Evaluation of the performance and heterosis in F1 crosses of yellow and red maize | ||||
| Journal of Plant Production | ||||
| Article 10, Volume 16, Issue 6, June 2025, Page 349-356 PDF (621.46 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2025.390344.1470 | ||||
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| Authors | ||||
M. A. Abdel-Moneam  ; S. E. Seadh; Soad H Haffez; Manaar M. Tawfik
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| Department of Agronomy, Faculty of Agriculture, Mansoura University, Egypt. | ||||
| Abstract | ||||
| In season 2024, 24 genotypes of maize 6 inbred line, 15 cross and 3 check cultivars (S.C168, Gold and Yaqoyt5) were evaluated at the private Farm of the Department of Crops, Faculty of Agriculture, Mansoura University in RCBD with three replicates. The results showed that mean squares of genotypes, parents, crosses and parents versus crosses were significant or highly significant for flowering, vegetative, yield and yield components and quality traits. The data indicated highly significant differences for anthesis, silking dates and anthesis- silking interval (ASI) traits among the parental inbreds, their crosses and check cultivars. P2(Red C) showed the earliest parent for anthesis, silking dates and ASI. All traits had significant heterosis over mid and pater parent except, grain yield per plant. Crosses P1xP4 and P2xP5 had negative and highly significant percentage of heterosis over mid (M.P) and better parent (B.P) for anthesis date and over mid parent for silking except ASI date. Cross P1xP6 (46.48 – 38.99%) had positive heterosis over mid parent and better parent respectively, for grain yield per plant. Positive significant heterosis over better and better parent were exhibited by 3 crosses P1xP2, P1xP5 and P3xP5 for shelling percentage. All crosses had positive significant heterosis over mid and better parent except, two crosses P1xP2 and P3xP4 for mid-parent and P3xP4 for better parent for oil percentage. | ||||
| Keywords | ||||
| Maize; mean performance; heterosis; grain yield; yield components | ||||
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