Vivipary in a breeding population

Vivipary in a breeding population

BHDC is a breeding stock developed at this Institute around 1970 by intercrossing 37 commercial double crosses of Argentine maize, followed by several generations of free pollination in isolated blocks. In the 1982 Si selection plot, one ear showing typical viviparous grains was observed at harvest. This seems to be closely linked with white endosperm (X² = 138.45***) and white seedling (not yet analyzed), like that described by Mazoti (Rev. Fac. Agr. UNLP 39:63, 1963, and previous papers). Selfed progenies showed low recombination percentages between vp_x and y_x (2 to 6%). Location tests and allelism tests are being carried out.

Francisco J. Babinec

Please Note: Notes submitted to the Maize Genetics Cooperation Newsletter may be cited only with consent of the authors.

Return to the MNL 60 On-Line Index
Return to the Maize Newsletter Index
Return to the MaizeGDB Homepage