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 |
The study entitled “Effect of spacing and detopping on seed yield of Sunhemp” was conducted in Kharif 2023 in split plot design with four replications. Two factors were studied viz., Spacing (S1- 45 cm x 10 cm, S2- 45 cm x 15 cm, S3- 60 cm x 10 cm) in main plots and detopping (D1- Control, D2- 45 DAS and D3- 60 DAS) in sub plots. The individual plant performance with respect to number of branches plant-1, dry matter accumulation plant-1, and days to 50 % flowering was found maximum under the spacing of 60 cm x 10 cm whereas seed yield ha-1 and stalk yield ha-1 was obtained maximum and significantly higher with the spacing 45 cm x 10 cm. Detopping at 45 DAS recorded maximum reduction in plant height and recorded maximum branches plant-1 and dry matter accumulation plant-1, while number of capsule plant-1 found maximum under topping at 60 DAS. Seed yield plant-1 and test weight recorded maximum under the detopping at 45 at DAS. Seed yield ha-1 found maximum under detopping at 45 DAS while, stalk yield ha-1 was found maximum under detopping at 60 DAS. As regards of economics, spacing of 45 cm x 10 cm (S1) recorded highest gross monetary returns (77136 Rs ha-1) and net monetary returns (55312 Rs ha-1), while detopping at 45 DAS (D1) recorded maximum and significantly higher gross monetary return and net monetary returns.
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