Cottonwood Flowering as Related to Cold Requirement of Flower Buds
Abstract:The cold requirement of Populus deltoides Bartr. in central Mississippi was investigated by forcing flower-bud-bearing branches collected in November, December, January, and February. Rapidity of flowering response increased from November to February. With the exception of material forced in January, leaving branches on trees for 30 days overcame cold requirements as effectively as storage at 4° C for that period. Tree-to-tree variation in flowering response was highly significant, as were all interactions involving individual tree effects. Male trees flowered earlier than female.
Document Type: Journal Article
Affiliations: Southern Forest Expt. Sta., Forest Service, U.S. Dept. of Agriculture
Publication date: September 1, 1964
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- Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
Forest Science is published bimonthly in February, April, June, August, October, and December.
2015 Impact Factor: 1.702
Ranking: 16 of 66 in forestry
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