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Paper Information

Journal:   IRANIAN JOURNAL OF PLANT PATHOLOGY   December 2001 , Volume 37 , Number 3-4; Page(s) 303 To 318.
 
Paper: 

USE OF WHEAT STRAW AS A SUBSTRATE FOR THE ESTABLISHMENT OF PAECILOMYCES LILACINUS IN SOUR LEMON RHIZOSPHERE

 
 
Author(s):  PAKNYAT M., BANIHASHEMI Z.A.D.
 
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Abstract: 

During 1996-2000 an investigation was carried out on the biology and establishment of Paecilomyces lilacinus in sour lemon rhizosphere. Among more than ten substrates used, chopped wheat straw and its enriched form with potato extract and dextrose (PD)were chosen. The survival of the fungus in three media [(sand+enriched wheat straw), (sand+wheat straw) and (sand)] was studied at 15,20,25 and 30°C. The results showed that except for 30°C, P. lilacinus survived for 480 and 280 days in media containing wheat straws and sand respectively. The longest survival time was at 20oC on "sand+wheat straw" medium (P<%1).
The saprophytic competitive ability of P. lilacinus using wheat straw inoculum at different ratios mixed with soil from citrus orachard indicated that the fungus at high population can compete with soil microflora. Population changes of P. lilacinus in sour lemon rhizosphere was studied using enriched wheat straw in greenhouse and orchard. It was shown that the fungus was established in sour lemon rhizosphere for over 180 days in greenhouse and 300 days in orchard.

 
Keyword(s): PAECILOMYCES LILACINUS, WHEAT STRAW, CITURS AURANTIFOLIA, RHIZOSPHERE
 
References: 
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