One of the goals of organic crop production is to grow species which combinetraditional pro-healthy properties, innovative cultivation practices and harmonywith the environment. Among the ancient species the spring spelt is especiallypredisposed for organic farming. In comparison with common wheat spring spelthas a relatively short research history on physiological analysis of growth anddevelop...

Two types of hybrid chiorosis, 1 and 2, are known in wheat. The factorial basis of type 1 chlorosis was established by Hermsen (1966) and Tsunewaki (1966). It is caused by two complementary genes, Chi and Chg. Ch2 was located by Tsunewaki and Kihara (1961) on chromosome 3D. For the Chi gene, Nishikawa (1964) reported a location in the A or B genome but not in D. Recently, Hermsen and Waninge (1...

Parental, F(1) , F (2) , BC (1) and BC (2) generations of four crosses involving four cultivars of durum wheat (Triticum durum Desf.) were evaluated at two sites in Tunisia. A three-parameter model was found inadequate for all cases except crosses Chili x Cocorit 71 at site Sidi Thabet and Inrat 69 x Karim at both sites. In most cases a digenic epistatic model was sufficient to explain variatio...

It is a common practice to grow winter wheat (Triticum aestivum L.) as a dual-purpose crop in the U.S. Southern Great Plains to decrease production risk and to increase profit margin through cattle (Bos taurus) production. Crop management of the dual-purpose wheat is complex because of the tradeoffs between beef production and wheat grain yield. A wheat grazing model helps in making optimal dec...