na INLIS000000000000429 20230915111412 0010-0921000429 230915 g 0 eng 0-249-44155-1 en 631.53.01 631.53.01 THO a Thomson, J.R. An introduction to seed technology / J.R. Thomson London : Leonard Hill, 1979 PLANT PROPAGATION SEED TREATMENT SEED CERTIFICATION 631.53.01 THO a vii, 252 p. : ill. ; 23 cm 1873/D/2016