Abstract:
The study was carried out at the College of Agricultural Studies,
Sudan University of Science and Technology at Shambat, during the period
from July to October 2009. The main object of this research is to study
variability and correlation in eleven genotypes of forage sorghum (Sorghum
bicolor L. Moench) for some morphological characters. A complete
randomized block design with three replications was used. The parameters
measured were plant height, leaf area, number of leaves per plant, stem
diameter and days to 50% flowering. Phenotypic and genotypic variances,
VI
phenotypic and genotypic coefficient of variation and interrelationships
among different growth parameters were investigated.
The analysis of variance revealed highly significant differences (p≤
o.o1) among genotypes for most growth parameters. Leaf area showed the
highest value of phenotypic variance, while plant height exhibited the
highest value for genotypic variance. The highest values for phenotypic and
genotypic coefficient of variation were
obtained by plant height that
showed positive and non- significant phenotypic and genotypic correlation
with all growth characters other than days to 50% flowering. Correlation
between days to 50% flowering with each of plant height and number of
leaves was significantly positive. Leaf area was significantly negative
correlation with plant height. The genotypes panar 888, Ankolib traditional
and Ankolib S- 18 scored the highest values of plant height, number of
leaves / plant and leaf area, respectively.
