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        <dc:title>Genetics of Fertility Restoration in A4-Based, Diverse Maturing Hybrids of Pigeonpea [Cajanus cajan (L.) Millsp.]</dc:title>
        <dc:creator>Saxena, K B</dc:creator>
        <dc:creator>Sultana, R</dc:creator>
        <dc:creator>Saxena, R K</dc:creator>
        <dc:creator>Kumar, R V</dc:creator>
        <dc:creator>Sandhu, J S</dc:creator>
        <dc:creator>Rathore, A</dc:creator>
        <dc:creator>Kavi Kishor, P B</dc:creator>
        <dc:creator>Varshney, R K</dc:creator>
        <dc:subject>Pigeonpea</dc:subject>
        <dc:description>Recently, a breeding technology for hybrid&#13;
pigeonpea [Cajanus cajan (L.) Millsp.] based&#13;
on cytoplasmic-nuclear male sterility (CMS)&#13;
and partial natural outcrossing was developed&#13;
at ICRISAT. The limited number of experimental&#13;
hybrids tested has shown the presence of a&#13;
considerable amount of hybrid vigor for seed&#13;
yield. In the present study, one extra-early- (120&#13;
d), two early- (150 d), and two late-maturing (180&#13;
d) pigeonpea hybrids were studied to generate&#13;
information on the genetics of fertility restoration&#13;
of the A4 CMS system. In the extra-earlymaturing&#13;
hybrids, pollen fertility was controlled&#13;
by a single dominant gene, whereas in the earlyand&#13;
late- maturing hybrids, male fertility was&#13;
governed by two duplicate dominant genes. It&#13;
was also observed that hybrids with two dominant&#13;
genes produced a greater pollen load and&#13;
expressed greater stability as compared with&#13;
those carrying a single dominant gene. The&#13;
information on the inheritance of fertility restoration&#13;
will help in designing strategies for breeding&#13;
elite hybrid parents, and it was concluded&#13;
that for breeding hybrids with stable fertility restoration,&#13;
the presence of two dominant genes&#13;
is essential.</dc:description>
        <dc:publisher>Crop Science Society of America</dc:publisher>
        <dc:date>2011</dc:date>
        <dc:type>Article</dc:type>
        <dc:type>PeerReviewed</dc:type>
        <dc:format>application/pdf</dc:format>
        <dc:language>en</dc:language>
        <dc:identifier>http://oar.icrisat.org/5/1/cs51_5pp-2011_%282%29.pdf</dc:identifier>
        <dc:identifier>  Saxena, K B and Sultana, R and Saxena, R K and Kumar, R V and Sandhu, J S and Rathore, A and Kavi Kishor, P B and Varshney, R K  (2011) Genetics of Fertility Restoration in A4-Based, Diverse Maturing Hybrids of Pigeonpea [Cajanus cajan (L.) Millsp.].  Crop Science, 51.  pp. 574-578.  ISSN 0011-183X     </dc:identifier>
        <dc:relation>http://dx.doi.org/10.2135/cropsci2010.07.0440</dc:relation></oai_dc:dc>
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