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- Title
Estimation of Combining Ability in Maize Lines Using a Diallel Cross.
- Authors
Hussein, Mohammed Ali; Haji, Samih E.; Ramadan, Shapal
- Abstract
The objective was to select maize (zea mays L.) lines, based on the effects of general combining ability (GCA) and specific combining ability (SCA). During spring and autumn 2013, 20 single crosses with the combination of five lines of maize were evaluated, to estimate the GCA and SCA effect, the method 2 model (1) of Griffing was used in randomize complete block design with three replication. The results revealed that there are lines with good GCA, as DKC648 and Thal-A1059 for traits, leaf area, No. of kernels row-1, 3000 kernel weight, kernels yield plant-1 and protein percent. The cross ATha7AAX ATha-132, pak. X DK C648, ATha-132x ATha-7AA and pak. x Thaal-A1059 showed the greatest effect of SCA for traits, Leaf area, No. of rows ear-1, No. of kernels row-1, 300 kernel weight, kernels yield plant-1 and oil percent, considering that there is greater additive gene action. The crosses DKC648X pak., ATha7AAXATha-133, ATha7AAX DKC648, ATha-132X DCC648 exhibited maximum yield plant-1 with values, 162.99, 158.78, 156.38 and 155.50g respectively. The uses of diallel design to estimate GCA and SCA in bred lines and their crosses allowed knowing the most efficient breeding method.
- Subjects
CORN breeding; PROTEINS; BLOCK designs; WEIGHTS &; measures of plants; METHODOLOGY
- Publication
International Journal of Pure & Applied Sciences & Technology, 2015, Vol 27, Issue 2, p87
- ISSN
2229-6107
- Publication type
Article