HortScience · 1985 · 30 citations · 3 references
Life SciencesPlant BiologyPlant SciencesAgricultural EntomologyInsect EcologyPlant Reproductive BiologyFruit SetPollen BiologyPollen ProductionPollination BiologyPollination ManagementPollinator BehaviorFruit Set EfficiencyFruit Set EvaluationHand PollinationPollen Tube Growth Rate RegulationStigma ReceptivityStigma Receptivity AssessmentStigma Receptivity DynamicsStigma Receptivity Timing
Abstract During 1982–84, pollen tube growth rate in styles of ‘Napoleon’ sweet cherry ( Prunus avium L.) was related to genotype and temperature. At temperatures of 7.3° and 9.9°C, ‘Corum’ pollen tube growth was the slowest, ‘Bada’ the fastest. Maximum stigma receptivity of ‘Napoleon’ occurred for 5 days after anthesis at 9.4°. Ovules were functional for at least 13 days after anthesis. Hand pollination of ‘Napoleon’ resulted in a high fruit set irrespective of pollinizer source or weather conditions during the 3 years. Open pollination developed adequate fruit set for a commercial yield in all 3 years, although it was variable, 24% to 50%. Data in 1984 suggest that insect pollinators were active below 13°.
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