Abstract
Potential acreage of berseem clover has been increased by the recent release of ‘Bigbee’ berseem clover ( Trifolium alexandrinum L.). Bigbee berseem clover was evaluated to determine if root‐knot nematodes ( Meloidogyne arenaria, M. incognita , and M. javanica ) may be a limiting factor in new berseem production areas compared with other legumes with similar geographic adaptation. Root‐knot nematode interaction with 15 other germplasm sources of berseem clover was also evaluated in at least one of three separate tests. Eight berseem germplasms were severely galled by the mixed population of Meloidogyne spp. present in the field test. All nine germplasm sources of berseem clover, including Bigbee, were severely galled by M. arenaria , M. javanica , and M. incognita race 3 in the two greenhouse experiments. Gall scores were not significantly different than for the known susceptible host ‘Amclo’ arrowleaf clover ( T. vesiculosum Savi.), but were signficantly more severe than for ‘Dixie’ crimsom clover ( T. incarnatum L.). ‘Florida 77’ alfalfa ( Medicago sativa L.) proved to be highly resistant to all three Meloidogyne species studied. Field investigations are needed to determine if root‐knot nematodes would limit the production of Bigbee berseem clover similarly to the way they limit production of arrowleaf clover.
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Claims 5
Claim · model-written summary
All nine berseem clover germplasm sources, including Bigbee, were severely galled by three Meloidogyne species in greenhouse experiments.
- Taxon
- berseem clovere1
- Material
- Bigbeee1
- Interactor
- M. arenaria
.jpg?width=60)
Meloidogyne arenariae1pathogen - Outcome
- severely gallede1
- Setting
- greenhouse experimentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e1“All nine germplasm sources of berseem clover, including Bigbee, were severely galled by M. arenaria , M. javanica , and M. incognita race 3 in the two greenhouse experiments”
Claim · model-written summary
Berseem clover gall scores did not differ significantly from the susceptible arrowleaf clover.
Verbatim
e1“All nine germplasm sources of berseem clover, including Bigbee, were severely galled by M. arenaria , M. javanica , and M. incognita race 3 in the two greenhouse experiments”
e2“Gall scores were not significantly different than for the known susceptible host ‘Amclo’ arrowleaf clover”
Claim · model-written summary
Berseem clover gall scores were significantly more severe than those of crimson clover.
Verbatim
e1“All nine germplasm sources of berseem clover, including Bigbee, were severely galled by M. arenaria , M. javanica , and M. incognita race 3 in the two greenhouse experiments”
e2“Gall scores were not significantly different than for the known susceptible host ‘Amclo’ arrowleaf clover”
e3“but were signficantly more severe than for ‘Dixie’ crimsom clover”
Claim · model-written summary
Florida 77 alfalfa was highly resistant to all three Meloidogyne species studied.
- Taxon
- Medicago sativa
Medicago sativae4 - Material
- Florida 77e4
- Interactor
- Meloidogyne species
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogynee4pathogen - Outcome
- highly resistante4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e4“‘Florida 77’ alfalfa ( Medicago sativa L.) proved to be highly resistant to all three Meloidogyne species studied”
Claim · model-written summary
Eight berseem germplasms were severely galled by the mixed Meloidogyne population in the field test.
- Taxon
- berseeme5
- Interactor
- Meloidogyne spp.Meloidogynee5pathogen
- Outcome
- severely gallede5
- Setting
- field teste5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Eight berseem germplasms were severely galled by the mixed population of Meloidogyne spp. present in the field test”