International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 1
First page : (504) Last page : (512)
Article doi: http://dx.doi.org/10.18782/2320-7051.2511

Dry Matter Production, Photosyntheticaly Active Radiation and Radiation use Efficiency Response of Cluster Bean as Influenced by Genotypes and Planting Density

Nandini, K. M.*, Sridhara, S. and Kiran Kumar
Department of Agronomy, University of Agricultural and Horticultural Sciences, Shivamogga (Karnataka)
*Corresponding Author E-mail: nandiniagri018@gmail.com
Received: 25.01.2017  |  Revised: 7.02.2017   |  Accepted: 9.02.2017  

ABSTRACT

A field experiment was conducted during kharif  2014 at ZAHRS, Shivamogga to examine the response of three cluster bean genotypes viz., RGC-1003, RGC-936 and HG-365 with four planting densities viz., 45 cm x 15 cm, 30 cm x 15 cm, 45 cm x 10 cm and30 cm x 10 cm. Growth and yield observations were taken in 15 days interval until crop reaches physiological maturity. The experiment was conducted by using randomized complete block design with factorial concept. The spacing of 30 cm x 10 cm planting density was recorded higher total dry matter, leaf area, LAI and interception of light during most of the growth period and attained full radiation interception at 90 DAS than other planting densities. The intercepted PAR, extinction coefficient (k) and radiation use efficiency (RUE) increased with higher planting density. Dry matter production was significantly correlated with RUE (r=0.065). The RUE higher value obtained were (2.14 MJ m-2) for RGC-1003 compared to other genotypes. It was noticed that the conversion efficiency of incident PAR to dry matter production varied much with three genotypes and four levels of spacing. The production of dry matter or productivity of cluster bean is corresponding to solar radiation.

Key words:Cluster Bean, Spacing, Dry matter production, PAR and RUE

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Nandini, K.M., Sridhara, S. and Kumar, K., Dry Matter Production, Photosyntheticaly Active Radiation and Radiation use Efficiency Response of Cluster Bean as Influenced by Genotypes and Planting Density, Int. J. Pure App. Biosci.5(1): 504-512 (2017). doi: http://dx.doi.org/10.18782/2320-7051.2511