Consulta: creatorFacets:"GHEREKHLOO,J."
Registros recuperados: 3
Data/hora: 13/06/2024 05:35:59

AN INNOVATIVE METHOD TO EVALUATE THE IMPACT OF TEMPERATURE ON IODOSULFURON-METHYL SELECTIVITY TO OAT CROP
Provedor de dados: 87
Autores: VIDAL,R.A.; FIPKE,M.V.; QUEIROZ,A.R.S.; SOARES,D.S.; GHEREKHLOO,J.
ABSTRACT Temperature affects the selectivity of post-emergence herbicides in a complex manner. The objective of this work was to develop a method to estimate the impact of temperature on herbicide selectivity using the white oat (Avena sativa) crop and iodosulfuron-methyl as study models. Greenhouse/growth-chamber experiments were conducted using a completely randomized design with the treatments arranged as a bi-factorial, with three repetitions. The first factor consisted of six temperatures (10, 15, 20, 24, 28 and 32 oC) to which the plants were submitted during one week after the herbicide spray. The second factor corresponded to seven doses of iodosulfuron-methyl (0, 0.2, 0.4, 0.8, 1.2, 5 and 20 g ha-1). For each temperature, regression curves were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Avena sativa; Crop tolerance; Environmental factors; Herbicide detoxification.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100246

Assessing Genetic Variation and Spread of Phalaris minor Resistant to ACCase Inhibiting Herbicides in Iran
Provedor de dados: 87
Autores: GHEREKHLOO,J.; ALCÁNTARA-DE LA CRUZ,R.; OSUNA,M.D.; SOHRABI,S.; PRADO,R.
ABSTRACT: Littleseed canarygrass (Phalaris minor) is the second most serious and problematic grass weed in wheat fields in Iran, and has developed resistance to ACCase inhibiting herbicides. Inter-simple sequence repeat (ISSR) analysis was used to assess genetic variation between and within ACCase inhibitor-resistant and susceptible P. minor populations in Iran and to determine the origin of resistance and its dispersal. Sixteen P. minor populations from different regions in Iran were analysed using seven primers. Genetic relationships generated using UPGMA analysis indicated the presence of more than one genotype among the herbicide resistant populations. The results indicated that the high genetic similarity and physical proximity among the resistant P....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dendrogram; Herbicide resistance; ISSR; Genotype; UPGMA.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100226

Comparing Fitness Cost Associated with Haloxyfop-R Methyl Ester Resistance in Winter Wild Oat Biotypes
Provedor de dados: 87
Autores: HASSANPOUR-BOURKHEILI,S.; GHEREKHLOO,J.; KAMKAR,B.; RAMEZANPOUR,S.S.
ABSTRACT: Consecutive application of herbicides has led to the evolution of herbicide-resistant weeds. This resistance is often associated with a fitness cost. Hence, a completely randomized design experiment with three replications was conducted to evaluate the fitness cost of haloxyfop-R methyl ester resistant winter wild oat biotypes (Avena ludoviciana Durieu) possessing Ile-2041-Asn mutation compared to susceptible ones. The pre-germinated F2 generation winter wild oat biotypes were sown in 0.2 m2 pots containing 50 cm of silty-loam soil outdoors and their growth parameters including tiller number, plant height, leaves per plant, leaf area per plant, chlorophyll content index, leaf dry weight, and plant dry weight were measured 30, 70, 100, 115 and 130...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Avena ludoviciana Durieu; Growth indices; Pleiotropic effects; Ile-2041-Asn.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100242