Browsing by Subject "cherry"
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Item Accessions from University of Minnesota Fruit Breeding Program 1923-1950: Accessions N231 to N50174(1950) Horticultural Research CenterItem Accessions from University of Minnesota Fruit Breeding Program 1951-1972: Accessions N511 to N72111(1972) Horticultural Research CenterItem Damage measurements and reproductive outcomes following phenologic delay and floral freezing of a population of Prunus pumila plants(2024-06-06) Lake Diver, Danielle A; Savage, Jessica A; jsavage@d.umn.edu; Savage, Jessica; Savage research teamThere are advantages flowering early in the spring, which include greater pollinator fidelity and longer fruit maturation time. But plant phenology has advanced in recent years making many plants vulnerable to freezing damage from late frosts. To determine the costs and benefits of flowering early in the spring, we exposed Prunus pumila plants to two freezing treatments and a delayed flowering treatment in subsequent years. Data were collected on ovary swelling, fruit production and pollinator visitation on hand-and open-pollinated plants in all treatments. We also measured tissue damage after freeze events. Our results suggest that flowering time and temperature affect reproductive success, with fewer fruits produced after hard freezes. The same was not true for light freezes, which had minimal impact on reproduction. Freezing damage to plants after a hard freeze did affect the number of Dipteran pollinators but not the overall pollinator visitation rate. Despite the clear impact of freezing temperatures on plant reproduction, there were also advantages for flowering early as reproductive output decreased during with delayed flowering. Our findings suggest that Prunus pumila will retain the ability to attract pollinators and produce viable seeds if exposed to false spring conditions that involve a light freeze, but hard freezes may reduce yield by an order of magnitude. Although the advantages to flowering early may outweigh the risk of freezing damage under current conditions, it is possible that flower viability may be constrained under continued climate warming.Item Duplicate Pollination Records from University of Minnesota Fruit Breeding Program from 1923-1929(1929) Horticultural Research CenterItem Duplicate Pollination Records from University of Minnesota Fruit Breeding Program from 1930-1935(1935) Horticultural Research CenterItem Duplicate Pollination Records from University of Minnesota Fruit Breeding Program from 1936-1941(1941) Horticultural Research CenterItem Inventory of fruit trees including seedlings, selections, cultivars and accessions that existed at time the record was created (circa 1973)(1973) Horticultural Research CenterItem Maps of field plantings of fruit crops at the University of Minnesota Horticultural Research Center Farm 1 and Farm 2: 1939-1982(1982) Horticultural Research CenterItem Original Pollination Records from University of Minnesota Fruit Breeding Program from 1908-1922(1922) Horticultural Research CenterItem Original Pollination Records from University of Minnesota Fruit Breeding Program from 1923-1929(1929) Horticultural Research CenterItem Original Pollination Records from University of Minnesota Fruit Breeding Program from 1930-1934(1934) Horticultural Research CenterItem Original Pollination Records from University of Minnesota Fruit Breeding Program from 1935-1941(1941) Horticultural Research CenterItem Original Pollination Records from University of Minnesota Fruit Breeding Program from 1942-1949(1949) Horticultural Research CenterItem Pollination record in University of Minnesota fruit breeding program from 1965 through 1985(1985) Horticultural Research CenterItem Pollination Records from University of Minnesota Fruit Breeding Program from 1908-1922(1922) Horticultural Research CenterItem Pollination Records from University of Minnesota Fruit Breeding Program from 1923-1927(1927) Horticultural Research CenterItem Pollination Records from University of Minnesota Fruit Breeding Program from 1928-1931(1931) Horticultural Research CenterItem Pollination Records from University of Minnesota Fruit Breeding Program from 1932-1935(1935) Horticultural Research CenterItem Pollination Records from University of Minnesota Fruit Breeding Program from 1936-1941(1941) Horticultural Research Center