Role of Aeciospores in Outbreaks of Pea ( Pisum sativum ) Rust ( Uromyces fabae )
作者： Chanda Kushwaha , Ramesh Chand , Chandra Prakash Srivastava
DOI: 10.1007/S10658-006-9017-4
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摘要: Aeciospores in Uromyces fabae were found to be repeating spores and play an important role pea rust outbreaks the North Eastern Plain Zone (NEPZ) of India. Experiments conducted on from 2001 2004 revealed dominance aeciospores at all growth stages this region. Urediospore production was erratic only observed a few samples stems tendrils (5–10%). Inoculation plants either by or urediospores resulted aeciospores. Production temperature range 10–25 °C, with maximum 25 ± 2 °C. Among different pea, pod formation stage highly susceptible produced number (744) aecidia/leaf 20–25 °C. Significant effects also noticed for pustule number. mainly coincided senescence plants. Maximum germination (2%) 25 °C, whereas urediospore (3.5%) 15 °C. Temperatures > 15 °C decreased germination. A relative humidity (RH) 100% favourable aeciospore while 98% RH favoured Typical histo-pathological behaviour observed.
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