National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
A field experiment was conducted during Kharif season of 2008 -2009 at the Main Cotton Research Station, Surat, Navsari Agricultural University to study the “Effect of tillage depth and irrigation levels on cotton under South Gujarat condition”. Nine treatment combinations comprising three tillage depth in main plot viz. normal tillage up to7.5 cm (Di), tillage up to 15 cm (D2) and tillage up to 22.5 cm (D3) as well as three irrigation levels in sub plot viz. two irrigations at 25 and 50 days after cessation of rainfall with 80 mm diw at each irrigation (I2), two irrigations at 25 and 75 days after cessation of rainfall with 60 mm diw at each irrigation (I2) and three irrigations at 25, 50 and 75 days after cessation of rainfall with 60 mm diw at each irrigation (l3) were evaluated in split plot design with three replications. Ginning percent failed to get level of significance because it is genetically controlled character. Lint index were significantly higher with treatment D3 (tillage upto 22.5 cm). Fibre strength, maturity ratio and elongation showed significant effect due to increase in tillage depth. Significantly the highest fibre strength, maturity ratio and elongation were recorded under treatment D3 (tillage upto 22.5 cm). Fibre fineness, 2.5 per cent span length, length uniformity ratio did not show any significant effect because these are genetically controlled character. Scheduling of irrigation to the crop with three irrigations at 25, 50 and 75 days after cessation of rainfall with 60 mm diw at each Irrigation (l3) resulted in significantly the highest fibre elongation and in case of fibre strength
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