Abstract
To select indirectly for low grain moisture in maize ( Zea mays L.) hybrids, divergent lines were selected from two S 2 populations on the basis of three morphological traits (date of husk senescence, husk length, and kernel number) that previously had been shown to be associated with faster drying rates in hybrids. Divergent lines were also selected on the basis of silking date. Nine hybrids for each selection classification were formed by crossing three selected S 2 lines from one population with three inbreds, selected on the basis of the same criterion, from the second population. Field evaluation of the hybrids indicated that selection for early husk senescence in the inbreds decreased grain moisture by 27 g kg −1 ', hastened physiological maturity, and increased lodging in the associated hybrids. Selection for early husk senescence did not affect yield. Selection for the other three traits had no significant effect on grain moisture at harvest. Our results suggest that selection of early husk senescence in inbreds would result in hybrids with lower grain moisture and that evaluation of husk senescence may be useful in monitoring maturity in maize.
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Claims 6
Claim · model-written summary
Early husk senescence selection decreased hybrid grain moisture by 27 g kg −1.
- Treatment
- selection for early husk senescencee0
- Outcome
- grain moisturee0
- Direction
- decreasede0
- Value
- 27 g kg −1e0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“selection for early husk senescence in the inbreds decreased grain moisture by 27 g kg −1”
e1“maize ( Zea mays L.) hybrids”
Claim · model-written summary
Early husk senescence selection hastened hybrid physiological maturity.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“selection for early husk senescence in the inbreds decreased grain moisture by 27 g kg −1 ', hastened physiological maturity, and increased lodging in the associated hybrids.”
e1“maize ( Zea mays L.) hybrids”
Claim · model-written summary
Early husk senescence selection increased lodging.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hastened physiological maturity, and increased lodging in the associated hybrids.”
e1“selection for early husk senescence in the inbreds decreased grain moisture by 27 g kg −1”
t0“Maize”
Claim · model-written summary
Early husk senescence selection did not affect yield.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selection for early husk senescence did not affect yield.”
e1“maize ( Zea mays L.) hybrids”
Claim · model-written summary
Selection for the other three traits did not significantly affect harvest grain moisture.
- Treatment
- Selection for the other three traitse0
- Outcome
- grain moisture at harveste0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selection for the other three traits had no significant effect on grain moisture at harvest.”
e1“maize ( Zea mays L.) hybrids”
Claim · model-written summary
The authors suggest evaluating husk senescence to monitor maize maturity.
- Outcome
- evaluation of husk senescence may be useful in monitoring maturitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluation of husk senescence may be useful in monitoring maturity in maize”
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