Isolation of pumpkin varieties by tall-stemmed plants.


Kul'cic'ka, Z.O.

Nauk. Praci zapor. derz. sil'skogosp. dosl. Sta. 1971(1): 38-40

1962


Sunflower screens 10, 25 and 50 m. wide reduced intervarietal cross pollination in varietal fields.