Disease resistance is a very desirable quality when it comes to the breeding of various plant species. Pests and diseases can drastically affect plants and crops that are used for consumption and commercial purposes, and it is important for people in the industry to develop ways for protection against disease. In fact, plant disease resistance is essential to the reliable production of food, and it has also shown significant benefits such as reductions in the agricultural use of land, water, fuel, and even agrochemicals.
In the past, there have been numerous examples of the impacts of devastating plant disease, such as in the case of the Irish Potato Famine, in which Ireland was plunged disease, and emigration into a period of mass starvation, human disease, and eventual emigration because of potato blight, a disease that can destroy entire crops.
Plant breeders are always on the lookout for ways to improve the selection and development of disease-resistant plant lines. Plant varieties with genetically determined disease resistance are often the first choice for the control of disease. Breeding for disease resistance in plants has been undertaken ever since plant species were first domesticated, but this practice requires continual effort. Pathogen populations are typically under natural selection for increasing their virulence, and this is why plant breeders should always find ways to reinforce the resistance of plants. New pathogens might also be introduced to an area and new cultivation methods can be favorable for the occurrence of disease in plants over time.
Crossbreeding a desirable yet disease-susceptible plant variety to another (more robust) variety is a common practice, as well as the selection of disease-resistant individuals from a certain area.
This category contains scientific information on disease resistance, a very desirable quality when it comes to the breeding of various plant species.
“Jotova, I.; Jotsov, S.; Girginov, G. P.; Ivanov, I. E.; Nikolova, M., 1987: Erythrocyte antigenic determinants and resistance of broiler type birds to virus of marek s disease. Zhivotnov””dni Nauki 24(2): 77-82 The study was conducted with 421 birds of the breeds Cornish, lines 66 and 77 and Plymouth Rock, lines 88 and 9 Experimental [...]
Hagedorn D.J., 1981: Epiphytic populations of pseudomonas syringae on susceptible and resistant bean phaseolus vulgaris lines. Phytopathology: 547-550 Large differences were found in populations of virulent P. syringae (cause of bacterial brown spot of bean) on resistant and susceptible bean lines in the field. About 106 cells/g fresh wt were isolated from leaves of the [...]
Saito, H.; Hori, M., 1985: Epidemiology and control of wheat and barley scab caused by gibberella zeae i. a technique for obtaining a large amount of macroconidia of the pathogen. Bulletin of the Chugoku National Agricultural Experiment Station Series E (Environment Division) (22): 1-20 A technique was developed for obtaining a large amount of macroconidia [...]
Harrigan E.K.S., 1984: Environmental factors influencing safflower screening for resistance to phytophthora cryptogea. Plant Disease: 767-769 Sand texture influenced infection of safflower seedlings by zoospores of P. cryptogea. In fine sand, an inoculum of 107 zoospores was required to uniformly infect trays of safflower seedlings, but when coarser sand was used, 2.times. 106 zoospores were [...]
Delafield S.J., 1985: Embryogenesis and haploid plant production from anther culture of cabbage brassica oleracea var capitata. Canadian Journal Of Plant Science: 1033-1038 Thirteen out of nineteen single plant cabbage (Brassica oleracea) selections from a clubroot-resistant breeding population with known variation in glucosinolate composition yielded embryos from cultured anthers. The highest embryo yield was obtained [...]
Campbell W.F., 1984: Electrophoretic patterns of storage proteins in phaseolus vulgaris prone to cotyledonal cracking. Journal Of Seed Technology: 150-161 Cotyledonal- or transverse-cracking (Tvc) in certain cultivars of snapbean, Phaseolus vulgaris L., seeds, clearly evident during germination, places affected seedlings at a competitive disadvantage. Tvc is an inherited trait and occurs across cell walls of [...]
Johnson A.W., 1980: Efficacy of resistance to root knot nematode meloidogyne incognita in snap beans phaseolus vulgaris. Journal Of The American Society For Horticultural Science: 923-926 Four snap bean (P. vulgaris L.) breeding lines, resistant Pi 165426 and 2 susceptible commercial cultivars were tested for resistance to root galling and root-knot nematode (Meloidogyne incognita (Kofoid [...]
Barbetti M.J., 1987: Effects of temperature and humidity on disease caused by phoma medicaginis resistance in some medicago cultivars and the incidence of seed borne inoculum. Australian Journal Of Experimental Agriculture: 851-856 The effects of temperature and humidity on the development of Phoma blackstem disease (caused by Phoma medicaginis) on Medicago spp. were investigated. Disease [...]
Sumner R.M.W., 1983: Effects of breed and level of feeding on leather production from 18 month old wethers. New Zealand Journal Of Experimental Agriculture: 47-52 Skins were compared from 2 groups of 18-mo.-old Cheviot, Drysdale and Romney wethers reared under hill country conditions and offered initial pasture allowances per animal after weaning of either 1.5 [...]
Stimac J.L., 1984: Effects of 2 soybean genotypes resistant and susceptible on population of anticarsia gemmatalis and the incidence of nomuraea rileyi. Anais Da Sociedade Entomologica Do Brasil: 281-294 Effects of the resistant breeding line D75-10230 and the susceptible variety Cobb, grown under different schedules of insecticide and fungicide treatments on A. gemmatalis Huebner populations, [...]