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Breeding Hard‐Seeded Vetch Using Interspecific Hybridization 1
Author(s) -
Donnelly E. D.
Publication year - 1971
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1971.0011183x001100050036x
Subject(s) - biology , vicia sativa , seeding , recombination , interspecific hybridization , botany , horticulture , agronomy , gene , genetics , hybrid
Summary Vicia sativa L. (2n = 12) and V. cordata Wulf. (2n = 10) were crossed to incorporate the gene or genes for hard seed from the latter parent into an agronomically desirable V. sativa line. The F 1 was highly infertile. The F 2 and succeeding generations segregated for parental and recombination types, fertility, and permeability of seedcoat. In each generation selection for hard seed resulted in an increase in frequency of plants that produced 70 to 100% hard seed. Hardseededness increased from 9% in the F 2 to almost 90% in the F 5 and F 6 . Fertility and vigor were restored in the V. sativa type by F 4 . Recombination types continued to segregate for percentage hard seed, plant type, and seed production through F 6 . V. cordata types were not selected beyond the F 3 because of the small size of this parent. Many V. sativa type F 6 lines were genetically stable for a high percentage hard seed and high seed yield.