Seedling root response of some Kenyan bread wheat cultivars grown in acid nutrient culture solution containing aluminum

Nyachiro, J. M.; Briggs, K. G.

doi:10.1007/bf00007927

Cited by 4 publications

(2 citation statements)

References 10 publications

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“…The highland areas of wheat production in Kenya: Molo, Mau Narok (Central Rift), Eldoret and Endebess (North Rift) have a pH of 4.3−5.5 [56]. All wheat cultivars grown in these areas have shown susceptibility to the pathogen but no direct screening has been done.…”

Section: Other Wheat Diseases In Kenyamentioning

confidence: 99%

“…All wheat cultivars grown in these areas have shown susceptibility to the pathogen but no direct screening has been done. Aluminum toxicity in acid soils has been documented as the primary factor in the reduction of the crop yields [56]. Seed borne nature of the disease has been reported in wheat cultivars in Kenya [57,58], and studies on disease management revealed that the pathogen can be reduced by the use of seed treatment fungicides [59].…”

Section: Other Wheat Diseases In Kenyamentioning

confidence: 99%

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Past, Current and Future of Wheat Diseases in Kenya

Wanyera¹,

Wamalwa²

2022

Wheat

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Wheat (Triticum aestivum L.) is an important cereal and is among the crops that contribute significantly to food security in Kenya. However, wheat diseases are among the biotic factors that affect wheat production. Considerable progress has been made to control wheat diseases through host plant resistance breeding and chemical applications. Frequent changes in the pathogens population still present a major challenge to achieving durable resistance. Disease surveillance and monitoring of the pathogens have revealed the changes in virulence across the region, justifying the need to develop and deploy more efficient and sustainable strategies to manage the diseases. Understanding the genetic variability and composition of the diseases is important for variety release with appropriate resistance gene combinations for sustainable disease management. This review highlights the prevalence, distribution of wheat diseases, host plant resistance in the key wheat-growing regions of Kenya, and future prospects in Kenya.

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Section: Other Wheat Diseases In Kenyamentioning

confidence: 99%

Section: Other Wheat Diseases In Kenyamentioning

confidence: 99%

Past, Current and Future of Wheat Diseases in Kenya

Wanyera¹,

Wamalwa²

2022

Wheat

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Aluminum tolerance in triticale, wheat, and rye

Kim

Baier

Somers

et al. 2002

Mutations, in Vitro and Molecular Techniques for Environmentally Sustainable Crop Improvement

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Acid soils containing high levels of aluminum (Al) are known to severely limit plant growth on over 1.6 billion hectares worldwide. In the United States, a gradual decline in the pR of many soils both in the Great Plains as weil as the Southeast, has caused many soils to become high in levels of free Al. This worldwide condition encouraged the analysis of wheat (Triticum aestivum L. em Thell.), triticale (X Triticosecale Wittmack), and rye (Secale cereale L.) germplasm from one of the major acid soi! regions of the world (Brazil) in order to evaluate and compare the genetic potential of Al genes for cereal improvement. The objectives were to compare Al-tolerance levels in wheats, triticales, and ryes by measuring root elongation responses in Al-containing hydroponic nutrient solutions. Root elongation was impaired for all species grown in Img/L concentrations of Al. Rye had the longest root regrowth and Al-sensitive wheats had the shortest root regrowth. The triticaies containing a 2D(2R) substitution developed in the mid-1970s bad the poorest root regrowth of all triticale types. The newly developed advanced triticaie lines (AABBRR) yet to be released for commercial production showed the highest degree of Al tolerance of all the triticaie types and approach or exceed the levels observed in rye. This indicated that progress is being made in improving triticaie's Al-tolerance in Brazil. Of all the old and new wheat varieties showing the highest degree of Al-tolerance, none ofthem were better than 'BR 1146' a variety that is at least 50 years old. This indicated that over the past 50 years, although Brazilian wheat breeders have made yield improvements in wheat production, they have not improved Al-tolerance. Rye showed a higher degree of Al-tolerance than the other cereals, when tested in 1 mg/L of al, but as expected some variation was noted.

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