Vol. 17 No. 2
Effect of land configurations, genotypes and mulching on growth parameters and yield of yellow pericarp sorghum under rainfeed conditions
Author(s): K. J. REDDY, G. S. MADHUBINDU, S.A. HUSSAIN AND M. U. DEVI
Abstract: A field experiment was conducted during kharif, 2018-19 at College of Agriculture, PJTSAU, Rajendranagar, Hyderabad to study the effect of land configurations, genotypes and mulching on growth parameters and yield of yellow pericarp sorghum under rainfed conditions in sandy clay loam soil. The treatments included land configurations viz., Flat bed, Ridge and furrow, Broad bed and furrow, Flat bed + Mulch, Ridge and Furrow + Mulch, Broad bed and furrow + Mulch and yellow sorghum genotypes viz., Palem yellow pericarp sorghum(PYPS) 101,102, 103 and 104. Pongamia leaves were applied as mulch @ 6 t ha-1 uniformly at 20 DAS. The results of the present investigation showed that different land configurations and genotypes significantly increased growth parameters and yield. But the interaction between land configurations and genotypes was found to be nonsignificant. Yellow sorghum under broad beds and furrows with mulch recorded significantly higher grain yield (1701 kg ha-1) resulting in increased yield by 37 % of yellow sorghum over flatbed. Ridges and furrow with mulch was found to be the secondbest treatment, with a grain yield of 1590 kg ha-1. Mulched treatments of flat bed, ridge and furrow and broad bed and furrow increased the grain yield by 20%, 28% and 37%, respectively, compared to flatbed without mulch. Correspondingly, Palem yellow pericarp sorghum 102 recorded significantly higher grain yield (1585 kg ha-1). However, it was on par with PYPS 103 (1508 kg ha-1). Broad bed and furrow with mulch was most effective in achieving higher plant height, leaf area, leaf area index (LAI), dry matter production (DMP) followed by ridges and furrows with mulch. Similarly,Palem yellow pericarp sorghum 102 genotype showed significantly higher potential with respect to all growth parameters and yield, closely followed by Palem yellow pericarp sorghum 103.
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