Further studies on the control of pre-emergence rot and crown rot of peanuts

Experiments with fungicidal seed dressings on peanuts conducted during the seasons 1955 to 1959 are described. In laboratory tests there was a differential effect of fungicides on Rhizopus spp., Aspergillus niger and Penicillium spp. Organo-mercurials were very effective against Rhizopus spp. but not so effective against A. niger and Penicillium spp. Captan, thiram and chloranil were effective against A. niger and Penicillium spp. but not as consistently effective against Rhizopus spp. as the organo-mercurials. Field trials demonstrated that, under certain conditions, organo-mercurials increased the incidence of crown rot caused by A. niger. A number of fungicides controlled pre-emergence rot but the organo-mercurials and captan were the most consistent. A combination of these two fungicides gave best control over both pre-emergence rot and crown rot. Sowing rates could be profitably reduced to the recommended level, when reasonable control over crown rot can be expected

Band width selection data from Near Infra-red Spectral (NIRS) quantitative modelling of energy storage components (protein, lipid, glycogen) for single and multi-bivalve species models

Data presented in this article are related to the research article entitled “Near Infra-red spectroscopy quantitative modelling of bivalve protein, lipid and glycogen composition using single-species versus multi-species calibration and validation sets” [1]. Band width selections were determined using a data-driven approach to modelling Near Infra-red Spectra (NIRS) of protein, lipid and glycogen content in bivalves. Models were produced for single species and combined species of Saccostrea glomerata, Ostrea angasi, Crassostrea gigas, Mytilus galloprovincialis and Anadara trapezia. Band width selection was undertaken using Fourier wavelet transformation coupled with a genetic algorithm (GA) to aggregate adjacent wavelet bands to select the minimum number of IR bands that were consistently identified in the majority of individual spectra

Studies of varietal resistance to crown rot of Wheat caused by Fusarium graminearum Schw

Inoculation of wheat seed with a suspension of F. graminearum [Gibberella zeae: cf. 47, 123] affected emergence, germination, colonization by the pathogen, develop-ment of crown symptoms,“ deadhead” production, yield, grain wt, and tiller discolouration

Reaction of a collection of Triticum species and Triticales to crown rot (GibberelLa zeae)

No evidence of complete resistance or immunity to crown rot (Gibberella zeae) was detected in glasshouse studies of a wide range of Triticum species and Triticales. Similarly no such resistance was found in varieties resistant to head blight ( G. zeae).The conclusion is drawn that further attention should be given to the field resistance currently available in a number of varieties