COMPARATIVE STUDIES ON PHYSICO-CHEMICAL CHANGES DURING GROWTH AND DEVELOPMENT OF KAGZI LIME (Citrus aurantifolia Swingle) FRUIT
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Date
2003-12-30
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MAHATMA PHULE KRISHI VIDYAPEETH RAHURI-413 722, DIST. AHMEDNAGAR MAHARASHTRA STATE (INDIA)
Abstract
A study was undertaken regarding growth and development of kagzi lime fruit at the Department of Horticulture, Mahatma Phule Krishi Vidyapeeth, Rahuri, during Hasta bahar of the year 2002. The physico-chemical changes in the fruits of five cultivars viz. Sai-Sharbati, Pramalini, Vikram, PKM-1, Local Kagzi lime and five genotypes viz. RHR-L122, RHR-L-124, RHR-L-159, RHR-L-174 and RHR-L-243 were studied at 30 days intervals from anthesis till 170th day of fruit development. The physical parameters such as weight, volume, length, diameter and biochemical parameters such as TSS, acidity, sugars and ascorbic acid content were studied. The fruit growth in respect of weight, volume, length and diameter showed a single sigmoid growth curve. The growth period of fruit could be broadly divided into three phases based on the rate of growth. XV. Abstract Contd....The growth rate of fruit in respect of weight was found maximum during phase II. The specific gravity of fruit showed a declining trend with advancement in the age of fruit. The fruit colour changed from dark green to yellow colour on maturity during growth and development. The rind thickness increased up to 60-90th day and then it was decreased continuously. The maximum number of seeds were found in fully developed fruit at 150 days. Percentage of juice was increased during the growth and development. The maximum increase in juice content was found between 90-120 days after anthesis. The total soluble solids showed decreasing trend but was negligible where as titrable acidity was a positively correlated with fruit growth and development. The total sugars, reducing sugars and non reducing sugars decreased with advancement in the age of fruit. While the ascorbic acid content of juice showed decreasing trend with fruit development. After considering the physico-chemical parameters, it could be suggested that Kagzi lime fruits of Hasta bahar matured within a period of 160 days after anthesis and can be harvested any time after 160 and before 170 days of fruit growth to obtain fully ripe quality.
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