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A Possible Source of Cytoplasmic Male Sterility in Intermediate Wheat‐Grass, Agropyron Intermedium (Host) Beauv. 1
Author(s) -
SchulzSchaeffer Jurgen
Publication year - 1970
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/cropsci1970.0011183x001000020028x
Subject(s) - biology , sterility , agropyron , backcrossing , hybrid , botany , host (biology) , cytoplasmic male sterility , poaceae , genetics , gene
Amphidiploid Triticum durum Desf. × Agropyron intermedium (Host) Beauv. and T. durum × A. trichophorum (Link) Richt. hybrids were backcrossed twice to A. intermedium and A. trichophorum . A pronounced increase in male sterility was observed in the series from the amphidiploid (AD) to the first and second substitution backcross generations (SB 1 and SB 2 ). Male sterility estimates averaged 53.4% in the AD, 83.6% in the SB 1 and 96.8% in the SB 2 . Approximately 69% of all SB 2 plants were 99 to 100% male sterile.