International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 1
First page : (362) Last page : (367)
Article doi: http://dx.doi.org/10.18782/2320-7051.2472
Physiological Parameters Leaf Area Index, Crop Growth Rate, Relative Growth Rate and Net Assimilation Rate of Different Varieties of Rice Grown Under Different Planting Geometries and Depths in SRI
Archana Rajput1*, Sujit Singh Rajput2 and Girish Jha1
1Department of Agronomy, J.N.K.V.V., Jabalpur (M.P.)
2Department of Food technology, J.N.K.V.V., Jabalpur (M.P.)
*Corresponding Author E-mail: archanarajput3880@gmail.com
Received: 12.01.2017 | Revised: 23.01.2017 | Accepted: 24.01.2017
ABSTRACT
An experiment was conducted during the kharif seasons of 2010 and 2011 at Krishi Nagar farm, Adhartal Department of Agronomy, JNKVV Jabalpur to study the physiological and yield responses of improved varieties of rice grown under different planting geometries and depths of planting in system of rice keeping in to maximize the production efficiency and monetary advantage in rice by adopting suitable planting geometry, varieties and depth of planting. The result revealed that the 30 cm × 30 cm planting geometry had superiority in NAR were significantly influenced by plant geometry. But the 20 cm × 20 cm planting geometry had superiority in various parameters viz; leaf area index, crop growth rate and relative growth rate were significantly in plant geometry. However, during 60-90 DAT growth stage, closer spacing recorded more NAR due to more number of tillers per meter square and leaves per unit area but all stages NAR increase with spacing. Rice variety MR-219 with shallow depth of planting (2.5 cm) was markedly superior in growth parameters viz., LAI, CGR, RGR and NAR under edaphic and climatic conditions.
Key words: Varieties, LAI, CGR, NAR, planting geometry, depth of planting and Rice
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Rajput, A., Rajput, S.S. and Jha, G., Physiological Parameters Leaf Area Index, Crop Growth Rate, Relative Growth Rate and Net Assimilation Rate of Different Varieties of Rice Grown Under Different Planting Geometries and Depths in SRI, Int. J. Pure App. Biosci. 5(1): 362-367 (2017). doi: http://dx.doi.org/10.18782/2320-7051.2472
