Download or read book Investigation on Root Rot of Beans Caused by Fusarium Solani F Phaseoli written by Don Morgan Huber and published by . This book was released on 1963 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Root Rots of Beans in Latin America and Africa written by George Samuel Abawi and published by CIAT. This book was released on 1990 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Major root rots of beans in Latin America and Africa; Minor root rots of beans in Latin America and Africa; Unreported root rots of beans in Latin America and Africa; Diagnosis of root rots in beans; Selected methodologies and techniques for research on root rots of beans; Management strategies for control of root rots of beans.

Download or read book Influence of Nitrogen on the Root Disease of Bean Caused by Fusarium Solani F Phaseoli written by Kurt Ernest Weinke and published by . This book was released on 1962 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transmission of Fusarium and Pythium Root Rot Resistance in Beans written by Patrick O. Ongom and published by LAP Lambert Academic Publishing. This book was released on 2012 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fusarium root rot, caused by the fungus Fusarium solani f. sp Phaseoli is an important soil-borne disease affecting common bean (Phaseolus vulgaris L.) production in Uganda and many other countries. This pathogen exists in complexe with with Pythium ultimum var. ultimum, and resistance to these pathogens were thought to be linked. A study was initiated to elucidate the inheritance of F.solani resistance and to determine if this resistance is associated with P.ultimum resistance gene. This book uniquely enumirates the surprising outcome the study. Mostly few additive genes with epistatic modofications were found. Fusarium and Pythium resistance genes lacked co-inheritance.The book also displays important genetic principles that guide breeding decisions, and is quite handy for those in academia as well as practical plant geneticsts and breeders.

Download or read book Studies on the Inheritance of Resistance to Fusarium Root Rot in Beans written by Alonso Martinez Bravo and published by . This book was released on 1967 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Identifcation Characterization and Management of Fusarium Root Rot Pathogens of Dry Beans in Michigan written by Kirsten A. Oudman and published by . This book was released on 2018 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: Michigan is the second-largest producer of dry beans in the United States. Among the yield-limiting diseases dry bean production faces is Fusarium root rot, which can lead to decreased nutrient and water uptake, plant stress, and even plant death. Cultural control can manage root rot, however tolerant cultivars or seed treatments may be more effective, especially if common casual agents are known. To understand which species of clade 2 of the Fusarium solani species complex (FSSC) were causing Fusarium root rot in Michigan, a survey was conducted revealing 50% of samples collected to be F. cuneirostrum, 37% F. brasiliense, and 13% as F. phaseoli. Isolates collected were moderately to highly pathogenic on two cultivars of dry beans. Isolates representative of both MAT idiomorphs were detected. An inoculated field trial was conducted to determine pathogenicity of F. brasiliense and F. virguliforme on two dry bean cultivars in the field. F. brasiliense decreased stand and dry plant mass while both pathogens increased root rot. Using two qPCR assays revealed the colonization potential of F. brasiliense in taproots to be greater than that of F. virguliforme. Two seed treatments were also examined as means of F. brasiliense management on dry beans. A seed treatment containing fluopyram reduced the quantity of F. brasiliense in the taproots of both cultivars though neither seed treatment influenced yield. Greater understanding of the Fusarium root rot pathogens present in Michigan and the efficacy of seed treatments can improve dry bean production.

Download or read book Root Rot of the Bean in California Caused by Fusarium Martii Phaseoli Burk and F Aduncisporum N Sp written by and published by . This book was released on 1926 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Dry Root rot of the Bean written by Walter H.. Burkholden and published by . This book was released on 1919 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Penetration and Host parasite Relationships of Fusarium Solani F Phaseoli Rhizoctonia Solani and Thielaviopsis Basicola in the Bean Plant written by Theodosios Christou and published by . This book was released on 1961 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Breeding for Resistance to Fusarium Root Rot in Bean Phaseolus Vularis L written by Kristin Ann Schneider and published by . This book was released on 1999 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Preliminary Study on the Development of a Soil Suppressive to the Fusarium Root Rot of Bean written by Nancy E. Grudens and published by . This book was released on 1982 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Etiology and Control of Dry Bean Root Rot in Minnesota written by Elva Consuelo Estévez de Jensen and published by . This book was released on 2000 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Role of Rhizobacteria in Control of Bean Root Rot Caused by Fusarium Solani F Sp Phaseoli written by I.S. de MELO and published by . This book was released on 1998 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most important root pathogen of bean in Brazil is Fusarium solani f. sp. phaseoli which can attack roots of healthy beans growing under fairly normal conditions. To obtain rhizosphere-competent bacteria which could be used as biocontrol agents, bacteria were isolated from rhizosphere and rhizophane of bean healthy plants by standard techniques. Nine isolates including Bacillus subtilis and Pseudomonas spp. were selected for greenhouse and field tests. All these isolates inhibited in vitro Fusarium solani f. sp. phaseoli and Rhizoctonia solani. An isolate of B. subtilis inhibited the mycelial growth of several plant pathogenic fungi including Phytophthora citrophthora, Verticillium dahliae, Sclerotinia sclerotiorum. This strain produced an antibiotic substance in an ethyl acetate extract that totally inhibited germination of conidia and the mycelial growth of Fusarium solani. Seed bacterization of bean with a cell suspension of B. subtilis, reduced significantly infections as compared with the control, promoted the plant growth and, increased the nodulation by Rhizobium. In field conditions, with naturally infested soil with Fusarium solani, the bacterium reduced the incidence of the disease and increased the grain yield.

