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对籼稻品种特籼占13经返回式卫星搭载空间诱变的21个高代(SP10)突变品系的主要农艺经济性状以及稻瘟病抗性表现进行考察.结果表明:参试的各突变品系大部分主要农艺经济性状均表现明显的变异,既有正向也有负向变异;不同突变品系对稻瘟病的抗性表现差异很大,同一突变品系对不同致病菌株的抗性表现差异也较大,表明空间诱变对稻瘟病抗性变异作用明显但较为复杂.从参试突变品系中可选出在株高、熟期、产量、外观品质和抗性等性状同时得到明显改良的新品种和新种质.
The main agronomic economic traits and rice blast resistance of 21 high generation (SP10) mutant lines with indica rice variety indica accounted for 13 via space shuttle satellites were studied.The results showed that most of the mutant strains The main agronomic economic traits showed obvious variation, both positive and negative mutation; different mutant strains of rice blast resistance performance vary greatly, the same mutant strains of different pathogenic strains of resistance performance differences are also larger, The results showed that space mutagenesis had obvious but complicated effects on the resistance variation of rice blast.The new varieties with new characters such as plant height, maturity, yield, appearance quality and resistance were obviously improved at the same time Germplasm