Wascana, a New Durum Wheat

Hurd, E. A.; Patterson, L. A.; Townley‐Smith, T. F.; Mallough, D.; Owen, C. H.

doi:10.4141/cjps72-112

Cited by 19 publications

(7 citation statements)

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“…Root growth of wheat genotypes that had been selected mainly for grain yield was observed in boxes with inclined glass faces (Hurd 1964(Hurd , 1968. Selecting parents and breeding lines at final test stages that had rapid root penetration, large total root length, and a high proportion of total root weight below 30 cm when drought was imposed (Hurd et al 1972b) led to the development of 2 wheat cultivars (Hurd et al 1972a(Hurd et al , 1973. Passioura (1981), however, cautioned that a large, extensive root system may be beneficial only in environments where water is available deep in the soil profile and is replenished each year, and all the water in the profile is not extracted by existing roots.…”

Section: Water Extractionmentioning

confidence: 99%

Viewpoint: Selection for Improved Drought Response in Cool-Season Grasses

Johnson¹,

Asay²

1993

Journal of Range Management

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Water limits the establishment, growth, and production of coolseason grasses on semiarid rangelands, and plant improvement programs for these areas must be capable of screening breeding lines for response to drought. Although many techniques to evaluate various morphological and physiological characteristics have been proposed, few have been used successfully in plant breeding programs. Consequently, a need exists to identify and develop rapid, reliable screening techniques that can assess integrated plant response to drought in large plant populations. Improved seedling emergence has been achieved in Russian wildrye [PsathyrostucIrys junceu (Fischer) Nevski] by selecting for emergence from a deep seeding depth and long coleoptiles. Water uptake by roots is critical, and screening for enhanced seedling root growth in coolseason grasses offers considerable promise. In spite of the important role that stomata1 control has in regulating plant water loss, limited success has been achieved in incorporating desirable stomatal characteristics into improved grass cultivars. Although osmotic adjustment appears beneficial in some crop species, more research is needed before cool-season grasses should be selected based on osmotic adjustment. Selection for improved water-use efficiency in cool-season grasses based on carbon isotope discrimination is a promising approach. Successful incorporation of these various traits into improved cool-season grass cultivars necessitates close cooperation between breeders and physiologists.

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Section: Water Extractionmentioning

confidence: 99%

Viewpoint: Selection for Improved Drought Response in Cool-Season Grasses

Johnson¹,

Asay²

1993

Journal of Range Management

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“…Wascana (registered in 1971) and Wakooma (registered in 1973) became the predominant cultivars from 1974 to 1987. These were sister lines derived from the cross of Lakota*2/Pelissier and were higher yielding than Hercules in the Brown Soil zones of western Canada while being similar to Hercules in end-use quality and disease resistance (Hurd et al 1972(Hurd et al , 1973. Wakooma was very similar to Wascana except that it had stronger gluten, which was preferred in the export market (Hurd et al 1973), while Wascana had higher yellow pigment content.…”

Section: Canadian Journal Of Plant Sciencementioning

confidence: 99%

A review of wheat cultivars grown in the Canadian prairies

McCallum¹,

DePauw²

2008

Can. J. Plant Sci.