Download or read book The Study of Root Rot Effects on Bean Yield Using Microplots written by David Michael Wolock and published by . This book was released on 1983 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Inheritance of Resistance to Fusarium Root Rot in Phaseolus Vulgaris L and Phaseolus Coccineus L written by Hassan Ahmed Azzam and published by . This book was released on 1957 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progenies of two bean crosses were studied for inheritance of resistance to dry root rot caused by Fusarium solani f. phaseoli. O.S.C. 22 (P. vulgaris) was used in both crosses as the susceptible parent. A Mexican line (P. vulgaris) and a line 2014 of the runner bean (P. coccineus) were used as the tolerant (partially resistant) parents. Artificial inoculation was accomplished by dipping seeds in a thick emulsion of macerated agar media. A disease rating system of 0-5 was used, with 0 indicating no infection and 5 very severe infection. The disease average of all plants within a given seed lot was taken as the best indication for tolerance or susceptibility. The parents and their progenies were tested in both greenhouse and field. Differences between the reciprocal crosses of 22 x Mexican were not observed. The reciprocal cross of 22 x 2014 was not maintained due to the difficulty of securing seeds when 2014 was used as the female parent. In both crosses the F1 showed that tolerance was recessive. The observed ratios in the backcross generation of the cross 22 x Mexican fit the theoretical ratio of 1 tolerant to 7 susceptible indicating the action of three major genes. The F2 generation, in both crosses, showed a wider spread of disease ratings than either parent and occupied most, if not all, disease classes. The F2 generation of the cross 22 x 2014 indicated the possible action of two major recessive genes conditioning tolerance. The F2 of the cross 22 x Mexican exhibited no close fit to definite genetic ratios. Analysis of F3 data for the interspecific cross 22 x 2014 indicated that two or three major recessive genes conditioned the tolerance of P. coccineus. Difficulties of obtaining definite genetic ratios in this cross may be due to modifying genes, as well as to lack of exact control of environment in the various tests. The F3 progeny of 22 x Mexican indicated the possible action of three major recessive genes, or perhaps fewer major genes and several modifiers conditioning resistance. It is recognized that the results reported in this study represent an approximation for the inheritance of resistance to Fusarium root rot. There was no significant relation between root vigor of P. coccineus and resistance to root rot. Pigmentation in the cross 22 x Mexican indicated a simple inheritance of one dominant gene for pigmented over green. Seed color inheritance in the same cross indicated the interaction of two major genes and gave in the F2 a ratio of 9 black: 3 brown: 4 white. A very high association was observed between seed color and plant color. No clear relation between pigmentation and resistance to root rot was found. The recessive nature of resistance, the approximate estimation of genes involved, and the apparent freedom from serious linkage problems form a basis upon which to develop a breeding program designed to incorporate tolerance to root rot with horticulturally desirable characters in present day varieties of beans.

Download or read book Microbial Associations in the Fusarium Root Rot of Beans written by Otis Cleo Maloy and published by . This book was released on 1958 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Correlations Between Horticultural Characteristics and Fusarium Root rot Resistance in Phaseolus Vulgaris L written by Theodora Wang and published by . This book was released on 1970 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: To study the association between Fusarium root-rot resistance (Fusarium solani f. sp. phaseoli) and economically inportant characteristics of beans, 2259 lines each consisting of 30 plants were used. The lines were randomly selected for root-rot reaction, but were selected for differences in vigor and differences in plant and seed pigments, growth habit, and toughness. The lines were established from crosses of resistant and susceptible parents after which self-fertilization for 4-6 generations was practiced. Measurements and classifications with respect to pigmentation, vigor and growth habits were made on plants grown in the field and the greenhouse. Toughness of pods was evaluated by means of a shear press or by subjective estimates. Replicated tests of these lines with artificially produced inocula of the Fusarium organism were made in the greenhouse and in the field, thus under different environmental conditions. Uninoculated plants of each of the lines were also grown in order to evaluate the lines simultaneously for the horticultural characters. The relationships between resistance and plant characteristics were determined by correlation analysis among the traits. Though correlation coefficients were small or non-significant in many cases, some associations were indicated: 1, Indeterminate growth was associated with low root-rot infection. 2. Late flowering was related to high susceptibility of beans grown in the field. 3. Late maturity was associated with high score for root-rot of field grown beans 4. High shear press readings were associated with low root-rot infection of field-grown beans, 5. Plants with dark colored seeds were less susceptible to root-rot infection when the beans were grown in the field.