Effect of Storage Temperature and Duration on Flower Qualities of <I> Hippeastrum </I> ‘Susan’
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The effects of storage temperature and duration on flower qualities of Hippeastrum ‘Susan’ were studied. Bulbs with 20 – 24 cm circumferences were selected and kept in cold room at 10 and 15 ºC for 1, 3 and 5 months. After storage, bulbs were grown in medium using soil : sand : coconut dust : rice husk charcoal : rice hull with ratio of 4 : 1 : 1 : 1 : 1 . The result showed that the storage temperature at 10 ºC increased diameter of flower stalk and storage temperature at 15 ºC increased flower size. The storage duration for 1 month increased flower stalk circumference, flower stalk length and flower size. Storing bulbs at 10 ºC for 1 month increased flower stalk circumference, flower stalk length and flower size. However, there was no significant different when storing bulbs at 10 ºC for 3 months compared with storing bulbs at 15 ºC for 1 months. Therefore, bulb storage at 10 ºC for 1-3 months was suitable for to delaying pot plant production of Hippeastrum ‘Susan’.
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