342 Colchicine 



173. RicHHARiA, R., AM) I'KRSAi. D. Tetiaploid til (Sesaiiiiini orieutaU- L.) from col- 

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174. Ross, H. Die Vererhung der Immiuiitat gegen das \'irns X in tetraploidem 

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175. RurJORF, W. (see Ref. No. 96, Chap. 12) . 



176. RuTTLE, M., AND Nebel, B. (see Ref. No. 62, Chajx 11). 



177 Rm!I\ V Tetraploid Solaninn rybiuii Juz et Biik. jnoduced bv colchicine 

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178. Saharov, v., et al. High fertility of buckwheat tctraploids ()l)tained bv means 

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179. Saito, K. Studies on inducing polyploid flower plants and their utilization. 

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180. Salomon, E. .S«)i,^/n/;/( siidcniese Staph, tetraploide oijtenido por colchicina. 

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181. Sampavo, T., and Castro, D. Colchicine-induced tetraploidy in Luzula [nu- 

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182. Sando. \V. a coicliicine-induced tetraploid in huckwlicat. Join. Hered. 30: 

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183. ScuENK, G. Versuche zur Erzeugiuig einer polvploiden Mciitlui pipoita durch 

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184. ScHiLDr, R., AND .AkERBERGER E. Sludicr over tetraploid och diploid rag vid 

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185. Sc:Fn,ossER. L. Polyploidie in der Zuckcrriilien/iichlung. Dent. Landwirt. Gcsell. 

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186. ScHNACK. B. Variaciones producidas en Salvia sjjiriuleiis por la accion de la 

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188. Sc:hroc.k, O. (see Ref. No. 99, Chap. 12) . 



189. ScHWANiTZ, F. Untersuclumgen an polyploiden I'llan/en. VHI. Zuchter. 20: 

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190. Scott, D. Cvtological stuiHes on pohploids derived from tetraploid Fragaria 

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191. Sengbusch, R. I'olyploider Roggen. Zuchter. 12:185-89. 1940. i'ohploidc 

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192. SirvEVf.iN, I. Production of tetraploids in Lolitiin bv treating germinatuig seeds 

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193. SuiERiss, O. Polyploids in the genus Citeuiuis. join. Hered. 33:144-52. 1942. 



194. Siii.MAMURA, T. Exi^eriments of inducing tetraploid in tomatoes by means of 

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196. SnEMOTOMAi, N. Ihc artificially produced pol\i)loids in Clnxsaiilhennim 

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197. SiMONET, M. De rol)tention de varietes polvploides a grandes fieurs apres 

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198. SiNoro, v., AND Sato, D. Colchicine polyploids in Faoopyi iiin. Bol. aiul Zool. 

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199. Smith, H. Induction of polyploidy in Nicotiaiia species and species h\l)rids l)\ 

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200. Smith, L. Cytology and genetics of barley. Bot. Rev. 17:1-355. 1951. 



201. Sparrow, .\., et ah C:omparali\e cytology of sterile intra- and fertile inter- 

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