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Flowering events in relation to smut susceptibility in pearl millet

OAR@ICRISAT

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Relation http://oar.icrisat.org/2176/
 
Title Flowering events in relation to smut susceptibility in pearl millet
 
Creator Thakur, R P
 
Subject Millets
 
Description In field experiments at ICRISAT, selected lines of pearl millet (Pennisetum glaucum) resistant and susceptible to smut (Tolyposporium penicillariae) were evaluated for the timing of flowering events. In smut-resistant lines, the time from the boot-leaf stage (inoculation) to stigma emergence varied in the range 46–120 h, from boot to anther emergence 105–190 h, and from stigma emergence to anther emergence (protogyny period) 59–131 h; in smut-susceptible lines, the corresponding periods were 62–140 h, 146–200 h and 44–120 h, respectively. There were no significant correlations between timing of events and smut severity. Three cytoplasmically male-sterile lines showed longer protogyny periods and higher smut severity than their corresponding maintainer lines. Four lines having short protogyny periods (22–52 h) and resistance to ergot (Claviceps fusiformis) also showed high resistance to smut. Resistance to smut in most ergot-susceptible lines was independent of the timing of flow ering events, but in ergot-resistant lines it could be closely related to flowering events.
 
Publisher Blackwell Publishing
 
Date 1989
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/2176/1/Plant_Pathology_%281989%29_38%2C_557-563.pdf
Thakur, R P (1989) Flowering events in relation to smut susceptibility in pearl millet. Plant Pathology, 38 (4). pp. 557-563.