00468naa a2200157 a 450000100080000000500110000800800410001910000140006024500970007426000090017170000170018070000140019770000140021170000160022577300690024118369992010-01-10       1981    bl ---       0--  u    #d1 aIWAMA, K.  aRelations between root system and tuber yield in the hybrid population of the potato plants.  c19811 aNAKASEKO, K.1 aISODA, A.1 aGOTOH, K.1 aNISHIBE, Y.  tJapanese Journal of Crop Sciencegv. 50, n. 2, p. 233-238, 1981.