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为降低澳洲坚果采收成本,提高采收效率,以澳洲坚果主栽品种“HAES800”和“HAES294”为材料,在果实成熟期喷施浓度为1.5g/L、2.0g/L和2.5g/L的乙烯利溶液,对喷施乙烯利溶液后的落果情况、落叶情况和果实品质进行了研究,并对该方法的促落果效果和使用成本进行了评估。结果表明,品种“HAES800”喷施上述浓度乙烯利溶液4周后的落果率分别达到94.10%、94.08%和93.67%,而同一时期对照的落果率仅有24.64%;品种“HAES294”喷施上述浓度乙烯利溶液6周后的落果率则分别达到90.89%、93.17%和91.80%,而同一时期对照的落果率仅有53.27%;相比而言品种“HAES800”对乙烯利溶液更敏感;建议在生产中品种“HAES800”和“HAES294”分别采用1.5g/L和2.0g/L的乙烯利溶液进行促落果采收;尽管喷施乙烯利会引起部分落叶,但不会对树体生长和果实品质产生影响。应用本方法可使澳洲坚果采收成本降低25.07%,具有巨大的推广应用前景。
In order to reduce the cost of harvesting Macadamia nuts and improve the harvesting efficiency, macadamia macroscopically cultivated varieties “HAES800” and “HAES294” were used as material to spray the macadamia nuts at 1.5g / L, 2.0g / L And 2.5g / L ethephon solution. The deciduous situation, deciduous condition and fruit quality after spraying ethephon were studied, and the effect of cocaine removal and the cost of using this method were evaluated. The results showed that the fruit drop rate of 94%, 94.08% and 93.67%, respectively, after sprayed with the above concentration ethephon solution for “HAES800” for 4 weeks was only 24.64% compared with that for the same period. The variety “HAES294 ”After spraying the above concentration of ethephon solution for 6 weeks, the fruit drop rates reached 90.89%, 93.17% and 91.80% respectively, compared with 53.27% of the control during the same period; in contrast,“ HAES800 ” The solution is more sensitive; it is recommended to use the ethephon solution of 1.5g / L and 2.0g / L respectively to promote fruit drop recovery in production varieties “HAES800” and “HAES294” Fallen leaves do not affect tree growth and fruit quality. The method can reduce the cost of macadamia tree by 25.07%, which has great prospect of popularization and application.