Registration of upland cotton cultivar ‘Acala 1517‐20’ resistant to Fusarium wilt race 4

Zhang, Jinfa

doi:10.1002/plr2.20022

Cited by 6 publications

(5 citation statements)

References 21 publications

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“…In our current study, the highly susceptible Pima S‐7 incurred 99% mortality across eight replications with artificial inoculation, indicating a uniform distribution of a high FOV4 inoculum density. As a comparison, field evaluations can achieve up to 90% mortality in highly susceptible cotton including Pima S‐7 (this study) and DP 357 (Zhang, 2020), suggesting some escapes in the field. As for other genotypes, proportions of escapes were much higher.…”

Section: Discussionmentioning

confidence: 78%

“…The number of dead plants was used as an indirect measurement of FOV4 inoculum density (i.e., spore counts). In Far‐west Texas and southern New Mexico, seedling diseases due to damping‐off are minimal under extremely dry weather conditions (Zhang, 2020). In fact, over the three seasons since, samples of seedlings that died in the Fabens field were cultured for pathogens in the laboratory using standard isolation procedures, and FOV4 was the only pathogen isolated from diseased seedlings (T. Isakeit, personal communication, 2021).…”

Section: Methodsmentioning

confidence: 99%

“…Developing and utilizing FOV4‐resistant cultivars remains the only cost‐effective approach to control this disease (Sanogo & Zhang, 2016; Zhang et al., 2015). Recently, resistant Upland germplasm is reported (Ulloa et al., 2020; Zhang, 2020; Zhang et al., 2016; Zhang, Abdelraheem, Dever, Frelichowski, Wheeler, Zhu et al., 2020; Zhang, Idowu, & Wedegaertner, 2020), but there are currently no commercially available transgenic Upland cotton cultivars with known resistance to FOV4. Several commercial transgenic Pima cotton cultivars were reported to be resistant or tolerant to FOV4 through field selections and testing.…”

Section: Introductionmentioning

confidence: 99%

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Use of a Latin square design to assess experimental errors in field evaluation of cotton for resistance to Fusarium wilt Race 4

et al. 2022

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Field evaluation of cotton for resistance to Fusarium oxysporum f. sp. vasinfectum Race 4 (FOV4) is important in breeding. In this study, an 8 × 8 Latin square design was arranged in two FOV4‐infested fields each with two trials to evaluate eight cotton (Gossypium hirstum) cultivars based on mortality rate (MR) and root vascular staining (RVS). For a comparison, two trials of the same design were grown in the greenhouse. Consistent with the mapping pattern of MR in the Texas field, the analysis of variance confirmed the existence of effects due to tiers not planting rows in the Texas location only. Significant variation due to cultivars was consistently detected in the two trials of both locations. The repeatability was confirmed by significant correlation coefficients between most tiers (replications) and between the two trials in each field. The greenhouse test had the highest mean MR (72–78%) and lowest coefficients of variation (CV; 17–28%), followed by the Texas field with a lower MR (36–57%) and similar CV (22–29%); and the New Mexico test had the highest CV (59–73%) and the lowest MR (13–18%). The MR between the two fields and between the fields and the greenhouse were significantly correlated. ‘Pima S‐7’ had the highest MR (79–93%), whereas ‘FM 2334GLT’ had the lowest (15–35%), consistent with RVS at crop maturity. Among randomized complete block designs (RCBD) with three to seven replications, the mean squared error and CV were the lowest in RCBD with three replications.

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Section: Discussionmentioning

confidence: 78%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Use of a Latin square design to assess experimental errors in field evaluation of cotton for resistance to Fusarium wilt Race 4

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“…Many breeding lines of Pima cotton have also been developed in the public sector (Ulloa et al., 2006, 2009, 2016). The FOV4‐resistance of different sources was identified in three recently released Upland cotton ( G. hirsutum L.) cultivars NuMex COT 15 GLS, NuMex COT 17 GLS, and Acala 1517–20 (Zhang, 2020; Zhang et al., 2016, Zhang, Idowu, & Wedegaertner, 2020). There have been numerous other studies, including FOV4 detection (Kim et al., 2005; Ortiz et al., 2017), inoculum density (Hao et al., 2009), control methods (Bennett et al., 2011), and genetics of resistance (Ulloa et al., 2013; Wang et al., 2018).…”

Section: Introductionmentioning

confidence: 99%

Studies of evaluation parameters for resistance to Fusarium wilt in cotton caused by Fusarium wilt race 4 (Fusarium oxysporumf. sp.vasinfectum)

