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经1984—1986年定点调查及花粉形态观测。发现柠檬花粉正常树全年各次花花药均呈鲜黄色,果实产量较高;而花粉败育树早春花粉败育,其花药呈灰白或淡奶油色,产量较低。认为败育树可能系柠檬不耐低温的劣变品系,选用花粉正常母树采穗育苗,淘汰败育树,可提高柠檬产量。
After 1984-1986 sentinel survey and observation of pollen morphology. Found that the normal lemon tree pollen throughout the year were bright yellow flower anthers, higher fruit yield; and pollen abortion tree early spring pollen abortion, the anthers were gray or light cream, the yield is low. It is considered that the abortion tree may be a degraded line in which the lemon is not resistant to low temperature. Selecting the normal pollinating mother tree to pick the seedling and eliminating the abortion tree can increase the yield of the lemon.