Cereal and Pulse Crops with Improved Resistance to <i>Pratylenchus thornei</i> Are Needed to Maximize Wheat Production and Expand Crop Sequence Options
In the subtropical grain region of eastern Australia, two experiments were conducted, one initially with 2490 <i>P. thornei</i>/kg soil, the other with 8150 <i>P. thornei</i>/kg soil at 0–0.9 m soil depth. We determined the effect of <i>P. thornei</i>, residual fr...
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MDPI AG
2022-02-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/12/3/573 |
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| author | Kirsty J. Owen Timothy G. Clewett Kerry L. Bell John P. Thompson |
| author_facet | Kirsty J. Owen Timothy G. Clewett Kerry L. Bell John P. Thompson |
| author_sort | Kirsty J. Owen |
| collection | DOAJ |
| description | In the subtropical grain region of eastern Australia, two experiments were conducted, one initially with 2490 <i>P. thornei</i>/kg soil, the other with 8150 <i>P. thornei</i>/kg soil at 0–0.9 m soil depth. We determined the effect of <i>P. thornei</i>, residual from a weed-free fallow and pre-cropping with several cultivars each of barley (<i>Hordeum vulgare</i>), faba bean (<i>Vicia faba</i>), chickpea (<i>Cicer arietinum</i>), and wheat (<i>Triticum aestivum</i>) (Phase 1), on the growth of wheat cultivars with intolerance or tolerance to <i>P. thornei</i> (Phase 2). <i>Pratylenchus thornei</i> substantially increased after growing all cultivars of the Phase 1 faba bean, barley, and most cultivars of chickpea and wheat, and decreased after two moderately resistant wheat cultivars and the fallow treatment. The biomass of the Phase 2 tolerant cultivar ranged from 5070 to 6780 kg/ha and the intolerant cultivar 1020 to 4740 kg/ha. There was a negative linear relationship between <i>P. thornei</i> population densities and biomass of the Phase 2 intolerant cultivar but not of the tolerant cultivar. Growers are at risk of financial loss because they are restricted in their choice of crops to reduce damaging population densities of <i>P. thornei</i>. The development of resistant and tolerant crop genotypes can maximize production in <i>P. thornei</i>-affected farming systems. |
| first_indexed | 2024-03-09T20:13:56Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-09T20:13:56Z |
| publishDate | 2022-02-01 |
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| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-cd3426ec8a2e459982e13dd1ae2523a82023-11-24T00:07:08ZengMDPI AGAgronomy2073-43952022-02-0112357310.3390/agronomy12030573Cereal and Pulse Crops with Improved Resistance to <i>Pratylenchus thornei</i> Are Needed to Maximize Wheat Production and Expand Crop Sequence OptionsKirsty J. Owen0Timothy G. Clewett1Kerry L. Bell2John P. Thompson3Centre for Crop Health, Institute for Agriculture and the Environment, University of Southern Queensland, Toowoomba, QLD 4350, AustraliaCentre for Crop Health, Institute for Agriculture and the Environment, University of Southern Queensland, Toowoomba, QLD 4350, AustraliaLeslie Research Facility, Department of Agriculture and Fisheries Queensland, Toowoomba, QLD 4350, AustraliaCentre for Crop Health, Institute for Agriculture and the Environment, University of Southern Queensland, Toowoomba, QLD 4350, AustraliaIn the subtropical grain region of eastern Australia, two experiments were conducted, one initially with 2490 <i>P. thornei</i>/kg soil, the other with 8150 <i>P. thornei</i>/kg soil at 0–0.9 m soil depth. We determined the effect of <i>P. thornei</i>, residual from a weed-free fallow and pre-cropping with several cultivars each of barley (<i>Hordeum vulgare</i>), faba bean (<i>Vicia faba</i>), chickpea (<i>Cicer arietinum</i>), and wheat (<i>Triticum aestivum</i>) (Phase 1), on the growth of wheat cultivars with intolerance or tolerance to <i>P. thornei</i> (Phase 2). <i>Pratylenchus thornei</i> substantially increased after growing all cultivars of the Phase 1 faba bean, barley, and most cultivars of chickpea and wheat, and decreased after two moderately resistant wheat cultivars and the fallow treatment. The biomass of the Phase 2 tolerant cultivar ranged from 5070 to 6780 kg/ha and the intolerant cultivar 1020 to 4740 kg/ha. There was a negative linear relationship between <i>P. thornei</i> population densities and biomass of the Phase 2 intolerant cultivar but not of the tolerant cultivar. Growers are at risk of financial loss because they are restricted in their choice of crops to reduce damaging population densities of <i>P. thornei</i>. The development of resistant and tolerant crop genotypes can maximize production in <i>P. thornei</i>-affected farming systems.https://www.mdpi.com/2073-4395/12/3/573<i>Triticum aestivum</i>chickpeabarleyfaba beanweed-free fallowroot-lesion nematode |
| spellingShingle | Kirsty J. Owen Timothy G. Clewett Kerry L. Bell John P. Thompson Cereal and Pulse Crops with Improved Resistance to <i>Pratylenchus thornei</i> Are Needed to Maximize Wheat Production and Expand Crop Sequence Options Agronomy <i>Triticum aestivum</i> chickpea barley faba bean weed-free fallow root-lesion nematode |
| title | Cereal and Pulse Crops with Improved Resistance to <i>Pratylenchus thornei</i> Are Needed to Maximize Wheat Production and Expand Crop Sequence Options |
| title_full | Cereal and Pulse Crops with Improved Resistance to <i>Pratylenchus thornei</i> Are Needed to Maximize Wheat Production and Expand Crop Sequence Options |
| title_fullStr | Cereal and Pulse Crops with Improved Resistance to <i>Pratylenchus thornei</i> Are Needed to Maximize Wheat Production and Expand Crop Sequence Options |
| title_full_unstemmed | Cereal and Pulse Crops with Improved Resistance to <i>Pratylenchus thornei</i> Are Needed to Maximize Wheat Production and Expand Crop Sequence Options |
| title_short | Cereal and Pulse Crops with Improved Resistance to <i>Pratylenchus thornei</i> Are Needed to Maximize Wheat Production and Expand Crop Sequence Options |
| title_sort | cereal and pulse crops with improved resistance to i pratylenchus thornei i are needed to maximize wheat production and expand crop sequence options |
| topic | <i>Triticum aestivum</i> chickpea barley faba bean weed-free fallow root-lesion nematode |
| url | https://www.mdpi.com/2073-4395/12/3/573 |
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