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RELATIONSHIP BETWEEN DIFFERENT ALLOGAMIC ASSOCIATED TRAIT CHARACTERISTICS OF THE FIVE NEWLY DEVELOPED CYTOPLASMIC MALE STERILE (CMS) LINES IN RICE
Nematzadeh GHORBAN ALI
Ali ABUBACKER JAUHAR
Sattari MAJID
Valizadeh Ahmed
Alinejad EISHA
Nouri MOHAMMAD ZAMAN
Sažetak
Five suitable maintainer varieties were identifi ed through testcrosses with IR58025A and the transfer of wild abortive cytoplasm was carried out by seven successive backcrosses. Five new CMS lines were developed by this approach in well adapted high yielding improved varietal background such as ‘Nemat’, ‘Neda’, ‘Dasht’, ‘Amol3’ and ‘Champa’. Agronomical characterization and allogamy-associated traits of the fi ve newly developed CMS lines were studied for their interrelationship. Anther length had a signifi cant positive correlation with the duration of glume opening (0.759) and high correlation of (0.698) with the angle between lemma and palea. The results indicated that ‘Nemat’ A,
‘Neda’ A, ‘Dasht’ A are more suitable as parents for hybrid seed production due to their favorable and superior fl oral characteristics in comparison to IR58025A.
Ključne riječi
Oryza sativa; wild abortive cytoplasm; fl oral traits; CMS lines
Hrčak ID:
17341
URI
Datum izdavanja:
28.7.2006.
Posjeta: 1.408 *