The effects of chitosan oligosaccharides soil conditioner and nitrogen fertilizer on the flowering and fruit growth of purple passionfruit (Passiflora edulis Sims var. edulis)
The effects of chitosan oligosaccharides soil conditioner and nitrogen fertilizer on the flowering and fruit growth of purple passionfruit (Passiflora edulis Sims var. edulis)
复制标题
壳寡糖土壤调理剂和氮肥对紫百香果(Passiflora edulis Sims var. edulis)开花和果实生长的影响
DOI：
10.2503/jjshs.67.567
复制
发表时间：
1998
影响因子：
--
通讯作者：
T. Takebayashi
中科院分区：
文献类型：
--
作者：
N. Utsunomiya;Hiroaki Kinai;Yoshinori Matsui;T. Takebayashi
研究了1993年至1995年高氮水平和低氮水平下以壳寡糖为主的土壤改良剂对盆栽紫色百香果（Passiflora edulis Sims var. edulis）开花和结果的影响。每年添加土壤改良剂和高氮肥，可显着增加花数和收获果实数、单果重和汁液产量。在低氮条件下，土壤改良剂减少了第一个生长季的成花，对后两季的开花影响不大，但在1994年和1995年，该处理增加了果实和果汁重量，其程度与不施用土壤改良剂的高氮水平几乎相同。土壤改良剂和氮含量均不会影响坐果、开花和收获之间的天数或果汁中的总可溶性固体和酸含量。这些结果表明，施用足够氮肥的土壤调理剂可以稳定紫百香果的果实产量，并且即使减少施氮量，连续施用土壤调理剂也能在一定程度上保证产量。
The effect of a soil conditioner, consisting mainly of chitosan oligosaccharides on the flowering and fruiting of pot-grown purple passionfruit (Passiflora edulis Sims var. edulis) under high and low N level from 1993 to 1995 was investigated. The number of flowers and harvested fruits, fruit weight and juice production were increased significantly by the annual addition of soil conditioners and high N. Under low N condition, the soil conditioner reduced flower formation in the first growing season and had little effect on the flowering the next two season, but in 1994 and 1995, the treatment increased the fruit and juice weights to nearly the same degree as those at high N level without the soil conditioner. Neither the soil conditioner nor N level affected fruit set, the days between anthesis and harvest, or total soluble solid and acids contents of the juice. These results indicate that the application of a soil conditioner with enough N stabilize fruit production of purple passionfruit, and that continuous supply of the soil conditioner ensure the yield to a certain degree even if N dosage is reduced.