Download e-book for kindle: Biological Management of Diseases of Crops: Volume 2: by P. Narayanasamy

By P. Narayanasamy

ISBN-10: 940076376X

ISBN-13: 9789400763760

ISBN-10: 9400763778

ISBN-13: 9789400763777

Biological administration of ailments of plants is prompted by way of the character of interactions among the pathogens and different organisms and the crops. because of improvement of resistance in pathogens to fungicides and bactericides, selection of compatibility of biotic biocontrol brokers with chemical compounds is vital for choosing lines of biocontrol brokers (BCAs) displaying resistance to chemical substances to successfully limit use of the chemical compounds. Microbial plant pathogens and the antagonists found in the soil and at the plant surfaces are inspired via a number of cultural practices. it's attainable to lessen illness occurrence and depth through crop sanitation and utilizing applicable rotational plants. program of actual recommendations regarding using warmth, solarization and irradiation has strength to minimize the pathogen inhabitants or weaken the potential for pathogens found in the seed, planting fabrics and soil.

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Additional info for Biological Management of Diseases of Crops: Volume 2: Integration of Biological Control Strategies with Crop Disease Management Systems

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Many cultural disease control practices may function through their effect on mineral availability. Transformation from insoluble Mn+3 or Mn+4 oxides to plant-available soluble Mn+2 is highly dependent on environmental factors so that many factors predisposing plants to disease may act through their effect on Mn availability. A firm seed bed recommended for reducing wheat take-all disease increased Mn uptake by wheat. Plant growth-promoting rhizobacteria (PGPRs) applied to seed or seedlings reduced diseases by modifying the microbial environment and increasing the availability of specific micronutrients such as iron (Fe) and Mn (Huber and Haneklaus 2007).

Dahliae and the disease incidence in artichoke. No added benefit was evident, when solarization was combined with cauliflower residue amendment. In addition to toxic volatile compounds, other mechanisms could be involved in disease suppression, because the effects of incorporation of cauliflower residue were not enhanced by solarization. The effect of cauliflower residues on V. dahliae population (microsclerotia) in soil was inconsistent, possibly due to varying pretreatment of inoculum levels.

A suspension of Xcv at 108 CFU/ml was sprayed on the plants at 60 days after planting. The number of bacterial pathogen (colonies) population isolated from leaves of plants in different treatments and disease incidence were determined. 5 × 108 CFU in the untreated control. The disease incidence was also significantly reduced by both EM and biofertilizer treatments (Castro et al. 1997). 3 Tillage Tillage is an important operation in the crop management system, carried out for the preservation of soil status to provide optimum conditions for plant growth and to maintain long-term productivity of the soils.

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Biological Management of Diseases of Crops: Volume 2: Integration of Biological Control Strategies with Crop Disease Management Systems by P. Narayanasamy

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