Abstract: In this study,the association of self-fruitful rate and rate of pollen stained with 1%F₂-KI of A₃ cytoplasmic male sterility(CMS) in Sorghum was analyzed with three cytoplasmic male sterile lines and maintainer lines(A₃299/B₃299,A₃2457/B₃2457,A₃JW/B₃JW),one restorer(1174) and F₁ and F₂ populations of three cross classifications(A₃299×1174,A₃2457×1174,A₃ JW×1174).The results demonstrated that self-fruitful ratio of F-1 populations of three cross classifications were 10%-70%,the average being 50%,which were equivalent to the rates of pollen stained with 1%F₂-KI.Ratio of fertile plants to sterile plants of F_2 populations of three cross classifications were 1:1,which were not coincident to law of gemetophyte segregation and Mendel's law of segregation.There was the most significant liner regression between R_T and R_0.75),R_1.0),and significant liner regression between R_T and R_0.25,which regression equation was:R_T=0.188 R_0.25+0.832 R_0.75)+0.933 R_1.0),and there was difference in cross classifications.

Key words: Sorghum bicolor (L) Meoncho, CMS, Rate of pollen stained with 1%I₂_KI, Self_fruitful rate

CLC Number: 

• S514