ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Postproduction performance of 'Gloria' azalea in response to flower maturity and simulated transport.

Black, L.A., Nell, T.A. and Barrett, J.E.

HortScience. Volume 26, Number 5, May 1991. Pages 571-574.

1991

บทคัดย่อ

Dormant-budded 'Gloria' azaleas (Rhododendron sp.) at various maturity levels (one, eight, or 32 individual open flowers) were moved from the greenhouse to postproduction rooms. Postproduction rooms were maintained at 21 +/- 1C, relative humidity 50% +/- 5%, and 12 hours of daily irradiance at 12 micromoles.s-1.m-2 from cool-white fluorescent lamps to simulate home conditions. Using predetermined categories, the number of tight, showing-color, candle, and open-flower inflorescences were recorded. After 2 weeks postproduction, plants chosen at the start of postproduction with eight or 32 individual open flowers had the best flowering uniformity and flower color. In a second experiment, azaleas with one, eight, or 32 individual open flowers were placed into simulated transport for 4 days at 16 +/- 1C. Plants with one individual open flower had greatest longevity, but those with eight open flowers had the best overall postproduction performance. In a final experiment, azaleas at similar maturity levels were placed in simulated transport at 5, 16, or 27C for 2, 4, or 6 days. After 2 weeks postproduction, there was no difference due to simulated-transport temperature or duration on flowering performance or flower color. Longevity was good for plants held 2, 4, or 6 days at 5C and for plants held for 2 days at 16 or 27C.