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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 5
First page : (985) Last page : (989)
Article doi: : http://dx.doi.org/10.18782/2320-6757

Morpho-Physiological Characterization of Rabi Sorghum (Sorghum bicolor L.) Genotypes for Drought Adaptive Traits under Medium Soils

Kiran, B. O.*, S. S. Karabhantanal**, I. S. Katageri and M. B. Boranayaka

*Scientist (Physiology), ** Scientist (Entomology) AICRP on Sorghum Improvement, Regional Agricultural Research Station, Vijayapur, University of Agricultural Sciences, Dharwad-580005 
*Corresponding Author E-mail: kiranbo@uasd.in
Received: 1.08.2018  |  Revised: 30.08.2018   |  Accepted: 7.09.2018  

 ABSTRACT

Sorghum (Sorghum bicolor L. Moench) is one of the five major cereals in the world. It is generally considered to be more drought tolerant than maize and is often cropped under rainfall conditions.  This study was conducted to identify superior drought adaptive sorghum genotypes under medium soils which include thirteen lines with three checks (M 35-1, P. Suchitra and P. Anuradha). The biomass and leaf area was significantly higher in BJV 125 (119 g plant-1 and 1587 cm2 plant-1) at 50% flowering compared to checks. However, RSV-1822, CRS-68 and BJV-371 recorded higher LAI (2.070, 2.217 and 2.017, respectively). The SPAD values and relative water content in leaf was maximum in BJV 125 (52.54 and 83.55%, respectively) followed by BJV 371 (46.33 and 83.66%). The total chlorophyll content was significantly higher in P. Anuradha and RSV 1822 (2.486 and 2.367 mg g-1 fr. wt.) at 50 % flowering. Further, the results on yield and associated traits indicated that, test weight and harvest index was significantly higher in CRS-67 (45.13 g and 46.55, respectively) followed by BJV 371 (40.63 g and 47.13, respectively). Similarly, grains per panicle and grain yield was higher in BJV-371 (2446 and 3085 kg ha-1) followed by BJV-129 (2357 and 2938 kg ha-1). The experiment inferred that, genotype BJV 371 and BJV 129 were found more adaptive to drought condition and may provide better source for breeding/developing heat tolerant genotypes in rabi sorghum 

Key words: Test weight, Relative water content, Chlorophyll, Harvest index, Grain yield

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

Cite this article: Kiran, B.O., Karabhantanal, S.S., Katageri, I.S. and Boranayaka, M.B., Morpho-Physiological Characterization of Rabi Sorghum (Sorghum bicolor L.) Genotypes for Drought Adaptive Traits under Medium Soils, Int. J. Pure App. Biosci.6(5): 985-989 (2018). doi: http://dx.doi.org/10.18782/2320-7051.6757