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本调查于1960年8月至1962年3月在阳新县金海区及广济县田镇、梅川区进行。这些地区都是两县的柑桔主要产区,栽培品种,以阳新迟桔(Citrus reticulata var.ery-throsa)及阳新早桔(Citrus reticulata vas.tangerina)栽培较多;甜橙、花红、柚子、香、佛手、南丰桔等品种栽培少。阳新迟桔的成年果树具有中等程度的抗病能力;幼苗则是易感病,其感病程度接近甜橙。早桔的抗病性一般较迟桔稍强。此地的结果树树龄以20—30年左右的最多,40年以上的较少;未结果的定植树约占四分之一至二分之一。平均年雨量为1,423.5—1,623.24毫
The survey was conducted from August 1960 to March 1962 in Jinhai District of Yangxin County and Tianzhen and Meichuan District of Guangji County. These areas are the main citrus growing areas and cultivars cultivated in both counties with Citrus reticulata var.ery-throsa and Citrus reticulata vas. Tangerina; sweet oranges, red flowers, grapefruit , Incense, bergamot, Nanfeng orange varieties cultivated less. Yang new adult orange fruit trees have moderate resistance to disease; seedlings are susceptible, the extent of their susceptibility to sweet orange. Early resistance to orange is generally slightly later than orange. The results here are about 20 to 30 years old and less than 40 years old; about one-fourth to one-half of the unaccounted colonized trees. The average annual rainfall is 1,423.5-1,623.24 milliliters