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A time-window within the grain filling period accounted for early leaf senescence in maize under sink limitation
Dosio, Guillermo; Cicore, Pablo Leandro; Rizzalli, Roberto Héctor (Elsevier, 2024-01)In annual crops such as maize, assimilates demand exerted by grains converges with increasing leaf senescence. As sink demand changes as grains growth, leaf senescence could also be affected during the grain filling period. ... -
Identification of candidate genes associated with leaf senescence in cultivated sunflower (Helianthus annuus L.)
Moschen, Sebastian; Bengoa Luoni, Sofia Ailin; Paniego, Norma Beatriz; Hopp, Horacio Esteban; Dosio, Guillermo Aníbal Adrián; Fernandez, Paula Del Carmen; Heinz, Ruth Amelia (PLOS, 2014)Cultivated sunflower (Helianthus annuus L.), an important source of edible vegetable oil, shows rapid onset of senescence, which limits production by reducing photosynthetic capacity under specific growing conditions. ... -
Impacto de enfermedades foliares del girasol y herramientas para el manejo de Alternaria helianthi y Phoma macdonaldii en el Sudeste Bonaerense.
Quiroz, Facundo Jose (Universidad Nacional de Mar del Plata; Facultad de Ciencias Agrarias, 2015-09-10)El objetivo de esta tesis fue cuantificar la importancia de las enfermedades foliares del girasol en el sudeste bonaerense, y generar conocimientos y herramientas para el manejo de la mancha de la hoja por A. helianthi ... -
Increases in the source to sink ratio related to a higher carbohydrate concentration reduce phoma black stem in sunflower
Nuñez Bordoy, Evangelina; Quiroz, Facundo Jose; Dosio, Guillermo (Springer Netherlands, 2018-03)Phoma black stem (BS), caused by Leptosphaeria lindquistii (synonymous Phoma macdonaldii Boerema) is an endemic disease of sunflower in Argentina and occurs worldwide. The expression of some diseases is related to the ... -
Sunflower: a potential fructan-bearing crop?
Martínez-Noël, Giselle M. A.; Dosio, Guillermo; Puebla, Andrea Fabiana; Insani, Ester Marina; Tognetti, Jorge (2015-10)Grain filling in sunflower (Helianthus annuus L.) mainly depends on actual photosynthesis, being the contribution of stored reserves in stems (sucrose, hexoses, and starch) rather low. Drought periods during grain filling ... -
The application of K phosphites to seed tubers enhanced emergence, early growth and mycorrhizal colonization in potato (Solanum tuberosum)
Tambascio, Cecilia; Covacevich, Fernanda; Lobato, Maria Candela; de Lasa, Carolina; Caldiz, Daniel Osmar; Dosio, Guillermo; Andreu, Adriana Balbina (Scientific Research, 2014-01)Rapid emergence and a vigorous growth prevent the seed tubers from infections by soil microbes and allow a rapid interception of solar radiation. In this work, the effect of the potassium phosphites (KPhi) applied to seed ...