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Cross Breeding Male‐Sterile Wheat ( Triticum Aestivum L.) and Rye ( Secale Spp.) 1
Author(s) -
Porter K. B.,
Tuleen N. A.
Publication year - 1972
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/cropsci1972.0011183x001200050050x
Subject(s) - triticale , secale , biology , common wheat , agronomy , pollen , hybrid seed , inflorescence , poaceae , hybrid , botany , chromosome , gene , genetics
Seed set on male‐sterile wheat ( Triticum aestivum L.), T. timopheevi cytoplasm, pollinated by rye (Secale) in field crossing blocks was less than 2%. Seed set on male sterile wheat/rye F 1 's was negligible when backcrossed to rye, 0.37% when backcrossed to wheat, and 0.96% when crossed to 6X Triticale. The partial fertility of two 56‐ chromosome amphiploids arising spontaneously on malesterile wheat/rye F 1 's pollinated by rye indicate that some ryes possess fertility restoration factors that interact with those of male‐sterile wheat to restore pollen fertility. F 1 progenies of cytoplasmic male‐sterile wheat‐rye F 1 's crossed to 6X Triticale were frequently partially fertile. Malesterile wheat may be a useful breeding tool for making interspecific crosses involving rye.