Escape and true resistance to crenate broomrape (Orobanche crenata Forsk.) in grass pea (Lathyrus sativus L.) germplasm
Grass pea (Lathyrus sativus L.) is an annual cool season legume widely grown as a pulse crop for human food and animal feed and as forage. Infection by the parasitic weed crenate broomrape (Orobanche crenata Forsk.) has been identified as major constraint for grass pea cultivation. We studied the response to O. crenata of a germplasm collection of grass pea in field trials over two seasons showing that the level of infection was highly influenced by environmental factors and plant growth cycle. Earlier or very late accessions were less infected. O. crenata infection increased with host plant vigour. O. crenata infection strongly reduced host biomass and grain yield. Even when resistance is scarce and masked by confounding environmental and plant growth cycle factors, calculation of the deviations from the polynomic nonlinear regression provided an improved approximation of the true genetic resistance levels present in the germplasm, here defined as resistance that do not depend on precocity. © 2011 Elsevier B.V.
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Format: | artículo biblioteca |
Language: | English |
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Elsevier
2012-01-18
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Subjects: | Grass pea, Orobanche, Escape, Host-plant resistance, Broomrape, Lathyrus sativus, |
Online Access: | http://hdl.handle.net/10261/87781 |
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dig-ias-es-10261-877812018-01-31T14:51:05Z Escape and true resistance to crenate broomrape (Orobanche crenata Forsk.) in grass pea (Lathyrus sativus L.) germplasm Fernández-Aparicio, Mónica Flores, Fernando Rubiales, Diego Grass pea Orobanche Escape Host-plant resistance Broomrape Lathyrus sativus Grass pea (Lathyrus sativus L.) is an annual cool season legume widely grown as a pulse crop for human food and animal feed and as forage. Infection by the parasitic weed crenate broomrape (Orobanche crenata Forsk.) has been identified as major constraint for grass pea cultivation. We studied the response to O. crenata of a germplasm collection of grass pea in field trials over two seasons showing that the level of infection was highly influenced by environmental factors and plant growth cycle. Earlier or very late accessions were less infected. O. crenata infection increased with host plant vigour. O. crenata infection strongly reduced host biomass and grain yield. Even when resistance is scarce and masked by confounding environmental and plant growth cycle factors, calculation of the deviations from the polynomic nonlinear regression provided an improved approximation of the true genetic resistance levels present in the germplasm, here defined as resistance that do not depend on precocity. © 2011 Elsevier B.V. We are greatly indebted to Spanish ProjectAGL2008-01239/AGR for financial support and to CRF-INIA for providing the germplasm accessions. Peer Reviewed 2013-11-28T12:37:46Z 2013-11-28T12:37:46Z 2012-01-18 2013-11-28T12:37:46Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.1016/j.fcr.2011.09.003 issn: 0378-4290 Field Crops Research 125: 92-97 (2012) http://hdl.handle.net/10261/87781 10.1016/j.fcr.2011.09.003 en none Elsevier |
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Grass pea Orobanche Escape Host-plant resistance Broomrape Lathyrus sativus Grass pea Orobanche Escape Host-plant resistance Broomrape Lathyrus sativus |
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Grass pea Orobanche Escape Host-plant resistance Broomrape Lathyrus sativus Grass pea Orobanche Escape Host-plant resistance Broomrape Lathyrus sativus Fernández-Aparicio, Mónica Flores, Fernando Rubiales, Diego Escape and true resistance to crenate broomrape (Orobanche crenata Forsk.) in grass pea (Lathyrus sativus L.) germplasm |
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Grass pea (Lathyrus sativus L.) is an annual cool season legume widely grown as a pulse crop for human food and animal feed and as forage. Infection by the parasitic weed crenate broomrape (Orobanche crenata Forsk.) has been identified as major constraint for grass pea cultivation. We studied the response to O. crenata of a germplasm collection of grass pea in field trials over two seasons showing that the level of infection was highly influenced by environmental factors and plant growth cycle. Earlier or very late accessions were less infected. O. crenata infection increased with host plant vigour. O. crenata infection strongly reduced host biomass and grain yield. Even when resistance is scarce and masked by confounding environmental and plant growth cycle factors, calculation of the deviations from the polynomic nonlinear regression provided an improved approximation of the true genetic resistance levels present in the germplasm, here defined as resistance that do not depend on precocity. © 2011 Elsevier B.V. |
format |
artículo |
topic_facet |
Grass pea Orobanche Escape Host-plant resistance Broomrape Lathyrus sativus |
author |
Fernández-Aparicio, Mónica Flores, Fernando Rubiales, Diego |
author_facet |
Fernández-Aparicio, Mónica Flores, Fernando Rubiales, Diego |
author_sort |
Fernández-Aparicio, Mónica |
title |
Escape and true resistance to crenate broomrape (Orobanche crenata Forsk.) in grass pea (Lathyrus sativus L.) germplasm |
title_short |
Escape and true resistance to crenate broomrape (Orobanche crenata Forsk.) in grass pea (Lathyrus sativus L.) germplasm |
title_full |
Escape and true resistance to crenate broomrape (Orobanche crenata Forsk.) in grass pea (Lathyrus sativus L.) germplasm |
title_fullStr |
Escape and true resistance to crenate broomrape (Orobanche crenata Forsk.) in grass pea (Lathyrus sativus L.) germplasm |
title_full_unstemmed |
Escape and true resistance to crenate broomrape (Orobanche crenata Forsk.) in grass pea (Lathyrus sativus L.) germplasm |
title_sort |
escape and true resistance to crenate broomrape (orobanche crenata forsk.) in grass pea (lathyrus sativus l.) germplasm |
publisher |
Elsevier |
publishDate |
2012-01-18 |
url |
http://hdl.handle.net/10261/87781 |
work_keys_str_mv |
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