Present status of bacterial blight in cotton genotypes evaluated at Busia and Siaya counties of Western Kenya

Pkania, Kennedy Chepkurui; Venneman, Jolien; Audenaert, Kris; Kiplagat, Oliver; Gheysen, Godelieve; Haesaert, Geert

doi:10.1007/s10658-014-0440-7

Cited by 3 publications

(1 citation statement)

References 27 publications

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“…In coastal, eastern, and central Kenya, approximately 14% of cotton planters cultivate ratooned annual cultivars of upland cotton. Macharia (2013) reported the highest seed cotton yield of the ratooned cultivar HART 89M' was 561.0 kg/ha, which was lower than the 675.0 kg/ha yield of its sown control and much lower than its potential seed cotton yield of 2500 kg/ha (Pkania et al 2014).…”

Section: Ratooning Annual Cotton Cultivars For Perennial Croppingmentioning

confidence: 95%

Harnessing perennial and indeterminant growth habits for ratoon cotton ( Gossypium spp.) cropping

Zhang

Kong

Zhou

et al. 2020

Ecosyst Health Sustain

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Ratoon is the stub or root of a perennial plant that is commonly retained after harvest to produce a following crop. This paper presents a review of ratoon cotton in relation to a broader framework that has been examining perennialization of agriculture for the benefit of ecology and economy. Cotton is botanically indeterminate, but has been treated as an annual after domestication, yet the habit of perenniality is retained and the plants begin to resprout after the first harvest. In some cropping systems, this tendency is exploited using the "ratooning" practice (i.e. growing one or more crops on the rootstock of the first). Ratooning has declined for various reasons such as an increase in the prevalence of pests and diseases and overwintering risk. However, ratooning has many benefits such as no annual tillage before sowing, a well-established root system, and high yield. The three methods of ratooning offer flexibility to balance the environmental and economic benefits in agriculture. The greatest environmental benefits arise from perennial ratoon cropping of semi-wild cotton, and the greatest economic benefit is obtained from biannually cropping modern annual cultivars. However, an optimum solution would be provided by perennial cropping annual cultivars. To realize both environmental and economic benefits, research is needed in the following main areas: preventing the buildup of pests and diseases, breeding the most suitable cotton cultivars for ratooning, and developing light and simplified cultivation (LSC) systems for ratoon cultivation.

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Section: Ratooning Annual Cotton Cultivars For Perennial Croppingmentioning

confidence: 95%

Harnessing perennial and indeterminant growth habits for ratoon cotton ( Gossypium spp.) cropping

Zhang

Kong

Zhou

et al. 2020

Ecosyst Health Sustain

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Genomics-Assisted Breeding for Biotic Stress Syndrome Resistance in Cotton

Abbas

Muqaddasi

2021

Cotton Precision Breeding

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Evaluation Methods, Resistant Germplasm, and Breeding for Resistance to Bacterial Blight in Cotton: A Review

Zhang,

Elassbli,

Zhu

et al. 2024

JCS

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Bacterial blight (BB) caused by Xanthomonas citri pv. malvacearum (Xcm) is an important cotton (Gossypium spp.) production problem. In the U.S., BB has been controlled effectively using resistant cultivars and acid-delinted seed since the 1970s; however, resurgence of BB occurred in the early 2010s because of negligence in breeding. This review provides an up-to-date account on the pathogen, resistance evaluation methods, resistant germplasm lines, and breeding methods. Twenty-two Xcm races have been reported worldwide, and race 18 is currently the only one found in production fields in the U.S. To evaluate cotton for BB resistance, a pressure-sprayer-based method with surfactant in the field and a cotyledon-scratching-based method in the greenhouse are most often used. Breeding for BB resistance was highly successful in Sudan between the late 1930s and 1960s, when many resistance genes were transferred to G. barbadense from G. arboreum, G. herbaceum, G. anomalum, and G. hirsutum. Breeding for BB resistance commenced in the U.S. in the 1940s, leading to development of numerous resistant Upland cultivars. Although backcrossing was often used to transfer resistance genes in early years, forward breeding has been the breeding method of choice. Currently, some and possibly all resistant cultivars in the U.S. possess the resistance gene B12, which confers immunity with no water-soaked symptoms. Although B12-based resistance has held for a long time, identification of new resistant sources is needed to prevent an epidemic of BB due to evolution or introduction of possible new virulent Xcm races.

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Present status of bacterial blight in cotton genotypes evaluated at Busia and Siaya counties of Western Kenya

Cited by 3 publications

References 27 publications

Harnessing perennial and indeterminant growth habits for ratoon cotton ( Gossypium spp.) cropping

Harnessing perennial and indeterminant growth habits for ratoon cotton ( Gossypium spp.) cropping

Genomics-Assisted Breeding for Biotic Stress Syndrome Resistance in Cotton

Evaluation Methods, Resistant Germplasm, and Breeding for Resistance to Bacterial Blight in Cotton: A Review

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