Resistance of Chitti bean genotypes of promising to two-spotted spider mite Tetranychus urticae Koch in greenhouse conditions
Tetranychus urticae Koch (Acari: Tetranychidae), The two-spotted spider mite (TSSM), is one of the most significant pests infesting beans and a large amount of insecticides are used annually against it. The present research was conducted to identify resistance levels of chitti bean genotypes to ward...
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Entomological Society of Iran
2025-01-01
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| Series: | نامه انجمن حشرهشناسی ایران |
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| Online Access: | https://jesi.areeo.ac.ir/article_132214_15e6eaf13ab26c1b4d46130533d7461c.pdf |
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| author | Sedigheh Ashtari Behrouz Asadi Hamid Reza Dorri |
| author_facet | Sedigheh Ashtari Behrouz Asadi Hamid Reza Dorri |
| author_sort | Sedigheh Ashtari |
| collection | DOAJ |
| description | Tetranychus urticae Koch (Acari: Tetranychidae), The two-spotted spider mite (TSSM), is one of the most significant pests infesting beans and a large amount of insecticides are used annually against it. The present research was conducted to identify resistance levels of chitti bean genotypes to ward T. urticae. For the experiments, Type 1 bean genotypes (standing) (KS-21216, KS-21181, KS-21538, KS-21565, KS-21563, KS-21602, KS-21500, KS-21601, KS-21600, and KS-21607), Type 2 genotypes (half standing) (KS-21573, KS-21597, and KS-21606), and Type 3 genotypes (prostrate) (KS-21255 and KS-21574), along with the susceptible variety (Sadri), were cultivated in the field at the Khomein National Bean Research Station in a randomized complete block design with three replications during two successive years (2022 and 2023). To examine the population (egg, nymph, larval and adult stages), ten plants were randomly selected from each plot, and from each plant, two heaves from the top, two from the middle, and two from the bottom of the canopy, were selected. The sampling program was conducted weekly from the third leaf stage until the end of the season. The resistance mechanism (not from the biochemical aspects) was determined (tolerance, antixenosis and antibiosis) under greenhouse conditions on the same varieties. The results of population changes revealed the highest number of eggs, nymphs, larvae, and adults of T. urticae were observed in the Sadri variety and genotype KS-21607. In contrast, the lowest was ascertained in genotypes KS-21216, and KS-21184. According to greenhouse results Sadri variety and genotype KS-21607 were classified as susceptible to TSSM with damage scales of 5.90±0.10 and 4.80±0.12 respectively. Genotypes KS-21538, KS-21216, KS-21184, and KS-21255 exhibited desirable antibiosis-type resistance mechanisms. But, the Sadri variety and genotypes KS-21607, KS-21573 and KS-21597, supported a high reproductive and growth fitness of T. urticae. |
| format | Article |
| id | doaj-art-74212f67aa634571831826ea6d1901ea |
| institution | Kabale University |
| issn | 0259-9996 2783-3968 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Entomological Society of Iran |
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| series | نامه انجمن حشرهشناسی ایران |
| spelling | doaj-art-74212f67aa634571831826ea6d1901ea2025-02-02T21:42:00ZengEntomological Society of Iranنامه انجمن حشرهشناسی ایران0259-99962783-39682025-01-01451637410.61186/jesi.45.1.5132214Resistance of Chitti bean genotypes of promising to two-spotted spider mite Tetranychus urticae Koch in greenhouse conditionsSedigheh Ashtari0Behrouz Asadi1Hamid Reza Dorri2Plant Protection Research Department, Markazi Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization, AREEO, Arak, IranCrop and Horticultural Science Research Department, Markazi Agricultural and Natural Resources Research and Education Center Research and Education Center (AREEO), Arak, IranCrop and Horticultural Science Research Department, Markazi Agricultural and Natural Resources Research and Education Center Research and Education Center (AREEO), Arak, IranTetranychus urticae Koch (Acari: Tetranychidae), The two-spotted spider mite (TSSM), is one of the most significant pests infesting beans and a large amount of insecticides are used annually against it. The present research was conducted to identify resistance levels of chitti bean genotypes to ward T. urticae. For the experiments, Type 1 bean genotypes (standing) (KS-21216, KS-21181, KS-21538, KS-21565, KS-21563, KS-21602, KS-21500, KS-21601, KS-21600, and KS-21607), Type 2 genotypes (half standing) (KS-21573, KS-21597, and KS-21606), and Type 3 genotypes (prostrate) (KS-21255 and KS-21574), along with the susceptible variety (Sadri), were cultivated in the field at the Khomein National Bean Research Station in a randomized complete block design with three replications during two successive years (2022 and 2023). To examine the population (egg, nymph, larval and adult stages), ten plants were randomly selected from each plot, and from each plant, two heaves from the top, two from the middle, and two from the bottom of the canopy, were selected. The sampling program was conducted weekly from the third leaf stage until the end of the season. The resistance mechanism (not from the biochemical aspects) was determined (tolerance, antixenosis and antibiosis) under greenhouse conditions on the same varieties. The results of population changes revealed the highest number of eggs, nymphs, larvae, and adults of T. urticae were observed in the Sadri variety and genotype KS-21607. In contrast, the lowest was ascertained in genotypes KS-21216, and KS-21184. According to greenhouse results Sadri variety and genotype KS-21607 were classified as susceptible to TSSM with damage scales of 5.90±0.10 and 4.80±0.12 respectively. Genotypes KS-21538, KS-21216, KS-21184, and KS-21255 exhibited desirable antibiosis-type resistance mechanisms. But, the Sadri variety and genotypes KS-21607, KS-21573 and KS-21597, supported a high reproductive and growth fitness of T. urticae.https://jesi.areeo.ac.ir/article_132214_15e6eaf13ab26c1b4d46130533d7461c.pdftetranychus urticaepopulation changesplant resistance indexresistance mechanisms (toleranceantixenosis and antibiosis) |
| spellingShingle | Sedigheh Ashtari Behrouz Asadi Hamid Reza Dorri Resistance of Chitti bean genotypes of promising to two-spotted spider mite Tetranychus urticae Koch in greenhouse conditions نامه انجمن حشرهشناسی ایران tetranychus urticae population changes plant resistance index resistance mechanisms (tolerance antixenosis and antibiosis) |
| title | Resistance of Chitti bean genotypes of promising to two-spotted spider mite Tetranychus urticae Koch in greenhouse conditions |
| title_full | Resistance of Chitti bean genotypes of promising to two-spotted spider mite Tetranychus urticae Koch in greenhouse conditions |
| title_fullStr | Resistance of Chitti bean genotypes of promising to two-spotted spider mite Tetranychus urticae Koch in greenhouse conditions |
| title_full_unstemmed | Resistance of Chitti bean genotypes of promising to two-spotted spider mite Tetranychus urticae Koch in greenhouse conditions |
| title_short | Resistance of Chitti bean genotypes of promising to two-spotted spider mite Tetranychus urticae Koch in greenhouse conditions |
| title_sort | resistance of chitti bean genotypes of promising to two spotted spider mite tetranychus urticae koch in greenhouse conditions |
| topic | tetranychus urticae population changes plant resistance index resistance mechanisms (tolerance antixenosis and antibiosis) |
| url | https://jesi.areeo.ac.ir/article_132214_15e6eaf13ab26c1b4d46130533d7461c.pdf |
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