000 00541 a2200157 4500
245 1 _aField and greenhouse studies regarding the sources and nature of resistance of sorghums, sorghum vulgare pers., to the corn leaf aphid, rhopalosiphum maidis (Fitch)
260 _aManhattan
_c1956
650 _aGreenhouse
650 _aSorghums
650 _aCorn Leaf Aphid
100 1 _aHowitt, A.J., Painter, R.H.
_d
300 _a38 p.
440 _aNo. 82
_vKansas Agricultural Experiment Station Technical Bu
942 _2udc
_cB
901 _a52021
999 _c55935
_d55935