Abstract
Yellow sweet Spanish onion cultivars and numbered hybrids were evaluated for disease resistance, bulb yield, and bulb size in field trials on a soil heavily infested with the pathogens that cause pink root and basal rot. Hybrid lines exhibited lower incidence of basal rot and pink root than named cultivars in both 1990 and 1991. Resistance to basal rot was not closely related to level of pink root infection. Hybrids that exhibited a low level of pink root infection had the healthiest roots and produced the highest bulb yields. Extensive replacement of infected roots with healthy new roots was a common characteristic of pink root-resistant hybrids. Adoption of numbered onion hybrids resistant to pink root and basal rot could reduce the current dependence on fumigation as the primary control method for these soilborne diseases.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
