田东县近年引进杧果良种象牙22、印度1号、泰国杧、龙杧等试种,连年获得高产稳产。县林科所1972年定植上述品种,75年以来每年每株都结果(见表一)。合恒公社小龙大队76年定植以上品种,77年开花,78年开始留果,平均每株产29斤,80年51斤。81年调查,小龙大队的龙杧最大一个重2.5斤,县林科所最大的一个重4.5斤。这些新品种,在田东右江盆地试种生长发育良好, Tiandong County in recent years the introduction of fruit varieties Ivory 22, India on the 1st, Thailand 杧, 杧 杧 and other species, year after year to obtain high and stable yield. County forestry institute in 1972 colonization of the above varieties, 75 years of annual results of each plant (see Table 1). He Heng commune brigade brigade 76 years planted above varieties, flowering in 1977, 78 years to leave fruit, the average yield of 29 pounds, 80 pounds 51 pounds. 81 years of investigation, the largest dragons dragons brigade a weight of 2.5 pounds, the largest forest county 4.5 kg. These new varieties, in Tiandong Youjiang Basin test good growth and development,