General and specific combining ability studies for leaf area in some maize inbreds in agroecological conditions of Kosovo.

摘要

This study was conducted to evaluate the leaf area (LA) of 10 maize inbred lines and their F₁ hybrids. Based on a diallel (without reciprocals), general (GCA) and specific combining ability (SCA) were calculated. The components of the genetic variance were calculated using Griffing's (1956) method 2. The maximum LA value was determined for the combination L6 x L10 (788.6 cm2), whereas the minimum was recorded for L4 x L5 (558.9 cm2). The average value of F₁ generation was 678.8 cm2 and the variation range was from +109.8 cm2 to -119.9 cm2. Both the GCA and SCA for LA were significant at p=0.01. The highest value of GCA was obtained for L2 (+31.33), whereas the lowest was recorded for L4 (-38.07). The highest value of SCA was determined for L6 x L10 (+156.73).