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 entitled “Performance of compact cotton genotypes under high density planting system in irrigated condition” was conducted at Agricultural College, Raichur during Kharif 2016-17 and 2017-18 on medium black soil, neutral in nature with low available nitrogen, medium phosphorus and high in potassium. The experiment was laid out in split plot design with three compact cotton genotypes viz., G1: SCS-1206, G2: DSC-99 and G3: Suraj as main plot treatments and three planting geometries viz., S1: 60 cm x 10 cm, S2: 75 cm x 10 cm and S3: 90 cm x 10 cm as sub plot treatments and it was compared with conventional system of cotton cultivation with Bt cotton hybrid ATM with recommended spacing of 90 cm x 60 cm. Among the different compact cotton genotypes, G1: SCS-1206 recorded highest seed cotton yield (2886 kg ha-1) followed by genotype G3: Suraj (2754 kg ha-1) which were significantly superior over genotype G2: DSC-99 (2486 kg-1). Among the different planting geometries, a closer row spacing of S1: 60 cm x 10 cm recorded significantly higher seed cotton yield (2896 kg ha-1) over a medium row spacing of S2: 75 cm x 10 cm (2758 kg ha-1) and significantly lower seed cotton yield was recorded with a wider row spacing of S3: 90 cm x 10 cm (2472 kg ha-1). Among the different combinations, the genotype G1: SCS-1206 grown at S1: 60 cm x 10 cm spacing recorded significantly higher seed cotton yield (3096 kg ha-1) and it was found at par with the combination of same genotype G1: SCS-1206 with S2:75 cm x 10 cm spacing (2949 kg ha-1) and genotype G3: Suraj with S1: 60 cm x 10 cm spacing (2923 kg ha-1). cotton grown under conventional system with Bt cotton hybrid ATM at a recommended spacing of 90 cm x 60 cm recorded significantly lower seed cotton yield (2314 kg ha-1) when compared with the all the treatment combinations of cotton grown under HDPS except with the combinations of genotype G2: DSC-99 at S2:75 cm x 10 cm spacing and genotype G2: DSC-99 at S3: 90 cm x 10 cm spacing (2525 and 2263 kg ha-1, respectively).
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