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Characterisation of resistance to crenate broomrape (Orobanche crenata Forsk.) in Lathyrus cicera L

Author:
Fernández-Aparicio, M., Rubiales, D.
Source:
Euphytica 2010 v.173 no.1 pp. 77-84
ISSN:
0014-2336
Subject:
Lathyrus cicera, forage legumes, forage crops, Orobanche crenata, parasitic plants, weeds, biological resistance, root systems, dry matter accumulation, genetic variation, phenotype, seed germination, root radicle, host plants, plant vascular system
Abstract:
Field, pots and mini-rhizotrons experiments revealed the existence of useful levels of avoidance and resistance to Orobanche crenata Forsk. within Lathyrus cicera L. accessions, in addition to escape due to precocity or to reduced root biomass. This resistance was characterized by several phenotypic mechanisms of defence which acted alone or in combination, including low stimulation of parasitic seed germination, prevention of the radicle penetration inside the root and prevention of a correct connection by the parasite with the host vascular tissue being visible by reduced development of established parasitic tubercles or abortion of the parasitic tubercles formed.
Agid:
781553