38 BREEDING DROUGHT-RESISTANT FORAGE PLANTS. %$A 



Page. 



Excelsior, Minn., cultivation of alfalfa 14 



Experiments, at Akron Dry-Land Station 10, 12, 19, 23, 27-29 



Bellefourche Experiment Farm '. 10-33, 36 



Highmore substation 9-10, 12-15, 18-22, 24, 29, 31, 33, 36 



objects sought 7-9 



Flowers of alfalfa 15, 16 



sorgo 21 



Foliage, factor in forage yield 14, 15, 22, 29, 32 



Forage, yield and quality 9, 12-15, 17-18, 22-24, 28-29, 33-34 



Grain, yield and quality 9, 12-13, 14, 15, 17-19, 28-29, 33-34 



Grama, blue, chemical analysis 30 



Grass, brome, chemical analysis 30 



experiments, breeding 9-10, 29, 33 



variety, South Dakota No. 26, character and test 29 



buffalo, chemical analysis 30 



native, chief dependence of early agriculture 8 



wheat, slender, chemical analysis 30 



experiments, breeding 31-32, 33, 36 



western, chemical analysis 30 



tests for drought resistance 9-10, 30-31, 33 



Great Plains, definition of area covered 7 



Green-manure crops. See Legumes. 



Gumbo, soil resultant from Pierre shale 11, 30 



Hansen, N. E., importations of seeds 14, 25 



Hardiness, factor in plant breeding 9, 11-14, 18-19, 33 



Hay. See Forage. 



Highmore substation. See Experiments. 



History of investigations 9-10 



Introduction to bulletin 7 



Irrigation, outline of project at Bellefourche 10-11 



production of alfalfa seed 9 



Kafirs, power of resisting drought , 8 



Kearney, T. H., drought-resistant plant-breeding work 10 



Kepner, F. E. See Knight, H. G. 



Knight, H. G., and Kepner, F. E., on analyses of forage plants 30 



Lathyrus sativus. See Peas, grass. 

 Leaves of alfalfa. See Foliage. 



Legumes, cultivation for green manure 32 



McLane, J. W. See Briggs, L. J. 



Maturity, factor of earliness 9, 19, 21, 22, 24, 27, 31, 33 



Merke, Turkestan, source of alfalfa 14 



Millet, tests for drought resistance 7, 9-10, 24-29 



varieties, common 24-28 ' 



foxtail 10, 24-29, 36 



German 24-27 



Hungarian 24-27 



Kursk 24-29, 36 



Siberian 24-28 



S. P. I. No. 20694 25 



S. P. I. No. 22420 24 



Milo, power of resisting drought 8, 9 



Minnesota, origin of alfalfa variety, Minnesota No. 3 14 



196 



