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Asian Journal of Plant Sciences

Year: 2003 | Volume: 2 | Issue: 12 | Page No.: 887-890
DOI: 10.3923/ajps.2003.887.890
Variability and Correlations Study in Different Newly Developed Sunflower Hybrids
Asif Khan, Ihsan Ullah, S.Bilal Murtaza and M. Yousaf Khan

Abstract: A study was conducted to evaluate the performance of different local hybrids developed by NARC, Oilseed Research Programme. Analysis of variance, LSD test and correlation coefficients were performed to check the differences among hybrids and correlations of grain yield (GY) with different traits like days to flower initiation (DFI), days to flower completion (DFC), plant height (PH), head diameter (HD), days to physiological maturity (DPM), number of grains per head (NGPH), number of filled grains per head (NFGPH), 100-grain weight (100-GW) and oil content (OC). Highly significant differences for DFI, DFC, PH, DPM and GY while significant differences for 100-GW and non-significant differences for HD, NGPH, NFGPH and OC were observed among the hybrids. Hybrid Hysun-33 showed the highest yield of 2128 kg ha-1 followed by SF-187 with 2040 kg ha-1 while SMH-2002-4 and SMH-2002-19 ranked third and fourth in terms of yield with 1908 kg ha-1 and 1862 kg ha-1 respectively. Correlation of HD with DPM and 100-GW was highly significant and positive and non-significant with NFGPH, GY and OC. DPM were significantly and positively correlated with DFI, DFC, HD, 100-GW and OC and non-significantly correlated with PH and GY. NGPH were significantly correlated with NFGPH and had negative and non-significant correlations with DFI, HD and OC. Correlation of NFGPH with NGPH, PH, GY and 100-GW was significantly positive. 100-GW was significantly and positively correlated with DFI, DFC, HD, DPM, NFGPH and GY while non-significantly correlated with PH, NGPH and OC. Grain yield was significantly and positively correlated with DFI, DFC, PH, NFGPH and 100-GW. Correlation data indicate that selection for days to flower completion, plant height, number of filled grains per head and 100-grain weight will be effective for higher grain yield.

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How to cite this article
Asif Khan, Ihsan Ullah, S.Bilal Murtaza and M. Yousaf Khan, 2003. Variability and Correlations Study in Different Newly Developed Sunflower Hybrids. Asian Journal of Plant Sciences, 2: 887-890.

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