INVESTIGADORES
CAVAGNARO pablo Federico
artículos
Título:
Vernalization requirement, but not post-vernalization day length, conditions flowering in carrot (Daucus carota L.)
Autor/es:
WOHLFEILER, J.; ALESSANDRO, M. S.; MORALES, A.; CAVAGNARO, P. F.; GALMARINI, C. R.
Revista:
Plants
Editorial:
Multidisciplinary Digital Publishing Institute (MDPI)
Referencias:
Lugar: Basilea; Año: 2022 vol. 11 p. 1075 - 1084
ISSN:
2223-7747
Resumen:
Carrots require a certain amount of cold hours to become vernalized and proceed to the reproductive stage, and this phenomenon is genotype-dependent. Annual carrots require less amount of cold than biennials to flower; yet, quantitative variation within annuals and biennials also exists defining a gradient for vernalization requirement (VR). The flowering response of carrots to day length, after vernalization has occurred, is controversial. This vegetable has been described both as a long-day and a neutral-day species. The objective of this study was to evaluate flowering time and frequency in response to different cold treatments and photoperiod regimes in various carrot genotypes. To this end, three annual genotypes from India, Brazil, and Pakistan, and a biennial carrot from Japan were exposed to 7.5 °C during 30, 60, 90, or 120 days, and then transferred to either long day (LD) or short day (SD) conditions. Significant variation (p