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我场柑桔自1954、1955年遭受冻害后,从1956年起至今长期从事高砧抗寒栽培的研究,取得不少成效。1979年6月上旬,我场在1株冻后从根部萌生的2年生枳砧上,进行了分层(三层)多芽嫁接脐橙的试验,1980年第一、二层即现蕾,疏除大部花蕾后,留花64朵,结果11个。1980年秋由常德地区科委下达高砧柑桔抗寒、密植、早产、丰产中间试验任务,在一分场三队定植枳砧6763株,行株距2×1.2米,1981年4月上旬至5月中旬完成多芽分层嫁接。现将试验情况简述如下:
After citrus was frost damaged in 1954 and 1955, citrus has long been engaged in the study of cold-resistant cultivars of high-anvil since 1956 and has achieved a great deal of success. In early June 1979, we conducted a multi-grafted (navel) orange grafting on a 2-year-old twig rooted from the roots after freezing in the field. In 1980, the first and second floors were budding and sparse In addition to most buds, leaving flowers 64, the results of 11. The autumn of 1980 by the Changde Science and Technology Commission issued anvil ancestors cold hardiness, close planting, premature birth, high yield intermediate test mission, in a field of three teams afforestation Zhizu 6,763 lines spacing 2 × 1.2 meters, early April 1981 to 5 Mid-month to complete multi-bud layered grafting. Now the test situation is as follows: