004250000a22001330004500060000800000082001900008100001900027245002400046260004400070260000900114490005400123490004900177650006500226  a100  a581.104 28 OBR  aObrucheua, N V  aPhysiology of roots  aNewdelhi, Amerind Publishing Co Pvt Ltd  c1983  a  1cProgress in Science series: plant physiology  aProgress in Science series: plant physiology  aRoots- physiology, growth, reproduction of cells, metabolism