Effect of harvesting corn after frost in Alberta (Canada) on whole-plant yield, nutritive value, and kernel properties

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creativework.keywords - en
corn
corn silage
short growing season
frost
nutrient composition
kernel
yield
hybrid
creativework.keywords - fr
maïs
ensilage de maïs
courte saison de croissance
gel
valeur nutritive
grain
rendement
hybride
dc.contributor.author
Guyader, Jessie
Baron, Vern S.
Beauchemin, Karen A.
dc.date.accepted
2021-02-26
dc.date.accessioned
2023-06-27T19:49:12Z
dc.date.available
2023-06-27T19:49:12Z
dc.date.issued
2021-03-01
dc.date.submitted
2021-02-18
dc.description - en
This study compared yield, nutritive value, and kernel properties of whole plant corn (WPC) harvested before and after a light frost in 3 locations in Alberta We concluded that delaying harvest until after frost in short growing season areas such as Lacombe can be beneficial when whole plant dry matter content is low before frost In warmer locations (southern Alberta) harvesting after frost may result in the material being very dry and subject to spoilage during ensilaging
dc.description.abstract - en
This study compares yield, nutritive value, and kernel properties of whole plant corn (WPC) harvested before and after a light frost in short growing season areas. Six corn hybrids grown in two years at three locations within Alberta (Canada) were harvested before or after the first frost. Samples of WPC were analyzed for dry matter (DM) content, neutral detergent fiber (NDF) concentration, starch concentration, and 48-h in vitro DM and NDF digestibility (DMD and NDFD, respectively). Cob samples were analyzed for DM, and kernels were analyzed for DM, hardness, particle size distribution, density, and stage of maturity. Delaying harvest to after frost increased DM content of WPC at all locations but exceeded the recommended range (32–38%) in the two warmest locations. Whatever the year and hybrid, DM yield was either not affected or decreased after frost. Postfrost harvest increased starch concentration and modified kernel characteristics only if these were less than expected before frost. Fiber concentration was not affected by harvesting time. Frost had either no impact or increased DMD or NDFD of WPC. We conclude that delaying harvest until after frost in short growing season areas can be beneficial when whole-plant DM content is low before frost.
dc.description.fosrctranslation - fr
Dans la présente étude, nous avons comparé le rendement, la valeur nutritive et les propriétés des grains du plant de maïs entier récoltée avant et après un léger gel dans 3 emplacements de l’Alberta Nous avons conclu qu’il peut être avantageux de retarder la récolte après le gel dans les régions à courte saison de croissance, comme à Lacombe, lorsque la teneur en matière sèche du plant entier est faible avant le gel Dans les régions plus chaudes (sud de l’Alberta), la récolte après le gel peut rendre la matière très sèche et sujette à la détérioration durant l’ensilage
dc.identifier.citation
Guyader, J., Baron, V. S., & Beauchemin, K. A. (2021). Effect of harvesting corn after frost in Alberta (Canada) on whole-plant yield, nutritive value and kernel properties. Agronomy, 11(3), 459. https://doi.org/10.3390/agronomy11030459
dc.identifier.doi
https://doi.org/10.3390/agronomy11030459
dc.identifier.issn
2073-4395
dc.identifier.uri
https://open-science.canada.ca/handle/123456789/893
dc.language.iso
en
dc.publisher
MDPI
dc.rights - en
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.rights - fr
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.rights.openaccesslevel - en
Gold
dc.rights.openaccesslevel - fr
Or
dc.rights.uri - en
https://creativecommons.org/licenses/by/4.0/
dc.rights.uri - fr
https://creativecommons.org/licenses/by/4.0/deed.fr
dc.subject - en
Agriculture
dc.subject - fr
Agriculture
dc.subject.en - en
Agriculture
dc.subject.fr - fr
Agriculture
dc.title - en
Effect of harvesting corn after frost in Alberta (Canada) on whole-plant yield, nutritive value, and kernel properties
dc.title.alternative - fr
Effet de la récolte du maïs après le gel en Alberta (Canada) sur le rendement, la valeur nutritive et les propriétés des grains du plant entier
dc.type - en
Article
dc.type - fr
Article
local.acceptedmanuscript.articlenum
459
local.article.journalissue
3
local.article.journaltitle
Agronomy
local.article.journalvolume
11
local.peerreview - en
Yes
local.peerreview - fr
Oui
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