engleski

Contribution of plant breeding to long-term agronomic trait changes in maize hybrids FAO 100 and 200

The purpose of this study was to assess improvements in performance of maize hybrids during a 20-year period. Data on FAO 100 and 200 hybrids, released by the former Yugoslay Committee for Releasing Varieties, were utilized. For FAO 100 hybrids group, yield increased 0.0015 Mg ha(-1) year(-1), but was not significant. Breeding resulted in a significant decrease in days to silking. In the FAO 200 group, yield increased on the average 0.046 Mg ha(-1) year(-1). The genetic gain was not significant. A performance index, based on yield and several other traits, increased significantly during the period for both groups of hybrids, but the increase due to breeding was significant for the FAO 200 hybrids only. [References: 11]

nije evidentirano

nije evidentirano