Title: Combining ability study for yield kernel per ear of maize (Zea mays L.) hybrid.
Abstract: The main objective of this study was to evaluate the yield per ear of 10 inbred lines and their F1 hybrids, based on a diallel cross (without reciprocals) General Combining Ability (GCA) and Specific Combining Ability (SCA). The components of the genetic variance were calculated using Griffing‘s formula (1956), method 2, mathematic model I. Additive gene effects were more important than non additive since the ratio was 0.13 among GCA and SCA. The highest value for maximal YK/E was heterozygote combination from inbred lines A6xA10 (xg = 299.4 g/ear), while minimal average value obtained for hybrid combination was A1xA10 (171.4g/ear).The variation between largest and smallest YK/E for hybrid combination was 128 g or 55%.ANOVA‘s test for combination ability of GCA and SCA effects were highly significant at the LSD p=0.05 and 0.01 level of probability, respectively.
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
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Cited By Count: 1
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