Resistance to Gray Leaf Spot in Capsicum Peppers

Pathotypes of Bacterial Spot Pathogen Infecting Capsicum Peppers in Korea

Sixty-seven isolates of bacterial spot pathogen (Xanthomonas spp.) collected from six provinces of Korea were tested for the identification of their pathotypes and determination of their distribution throughout Korea in an effort to genetically manage the disease. Near isogenic lines of Early Calwonder (Capsicum annuum) pepper plants carrying Bs1 , Bs2 and Bs3 , and PI235047 (C. pubescens) were...

Inheritance of Gray Leaf Spot Resistance in Corn

Bayesian inference to study genetic control of resistance to gray leaf spot in maize.

Gray leaf spot (GLS) is a major maize disease in Brazil that significantly affects grain production. We used Bayesian inference to investigate the nature and magnitude of gene effects related to GLS resistance by evaluation of contrasting lines and segregating populations. The experiment was arranged in a randomized block design with three replications and the mean values were analyzed us...

Heat Stability of Resistance to Meloidogyne incognita in Scotch Bonnet Peppers ( Capsicum chinense Jacq.).

Stability of resistance to Meloidogyne incognita (Kofoid &White) Chitwood was determined in pepper (Capsicum chinense Jacq. and C. annuum L.) at 24, 28, and 32 degrees C. Reactions of the C. annuum cultivars Charleston Belle and Keystone Resistant Giant and the C. chinense cultigens PA-426 and PA-350 to M. incognita were compared. Charleston Belle is homozygous for the N gene that confers resis...

Virus Disease Resistance in Peppers

In certain localities within the state par ticular viruses may cause more damage than others. In central Florida tobacco etch, to bacco mosaic, and potato Y viruses were most frequently encountered by Anderson and Corbett (1). Simons (15, 17) found the cu cumber mosaic and potato Y viruses most detrimental in south Florida. Occurrence of the latter disease has been correlated with potato produc...