Johansen EL,Smith BW. (1956) Arachis hypogaeaXA.diogoi,embryo and seed failure. Amer Jour Bot,43:250-258 Singh AK , Moss , JP. (1984 ) Utilization of wild relatives in the genetic improvement of Arachis hypogaea L. 5. Genome analysis in section Arachis and its implications in gene transfer. Theor Appl Genet,68,355-364 Smith BW. (1956)Arachis hypogaea. Embryogeny and effect of peg elongation upon embryo and endosperm growth. Amer Jour Bot , 43,233-240 Stalker HT. (1985) Cytotaxonomy of Arachis. In :Proceedings of an International Workshop on Cytogenetics of Arachis,ICRISAT Center,India,31 Oct-2 Nov,1983,International Crops Research Institute for the Semi-Arid Tropics,India. pp,65-79 Stalker HT,Moss JP. (1987) Speciation,cytogenetics,and utilization of Arachis species. Adv Agron ,41,1-40 Wong Yuejin,Zhou Rong. (1986) Studies on cross compatibilities betweer different types of A. hypogaea L. and wild species. Oil Crops of China ,3:8-15 (in Chinese) Zhang Xinyou. (1991) Utilization of wild Erectoides species in the genus Arachis for the improvement of the cultivated groundnut. I. Resistance to groundnut rust and leaf spots. Acta Agriculturae Boreali-Sinica,6(4):30-35 (in Chinese)