EFFECT OF FOLIAR APPLICATION OF MICRONUTRIENTS, MAGNESIUM AND WRAPPING FILMS ON YIELD, QUALITY AND STORABILITY OF GREEN BEAN PODS | ||
| Fayoum Journal of Agricultural Research and Development | ||
| Article 10, Volume 29, Issue 1, January 2015, Pages 121-138 PDF (657.56 K) | ||
| Document Type: Research articles. | ||
| DOI: 10.21608/fjard.2015.192992 | ||
| Authors | ||
| S.A. Shehata1; Said, Z. A.1; Manal M. Attia2; M.A. Rageh2 | ||
| 1Faculty of Agriculture, Cairo University, Giza, Egypt | ||
| 2Postharvest and Handling of Vegetable Crops Department. Horticulture Research Institute. Agriculture Research Center, Giza, Egypt. | ||
| Abstract | ||
| This study was carried out under plastic house conditions during autumn seasons of 2012/2013 and 2013/2014 at the Agricultural Experiment and Researches Station, Faculty of Agriculture, Cairo University on Morelado cv. to study the effect of foliar spraying by Iron at 100 ppm+ Manganese at 100 ppm + Zinc at 50 ppm or Magnesium at 0.5% concentrations on productivity ,quality and storability of snap bean during storage at 6 °C and 95 % RH. Results showed that green bean plants sprayed with Iron at 100 ppm+ Manganese at 100 ppm + Zinc at 50 ppm were, significantly, the highest in all vegetative growth parameters compared with other treatments. Foliar application with Iron at 100 ppm+ Manganese at 100 ppm + Zinc at 50 ppm or magnesium at 0.5% increase leaves chlorophyll content without significant differences between them. Foliar application with Iron at 100 ppm+ Manganese at 100 ppm + Zinc at 50 ppm or magnesium at 0.5% , significantly increased the total yield and its components with significant differences between them and also improved the pods quality. Results showed that with prolonging the storage period at 6 °C and 90 – 95% RH ,weight loss% of pods increased, but general appearance, total chlorophyll and ascorbic acid content were reduced. Green bean pods from plants sprayed with Iron at 100 ppm+ Manganese at 100 ppm + Zinc at 50 ppm gave less weight loss % and high values of chlorophyll and ascorbic acid contents , also maintained good appearance for 16 days storage at 6 ºC + 95 % RH . Concerning the effect of packaging material, snap bean pods packed in polypropylene or stretch reduced the weight loss percentage as compared with unpacked pods during storage in the two seasons, however, polypropylene film was the most effective treatment in reducing the loss in pods weight compared with those packed in stretch film. Snap bean stored in polypropylene film was perceived to have the highest intensities of freshness, greenness and crispness, while unpacked control was perceived to have low intensities of these attributes. The highest total chlorophyll content was obtained from pods packaged in polypropylene film followed by those packed in stretch film with significant differences between them. However, the lowest ones was obtained from unpacked pods during storage. Snap bean pods packed in polypropylene or stretch film were significantly higher in ascorbic acid with no significant differences between them than unpacked pods during storage. | ||
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