Zhang

Elkins‐Arce²,

Wheeler³

et al. 2022

Crop Science

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Fusarium wilt, caused by Fusarium oxysporum f. sp. vasinfectum race 4 (FOV4), is an early season vascular disease with symptoms including seedling wilt and mortality. The objectives of this study were to investigate the relationship between mortality rate (MR) and disease severity rating (DSR) based on root vascular staining (RVS)-DSR and stem vascular discoloration (SVD)-DSR in the field and the relationship of MR in controlled conditions with MR and DSR in the field. Results from two field tests and two greenhouse tests each with a Latin square design for eight cultivars of cotton (Gossypium spp.) and two field progeny-row tests were analyzed. In the field, MR at the square stage was significantly correlated with both DSR (RVS) and DSR (SVD) at crop maturity, and they were also significantly correlated with DSR based on both MR and RVS-DSR (MR+RVS) and both MR and SVD-DSR (MR+SVD). The results show that DSR (MR+RVS) was the most accurate in assessing FOV4 resistance, and DSR (SVD) and DSR (MR+SVD) can be used in combination with DSR (RVS) and DSR (MR+RVS), or as the substitutes for RVS. Mortality rate in the greenhouse was significantly correlated with MR and DSR (MR+RVS) and DSR (MR+SVD) in the field, indicating consistency between evaluations under both conditions. Furthermore, foliar symptoms-based MR and DSR under controlledconditions were significantly correlated, with coefficients of variation at 20 to 30% in other related studies. The results confirm the validity of using the two parameters in greenhouse evaluations for FOV4 resistance in cotton.

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“…Other recent releases include insect‐resistant and/or herbicide‐tolerant ‘Acala 1517‐99W’ (Zhang, Cantrell, Waddell, Flynn, & Hughs, 2008), ‘Acala 1517‐09R’ (Zhang, Flynn, Hughs, Bajaj, & Jones, 2011a), and ‘Acala 1517‐16 B2RF’ (Zhang, Flynn, Hughs, & Jones, 2016a), which were on the ‘Acala 1517‐99’ background, glandless ‘Acala 1517‐18 GLS’ with Acala 1517‐08 in its pedigree (Zhang et al., 2019), and ‘Acala 1517‐20’, moderately resistant to Fusarium wilt race 4 (FOV4, caused by Fusarium oxysporum f. sp. vasinfectum ) and with ‘Acala 1517‐95’ in its pedigree (Zhang, 2020). However, these cultivars had similar lint yield to Acala 1517‐99 or Acala 1517‐08.…”

Section: Introductionmentioning

confidence: 99%

Registration of ‘Acala 1517‐21’ Cotton Cultivar

Zhang

2020

J of Plant Registrations

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The New Mexico Agricultural Experiment Station announces the release of upland cotton (Gossypium hirsutum L.) cultivar 'Acala 1517-21' (Reg. no. CV-144, PI 693757). Acala 1517-21 was derived from a single plant selection in F 3 from a bi-parental cross between LA05307029 and AU-5491. This new cultivar was tested in eight replicated field trials in New Mexico in 2012-2017 and 21 tests across 12 states of the Cotton Belt in 2016-2017. In New Mexico, Acala 1517-21 yielded similarly to medium-staple cultivars or transgenic commercial Acala cultivars including 'PHY 725 RF', 'PHY 755 WRF', 'PHY 764 WRF', 'FM 2322GL', and 'FM 1830GLT'. Compared with 'Acala 1517-08', Acala 1517-21 averaged 12.9% higher lint yield and 11.5% higher lint percentage, with a similar boll weight, fiber length, length uniformity, elongation, micronaire, and short fiber content. However, Acala 1517-21 had similar or slightly lower fiber strength with significantly lower strength and elongation in one test. Compared with commercial transgenic and nontransgenic cultivars across the Cotton Belt, Acala 1517-21 had consistently longer and stronger fibers or lower micronaire readings. Acala 1517-21 represents a high-yielding upland cotton cultivar with high lint percentage and a long staple. 1 INTRODUCTION Upland cotton (Gossypium hirsutum L.) produces more than 95% of the raw cotton with a short (<25 mm) to medium (25-30 mm) staple length globally, while the remaining cotton is predominantly produced by G. barbadense L. (known as pima, Egyptian, or Sea-Island cotton) with long-staple (LS, 30-35 mm) or extra-long-staple (>35 mm) fibers. Acala cotton is a special type of upland cotton and known for its premium fiber quality, and it produces long-staple or near-long-staple fibers developed and grown in New Mexico and California. Among 37 Acala 1517

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Registration of upland cotton cultivar ‘Acala 1517‐20’ resistant to Fusarium wilt race 4

Cited by 6 publications

References 21 publications

Use of a Latin square design to assess experimental errors in field evaluation of cotton for resistance to Fusarium wilt Race 4

Use of a Latin square design to assess experimental errors in field evaluation of cotton for resistance to Fusarium wilt Race 4

Studies of evaluation parameters for resistance to Fusarium wilt in cotton caused by Fusarium wilt race 4 (Fusarium oxysporumf. sp.vasinfectum)

Registration of ‘Acala 1517‐21’ Cotton Cultivar

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