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Further Studies on the Restoration of Fertility in Triticum durum × T. timopheevi Hybrids
Author(s) -
Pandey H. N.,
Rao M. V.,
Singh S. V.
Publication year - 1990
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1111/j.1439-0523.1990.tb00431.x
Subject(s) - hybrid , backcrossing , biology , pollination , cultivar , fertility , hybrid seed , botany , agronomy , horticulture , pollen , gene , genetics , population , demography , sociology
Twenty one F 1 hybrids involving three Triticum durum cultivars and eleven forms of T. timopheevi were backcrossed to their respective durum parents. Backcross fertility (BC 1 grain set) of these sterile hybrids improved with the rise in temperature at the time of pollination. A mean temperature of less than 20 °C results in poor seed set while higher mean temperatures around 24 °C result in increased seed set. It is suggested that a large number of backcross seeds can be produced by pollinating these hybrids late in the season, i.e., after 20th of March in northern India.