EVALUATION OF THE RUBY MANGO CULTIVAR FOR THE MANUFACTURE OF NECTAR, MARMALADE, AND CANNED SLICES IN HEAVY SYRUP
Plant growth, yield, fruit quality and fruit performance characteristics were evaluated for transparent (T1)-, white (T2)-, black (T3)-, silver coated black plastic (T4) mulched, organic mulched, (T5) and non-mulched (T6) peppers (var. Cubanelle) under drip irrigation during winter and summer of 1981-82. Values of plant growth parameters, fruit weight, fruit width and length were significantly higher at 5% level during the winter than during the summer in each treatment thus resulting in increased winter pepper yield. T1 plots caused lowest pepper yield at 5% compared to yield of T2, T3, T4, T5 and T6. The percentage of defective peppers was highest at 5% level during the summer than during the winter. Second harvest had highest fruit weight at 5% level in comparison with third and fourth harvests during the winter and summer.
Two plantain cultivars grown commercially in Puerto Rico, known as Guayamero and Maricongo, were compared in regard to their suitability for processing. Both cultivars were found to have a similar flowering and bunch-development pattern. The fruit from both cultivars was similar in pulp composition and texture. The Maricongo cultivar was found to be a higher yielder than the Guayamero, both in terms of number and weight of fruit produced per cuerda. No difference in yields or quality was observed when plantain chips, ripe plantains cooked in syrup, and fried green plantain slices were prepared from both cultivars.
Onions (Var. Texas Grano 502) were drip irrigated in December 1982 at the Fortuna Agricultural Research and Development Center to evaluate the effects of water application rates (wet = T1, moist = T2 and dry = T3) and various planting densities (S1, S2, S3 and S4) on crop performance. The evaluation characteristics were size arrangement and percentage distribution in each USDA size class, total solids percentage, defects percentage, onion volume, weight, density and commercial yield. The bulbs were significantly larger at 5% in T2 than in T1 and T3 in size classes X and XII. More than 50% of the onions were in size classes 1 to 5 and 16 to 19, respectively. Two rows of onions on both sides of the drip line yielded significantly more at the 5% level compared with the yield of one row on both sides of the drip line. The wet treatment outyielded the dry treatment at the 5% level. The yield differences were not significant at the 5% level between wet and moist treatments. The bulbs were heavier when plant spacing was increased from 7.5 cm to 15 cm.
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