Genotype Environment Interaction in Grass Pea (Lathyrus sativusL.) Lines

Abstract

Eight grass pea lines grown in three different seasons were evaluated for the stability of seed yield, 100 seeds weight, flowering time, plant height, and biomass. Significant differences existed among years, lines, and lines years interaction for all traits except for 100 seeds weight. Two methods of multivariate analysis cluster and principal components were utilized to determine: firstly, whether a pattern existed among lines in their response across years and secondly to examine the relationships among them. In both analyses, each line was presented as a vector whose elements were given by the performance of lines in each year. The analyses used arranged the lines into groups that were differentiable in terms of performances and stability. Our results provide useful information to aid the choice of grass pea lines in the Mediterranean marginal areas.

Environmental effect on yield, composition and technological seed traits of some Italian ecotypes of grass pea (Lathyrus sativus L.)

“…The ANOVA results are shown in Table 5. Previous studies reported that seed size is a rather stable trait in grass pea 39, 40. This study showed that, in addition to seed size, also for coat percentage there was no interaction with growing season and location (Table 5).…”

Characterization of Italian grasspea (Lathyrus sativus L.) germplasm using agronomic traits, biochemical and molecular markers

“…The obtained dendrogram was used for grouping the landraces in the scatter diagram of the first two principal components. A similar method was followed by Polignano et al (2009) studying genotype 9 environment interaction in grasspea lines.…”

ODAP levels in some Lathyrus species distributed on Burdur-Isparta provinces in Turkey

“…Further studies are needed to shed light on the genetic control of ODAP, its metabolic pathway, and (Lambein et al 2007) the role of the G 9 E (genotype 9 environment) interaction in grass pea breeding strategies (Polignano et al 2009). Many genetically modified organisms (GMOs) have been developed, especially in response to food demands of Third World countries.…”