X-Ray Screening of Crossed Seeds in Cotton

X-ray screening of dry, delinted seeds of Gossypium hirsutum, G. raimondii and G. arboreum (selfed) and the seeds obtained from the crosses, G. arboreum X G. raimondii, G. arboreum X G. raimondii (mixed pollination) and grafted-G. arboreum X G. hirsutum was done. Out of the 305 seeds screened in the cross G. arboreum X G. raimondii, five seeds were picked up which contained partially developed embryos. One hybrid was obtained by embryo-culture method. In the cross grafted—G. arboreum X G. hirsutum, out of 32 seeds screened, 3 seeds were picked up which had partially developed embryos; the rest were empty.