An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
JohnieN. Jenkins, et al. ; Yi Zhu; Gregory N. Thyssen; Abdelraheem Abdelraheem; Zonghua Teng; David D. Fang; Jack C. McCarty; Tom Wedegaertner; Kater Hake; Jinfa Zhang; Show all 10 Authors
Fusarium oxysporum f. sp. vasinfectum; Fusarium wilt; Gossypium hirsutum; chromosomes; cotton; cultivars; genes; genome-wide association study; genomics; meta-analysis; phenotype
Abstract:
... KEY MESSAGE: A major QTL conferring resistance to Fusarium wilt race 4 in a narrow region of chromosome D02 was identified in a MAGIC population of 550 RILs of Upland cotton. Numerous studies have been conducted to investigate the genetic basis of Fusarium wilt (FW, caused by Fusarium oxysporum f. sp. vasinfectum, FOV) resistance using bi-parental and association mapping populations in cotton. In ...
JohnieN. Jenkins, et al. ; Jack C. McCarty Jr.; Russell W. Hayes; Martin J. Wubben; David D. Fang; Gregory N. Thyssen; Linghe Zeng; B. Todd Campbell; Don C. Jones; Show all 9 Authors
Gossypium hirsutum; genetic background; homozygosity; quantitative trait loci
Abstract:
... The genetic base for upland cotton (Gossypium hirsutum L.) is narrow for the economically important fiber traits of strength and length. We developed random mated population RMUP‐C5 from 11 parental lines and released seed in 2008. We have now developed 550 recombinant inbred lines (RILs) from this population and evaluated them for fiber properties in eight environments. We report the development ...
... Pelleted biosolids (PBS) can be used as a low-cost nutrient source alternative to conventional fertilizers for row crop production. A field study was conducted on a Marietta loam at the Plant Science Center at Mississippi State to determine the response of row crops to PBS relative to poultry litter (PL) and inorganic fertilizer N in the presence/absence of cover crop residues. Fertilization treat ...
... Measuring and assessing soil properties is critical for understanding how changes in agronomic practices affect the capability of soil to support cropping systems. A field study was conducted on a Marietta silt loam soil at the Plant Science Center at Mississippi State University to determine the effects of pelleted biosolids (PBS) relative to poultry litter (PL) and inorganic N fertilizer applied ...
... Exporting excess mineral nutrients from soils that receive repeated poultry litter (PL) applications may be enhanced by rotating crops and fertilizers that increase crop yield. This study determined the magnitude of yield enhancement and mineral nutrient removal at harvest by cotton–corn–soybean rotation systems and by PL‐synthetic fertilizer rotations. Cotton (Gossypium hirsutum L.), corn (Zea ma ...
JohnieN. Jenkins, et al. ; Abdelraheem Abdelraheem; Gregory N. Thyssen; David D. Fang; Jack C. McCarty; Tom Wedegaertner; Jinfa Zhang; Show all 7 Authors
Gossypium hirsutum; chromosomes; cotton; cultivars; drought; drought tolerance; genomics; greenhouses; marker-assisted selection; plant height; quantitative traits; salt stress; salt tolerance; seedlings; stress tolerance; transgressive segregation; water stress
Abstract:
... Cotton is grown in arid and semi-arid regions where abiotic stresses such as drought and salt are prevalent. There is a lack of studies that simultaneously address the genetic and genomic basis of tolerance to drought and salt stress. In this study, a multi-parent advanced generation inter-cross (MAGIC) population of 550 recombinant inbred lines (RILs) together with their 11 Upland cotton parents ...
... Bermudagrass [Cynodon dactylon (L.) Pers.] hay fields receiving broiler litter offer a means to both produce high quality forage and export excess manure nutrients, for example P. This 3‐yr study determined the nutritive value, P removal, and soil P for ‘Russell’ and ‘Tifton 44’ bermudagrass receiving 4 ton ac⁻¹ broiler litter and 98 lb ac⁻¹ N (as NH₄NO₃) annually and cut at 21‐, 35‐, and 49‐d int ...
... Cotton (Gossypium hirsutum) resistance to root-knot nematode (RKN) (Meloidogyne incognita) is controlled by quantitative trait loci (QTLs) on chromosomes 11 (CHR11) and 14 (CHR14). The individual contributions of these QTLs to resistance are not completely understood. We developed near isogenic lines susceptible at both loci (null), having CHR11 or CHR14 alone, and having both QTLs (CHR11/CHR14). ...
... Cottonseed is the second-most common plant protein source after soybean, and the fifth-most common oil source after soybean, palm tree, colza and sunflower. There has been little economic incentive until recently to breed for cottonseed nutritional components. In our previous studies we used chromosome substitution (CS) lines to associate novel traits of importance with specific substituted chromo ...
