The use of heterosis in the production of agricultural and horticult ural crops /
Ashton, T.
The use of heterosis in the production of agricultural and horticult ural crops / T. Ashton. - Cambridge : Imperial bureau of plant breeding and genetics, Schoo l of agriculture, 1946 - 2 p.l. 30 p. ; 25 cm.
Plant breeding
Hybridization, Vegetable.
631.523
The use of heterosis in the production of agricultural and horticult ural crops / T. Ashton. - Cambridge : Imperial bureau of plant breeding and genetics, Schoo l of agriculture, 1946 - 2 p.l. 30 p. ; 25 cm.
Plant breeding
Hybridization, Vegetable.
631.523