MEAN PERFORMANCE, CORRELATION AND PATH COEFFICIENT ANALYSIS FOR GRAIN YIELD AND ITS COMPONENTS IN BREAD WHEAT

Abstract: Phenotypic and genotypic correlation coefficients (rp and rg) and path coefficient for eight traits were estimated in 36 genotypes of bread wheat (Triticum aestivum L). High estimates of rp and rg indicated scope for improvement through simple selection for days to heading, no. of spikes per plant and 1000 – grain weight . path analysis showed the importance of days to heading, no-of spikes per plant and 1000 – grain weight . Direct effects of no-of spikes/plant, no-of spikelets per spike, spike weight and 1000-grain weight were mostly found to be most important contributing traits for grain yield simple correlation and path coefficient analysis were applied to yield components to determine their functional relationships to yield in wheat .
The obtained results are summarized as follows :
1. Grain yield showed highly significant and positive correlation with days to heading, no. of spike per plant and 1000-grain weight at the two levels of correlations .
2. Number of spikes per plant and number of spikelets per spike per plant had a high direct relationships with grain yield per plant .
3. Wheat cultivar number (8) and crosses number (1x2) , (1x3) , (1x4) , (1x5) , (1x6) , (1x7) , (2x6) , (3x4) and (3x5) were selected as a superior genotypes which gave the highest mean performance for grain yield and most contributing traits .
Publication year 2007
Pages 444-458
Availability location 9 شارع الجامعة- الجيزة
Availability number
Organization Name
serial title Egypt. J. of Appl. Sci.
Author(s) from ARC
Agris Categories Agriculture - General aspects
AGROVOC
TERMS		 Grain. Soft wheat.
Publication Type Journal
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