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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
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Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(6): 1022-1028
DOI: https://doi.org/10.20546/ijcmas.2020.906.127


Varietal Comparison in Relation to Inflorescence Sap Yield and Quality in Coconut
R. S. Raghu1 and Biju Joseph2*
1Agricultural College, Bapatla-522101, ANGRAU, India
2College of Agriculture, Vellayani-695522, Kerala Agricultural University, India
*Corresponding author
Abstract:

A field experiment was conducted at Nileswaram farm, Regional Agricultural Research Station, Pilicode, Kerala Agricultural University during 2014-2016 to study the Influence of varieties on yield and qualities of coconut inflorescence sap. The varieties tried were Malayan Yellow Dwarf, Kerasree, West Coast Tall and Keraganga. Fully emerged unopened bunches were selected for tapping. The sap yield was measured for the harvesting 21st day after starting of tapping. Sample for chemical analysis were also collected on the same day. From the results it was revealed that the varieties varied significantly with respect to coconut inflorescence sap yield. It was maximum in the tall variety West Coast Tall (3.14 L/day) followed by the hybrid varieties Kerasree (2.09 L/day) and Keraganga (1.80 L/day). The dwarf variety Malayan Yellow Dwarf gave the lowest coconut inflorescence sap yield of 0.84 L/day. The varieties did not vary significantly with respect to pH and phenol content of coconut inflorescence sap. Non reducing sugar dominated over reducing sugar in all the varieties. More than 95 % of the total sugars in all varieties were contributed by non reducing sugars. Non reducing sugar content of sap was significantly higher in the dwarf variety Malayan Yellow Dwarf and tall variety West Coast Tall. Reducing sugar was highest in the tall variety West Coast Tall which was on par with hybrid Kerasree and significantly superior to the hybrid Keraganga and dwarf variety Malayan Yellow Dwarf. The varieties West Coast Tall and Malayan Yellow Dwarf were superior with respect to vitamin C content.


Keywords: Biochemical properties, Coconut inflorescence sap, MYD, Varieties, WCT and Yield
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How to cite this article:

Raghu, R. S. and Biju Joseph. 2020. Varietal Comparison in Relation to Inflorescence Sap Yield and Quality in Coconut.Int.J.Curr.Microbiol.App.Sci. 9(6): 1022-1028. doi: https://doi.org/10.20546/ijcmas.2020.906.127