ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Season and fertilization affect the post-harvest flower life of anthurium.

Paull, R. E.; Higaki, T.; Imamura, J. S.;

Scientia Horticulturae Year: 1992 Vol: 49 Issue: 1-2 Pages: 125-134 Ref: 18 ref.

1992

บทคัดย่อ

Anthurium andreanum cv. Ozaki plants were established outdoors at Hilo and given 0, 224 or 448 kg/ha annually of N, P and K. Flowers were harvested at 2-week intervals beginning 6 months after the fertilizer treatments began. After overnight storage in water, the flowers were packed in standard boxes with moistened shredded newspaper and a plastic liner for shipment to Honolulu. They were held at 22 deg C for 3 d, then the basal 2 cm of the stems was removed and flowers were placed in water at 22 deg and kept at 70-80% RH with light at 10 W/m2 for 12 h/d. Vase life varied from 8 to 69 d. Mean maximum temperature during the 2 months before harvest and duration of postharvest life were positively related and explained approximately 53% of the variation. High N rate reduced postharvest life but this was alleviated by high K; P had no effect. N and K fertilizer rates explained approximately 13 and 17%, respectively, of the variation. Spadix necrosis and spathe condition signalled the end of vase lif e at low N and P and at high K rates. Loss of spathe gloss was significant at high N and low K rates. Preharvest factors explained 63-71% of the variance in postharvest life. Optimum annual fertilizer rates for maximum postharvest life were 0 kg N/ha and 224 or 448 kg K/ha.