Effect of Row Spacing and Seeding Rate on Russian Thistle (<i>Salsola tragus</i>) in Spring Barley and Spring Wheat
Russian thistle (<i>Salsola tragus</i> L.) is a persistent post-harvest issue in the Pacific Northwest (PNW). Farmers need more integrated management strategies to control it. Russian thistle emergence, mortality, plant biomass, seed production, and crop yield were evaluated in spring wh...
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MDPI AG
2021-01-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/10/1/126 |
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| author | Judit Barroso Nicholas G. Genna |
| author_facet | Judit Barroso Nicholas G. Genna |
| author_sort | Judit Barroso |
| collection | DOAJ |
| description | Russian thistle (<i>Salsola tragus</i> L.) is a persistent post-harvest issue in the Pacific Northwest (PNW). Farmers need more integrated management strategies to control it. Russian thistle emergence, mortality, plant biomass, seed production, and crop yield were evaluated in spring wheat and spring barley planted in 18- or 36-cm row spacing and seeded at 73 or 140 kg ha<sup>−1</sup> in Pendleton and Moro, Oregon, during 2018 and 2019. Russian thistle emergence was lower and mortality was higher in spring barley than in spring wheat. However, little to no effect of row spacing or seeding rate was observed on Russian thistle emergence or mortality. Russian thistle seed production and plant biomass followed crop productivity; higher crop yield produced higher Russian thistle biomass and seed production and lower crop yield produced lower weed biomass and seed production. Crop yield with Russian thistle pressure was improved in 2018 with 18-cm rows or by seeding at 140 kg ha<sup>−1</sup> while no effect was observed in 2019. Increasing seeding rates or planting spring crops in narrow rows may be effective at increasing yield in low rainfall years of the PNW, such as in 2018. No effect may be observed in years with higher rainfall than normal, such as in 2019. |
| first_indexed | 2024-03-09T05:25:26Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-09T05:25:26Z |
| publishDate | 2021-01-01 |
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| spelling | doaj.art-884f0d604820424a91652e7c11b37f502023-12-03T12:37:32ZengMDPI AGPlants2223-77472021-01-0110112610.3390/plants10010126Effect of Row Spacing and Seeding Rate on Russian Thistle (<i>Salsola tragus</i>) in Spring Barley and Spring WheatJudit Barroso0Nicholas G. Genna1Columbia Basin Agricultural Research Center, Oregon State University, Adams, OR 97810, USAColumbia Basin Agricultural Research Center, Oregon State University, Adams, OR 97810, USARussian thistle (<i>Salsola tragus</i> L.) is a persistent post-harvest issue in the Pacific Northwest (PNW). Farmers need more integrated management strategies to control it. Russian thistle emergence, mortality, plant biomass, seed production, and crop yield were evaluated in spring wheat and spring barley planted in 18- or 36-cm row spacing and seeded at 73 or 140 kg ha<sup>−1</sup> in Pendleton and Moro, Oregon, during 2018 and 2019. Russian thistle emergence was lower and mortality was higher in spring barley than in spring wheat. However, little to no effect of row spacing or seeding rate was observed on Russian thistle emergence or mortality. Russian thistle seed production and plant biomass followed crop productivity; higher crop yield produced higher Russian thistle biomass and seed production and lower crop yield produced lower weed biomass and seed production. Crop yield with Russian thistle pressure was improved in 2018 with 18-cm rows or by seeding at 140 kg ha<sup>−1</sup> while no effect was observed in 2019. Increasing seeding rates or planting spring crops in narrow rows may be effective at increasing yield in low rainfall years of the PNW, such as in 2018. No effect may be observed in years with higher rainfall than normal, such as in 2019.https://www.mdpi.com/2223-7747/10/1/126crop competitioncultural managementrainfallrain-fed agricultureseed productionweed suppression |
| spellingShingle | Judit Barroso Nicholas G. Genna Effect of Row Spacing and Seeding Rate on Russian Thistle (<i>Salsola tragus</i>) in Spring Barley and Spring Wheat Plants crop competition cultural management rainfall rain-fed agriculture seed production weed suppression |
| title | Effect of Row Spacing and Seeding Rate on Russian Thistle (<i>Salsola tragus</i>) in Spring Barley and Spring Wheat |
| title_full | Effect of Row Spacing and Seeding Rate on Russian Thistle (<i>Salsola tragus</i>) in Spring Barley and Spring Wheat |
| title_fullStr | Effect of Row Spacing and Seeding Rate on Russian Thistle (<i>Salsola tragus</i>) in Spring Barley and Spring Wheat |
| title_full_unstemmed | Effect of Row Spacing and Seeding Rate on Russian Thistle (<i>Salsola tragus</i>) in Spring Barley and Spring Wheat |
| title_short | Effect of Row Spacing and Seeding Rate on Russian Thistle (<i>Salsola tragus</i>) in Spring Barley and Spring Wheat |
| title_sort | effect of row spacing and seeding rate on russian thistle i salsola tragus i in spring barley and spring wheat |
| topic | crop competition cultural management rainfall rain-fed agriculture seed production weed suppression |
| url | https://www.mdpi.com/2223-7747/10/1/126 |
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