Publication Date
1997
Description
A leaf screening procedure developed by Wittenberg et al. (in preparation) for detection of plants resistant or susceptible to fungal growth after cutting was compared with fungal growth on whole plants were chopped and stored under warm humid conditions in the laboratory or wilted and baled in a simulated field trial. Four genotypes previously identified as having low, variable and high susceptibility to fungal growth after harvest were used. Extent of fungal growth, as measured by glucosamine analysis, for plant material chopped and incubated under conditions conducive to molding, supported plant resistance ratings as determined by the screening procedure. Minimal fungal growth across all genotypes in the simulated field wilting made comparative evaluation impossible. Mini bales incubated under simluated stack storage conditions for 9 d showed glucosamine differences between the resistant and susceptible genotypes supporting the screening methodology. A screening of 1144 genotypes representing 22 cultivars of alfalfa for post-harvest resistance to fungal growth demonstrated that there is variation for this trait.
Citation
Babij, V I.; Wittenberg, K M.; and Smith, S R. Jr, "Alfalfa (Medicago sativa L.) Screening for Post-Harvest Fungal Resistance" (2024). IGC Proceedings (1997-2023). 18.
https://uknowledge.uky.edu/igc/1997/session14/18
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Alfalfa (Medicago sativa L.) Screening for Post-Harvest Fungal Resistance
A leaf screening procedure developed by Wittenberg et al. (in preparation) for detection of plants resistant or susceptible to fungal growth after cutting was compared with fungal growth on whole plants were chopped and stored under warm humid conditions in the laboratory or wilted and baled in a simulated field trial. Four genotypes previously identified as having low, variable and high susceptibility to fungal growth after harvest were used. Extent of fungal growth, as measured by glucosamine analysis, for plant material chopped and incubated under conditions conducive to molding, supported plant resistance ratings as determined by the screening procedure. Minimal fungal growth across all genotypes in the simulated field wilting made comparative evaluation impossible. Mini bales incubated under simluated stack storage conditions for 9 d showed glucosamine differences between the resistant and susceptible genotypes supporting the screening methodology. A screening of 1144 genotypes representing 22 cultivars of alfalfa for post-harvest resistance to fungal growth demonstrated that there is variation for this trait.
