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以大豆合丰50为试验材料,利用航天搭载与60Co-γ辐射的复合处理,对M22个株系主要农艺性状进行分析。结果表明:群体株高分别为(90.47±6.56)cm和(95.26±6.13)cm、主茎节数分别为(18.2±1.34)个和(16.77±1.38)个,与对照差异达到极显著水平,底荚高、单株荚数、单株粒数与对照有差异,但没有达到显著水平;M22个株系株高、主茎节数、底荚高、单株荚数、单株粒数变异率分别为9.3%、6.9%、2.3%、4.6%、9.3%和9.4%、7.5%、3.8%、5.6%、3.8%,其中正向变异占总变异的比例分别为:49.4%、33.1%、12.5%、51.1%、49.6%和19.8%、24.8%、50.0%、32.2%、47.6%,通过群体变异和后代变异率以及正向变异所占的比例可以看出,航天搭载与航天搭载与60Co-γ辐射的复合处理可以作为大豆新品种选育所利用。
Using soybean Hefeng 50 as the experimental material, the main agronomic traits of M22 lines were analyzed by the composite treatment of space shuttle and 60Co-γ radiation. The results showed that the plant height was (90.47 ± 6.56) cm and (95.26 ± 6.13) cm, respectively, and the number of main stems was (18.2 ± 1.34) and (16.77 ± 1.38), respectively, with significant differences from the control The number of pod per plant, the number of pods per plant and the number of per plant were different from those of the control, but did not reach significant level. The variation of plant height, number of main stems, The rates of positive variation were accounted for 49.4% and 33.1% respectively, with the rates of 9.3%, 6.9%, 2.3%, 4.6%, 9.3% and 9.4%, 7.5%, 3.8%, 5.6% and 3.8% , 12.5%, 51.1%, 49.6% and 19.8%, 24.8%, 50.0%, 32.2% and 47.6% respectively. As can be seen from the proportion of population variation and the rate of variation of the offspring and the positive variation, The composite treatment of 60Co-γ radiation can be used as breeding of new soybean varieties.