Correlation studies on some promising newly-evolved wheat varieties of the Punjab revealed that variety yields in certain cases were more closely related to ear weight than to tillering capacity. Greater emphasis on ear weight appeared advisable for obtaining high yields under late sowing, making the choice of heavy-eared varieties more imperative for cultivation under such conditions.
The spikelet fertility showed consistently greater association with variety yields. It is hence essential to treat spikelet fertility as the foundation block for synthesis-ing specialised varieties.
Grain quality and grain yield were found to be paired at random in different varieties and it is considered a practical possibility to combine these characters in a single variety. Similarly, grain size and fertility of spikelet were randomly assorted in different varieties suggesting chances of favourable combinations of these two characters.
The stiffness of straw, as measured by weight per unit length, showed high correlation with resistance to lodging but the factor of tallness, if present in stiff strawed varieties, reduced their capacity to withstand lodging.
Environmental factors responsible for high yield were not attended by a corresponding increase in tillering but by increase in kernel size, which, in part, took place at the expense of spikelet fertility.
