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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 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

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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

Int.J.Curr.Microbiol.App.Sci.2021.10(3): 1020-1025
DOI: https://doi.org/10.20546/ijcmas.2021.1003.129


Response of different Micro-Climatic Regimes on Productivity and Economics of Aerobic Rice (Oryza sativa L.) Varieties in Assam
Bidisha Borah1* and Kalyan Pathak2
Krishy Vigyan Kendra Nagaon, College of Agriculture, Jorhat,   Assam Agricultural University, 785013, India
*Corresponding author
Abstract:

A field experiment was conducted in the Instructional Cum Research (ICR) Farm of Assam Agricultural University, Jorhat, Assam during autumn season of 2017. The experiment was laid out in a split-plot design with three replications. The treatments consisted of four micro-climatic regimes (M) in main plot viz., sowing of seed on 15th February (M1), 1st March (M2), 16th March (M3) and 1st April (M4) along with four different rice varieties (V) viz., CR-Dhan 205 (V1), CR-Dhan 203 (V2), CR-Dhan 204 (V3) and Inglongkiri (V4) in sub plot. The results of the experiment revealed that among the different micro-climatic regimes, the micro-climate associated with 1st April recorded positive effect on growth and yield parameters in terms of number of total tillers, dry matter accumulation, number of effective tillers and grain yield (3004 kg/ha), followed by the micro-climate associated with 16th March sown crop. Among the varieties evaluated, CR-Dhan 203 recorded the highest value in terms of number of total tillers, dry matter accumulation and number of effective tillers (187/m2) followed by Inglongkiri, CR-Dhan 204 and CR-Dhan 205. The highest grain yield of 2860 kg/ha recorded in rice variety CR-Dhan 203 was significantly superior to that of other varieties except Inglongkiri. In terms of economics, the crop sown on 1st April recorded the highest net return (51755 /ha) and B:C ratio (2.30) which was found to be best.


Keywords: Dry matter, Upland rice, Effective tillers, Growth, Seeding date
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How to cite this article:

Bidisha Borah and Kalyan Pathak. 2021. Response of different Micro-Climatic Regimes on Productivity and Economics of Aerobic Rice (Oryza sativa L.) Varieties in Assam.Int.J.Curr.Microbiol.App.Sci. 10(3): 1020-1025. doi: https://doi.org/10.20546/ijcmas.2021.1003.129