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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 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
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 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(5): 1429-1437
DOI: https://doi.org/10.20546/ijcmas.2017.605.156


Growth Performance and Radiation Use Efficiency of Transplanted Rice under Varied Plant Densities and Nitrogen Levels
R. Swarna, P. Leela Rani*, G. Sreenivas, D. Raji Reddy and A. Madhavi
Department of Agronomy, College of Agriculture, Professor Jayashankar Telangana state Agricultural University, Rajendranagar, Hyderabad - 500 030, India
*Corresponding author
Abstract:

A field experiment was conducted at Agricultural Research Institute, Rajendranagar, Hyderabad during the Kharif season of 2012 with four nitrogen levels (120 kg ha-1, 180 kg ha-1, 240 kg ha-1 and 300 kg ha-1) as factor one and three plant densities - farmers practice – zigzag planting (28 hills m-2), 15×15 cm (44.44 hills m-2), 25×25 cm (16 hills m-2) as factor two in randomized block design with factorial concept replicated thrice. Increased number of tillers m-2, leaf area index (LAI), intercepted radiation and radiation use efficiency (RUE) was noticed with increased plant density from 16 to 44.44 hills m-2. Application of 300 kg N ha-1 showed more number of tillers m-2, LAI, intercepted radiation and RUE and was onpar with 180 kg N ha-1. A highly significant linear relationship observed between cumulative intercepted photosynthetically active radiation (PAR) and biomass production. So plant density of 44.44 hills m-2 and application of 180 kg N ha-1 could be considered as optimum for improved growth and radiation use efficiency of transplanted rice in South Telangana Region of Telangana State.


Keywords: Leaf Area Index (LAI), Nitrogen, Plant densities, PAR, RUE, Rice.
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How to cite this article:

Swarna, R., P. Leela Rani, G. Sreenivas, D. Raji Reddy and Madhavi, A. 2017. Growth Performance and Radiation Use Efficiency of Transplanted Rice under Varied Plant Densities and Nitrogen LevelsInt.J.Curr.Microbiol.App.Sci. 6(5): 1429-1437. doi: https://doi.org/10.20546/ijcmas.2017.605.156