Abstract:
his study was conducted to evaluate the performanc
e of forage pea (
Pisum sativum
spp
.
arvense
L.) genotypes, in terms of fresh forage yield and
associated traits, when
grown on the Kiziltepe Plain, Mardin, Turkey. Field
trials were performed during the
2007-08 and 2009-2010 growing seasons. The experime
nts were arranged according to
randomized block design with three replications. Th
e following trait ranges were
reported: Days to 50% flowering: 147.5-162.5 days,
Natural plant height
and Main Stem
Height: 45.58-72.75 cm, Main stem height: 52.52-100
.42 cm, Main stem numbers per
plant: 1.275-1.658 stems plant
-1
, Main stem thickness: 2.913-3.703 mm, Fresh forage
yield:
10.43-23.83 t ha
-1
and Dry matter yield: 2.525-5.891 t ha
-1
. GGE (i.e., G+GE) biplot
analysis showed that the two growing seasons were m
arkedly
different,
stemming
exclusively from differences in rainfall amounts be
tween the two growing seasons. Results
of this study showed that the lines 88P00-1-4-9-661
(1) and P101 (6), and cultivar Kirazli
(9) were superior in terms of fresh forage yield, d
ry matter yield, natural plant height and
days to 50% flowering traits. At the same time, PC2
scores of these genotypes were found
near to zero, so, they were identified as stable ge
notypes for the investigated traits. In
conclusion, in terms of forage yield, these three f
orage pea genotypes are recommended
for the Kiziltepe Plain growing conditions.
Keywords:
Biplot analysis, Dry matter yield, Forage yield com
ponents, Genotype×year
interaction, Kiziltepe Plain.