... Palmer amaranth is a problematic common weed species, especially in cotton. With the wide use of chemical herbicide and herbicide-tolerant transgenic cotton lines, Palmer amaranth populations have developed tolerance to commonly used herbicides. It is imperative to develop alternative weed control methods to slow the evolution of herbicide-resistant weed populations and provide new strategies for ...
... Upland cotton (Gossypium hirsutum L.) is the major species of cotton due to its high yield and good adaptability. With much less land area, pima cotton (G. barbadense L.) is also cultivated for its superior fibers. Existing research efforts have mainly focused on introgression of fiber quality traits from pima into upland cotton, with few on the seed mineral and protein contents. In this research, ...
... Nutrient losses through leaching and surface runoff are the main problems in no-till upland soils in Mississippi. A two-year study was conducted in 2016 and 2017 on an Atwood silt loam soil to evaluate the impact of winter wheat (Triticum aestivum L.) cover crop (WCC) in no-till dryland cotton (Gossypium hirsutum L.) received poultry litter (PL) on nitrogen (N) and phosphorus (P) losses in leached ...
... Fineness and maturity are two cotton (Gossypium spp.) fiber properties that respectively estimate the fiber diameter and degree of internal fiber thickening. Cotton researchers have been searching for accurate and efficient ways of measuring them due to their important roles in lint yield, fiber quality, and downstream textile performance. The recent development of the Cottonscope has offered an i ...
Agricultural Research Service; Gossypium hirsutum; Rotylenchulus reniformis; cottonseed oil; fatty acid composition; germplasm; oleic acid; oxidative stability; root-knot nematodes; temperature
Abstract:
... Four upland cotton (Gossypium hirsutum L.) germplasm lines, HOa1 (Reg. no. GP‐1072, PI 691652), HOa2 (Reg. no. GP‐1073, PI 691653), HOa3 (Reg. no. GP‐1074, PI 691654), and HOa4 (Reg. no. GP‐1075, PI 691655), with elevated levels of seed oil oleic acid were developed and released by the USDA‐ARS. High seed oil levels of oleic acid have been reported for a small number of G. barbadense L. accessions ...
Glycine max; Root Zone Water Quality Model; Triticum aestivum; Zea mays; cash crops; corn; cover crops; crop rotation; evaporation; evapotranspiration; grain yield; long term effects; mulches; mulching; production technology; rain; rowcrops; runoff; simulation models; soil water; soybeans; summer; water use efficiency; winter wheat; Mississippi
Abstract:
... Incorporating cover crops into row crop production systems can affect soil water dynamics and crop production. However, the effect of this practice has not been well investigated in the northeast Mississippi USA. We calibrated and validated the cropping system model (Root Zone Water Quality Model, RZWQM2) using 4-yr (2014–2017) field data in the humid Mississippi Blackland Prairie, and also used t ...
JohnieN. Jenkins, et al. ; Mirzakamol S. Ayubov; Tokhir M. Norov; Sukumar Saha; Te-Ming Tseng; K. Raja Reddy; Ibrokhim Y. Abdurakhmonov; David M. Stelly; Show all 8 Authors
... Genetic approaches often lead to the most cost-effective and efficient means to improve crops, especially those grown widely. But for most crops, cotton included, genetic improvement efforts have focused far more on above-ground plant attributes than on root systems. Root system establishment is crucial to cotton seedling success, subsequent development, crop performance and sustainability. As a f ...
JohnieN. Jenkins, et al. ; Michael T. Plumblee; Darrin M. Dodds; L. Jason Krutz; Tyson B. Raper; Andrea S. Jones; Angus L. Catchot Jr.; J. Trenton Irby; Show all 8 Authors
... Determining the effects of timing and intensity of physical damage in cotton (Gossypium hirsutum L.) grown in the Mid‐South could improve management decisions and insurance adjustments after weather‐ or wildlife‐related crop damage has occurred. Research was conducted to quantify the effects of time of damage and intensity of damage on early‐ and late‐maturing cotton varieties in the Mid‐South. Cu ...
... CORE IDEAS: Applying poultry litter to the top of cover crop residue increased lint yield in drier years.This practice enhanced cotton lint yield, soil C, and soil health.This practice reduced NO₃–N and water‐soluble P by 49 and 22% in 5‐cm soil depth, a zone of plant–soil–water interactions. The influence of poultry litter (PL) and cover crops have under no‐till cropping systems in Mississippi up ...
... CORE IDEAS: The impact of harvest management on forage nutritive value is vital to farm income.Results validate management practices commonly used but heretofore without statistical basis.Bermudagrass P removal maximized with prolonged harvest interval and short stubble height.Forage nutritive value was similar between stubble heights when harvested every 35 d. Haying bermudagrass [Cynodon dactylo ...
... The use of genomic selection (GS) has stimulated a new way to utilize molecular markers in breeding for complex traits in the absence of phenotypic data. GS can potentially decrease breeding cycle by selecting the progeny in the early stages. The objective of this study was to experimentally evaluate the potential value of genomic selection in Upland cotton breeding. Six fiber quality traits were ...