Cultivar ✕ Tillage Interaction of Hard Red Spring Wheat Cultivars

Hall, E. F.; Cholick, F. A.

doi:10.2134/agronj1989.00021962008100050019x

Cited by 34 publications

(54 citation statements)

References 6 publications

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“…Using a small set of wheat varieties, Cornish (1987) concluded there was little evidence for genotypes to yield differently with different tillage practices. However, this evidence is contrary to the work of Hall and Cholick (1989) and Cox (1991) whom identified changes in the ranking of wheat varieties for yield across different tillage systems. Trethowan et al (2005) point out that studies contrasting grain yield under tillage systems are scarce and that the cultivars tested were developed using conventional tillage practices.…”

Section: Future Directions and Conclusioncontrasting

confidence: 98%

Physiological traits and cereal germplasm for sustainable agricultural systems

2006

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Plant breeding is not a discipline that readily comes to mind when agricultural sustainability is being considered. Sustainability is normally associated with farming practices such as stubble retention, direct-drilling, or amelioration practices such as contour farming or liming, or rotation practices for nutrient management and disease control. The contribution of plant breeding will be in providing germplasm for these changed practices and devising new methods of selection. This paper reviews opportunities where plant breeding can contribute to improvements in sustainable farming practices. The emphasis is on rainfed cropping systems and cereal improvement. The main contribution for breeding is to (i) increase crop water and nutrient use so that less escapes from the root profile; and (ii) preserve the soil resource with conservation farming systems by developing cultivars specifically adapted to changed farming systems and competitive cultivars that reduce herbicide use. To achieve these outcomes identification of desirable traits, suitable selection methods and development of appropriate germplasm are discussed.

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Section: Future Directions and Conclusioncontrasting

confidence: 98%

Physiological traits and cereal germplasm for sustainable agricultural systems

2006

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“…Results of a series of winter wheat tillage studies conducted in the Pacific Northwest indicated that genotype x tillage interactions for grain yield were significant (Allan, 1982). Hall & Cholick (1989) also reported significant cultivar x tillage interactions for grain yield of hard red spring wheat in the Northern Great Plains. Cox et al (1986) found tillage to have a significant effect on grain yield of winter wheat during years when differential winter kill was recorded.…”

Section: Introductionmentioning

confidence: 89%

Breeding for hard red winter wheat cultivars adapted to conventional-till and no-till systems in northern latitudes

Cox

1991

Euphytica

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Conservation tillage in the Great Plains of North America has increased in recent years, in part, to control soil erosion, increase soil water storage and reduce production costs. No-till production is recommended for winter wheat (Triticum aestivum L.) in northern latitudes for the purpose of trapping snow and protecting the crop from freezing temperatures. A 5 year field study was conducted at four North Dakota locations from 1984-85 through 1988-89 to determine if significant cultivar x tillage interactions existed for grain yield of winter wheat. Fourteen hard red winter wheat cultivars were planted in both conventional-till and no-till systems. Significant cultivar x tillage interactions were obtained for grain yield from both a weighted analysis across all environments and from individual analyses of 12 of the 16 environments in which wheat survived under both tillage systems (P < 0.05). Regression of cultivar yield on mean environment yield produced b values that varied little between conventional till and no-till for 10 of the 14 cultivars. The top five yielding cultivars were the same for both tillage systems and had b values > 1.0. Although the cultivar x tillage interaction may be a result of differential winter survival rather than tillage per se, this study suggests that selection for winter wheats with superior yield performance can be conducted under either no-till or conventional-till systems.

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“…Results from these studies suggest that tillage system does not need to play a role in varietal selection. Hall and Cholick [80], however, found significant variety × tillage interactions for grain yield over two tillage systems, and suggested that selection under no tillage conditions should be considered to develop spring wheat varieties for no tillage systems. Additionally, in a study on the effect of mechanical harrowing on spring wheat, a genotype × treatment interaction was found with weed weight per plot as a response variable [60].…”

Section: Tolerance To Mechanical Weed Controlmentioning

confidence: 99%

The need to breed crop varieties suitable for organic farming, using wheat, tomato and broccoli as examples: A review

Bueren

Jones

Tamm

et al. 2011

NJAS: Wageningen Journal of Life Sciences

326

209

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a b s t r a c tIt is estimated that more than 95% of organic production is based on crop varieties that were bred for the conventional high-input sector. Recent studies have shown that such varieties lack important traits required under organic and low-input production conditions. This is primarily due to selection in conventional breeding programmes being carried out in the background of high inorganic fertilizer and crop protection inputs. Also, some of the traits (e.g., semi-dwarf genes) that were introduced to address problems like lodging in cereals in high-input systems were shown to have negative side-effects (reduced resistance to diseases such as Septoria, lower protein content and poorer nutrient-use efficiency) on the performance of varieties under organic and low-input agronomic conditions. This review paper, using wheat, tomato and broccoli as examples, describes (1) the main traits required under low-input conditions, (2) current breeding programmes for organic, low-input agriculture, (3) currently available breeding and/or selection approaches, and (4) the benefits and potential negative side-effects of different breeding methodologies and their relative acceptability under organic farming principles.

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Cultivar ✕ Tillage Interaction of Hard Red Spring Wheat Cultivars

Cited by 34 publications

References 6 publications

Physiological traits and cereal germplasm for sustainable agricultural systems

Physiological traits and cereal germplasm for sustainable agricultural systems

Breeding for hard red winter wheat cultivars adapted to conventional-till and no-till systems in northern latitudes

The need to breed crop varieties suitable for organic farming, using wheat, tomato and broccoli as examples: A review

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