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Subjects plant breeding Remove constraint plant breeding: plant breeding Subjects selection methods Remove constraint selection methods: selection methods Subjects United States Remove constraint United States: United States

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1. Improvement of corn by seed selection.

Author:: Hartley, C.P.
Subject:: corn , Zea mays , planting seed , selection methods , plant breeding , United States
Physical description:: p. 539-552.
Series:: Yearbook of agriculture
Part Of:: Yearbook of the United States Department of Agriculture. 1902 (pub. 1903)

2. Improvement of plants by selection.

Author:: Webber, H.J.
Subject:: plant breeding , selection methods , agronomic traits , United States
Physical description:: p. 355-376.
Series:: Yearbook of agriculture
Part Of:: Yearbook of the United States Department of Agriculture. 1898 (pub. 1899)