Studies on sunflower rust. V. Culture of Puccinia helianthi throughout its complete life cycle on detached leaves of sunflower (Helianthus annuus)

Publisher Website
Google Scholar
Abstract
Detached leaves of sunflowers on various substrates in petri plates retained some green color for 36 days at day and night temperatures of 22 and 20 °C respectively, and for 55 days at a continuous temperature of 10 °C. Water agar proved best of the substrates tried. Uredia developed in 9 to 10 days after inoculation with urediospores at 22−20 °C, and in 14 to 20 days at 10 °C. Telia developed in 14 to 20 days after inoculation at 22−20 °C, and in 22 days at 10 °C. Teliospores produced at 22−20 °C could not be induced to germinate. Those produced at 10 °C began to germinate 15 days after formation. Several complete cycles from teliospore to teliospore were produced on detached leaves. The time required per cycle averaged about 80 days.

This publication has 0 references indexed in Scilit: