Abstract
The effect of introgression of the temperate maize population BUGARD on the grain yield of a low-yielding tropical maize population well appreciated for the quality of its grains, NCP80, was studied. NCP80 was crossed with BUGARD to obtain the F1. The BC1 obtained by backcrossing the F1 to NCP80 was random mated thrice. The tropical parent NCP80 and the BC1 (NBN) were evaluated in two tropical locations using a randomized complete block design with three replications. Introgression of the temperate population BUGARD into the tropical population NCP80 significantly increased grain yield. The resulting population, NBN, appeared, moreover, significantly earlier than NCP80 and not significantly different from it for resistance to rust, tropical blight and maize streak, ear height, husk cover and harvest index. NBN may, further, be improved for resistance to maize streak and grain yield by recurrent selection.
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Claims 5
Claim · model-written summary
Introgression of the temperate population BUGARD into the tropical population NCP80 significantly increased grain yield in two tropical locations.
- Treatment
- Introgression of the temperate population BUGARDe0
- Outcome
- grain yielde0
- Direction
- increasede0
- Comparator
- tropical population NCP80e0
- Setting
- two tropical locationse1
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tropical Maize Population”
e0“Introgression of the temperate population BUGARD into the tropical population NCP80 significantly increased grain yield”
e1“evaluated in two tropical locations”
Claim · model-written summary
The NBN population was significantly earlier than NCP80.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tropical Maize Population”
e2“The resulting population, NBN, appeared, moreover, significantly earlier than NCP80”
Claim · model-written summary
NBN did not differ significantly from NCP80 in resistance to rust, tropical blight and maize streak.
- Material
- NBNe2
- Treatment
- Introgression of the temperate population BUGARDe0
- Outcome
- resistance to rust, tropical blight and maize streake4
- Direction
- not significantly differente4
- Comparator
- NCP80e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tropical Maize Population”
e0“Introgression of the temperate population BUGARD into the tropical population NCP80 significantly increased grain yield”
e2“The resulting population, NBN, appeared, moreover, significantly earlier than NCP80”
e4“not significantly different from it for resistance to rust, tropical blight and maize streak, ear height, husk cover and harvest index”
Claim · model-written summary
NBN did not differ significantly from NCP80 in ear height, husk cover and harvest index.
- Material
- NBNe2
- Treatment
- Introgression of the temperate population BUGARDe0
- Outcome
- ear height, husk cover and harvest indexe4
- Direction
- not significantly differente4
- Comparator
- NCP80e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tropical Maize Population”
e0“Introgression of the temperate population BUGARD into the tropical population NCP80 significantly increased grain yield”
e2“The resulting population, NBN, appeared, moreover, significantly earlier than NCP80”
e4“not significantly different from it for resistance to rust, tropical blight and maize streak, ear height, husk cover and harvest index”
Claim · model-written summary
NBN may be improved for resistance to maize streak and grain yield by recurrent selection.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tropical Maize Population”
e5“NBN may, further, be improved for resistance to maize streak and grain yield by recurrent selection”
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