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Influence of broomrape on some productivity indices of sunflower

Show simple item record Gisca, Ion Joita-Pacureanu, Maria Clapco, Steliana Duca, Maria 2021-04-09T07:08:27Z 2021-04-09T07:08:27Z 2017
dc.identifier.citation Gisca, Ion, Maria Joita-Pacureanu, Steliana Clapco, Maria Duca. 2017. "Influence of broomrape on some productivity indices of sunflower". Lucrări Ştiinţifice USAMV - Iaşi Seria Agronomie 60(2): 97-102.
dc.description.abstract The action of the holoparasite Orobanche cumana Wallr. on sunflower may be very different, from the non-visible damage of plant tissues and the stagnation of host plant development until its death. Depending on the aggressiveness of the broomrape and the climatic conditions, the yield losses vary within 5-90%, affecting the quantity and quality (protein and lipids content) of the seeds. The aim of present investigation was to study some productivity indices, such as hectolitre weight and 1000-seed weight, plant height, head diameter, number of seeds per head in a series of experimental and commercial hybrids from the Republic Moldova and Romania in the conditions of infestation. The analyses were performed during 2012 and 2013 years in the field with natural infection. As a control serves the productivity indices of hybrids in the field without infection. It was established that Orobanche cumana affects significantly the productivity indexes of sunflower hybrids. The degree of infestation correlates, in particular, with the head diameter and seeds yield per head, and lesser with the plant's height. Thus, in the case of a strong attack, the productivity losses in most cases exceed 20%, with maximum values (30-40%) in susceptible hybrids Doina and Performer characterized by the highest attack degree (60-70%). The values of the analyzed productivity indices vary a lot depending on the genotypes. So some hybrids (e.g. the Milenium hybrid) are tolerant to broomrape and endure pathogen attack with low losses. The data obtained are of major interest in the development and proposal of key intervention and control measurements in integrated pest management programs. en_US
dc.language.iso en en_US
dc.publisher “Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi en_US
dc.subject Orobanche cumana Wallr. en_US
dc.subject sunflower en_US
dc.subject plant height en_US
dc.subject head diameter en_US
dc.subject number of seeds per head en_US
dc.subject attack degree en_US
dc.title Influence of broomrape on some productivity indices of sunflower en_US
dc.type Article en_US Ion Gisca, AMG Agroselect Comerţ Maria Joita-Pacureanu, Agricultural Research and Development Institute Fundulea Steliana Clapco, Maria Duca, University of Academy of Sciences of Moldova
dc.publicationName Lucrări Ştiinţifice USAMV - Iaşi Seria Agronomie
dc.volume 60
dc.issue 2
dc.publicationDate 2017
dc.startingPage 97
dc.endingPage 102
dc.identifier.eissn 2069-6727

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