Abstract:
A mutation breeding programme with the goal to genetically improve the capacity of a wheat variety, Lu-26 to produce high yield with high grain protein was initiated at NIFA in 1980. Variety Lu-26 was subjected to 25 and 30 krad doses of gamma rays from "Co source. A number of mutants were selected in different generations and out of which eight mutants having high yielding potential were put in a trial using lu-26 and Pak-81 as checks. Regarding plant height, spike length, grains per spike, grain weight per spike, grain yield per hectare, moisture%, ash, protein, crude fat and crude fibre, the mutants differed significantly from the parent and standard variety. Plant height associated positively with spike length, number of grains and groin weight per spike, grain yield per hectare, ash and moisture, while negative correlation of plant height was observed with protein, crude fat and crude fibre. Similarly spike length was negatively correlated with number of grains and grain weight per spike, crude fat and crude fibre, however, correlation of spike legnth with grain yield per hectare, protein, ash and moisture was positive. Significantly positive correlation was observed between number of grains per spike and grain weight per spike while spike length associated with all other trials except yield per hectare. Grain yield per spike and grain yield per hectare both were negatively correlated with protein, ash, crude fibre and crude fat.
Page(s):
355-362
DOI:
DOI not available
Published:
Journal: Sarhad Journal of Agriculture, Volume: 1, Issue: 2, Year: 1985