸收特性进行了研究 ,结果表明 ,果实发育对N ,K吸收较多 ,对P吸收较少。
The changes of the fresh weight (FW), dry weight (DW), length and width, the ratio of DW/FW and absorption contents of N,P,K by the fruit during the development stage of fruit from flowering to entirely mature of Japanese squash were studied. The results showed that the changes of fresh weight, length and width of fruit had same trend. They increased sharply in 9 days after flowering, and then increased slowly. The ratio of DW/FW decreased in 6 days after flowering and increased fast from then on. The absorption of N, K by fruits were more than that of P. This indicates that more fertilizer of N, K should be applied during the development stage of fruit.
出处
《山西农业科学》
2001年第1期67-69,共3页
Journal of Shanxi Agricultural Sciences
