526 



Journal of Agricultural Research 



Vol. XXII 



Page 

 Trilintm— Continued, 

 spelt a, behavior of spelt form in c rosses with 



T. sativum 33S~364 



turgidum, behavior of spelt form in crosses. 335 

 vulgare — 



behavior of spelt form in crosses 335-36^ 



vigor of Ki of crosses. S4-63 



Syu. Tritkum aestivum. 

 TroUius europeiis, resistance to teliospores of ^ 



Puccinia trilicina 1 5S~i72 



Tuber-rot, blackleg 81-9 



Tulip tree. See Liriodendron tulipifera. 



Turnip. See Brassica rapa. " ^ 



TURNIP MOSAIC 123-12 



Tussilago Farfara, susceptibility to Puccinia 



triticina 152-1 7a 



Urocystis cepulae, effect of soil temperature 235-26* 

 Urlica dioica — 

 failure to become infected from basidiospores 



of Puccinia ritbigo-vera 152-172 



susceptibility to Puccinia triticina 152-172 



Ustilago — 



avenae, effect of soil temperature 242 



levis, effect of soil temperature 242 



Valeriana dioica, susceptibility to Puccinia 



triticina 152-172 



Velvet bean. See Stizolobium deeringianum. 

 Vitis— 



vinifera, succinic acid 224 



sp., host of Cyllene pictus 198-203 



Page 

 Wade, J. S., and Boving, Adam G.: BIOL- 

 OI.OGY OF EMBAPHION MURI- 



CATUM 323-334 



Walker, J. C! , and Jones, L. R. : RELATION 

 OF SOIL TEMPERATURE AND OTH- 

 ER FACTORS TO ONION SMUT IN- 

 FECTION 235-262 



Water, hot, effect on hydrocyanic acid in Su- 

 dan grass 131-133 



Weather, effect on hydrocyanic acid in Sudan 



grass 136 



Weimer, J. L., and Harter, L. L.: 

 A COMPARISON OF THE PECTINASE 

 PRODUCED BY DIFFERENT SPE- 

 CIES OF RHIZOPUS 371-377 



SUSCEPTIBILITY OF THE DIFFER- 

 ENT VARIETIES OF SWEET POTA- 

 TOES TO DECAY BY RHIZOPUS 

 NIGRICANS AND RHIZOPUS TRIT- 



ICI s"-sts 



Western white pine. See Pinus monticola. 



Wheat crosses, vigor of Fi seedlings 53-63 



Wheat, orange leafrust 151-172 



Whipworm. See Trichuris trichiura. 



White oak. See Quercus alba. 



White pine, western. See Pinus monticola. 



Worms, parasitic, homotoxins 379-43» 



Xylotrcchus colonus, host selection 195-220 



Yellow pine. See Pinus ponderosa. 

 Yellow poplar. See Liriodendron tulipifera. 



c 



