The Use of Heat-Sums to Predict Harvest Dates Following Potassium Chlorate (KCIO3) Application in Longan
The ability to initiate and manipulate flowering with KCIO3 allows flowering of longan,to be triggered outside of the normal flowering season (July-September) in Australia. Fruit maturity following normal flowering will occur approximately six-eight months (180-220 days) from flowering,depending on variety. Out of season flowering will result in differing times to maturity due to different temperature regimes during the maturity period.Knowing how long fruit will take to mature from different KCIO3 application dates is potentially a valuable tool for growers to use as it would allow them to time their applications with market opportunities,e.g. Chinese New Year,periods of low volumes or periods of high prices. A simple heat-sum calculation was shown to reliably quantify fruit maturity periods,2902 and 3432 growing degree days for Kohala and Biew Kiew respectively. Growers can use heat-sum as a predictive tool to allow for efficient planning of harvesting, packaging and freight requirements.
longan heat-sum growing degree days KCIO3
Y.Diczbalis J.Drinnan
Department of Primary Industries and Fisheries Queensland Australia
国际会议
福州
英文
345-349
2008-08-25（万方平台首次上网日期，不代表论文的发表时间）