Browsing by Author "IBRAHIM, ALI MOHAMMED"
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ThesisItem Open Access EFFECT OF ORGANIC PRODUCTION ON GROWTH, YIELD, SHELF LIFE AND JUICE QUALITY OF TOMATO (Lycopersicon esculentum Mill(MAHATMA PHULE KRISHI VIDYAPEETH RAHURI-423 722, DIST. AHMEDNAGAR MAHARASHTRA (INDIA), 2008-06-04) IBRAHIM, ALI MOHAMMED; Masalkar, Dr.S.D; Patil, Dr.R.S; Bhalekar, Dr.M.N; Chavan, Dr.U.DThe present investigation was carried out at Tomato Improvement Scheme, MPKV, (Raburi during years 2006-2007 with the view to study the effect of organic production on growth, yield, shelf life and juice quality of tomato (Lycopersicon esculentum Miff.) Two sets of experiments were conducted viz. a field experiment consisting of five treatments and four replications and a laboratory investigation comprising of 5 x 4 x 2 (production system x packaging treatments x storage conditions) factorial experiment with three replications. Highly significant differences were observed in respect of growth as measured 6y plant height, leaf area and leaf area index Treatment T4 (RDF + FYM) had the maximum plant height, leaf area and leaf area index while % (neem cake + biofertilizers) manifested the poorest growth. Significantly high total yield (40.21 t ha-1), marketable yield(37.901 h-1), yield per plant (1.45 kg) and number of fruits per plant (21.95) were recorded in % (RDF + FYM) followed by T2 (vermicompost) (32.58 t h-1) (Furthermore, T4 (RDF + FYM) had maximum number of flowers, fruits and fruit set percentage per truss while % had the least number flowers, fruits and fruit set percentage. Organic tomatoes in general and T3 in particular had significantly better firmness than inorganic tomatoes. On the other hand, T4 resulted in the maximum juice recovery (85.45%) and minimum pomace percentage (9.41 %) while % had the minimum juice recovery (78.08%) and conversely, the maximum pomace percentage (13.90%). Other than this, there were no significant differences in respect of polar and equatorial fruit diameters, pericarp thickness and fruit shape index. Similarly, the difference in the biochemical constituents of fresh fruits viz. sugars, titratable acidity, sugar to acid ratio, TSS, ascorbic acid,β-carotene and lycopene were not statistically significant. (From the findings of the current investigations, it is vivid that % had better shelf life in both Kharif (9.50 day) and rabi (8.25 days) seasons while the lowest was in T5 (7.50 days). The maximum physiological loss in weight (17.71%) after ten days storage was recorded in % (RDF + FYM)), which was very closely followed by T5 (RDF) (17.47%) while the least (16.43%) was observed in % (neem cake + bioferilizers). It is apparent that those inorganic treatments (T4 and T5) suffered the maximum physiological loss in weight and high rotting percentage as compared to all organic treatments. (Biochemical changes in fresh fruits during storage were quite significant in particular sugars, ascorbic acid and titratable acidity on 8th and 10th day of storage, however, there were no appreciable changes in TSS, β-carotene and lycopene content of fruits. The organoleptic evaluation conduct under both kharif and rabi seasons show, considering the overall acceptance of the fresh fruits, T2 was found to be with the highest score followed by % (RDF + FYM) while the lowest was in T5. Furthermore, there was a general trend of a slight initial increase and subsequent decline in the over all organoleptic quality of the fruits. (Fruits from inorganic testaments were faster to lose their organoleptic quality and this might be due to the high loss in sugar and significantly more (PWL. The level of pesticide residue in fresh fruits was considerably high in inorganic treatments. Of all the pesticides sprayed, only endosulfan was detected in the fresh fruits during the kharif season. The other pesticides viz. Marashal(Carbosulfan), Desis (Detametrin), Sparky (Detametrin + Trazophos) and (Biltox (Coperoxychloride) were found to be below detectable level(