一、材料来源与选育经过76—152是通过有性杂交选育的,已于1988年4月初经水稻专业组鉴定通过。1976年稻作所以多元杂交法配制组合(如图),以后采用系谱法选育。1978年夏在沈阳杂交;1976年冬在海南岛种植一代;1977年夏在沈阳种植子二代,秋后选优良植株12株;1978年夏在沈阳种植子三代,共12个株系,该年在第9系中选得两个优良植株;1979年夏在沈阳种植子四代,共两个株系,秋季每系各选出5个优良 First, the material sources and breeding After 76-152 is selected through sexual cross breeding, in early April 1988 by the rice professional group identified. In 1976, so hybrid rice hybrid rice combination (Figure), after the use of pedigree selection breeding. The summer of 1978, hybridization in Shenyang; the winter of 1976 to grow a generation in Hainan Island; the summer of 1977 the second generation of planting seeds in Shenyang, autumn selected 12 excellent plants; the summer of 1978 the Shenyang three generations of plants, a total of 12 lines, the In the 9th year, two excellent plants were selected. In the summer of 1979, four sub-plants were planted in Shenyang,