Effect of nutrition with NPK and calcium chloride as preharvest treatments on flowers quality of Hippeastrum Vittatum during postharvest handling [electronic resource].

Includes references.

An investigation was carried out at Hort. Res. Inst. to study the effect of nutrition with NPK and calcium chloride as preharvest treatments and pulsing in 25 ppm GA3 for one hour before different storage periods (O-time , 7 , 14 and 21 days ) at 8-10°c and repulsing in preservative solution contain 30g / L sucrose+ 200 mg/L 8-HQS for 24 hours then transferred to distilled water to complete the effect of the shelf life on the qualitative characters of cut tight bud stage of Hippeastrum vittatum Herb. cv "Apple Blossom". The results of this study are : application NPK 2:1:1 at the rates of 3g/pot for four times during the cultivation period improved the postharvest handling quality as compared to the untreated plants. On the other hand , plants treated with NPK then sprayed with calcium chloride at 1000 ppm for three times from the begening of flower bud emergence enhanced flowers quality during handling; i.e. increased vase life and floret longevity as it was more doubled , which had the highest fresh and dry weights and stalk contents of lignin as compared to the control and other treatments.

Summary in Arabic.

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