EurekaMag.com logo
+ Site Statistics
References:
53,214,146
Abstracts:
29,074,682
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Effect of flooding and temperature on incidence and severity of safflower seedling rust and viability of puccinia carthami telio spores






Phytopathology 67(6): 787-790

Effect of flooding and temperature on incidence and severity of safflower seedling rust and viability of puccinia carthami telio spores

Soil infested with P. carthami was flooded under different time-temperature regimes in controlled-environment chambers. The incidence and severity of rust on safflower [Carthamus tinctorius] seedlings decreased in soils following flooding under increasing temperature and time. Rust was completely controlled in soil flooded for 4 and 7 days at temperatures maintained at a constant 36 or 39.degree. C. Flooding at day-night temperature regimes of 36-26.degree. C and 39-29.degree. C for 4 and 7 days controlled rust in all but the 36-26.degree. C, 4-day regime. Incidence and severity of rust were markedly reduced after soil was flooded for 7 days at 30 and 33.degree. C and progressively decreased with prolonged flooding at 12, 18 and 24.degree. C. Disease incidence in the field was significantly lower with flooding than without. Viability of teliospores was reduced when they were submersed in water or dispersed on agar at 18-39.degree. C for 2-14 days. Spores were not viable after a minimum treatment of 4 days in water or on agar at 36 and 39.degree. C. Loss of viability was slower as exposure temperature decreased. When spore suspensions in water at 30 and 33.degree. C for 4 days were aerated, a small increase in germination occurred in subsequent assays.

(PDF 0-2 workdays service: $29.90)

Accession: 005239407



Related references

Stimulation of germination of puccinia carthami telio spores by poly acetylenes from safflower. Phytopathology 67(4): 472-474, 1977

Exclusionary seedling rust resistance of safflower d abstract puccinia carthami carthamus tinctorius d. Phytopathology 59(1): 17, 1969

Fine structure of Puccinia carthami and the ultrastructural nature of exclusionary seedling-rust resistance of Safflower. Phytopathology. 60: 8, 1157-1163, 1970

Significance of seedling rust resistance of safflower d and its relationship to foliage rust resistance carthamus tinctorius puccinia carthami. Phytopathology 57(7): 772-776, 1967

Incidence of rust (Puccinia carthami) on safflower (Carthamus tinctorius) varieties at Jabalpur. Punjabrao Krishi Vidyapeeth Research Journal 3(1): 81-82, 1974

Quarantine salvaging of safflower seed infected with safflower rust (Puccinia carthami). FAO Plant Protection Bulletin 38(3): 141-143, 1990

Safflower rust Puccinia carthami Cda=P. kentrophylli Syd. Iran. Jnl PL Path, 4: 4, 3-5, 1968

The rust of safflower Puccinia carthami Corda. Current Sci 16(9): 292, 1947

Seed transmission of safflower rust (Puccinia calcitrapae var. centaureae) and metabolic changes induced by seedling phase of safflower rust. Journal of Mycology and Plant Pathology 28(2): 209-210, 1998

Safflower diseases in Italy: rust (Puccinia carthami Cda.). Informatore Fitopatologico 31(3): 11-16, 1981