IPM
11752 items matching your criteria.
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Vallonia Rotary Tooth Cultivator
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Cultivation of conifer seedbeds from the standpoint of weed control after seedlings emerge can be and is now largely eliminated by weed spray-- chiefly mineral ...Charles C. Mony
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The Value of Forests
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Paul H. Brewbaker
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The Value of Insect Control in Seed Orchards: Some Economic and Biological Considerations
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There are more than 6000 acres of clonal pine seed orchards in the southern United States, with additional acreage being established each year. The projected ...Gary L. DeBarr
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Value of Production Orchards Based on Two Cycles of Breeding and Testing
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Claire G. Williams and J. E. de Steiguer
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The value of quality seed in forest tree nursery operations and reforestation programs
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Seed quality, seed source, high quality planting stock; these are items at the top-of-the-list when nurserymen, geneticists, and silviculturists confer. We ...F. J. Deneke and Thomas D. Landis
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The Value of Seedling Quality Testing
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Richard W. Tinus
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Value of Windbreaks
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Windbreaks are an important part of in the Great Plains. They are planted for a variety of reasons and provide both economical and esthetic benefits. This is a ...Sheridan I. Dronen
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Vapam Shows Promise as a Forest Nursery Herbicide
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The use of chemicals to control weeds in forest tree nurseries has become standard practice. Mineral spirits (Varsol, Stanisol, Sohio Weed Killer, etc.) have ...Charles B. Briscoe and Freddie R. Strickland
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Vapor-Gard Affects Survival and Growth of Outplanted Pine Seedlings
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Results of studies designed to test effects of Vapro-gard applications to foliage of slash, loblolly, and longleaf pine seedlings on survival and height growth ...S. J. Rowan
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Vapour is the Principal Source of Water Imbibed by Seeds in Unsaturated Soils
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The assumption that seeds imbibe most of the water required for germination as liquid through seed-to-soil contact has been a dominant theme in germination ...S. Wuest
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Variability Associated with Suppression of Gray Mold (Botrytis cinerea) on Geranium by Foliar Applications of Nonaerated and Aerated Compost Teas
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The use of compost teas in agriculture and urban landscapes is increasing, but there is conflicting information on which methods are suitable for obtaining ...S. Scheuerell and W. Mahaffee
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Variability in Virulence of Heterobasidion annosum Isolates from Ponderosa and Jeffrey Pine in Area of High and Low Photochemical Air Pollution
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USDA Forest Service
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Variability of Chromosome Structure and Behavior in Southern Pine Hybrid
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L. C. Saylor
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Variability Of Cronartium fusiform Affects Resistance Breeding Strategies
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Albert G. Kais, Charles H. Walkinshaw, Glenn A. Snow and Ronald J. Dinus
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Variability of Flower and Cone Production in Norway Spruce
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Donald E. Carlson and Everett J. Eliason
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Variability of Genetic Response to Selection under GBLUP Evaluation
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Novel breeding methods including genomic selection are based on genome-wide predicted breeding values (GEBV). Recent development coincides well with the new ...Jan Stejskal and Milan Lstibůrek
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Variability of Yellow Birch in the Western Great Lakes Region
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Bruce P. Dancik
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Variable Chlorophyll a Fluorescence as a Potential Indicator of Black Spruce Seedling Freezing Tolerance Under Nursery Conditions
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Garry Devisscher, Ladislav Malek and Norman P. A. Hurter
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Variable Chlorophyll-a Fluorescence and its Potential Use in Tree Seedling Production and Forest Regeneration
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An integrating fluorometer for detection of variable chlorophyll-a fluorescence has proven useful in determining the physiological status of conifer seedlings. ...G. Lister, P. Toivonen, R. Brooke, W. Binder and W. Vidaver
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Variable Seed Dormancy in Rocky Mountain Juniper
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Rocky Mountain juniper is difficult to grow in the nursery due to variable seed dormancy that spreads germination over time. In two experiments, six ...W. J. Rietveld
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Variable Susceptibility to Diorcyctria amatella (Hulst) (Lepidoptera: Phycitidae) Among Pines in Clonal Seed Orchards
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Concern over seed losses due to cone insect damage in pine seed orchards is increasing annually. The coneworm, Dioryctria amatella (Hulst) (Lepidoptera: ...C. F. Sartor and William W. Neel
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Variance Component And Genetic Gain Estimates From 6-year-old Diallel Tests Of Loblolly Pine
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Steve McKeand and Floyd Bridgwater
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Variation Among Natural And Domesticated Populations of Pinus caribaea Var.
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Mark Dieters and Zheng Yongqi
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Variation Among Open-Pollinated Families of Pinus caribaea va Hondurensis from Guanaja Island, Honduras, Grown in Brazil
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V. P. G. Moura and William S. Dvorak
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Variation Among Progenies of Pinus Strobus Clones From Several Northeastern Seed Orchards
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John B. Genys and Clyde M. Hunt
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Variation Among Progeny of Mass-Selected Balsam Fir.
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David S. Canavera, Donald H. DeHayes and Katherine K. Carter
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Variation among Siberian elm in their susceptibility to defoliation by the spring cankerworn
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Richard A. Cunningham and Mary Ellen Dix
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Variation Among White Ash Families in Flushing and Spring Frost Susceptibility
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Knud E. Clausen
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Variation Among Yellow Birch Populations in Photosynthetic Response to Varying Light Intensity and Temperature
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John B. Shane and Donald H. DeHayes
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Variation Among Yellow Birch Populations in Photosynthetic Response to Varying Light Intensity and Temperature
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John B. Shane and Donald H. DeHayes