115

104

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Wheat is Canada's largest crop with most of the production in the western Canadian prairie provinces of Manitoba, Saskatchewan and Alberta. Since wheat production started in western Canada, over 100 yr ago, market classes of hexaploid spring bread wheat (Triticum aestivum L.) were the dominant type of wheat, although production of durum wheat [Triticum turgidum L. ssp. durum (Desf.) Husn.)] has grown significantly over this period, and hexaploid winter wheat was grown on a relatively small portion of the wheat area. Within hexaploid wheat there has been diversification into a number of market classes based on different end-use quality criteria. The predominant spring bread wheat class has been the Canada Western Red Spring (CWRS) class. A few cultivars were grown extensively over a long period of time, such as the CWRS wheat Thatcher, which was the dominant cultivar from 1939 to 1968, and Kyle, which was the leading Canada Western Amber Durum (CWAD) cultivar from 1988 to 2004. Other cultivars dominated particular wheat classes for many years such as Glenlea, Canada Western Extra Strong (CWES) spring wheat and Norstar, Canada Western Red Winter (CWRW) wheat. The reasons for newer cultivars replacing older cultivars include improvements in grain yield, resistance to stem rust (Puccinia graminis Pers.:Pers. f. sp. tritici Eriks. & E. Henn.), leaf rust (Puccinia triticina Eriks.), and other diseases, resistance to wheat stem sawfly (Cephus cinctus Nort.), enhanced end-use quality, and other agronomic characteristics such as lodging resistance. Cultivars with improved pest resistance were often rapidly adopted, such as Thatcher and Selkirk, in response to the stem rust epidemics in the 1930s and 1950s, and Rescue and Lillian in response to wheat stem sawfly epidemics in the 1940s and 2000s. Improved grain yield led to the rapid increase of many cultivars including Marquis in the 1910s and 1920s, Neepawa, Wascana and Wakooma in the 1970s, AC Barrie in the 1990s, and Superb in the 2000s. Increased breeding efforts recently have led to many more highly adapted cultivars and subsequently more diverse wheat production. Wheat classes and cultivars in the prairies continue to improve and diversify to meet the challenges of the marketplace and the production concerns of wheat growers. Key words: Rust, fusarium head blight, cereal quality, protein

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“…The study also included the Chinese winter wheat cultivars Aikang 58, Taikong 6, Tianmin 668 and Wenmai 19, which are widely grown in the Yellow and Huai River Valley Facultative Wheat Zone, where the field experiments in this study were conducted. Wascana and Wakooma, two Canadian sister cultivars of durum wheat ( T. durum , 2 n = 28, genome AABB; Hurd et al ., , ), were included in this study.…”

Section: Methodsmentioning

confidence: 99%

The impact of resistant and susceptible wheat cultivars on the multiplication of Heterodera filipjevi and H. avenae in parasite‐infested soil

et al. 2016

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Cereal cyst nematode (CCN) severely threatens wheat production in many regions of China. Cultivars susceptible to CCN are the main reason for its spread. This study was initiated to determine whether wheat cultivars conferring different resistance levels are the dominant determinants of CCN populations in the rhizospheric soil. Field experiments were conducted at two locations in Henan province, China, where high populations of Heterodera filipjevi or H. avenae have occurred, during the growing seasons of 2010/11 and 2011/12. Conventional enumeration of white female nematodes on the plant roots, reproductive factor (Rf) and a molecular diagnostic approach, PreDicta B test, a soil testing service based on a sensitive quantitative PCR technique, were used to determine the nematode populations in the rhizospheric soils of seven common wheat and durum wheat cultivars with different reactions to CCN. The resistant responses to CCN conferred by durum wheat Wascana and Wakooma and common wheat Madsen were effective against both H. filipjevi and H. avenae and resulted in significantly fewer nematodes (<5 females) on the roots, and lower Rf. Those cultivars were effective in limiting nematode propagation, resulting in fewer CCN eggs in their rhizospheric soils. Taikong 6 conferred moderate resistance (5-10 females) to both Heterodera species. Tianmin 668 only showed resistance to H. avenae. Aikang 58 and Wenmai 19 were susceptible to both CCN species, which facilitated increases in the nematode populations. These results demonstrate that the reactions to CCN of wheat genotypes have obvious impact on the propagation of nematodes.

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Wascana, a New Durum Wheat

Cited by 19 publications

References 0 publications

Viewpoint: Selection for Improved Drought Response in Cool-Season Grasses

Viewpoint: Selection for Improved Drought Response in Cool-Season Grasses

A review of wheat cultivars grown in the Canadian prairies

The impact of resistant and susceptible wheat cultivars on the multiplication of Heterodera filipjevi and H. avenae in parasite‐infested soil

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