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Browsing Theses,Dissertations and Student Research Papers (Horticulture) by Author

Browsing Theses,Dissertations and Student Research Papers (Horticulture) by Author "Mack, Harry"

Now showing items 1-3 of 3

The effect of bud self pollination, open flower self pollination, and cross pollination on the field characteristics of broccoli progenies

Yin, Yun-Fu (1977-08-01)

To determine the effect of bud pollination, compared to pollination of open flowers and crossing, on field characteristics of broccoli progenies, an experiment was conducted in 1974 and 1975 at Corvallis, Oregon. Sing ...
Interaction of crop plant population with weed competition in corn (Zea mays L.), bush snap beans (Phaseolus vulgaris L.), and onion (Allium cepa L.) at differing stages of development

Williams, Clarence Frank (1971-05-06)

Yield reductions due to competition of weeds with crop plants can be extremely important. Early weed competition can be as important in reducing crop yield as weed competition for the entire season. The objectives of ...
The response of beans to fluorodifen as affected by light and other factors

Pollak, Tomas (1973-11-30)

Studies with fluorodifen were conducted to gain more information about its field performance and the influence of light quantity, quality and timing of exposure on its phytotoxic properties. Uptake and trans location ...