Tolerance of commercial Upland (Gossypium hirsutum) and Pima (G. barbadense) cotton cultivars, advanced breeding lines and glandless cotton to halosulfuron (Sandea) herbicide under field conditions

Zhang, Jinfa; Abdelraheem, Abdelraheem; Wedegaertner, Tom

doi:10.1007/s10681-018-2325-x

Cited by 2 publications

(2 citation statements)

References 29 publications

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“…Furthermore, the G1 2 G1 2 g1 3 g1 3 had lesser leaf injury than the g1 2 g1 2 G1 3 G1 3 isoline, indicating that the prometryn tolerance of Gl 2 is higher than Gl 3 . Zhang et al (2019b) conducted a field study with four replicated tests to evaluate 81 cotton genotypes, including 8 Pima and 73 Upland genotypes, and their responses to halosulfuron (Sandea) at the 4-5th true-leaf stage. Three glandless cotton lines were significantly more sensitive than all the glanded cotton tested except for one sensitive glanded cultivar.…”

Section: Responses To Disease Infections In Glandless Cottonmentioning

confidence: 99%

“…The objectives of this study were to review the current status of genetics and breeding for glandless cotton, with a focus on the progress in breeding for glandless Upland cotton in New Mexico, United States (Zhang et al, 2014a(Zhang et al, ,b,c,d, 2016a(Zhang et al, , 2017(Zhang et al, , 2018(Zhang et al, , 2019bZhang et al, 2020b). Other relevant studies on glandless cotton from New Mexico, such as responses to insects and crop management practices, were also mentioned in this study.…”

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Genetics and Breeding for Glandless Upland Cotton With Improved Yield Potential and Disease Resistance: A Review

Zhang

Wedegaertner

2021

Front. Plant Sci.

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Glandless cotton (devoid of toxic gossypol) can be grown as a triple-purpose crop for fiber, feeds, and food (as an oil and protein source). However, its sensitivity to insect pests and its low yield due to the lack of breeding activities has prevented the realization of its potential in commercial seed production and utilization. Since the mid-1990s, the commercialization of bollworm and budworm resistant Bt cotton and the eradication of boll weevils and pink bollworms have provided an opportunity to revitalize glandless cotton production in the United States. The objectives of this study were to review the current status of genetics and breeding for glandless cotton, with a focus on the progress in breeding for glandless Upland cotton in New Mexico, United States. Because there existed a 10–20% yield gap between the best existing glandless germplasm and commercial Upland cultivars, the breeding of glandless Upland cultivars with improved yield and disease resistance was initiated at the New Mexico State University more than a decade ago. As a result, three glandless Upland cultivars, i.e., long-staple Acala 1517-18 GLS, medium staple NuMex COT 15 GLS, and NuMex COT 17 GLS with Fusarium wilt race 4 resistance were released. However, to compete with the current commercial glanded cotton, more breeding efforts are urgently needed to introduce different glandless traits (natural mutations, transgenic or genome-editing) into elite cotton backgrounds with high yields and desirable fiber quality.

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Section: Responses To Disease Infections In Glandless Cottonmentioning

confidence: 99%

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confidence: 99%

Genetics and Breeding for Glandless Upland Cotton With Improved Yield Potential and Disease Resistance: A Review

Zhang

Wedegaertner

2021

Front. Plant Sci.

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Tolerance of Pima and Upland cotton to trifloxysulfuron (Envoke) herbicide under field conditions

2021

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Trifloxysulfuron (Envoke) is an acetolactate synthase-inhibitor herbicide and can be used to control many broadleaf weeds and nutsedges in cotton production. However, there is a lack of information on genotypic variation in response to the herbicide. In this field study, 60 Pima (Gossypium barbadense L.) lines, 122 Upland (G. hirsutum L.) lines, and 9 Upland × Pima segregating populations were divided into five tests (18A, 18B, 18G, 18RB, and 18HQ) to evaluate trifloxysulfuron tolerance at the 7-true leaf stage (42 days after planting) under the same field conditions in 2018. Across the five tests, Pima cotton genotypes tested in this study did not show any visual crop injury based on percentage of plants with chlorosis at 6 days after treatment (DAT), indicating consistent and high levels of trifloxysulfuron tolerance. However, the response to trifloxysulfuron within Upland cotton is highly variable. While Upland cotton is overall more sensitive to trifloxysulfuron with crop injury up to 80% than Pima cotton, 19 lines had injury below 5% including one line with no visual injury, and 19 lines had injury between 5% and 10%. In test 18HQ with 15 transgenic Upland cultivars and 17 non-transgenic Upland lines, the analysis of variance detected a significant genotypic difference. The broad-sense heritability estimates for trifloxysulfuron tolerance based on crop injury at 6 DAT was 0.555, suggesting that trifloxysulfuron tolerance in Upland cotton is moderately heritable. This study represents the first report that Pima cotton and many Upland cotton lines are highly tolerant to trifloxysulfuron with no or little crop injury.

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Tolerance of commercial Upland (Gossypium hirsutum) and Pima (G. barbadense) cotton cultivars, advanced breeding lines and glandless cotton to halosulfuron (Sandea) herbicide under field conditions

Cited by 2 publications

References 29 publications

Genetics and Breeding for Glandless Upland Cotton With Improved Yield Potential and Disease Resistance: A Review

Genetics and Breeding for Glandless Upland Cotton With Improved Yield Potential and Disease Resistance: A Review

Tolerance of Pima and Upland cotton to trifloxysulfuron (Envoke) herbicide under field conditions

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