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Genetic Male Sterility as a Means of Developing Maintainer Lines and Restorer Parents of Hybrid Wheat 1
Author(s) -
Trupp C. R.
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/cropsci1971.0011183x001100030048x
Subject(s) - software maintainer , biology , sterility , hybrid , hybrid seed , cytoplasmic male sterility , pollination , population , emasculation , genetics , microbiology and biotechnology , botany , pollen , demography , sociology
A proposed method now under investigation is presented for the development of improved maintainer lines of cytoplasmic male‐sterile parents and restorer parents of hybrid wheat ( Triticum aestivum L. em. Thell.). A simply inherited recessive gene for male sterility is utilized to force cross pollination among otherwise self‐fertile plants in restoring and non‐restoring populations. Only open‐pollinated seed from genetic male‐sterile plants is harvested to maintain a population perpetuated entirely by cross‐pollination during the development phase. Any genetic factors enhancing the cross‐pollinating potential of the populations should have a natural selective advantage and thus accumulate. Lines developed from self‐fertile segregates in the non‐restoring population can be used as maintainer lines for cytoplasmic male‐sterile parents of hybrids or directly as conventional varieties.