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Ergot Susceptibility in Relation to Cytoplasmic Male Sterility in Pearl Millet

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Relation http://oar.icrisat.org/4911/
http://dx.doi.org/10.1094/PD-73-0676
 
Title Ergot Susceptibility in Relation to Cytoplasmic Male Sterility in Pearl Millet
 
Creator Thakur, R P
Rao, V P
King, S B
 
Subject Millets
 
Description The association of cytoplasmic male sterility with susceptibility to ergot (caused by Claviceps fusiformis) in pearl millet was studied in seven cytoplasmic male-sterile (CMS) lines (A lines), their corresponding maintainer lines (B lines), 10 pollinator lines (R lines), and 48 F1 hybrids (A × R and B × R). Four of the seven A lines were significantly more susceptible (90–97% severity) than their corresponding B lines (54–77% severity). All A × R hybrids except four were significantly more susceptible than their corresponding B × R hybrids, indicating the positive association of sterile cytoplasm with ergot susceptibility. The cytoplasmic effect on ergot susceptibility was significant in 20 of the 24 A/ B × R hybrids. The higher ergot susceptibility of A lines and A × R hybrids, compared with B lines and B × R hybrids, could be attributed to the cytoplasmic, nuclear, and cytoplasmic × nuclear factors affecting flowering events that influence ergot susceptibility. Implications of these findings in breeding CMS-based F1 hybrids are discussed
 
Publisher American Phytopathological Society
 
Date 1989
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/4911/1/Ergot%20susceptibility%20in%20PM.%201989.%20RPT%2CVPR%2CSBK.%20%20Pl%20Dis%2073%20676-678.pdf
Thakur, R P and Rao, V P and King, S B (1989) Ergot Susceptibility in Relation to Cytoplasmic Male Sterility in Pearl Millet. Plant Disease, 73 (8). pp. 676-678. ISSN 0191-2917