Genetic engineering offers great potential for developing peanut cultivars resistant to a broad spectrum of pathogens that pose a recurring threat to peanut health. In an effort to improve the disease resistance of peanuts, three transgenic peanut lines were developed. Somatic embryos of the peanut cultivar Okrun were transformed by inserting a chitinase gene from rice and/or a β-1-3-glucanase ...

A n n u a l W h e a t N e w s l e t t e r V o l. 5 8. Our organic breeding program is highly focused on the development of new, organic cultivars of alternative or underutilized cereals such as einkorn and emmer. A new, organically bred, einkorn cultivar, Mv Menket, was released last year. This is the first semidwarf einkorn cultivar in the market, with elevated yield potential, and excellent r...

Wine grape cultivar selection was examined as a use of biotechnology and a part of integrated plant disease management in grape and wine production. The efficacy of 18 wine grape cultivars against various wine grape diseases was examined using a relatively low-input fungicide regimen to determine whether these diseases can be managed under hot and humid southeastern Virginia conditions over 5 y...

We report on the evaluation of a novel grass hybrid that provides efficient forage production and could help mitigate flooding. Perennial ryegrass (Lolium perenne) is the grass species of choice for most farmers, but lacks resilience against extremes of climate. We hybridised L. perenne onto a closely related and more stress-resistant grass species, meadow fescue Festuca pratensis. We demonstra...

Planning the artificial pollination of agricultural crops requires knowledge of the floral biology and reproductive system of the crop in question. Many studies have shown that rapeseed (Brassica napus Linnaeus) is self-compatible and self-pollinated, but its productivity may be increased by insect visitation. In the present study, the floral biology and the response of productivity to insect v...

. Yoshida, T. 2003. Breeding of citrus cultivar ‘Kiyomi’ with high quality and monoembryony. Breed. Res. (Japan) 5: 103–107 (In Japanese with English abstract). Yoshida, T., H. Nesumi, T. Yoshioka, H. Ieki, Y. Ito, M. Nakano, I. Ueno, Y. Yamada, S. Murase and F. Takishita. 2003. New kumquat cultivar ‘Puchimaru’. Bull. Natl. Inst. Fruit Tree Sci. (Japan) 2: 9–16 (In Japanese with English abstract).

Two soybean breeding lines (D82-2397A and J82-190) resistant to Heterodera glycines race 5 produced higher yields (P = 0.05) than the race 4-resistant cultivar Bedford for 2 years when planted in a field infested with H. glycines race 5 at Tiptonville, Tennessee. Yields were not different between D82-2397A and Bedford when planted in fields infested with race 3, race 9, or with no cyst nematode...

field trials. The use of row-column analysis or neighbor analysis has been shown to increase the precision of a Spatial analyses of yield trials are a powerful method of adjusting large number of grain yield trials (Cullis and Gleeson, treatment means for spatial variation and improving statistical precision of mean estimation. Because yield trials are typically repeated 1989; Cullis and Gleeso...

Total proteins, esterases and acid phosphatases from pollen, seeds and leaves of three sunflower cultivars were separated by 2-D electrophoresis. The characteristic peptides for each cultivar were identified. The seeds and pollen of the cultivar Wielkopolski contained 45 and 37 characteristic peptides, respectively, while the seeds and pollen of Coril contained 73 and 35 characteristic peptides...

The availability of soybean mutants with altered symbiotic properties allowed an investigation of the shoot or root control of the relevant phenotype. By means of grafts between these mutants and wild-type plants (cultivar Bragg and Williams), we demonstrated that supernodulation as well as hypernodulation (nitrate tolerance in nodulation and lack of autoregulation) is shoot controlled in two m...