Variability and grain yield potential of maize (Zea mays L.) genotypes under irrigated condition in central Sudan

M.B. Alhussein1, S.H. Suliman2, A.A. Mohammed3

 

1Maize research program, Agricultural Research Corporation, Wad Medani, Sudan

2Crop sciences section, Faculty of Agricultural Sciences, University of Gezira, Wad Medani, Sudan

3Maize research program, Agricultural Research Corporation, Wad Medani, Sudan

 

DOI: 10.15547/ast.2018.03.038

(Manuscript received 25 May 2018; accepted for publication 27 August 2018)

 

Abstract. These experiments were conducted in two different sites to study the genetic variability and the mean performance of the elite different origin maize genotypes under irrigated condition in central region of Sudan during rainy season of 2015. The experiments were arranged in randomized complete block design with three replicates, the data were collected on days to 50% tasseling and silking, plant and ear height, ear length and diameter and grain yield. The analysis of variance for each site and cross sites showed a significant variability among tested genotypes for grain yield, days to 50% tasseling and silking, plant and ear height, ear length and diameter. Also significant differences were observed for genotypes, site and a cross site for most of the studied traits such as for grain yield, days to 50% tasseling and silking, plant and ear height, ear length and diameter. The combined results for genotypic coefficients of variability and broad sense heritability estimates grain yield, ear length and ear diameter varied significantly among the tested genotypes.