Physiological studies on hybrids and parents in relation to dry matter accumulation and its distribution and growth parameters in sorghum

Surwenshi, A. and Chimmad, V.P. and Ravikumar, R.L. (2007) Physiological studies on hybrids and parents in relation to dry matter accumulation and its distribution and growth parameters in sorghum. Karnataka Journal of Agricultural Sciences, 20 (1). pp. 17-20.

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Abstract

Field experiments were conducted during rabi seasons of 2000-01 and 2001-02 at Main Agricultural Research Station, University of Agricultural Sciences, Dharwad to study various morpho-phenological characters in 16 hybrids along with their eight male and two female parents using randomized block design. The dry matter production reached maximum at 50% flowering and the hybrids, 117A x DRR-1,117A x DRR-2, 117A x DRR-3 and 117A x DRR-5 recorded significantl higher dry matter and yield when compared to either of the parents. The stem dry matter decreased at a higher rate in hybrids from 50 % flowering to maturity in hybrids than their parents. Higher dry matter accumulation resulted in higher values for growth par ameters viz., AGR, CGR, RGR and NAR. The parents DRR-1, DRR-2 and DRR-10 and their hybrids recorded significantly higher values for AGR, while the parents DRR-1, DRR-10 and 9-25 and the hybrids 401-A x DRC-400, 117-A x 9-25 and 117-A x DRC-500 recorded significantly higher RGR values. The NAR values were significantly higher in parent 117-A and in hybrids 117-A x DRR-2 and 117-A x AB-Local.

Item Type:	Article
Author Affiliation:	Department of Crop Physiology, University of Agricultural Sciences, Dharwad - 580 005, Karnataka, India
Subjects:	Plant Physiology and Biochemistry > Plant Physiology
Divisions:	Sorghum
Depositing User:	David T
Date Deposited:	02 Dec 2010 16:41
Last Modified:	29 Dec 2010 20:07
Official URL:	http://203.129.218.157/ojs/index.php/kjas/article/...
URI:	http://eprints.icrisat.ac.in/id/eprint/850

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