INFLUENCE OF COCONUT VARIETIES ON YIELD AND QUALITY OF COCONUT INFLORESCENCE SAP-NEERA

Biju Joseph, R Reghu, R Gladis, B Aparna
2018 Indian J.Sci.Res   unpublished
A study was conducted with four varieties of coconut namely Malayan Yellow Dwarf (MYD), Keragnga , West Coast Tall (WCT) and Kerasree to study the influence of coconut varieties on yield and quality parameters of coconut inflorescence sap(CIS). The results revealed that the tall variety of coconut West coast tall had the highest CIS yield of 3.14 l day-1 which was significantly higher than the hybrids and dwarf varieties.. The pH of CIS is near neutral (6.6-6.8). The electrolyte concentration
more » ... CIS was observed to be the highest in WCT (0.21 dS m 1), which was on par with Keraganga (0.19 dS m-1) and Kerasree (0.19 dS m-1). Reducing sugar was found to be the highest in tall variety WCT which was on par with the hybrid. The non reducing sugar content of sap was significantly higher in the dwarf variety MYD which was on par with WCT. The highest total sugar content was associated with the variety WCT which was on par with Malayan yellow dwarf and Keraganga. The CIS from the different varieties had alcohol content ranging from 0.09 % (MYD) to 0.04 % (WCT). This highest alcohol content was associated with the dwarf variety Malayan yellow dwarf which was on par with Kerasree. Phenol content in CIS ranged from 4.02 mg 100 ml-1 (MYD) to 5.71 mg 100 ml-1 (WCT). The highest vitamin C content was in the variety WCT which was on par with MYD and Kerasree. The total mineral content was the highest in WCT (2.32%).
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