تأثير المعاملات السمادية و طرائق التعبئة المختلفة في زيادة القدرة التخزينية لصنف الجزر نانتس Nantes

الملخص EN

The experience was carried out at Abi-Jarash farm, Faculty of Agriculture, Damascus University during the 2012 - 2013 growing season.

During plant growth, three fertilization treatments were applied (mineral, T1 organic, T2 and a combined of mineral and organic fertilizers, T3).

At harvesting, roots were packed in three different ways (box, perforated polyethylene bags and non-perforated polyethylene bags) and stored in 4-5˚C and RH 90% for 94 days.

Results indicated that plants of T3 had significantly higher carotenoids content (0.0198 mg/100 g fresh weight) comparing with T2 and T1 (0.0161, 0.0173 mg/100 g fresh weight, respectively).

The highest content of the total soluble solids was found in the plants of treatment T1 (12.44%), whereas the non-perforated polyethylene bags packing treatment PEP0 had the highest percentage of acidity (0.86%).

The packaging treatments showed a significant impact in reducing the percentage of weight.

Its maximum was observed in the boxes B (150.1%) and the lowest lost percentage was found in the nonperforated polyethylene bags treatment (40.24%).

Boxes packing (B) had significantly higher carotenoids content (0.0211mg/100 g fresh weight) as compared to other treatments.

The interaction between the combined treatment and the non-perforated polyethylene bags packing treatment (T3*PEP0) had a significant superiority in the content of vitamin C (335 mg/l juice).