Canadian Journal of Plant Science最新文献

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Assessing the influence of climate controls on grapevine biophysical responses: a review of Ontario viticulture in a changing climate 评估气候控制对葡萄藤生物物理反应的影响:安大略省葡萄栽培在不断变化的气候中的回顾
Canadian Journal of Plant Science Pub Date : 2024-04-12 DOI: 10.1139/cjps-2023-0161
Jessica A. Williamson, Rich Petrone, Riccardo Valentini, M. Macrae, Andrew Reynolds
{"title":"Assessing the influence of climate controls on grapevine biophysical responses: a review of Ontario viticulture in a changing climate","authors":"Jessica A. Williamson, Rich Petrone, Riccardo Valentini, M. Macrae, Andrew Reynolds","doi":"10.1139/cjps-2023-0161","DOIUrl":"https://doi.org/10.1139/cjps-2023-0161","url":null,"abstract":"Climate change presents unique challenges for grape growers across the world. In Ontario, three distinct viticultural regions are experiencing climatic shifts towards warmer growing seasons. According to historical records collected from Environment and Climate Change Canada, Lake Erie North Shore has transitioned from an intermediate to warm growing season classification, the Niagara Peninsula from the lower to upper limits of the intermediate zone, and Prince Edward County from cool to intermediate, when analyzing their average growing season temperatures. Terroir is directly related to vine water status, an indicator of grapevine stress. Biophysical responses controlled by air temperature and precipitation include fluctuations in vapour pressure deficits, evapotranspiration, and water-use-efficiency rates, as well as soil water content levels. By conducting an extensive literature review, the development of a conceptual addresses how variations in climatic controls, under the scope of climate change, may influence grapevine water status, biophysical responses, and associated production outcomes for Ontario vineyards. Cool to intermediate air temperatures, when paired with increased precipitation will lead to no or low vine stress, increasing photosynthesis and transpiration rates, and variable plant water-use-efficiency levels, producing higher yields and lower quality grapes, if no management strategies are applied. Oppositely, higher air temperature as a product of climate change, when paired with variable precipitation may produce mild to severe stress, reducing yield, and increasing grape quality. With the appropriate management strategies, both traditional and new, growers may be able to accommodate for the influence of climate change on their vineyards.","PeriodicalId":502175,"journal":{"name":"Canadian Journal of Plant Science","volume":"74 S1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140709188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cropping system typologies perform differently under climate stress in Manitoba, Canada: Multi-criteria assessment. 加拿大马尼托巴省种植系统类型在气候压力下的不同表现:多重标准评估。
Canadian Journal of Plant Science Pub Date : 2024-04-12 DOI: 10.1139/cjps-2023-0177
Samantha K Curtis, M. Entz, Katherine Stanley, D. Cattani, Kimberley D. Schneider
{"title":"Cropping system typologies perform differently under climate stress in Manitoba, Canada: Multi-criteria assessment.","authors":"Samantha K Curtis, M. Entz, Katherine Stanley, D. Cattani, Kimberley D. Schneider","doi":"10.1139/cjps-2023-0177","DOIUrl":"https://doi.org/10.1139/cjps-2023-0177","url":null,"abstract":"Information is required to understand how novel biodiversity strategies can improve cropping system resilience to climate change. A “business as usual” (BAU) rotation (wheat-canola-wheat-soybean) was compared with a “warm-season crop” (WS) rotation (corn-sunflower-dry bean-canola); a “biodiverse” (BD) rotation (fall rye with cover crop- corn/soybean intercrop - pea/canola intercrop- green fallow mixture); a “perennial grain” (Kernza) rotation (Kernza grain intermediate wheatgrass); and an organic (ORG) rotation (millet-green fallow mixture-wheat). Drought conditions prevailed in both study years. The BAU rotation had the lowest average yield (1821 kg ha-1 compared with 2533 and 3083 kg ha-1 for the BD and WS rotations, respectively), less post-harvest residual biomass and a lower net return than the WS rotation. The WS rotation was limited by herbicide resistant weeds in dry beans. Kernza seed yield was five times lower than for spring wheat. ORG wheat yielded the same as other wheat and had a higher net return. Live roots days, a measure of soil health potential, were 95 for the BAU rotation, and 174 and 113 for the BD and WS rotations, respectively; the most were recorded for Kernza (365). Seasonal crop growth duration was increased by including Kernza and fall rye for early season growth, and corn, sunflower, a corn-soybean intercrop, a cover crop and fall seeded rye for late season growth. WS and BD rotations outperformed the BAU rotation and the BD system accomplished this with half the N fertilizer. Results demonstrate the potential of biodiverse rotations; barriers to their adoption should be addressed.","PeriodicalId":502175,"journal":{"name":"Canadian Journal of Plant Science","volume":"86 S11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140709429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The effects of roller crimping direction for termination of fall sown cereal rye (Secale cereale L.) 滚筒压条方向对秋播黑麦(Secale cereale L.)终止的影响
