Correlation of Yield and its Components in some Induced Mutant Lines in Wheat (Triticum aestivum L.)

The wheat varietie, s: C273. MexiPak 65 and Chenab 70 and their mutant lines: 3, 17, 216, 244, 399 and 432 derived after a treatment with different doses of gamma radiation from C06^0 source, were grown in a randomized complete block design at Nuclear Institute fcr Agriculture and Biology, Lyallpur. Correlations between various morphological characters and yield component were worked out. Pleduction in plant height from optimum level showed an adverse effect on one thousand grain weight and yield per plant except semi-dwarf mutant line 216. Plant height was negatively correlated with spike length and number of spikelets per spike. Spike length showed a positive correlation with number of spikelets per spike and yield per plant. Correlation between number of spikelets per spike and one thousand grain weight was negative.