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ARS Home » Plains Area » El Reno, Oklahoma » Oklahoma and Central Plains Agricultural Research Center » Livestock, Forage and Pasture Management Research Unit » Research » Publications at this Location » Publication #389529
Research Project: Integrated Agroecosystem Research to Enhance Forage and Food Production in the Southern Great Plains

Location: Livestock, Forage and Pasture Management Research Unit

Title: Resistance and genetic divergence of wild cotton genotypes under attack by sucking pests

Author
item OLIVEIRA, CARLOS - Sao Paulo State University (UNESP)
item ZOZ, TIAGO - State University Of Mato Grosso Do Sul
item JALAL, ARSHAD - Sao Paulo State University (UNESP)
item HOFFMANN, LUCIA - Brazilian Agricultural Research Corporation (EMBRAPA)
item LEITE, GABRIEL - Sao Paulo State University (UNESP)
item Witt, Travis
item NETO, SEBASTIAO - Sao Paulo State University (UNESP)

Submitted to: Euphytica
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 9/12/2024
Publication Date: 9/24/2024
Citation: Oliveira, C.E., Zoz, T., Jalal, A., Hoffmann, L., Leite, G.S., Witt, T.W., Neto, S.S. 2024. Resistance and genetic divergence of wild cotton genotypes under attack by sucking pests. Euphytica. 220.Article 157. https://doi.org/10.1007/s10681-024-03416-0.
DOI: https://doi.org/10.1007/s10681-024-03416-0

Interpretive Summary: Cotton aphid, silverleaf white fly, cotton stainer, and two-spotted spider mite are all major pests of cotton. In this study, 13 genotypes from 4 cotton species (Gossypium barbadense, G. hirsutum, G. thuberi, G. trilobum) were evaluated for their tolerance to these insect pests. G. hirsutum, the most commonly grown cotton, had the lowest resistance to insect pests. However, the tolerance of sucking insects by the other species may be transferrable to G. hirsutum. Further breeding efforts are needed to confirm this conclusion.

Technical Abstract: Sucking pests in recent years have become a concern for cotton cultivation worldwide. In this sense, the study aimed to identify cotton genotypes tolerant to sucking insect attacks. The experiment was conducted in Cassilandia in the 2016/2017 harvest, using thirteen cotton genotypes. During the crop season, weekly samples of cotton aphid, Silverleaf whitefly, and cotton stainer were obtained. The data obtained were subjected to the analysis of variance and Scott Knott clustering algorithm at the level of 5% probability. Cotton genotypes BRA 042455, GO 04-02, PAYMASTER 53M23, BRA 042480, APGO 01, APGO 02, and GO 0403 had the lowest populations of adults and nymphs of silverleaf whitefly in the period. The genotypes PAYMASTER 53M23, TX 25, TEX 1116, TEX 1964, GO 0403, IAC 19, COKER 417, and EMPIRE GLANDELESS were the most preferred for feeding by the cotton aphid. The cotton genotype IAC 19 was the least preferred for feeding by cotton stainer; conversely, PAYMASTER 53M23, APGO-01, and TX 25 were the most preferred for feeding by these insects. BRA 042455, GO 04-02, PAYMASTER 53M23, BRA 042480, APGO 01, and APGO 02 were less harmed by the attack of Silverleaf whitefly adults and nymphs; however, APGO-01, APGO-02, and GO 04-02 were the least preferred for feeding by cotton aphids, and IAC 19 was the least preferred for feeding by cotton stainer. The cotton aphids and Silverleaf whitefly adults and/or nymphs have a high negative correlation with cotton yield, making the pests more harmful to the harvest.