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汕优桂33是广西农科院用不育系珍汕97A和恢复系3624-33配组的秈型杂交稻新组合。1983和1984年在江苏省杂交稻新组合区域试验中表现突出,1983年平均亩产1200斤,居参试品种之首;1984年平均亩产1045斤,名列第三。经两年多点试种,各地反映“三抗”特性优良,农艺性状良好。 该组合株型比较紧凑,叶片挺直,分蘖性中等,株高105～110厘米,一般每穗总粒数可达140多粒,
Shanyou Gui 33 is a new combination of indica hybrid rice with the male sterile line Zhenshan 97A and restorer line 3624-33 in Guangxi Academy of Agricultural Sciences. In 1983 and 1984, the performance of the new hybrid rice combination in Jiangsu Province was outstanding. In 1983, the average output per mu was 1200 kg, ranking first in the test varieties. In 1984, the average yield per mu was 1045 kg, ranking the third. After more than two years of trial planting, all localities have shown that the “three anti-resistance” characteristics are excellent and their agronomic traits are good. The combination of plant type is relatively compact, straight leaves, bushy medium, plant height of 105 to 110 cm, the general number of grains per spike up to more than 140,