. Bulletin of the Department of Agriculture. Agriculture; Agriculture. SUDAN GRASS AND RELATED PLANTS. shown in figure 4. Attempts to cross these two species artificially in the greenhouse have been successful in only a very small percentage of the trials, most of the attempts resulting in failure even under fa- <=C~J^~^^r^\\ f,^ ^POLAND; ^ "4:,. ^â $= 'u KRAINE. AFRICA © JOHNSO/V GRASS 0 GRASS SORGHL/MS Fig. 3.âThe natural distribution of Johnson grass and the grass sorghums. vorable conditions. There is apparently an antagonism or unfavor- able reaction between the
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. SUDAN GRASS AND RELATED PLANTS. shown in figure 4. Attempts to cross these two species artificially in the greenhouse have been successful in only a very small percentage of the trials, most of the attempts resulting in failure even under fa- <=C~J^~^^r^\\ f,^ ^POLAND; ^ "4:,. ^â $= 'u KRAINE. AFRICA © JOHNSO/V GRASS 0 GRASS SORGHL/MS Fig. 3.âThe natural distribution of Johnson grass and the grass sorghums. vorable conditions. There is apparently an antagonism or unfavor- able reaction between the reproductive organs of these two plants, which is rather decided evidence of their specific Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.
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