Three fungi newly intercepted from importing plants were identified in 2004. They were Ascochyta chrysanthemi on Lactuca sativa from China, A. spinaciicola on Spinacia oleracea from Denmark, and Leptosphaerulina australis on Brassica oleracea var. capitata from China. The characters of these fungi were described and illustrated.

The widely accepted models describing the emergence of domesticated grain crops from their wild type ancestors are mostly based upon selection (conscious or unconscious) of major features related either to seed dispersal (nonbrittle ear, indehiscent pod) or free germination (nondormant seeds, soft seed coat). Based on the breeding systems (self-pollination) and dominance relations between the a...

Abstract — A new hybrid opto-electronic WDM architecture to extend electronic ADC performance is analyzed and simulated. Mode-locked optical pulses are amplitude modulated by a RF signal and optically demultiplexed into a number of parallel channels. The signal in each channel is converted to an electrical signal and then passed through a simple low-pass filter. The effect of low-pass filter re...

Ascochyta blight is a major biotic constraint of faba bean (Vicia L.) production and productivity worldwide caused by fabae. No studies have been performed in Algeria to identify A. fabae isolates or assess their pathogenicity, therefore information on local insufficient. Herein, 14 were obtained from samples identified based morphological traits phylogenetic analysis internal transcribed space...