RT Journal Article T1 Broomrape as a Major Constraint for Grass Pea (Lathyrus sativus) Production in Mediterranean Rain-Fed Environments A1 Rubiales Olmedo, Diego A1 Barilli, Eleonora A1 Flores Gil, Fernando AB Grass pea (Lathyrus sativus) is an annual legume crop that is currently underutilized buthas the potential for reintroduction into Mediterranean rain-fed farming systems. In this study,we compared the adaptation of breeding lines in multi-environment field testing, which had widevariation for precocity, grain yield and broomrape infection. Heritability-adjusted genotype plusgenotype-by-environment interaction (HA-GGE) biplot and non-metric multidimensional scaling(NMDS) were performed to determine the effect on genotype (G), environment (E) and G × Einteraction on grain yield, precocity and broomrape infection. Precocity was associated with reducedbroomrape infection, and this with increased grain yield. Step-wise regression analysis revealed thatthe broomrape infection had the highest influence on grain yield, whereas precocity had a lower effect.Rain and humidity and mild temperatures before and during flowering were the climatic factors mostinfluential on broomrape. Accessions with a shorter growth cycle suffered lower broomrape infectionand were more productive in the environments with a high broomrape incidence. Accessions withlonger growth cycle suffered overall higher broomrape infection and were therefore more productivein the environments with low or moderate broomrape incidence. PB MDPI SN 2073-4395 YR 2020 FD 2020-12 LK http://hdl.handle.net/10272/19528 UL http://hdl.handle.net/10272/19528 LA eng NO Rubiales Olmedo, D., Barilli, E., & Flores Gil, F. (2020). Broomrape as a Major Constraint for Grass Pea (Lathyrus sativus) Production in Mediterranean Rain-Fed Environments. Agronomy, 10(12), 1931. DOI: https://doi.org/10.3390/agronomy10121931 DS Repositorio Institucional de la Universidad de Huelva RD 31 may 2026