Canadian Journal of Plant Science Pub Date : 2024-04-05 DOI: 10.1139/cjps-2023-0184
Hayley L. Brackenridge, François J. Tardif, K. Bosveld, Robert Nurse
{"title":"The effects of roller crimping direction for termination of fall sown cereal rye (Secale cereale L.)","authors":"Hayley L. Brackenridge, François J. Tardif, K. Bosveld, Robert Nurse","doi":"10.1139/cjps-2023-0184","DOIUrl":"https://doi.org/10.1139/cjps-2023-0184","url":null,"abstract":"Consensus around the optimal direction of roller crimping a row-planted cover crop has not been established. Several publications report crimping either parallel or perpendicular to the direction of cover crop planting with little to no justification apart from unpublished observations or hypotheses. This study explicitly compared the effects of roller crimping direction on crimping efficacy, weed suppression, and cash crop yield. At Elora, ON in 2020 and 2021, and Harrow, ON in 2021, a cereal rye (Secale cereale L.) cover crop was planted in three orientations (north-south vs. east-west vs. no rye control) then terminated with a roller crimper parallel or perpendicular to the direction of planting. A sweet corn (Zea mays L.) cash crop was planted either north-south or east-west in the same direction as roller crimping. A split plot treatment of weediness (weedy vs. weed-free) was applied. It was found that roller crimping direction did not have a consistent effect on rye mortality or number of upright tillers, nor did it affect weed control. However, total marketable sweet corn fresh weight decreased in perpendicular crimped rye compared to parallel crimping, despite equivalent cob counts. We did not find evidence in this study to suggest that perpendicular roller crimping improves ground cover and therefore weed suppression, contrary to other unpublished observations. Given the effect on sweet corn yield, roller crimping perpendicular to the direction of cover crop planting may not be a suitable practice. Alternative methods for improving cover crop-based weed control should be investigated.","PeriodicalId":502175,"journal":{"name":"Canadian Journal of Plant Science","volume":"40 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140735854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Effects of Pre-Harvest Glyphosate Rate and Timing on Yield and Pre-Malt Quality of Malting Barley 收获前草甘膦用量和时间对麦芽大麦产量和麦芽前质量的影响
Canadian Journal of Plant Science Pub Date : 2024-04-05 DOI: 10.1139/cjps-2023-0167
J. O’Donovan, Hiroshi Kubota, K. Harker, T. Turkington, W. May, Eric N. Johnson, B. Beres, Marta Izydorczyk, Lori Oatway, H. de Gooijer, Alick Mulenga, Timothy Schwinghamer, B. Tidemann
{"title":"The Effects of Pre-Harvest Glyphosate Rate and Timing on Yield and Pre-Malt Quality of Malting Barley","authors":"J. O’Donovan, Hiroshi Kubota, K. Harker, T. Turkington, W. May, Eric N. Johnson, B. Beres, Marta Izydorczyk, Lori Oatway, H. de Gooijer, Alick Mulenga, Timothy Schwinghamer, B. Tidemann","doi":"10.1139/cjps-2023-0167","DOIUrl":"https://doi.org/10.1139/cjps-2023-0167","url":null,"abstract":"The production of barley cultivars with malting and brewing quality characteristics is subject to strict grading and technical standards for the end-use market. Environmental and management factors can significantly alter grain quality, and the qualities required for malting. Crop and kernel uniformity are critical factors where variability can exceed the tolerance for meeting malt quality. A practice to address variations in crop maturity is the application of pre-harvest glyphosate. Pre-harvest glyphosate applications can, however, alter malting characteristics in barley, and, if mis-timed, can also reduce yield. A four-year study at five locations in Alberta and Saskatchewan from 2013 to 2017 was conducted to determine the effects of pre-harvest glyphosate applications on malting barley characteristics. Glyphosate was applied at 900 and 1125 g ae ha-1 on malting barley cultivars ‘CDC Meredith’ and ‘AC Metcalfe’ malting barley at soft dough, hard dough, and physiological maturity growth stages. Yield reductions of up to 12% were observed from glyphosate applications at soft dough, and yield was maximized with applications at physiological maturity. Glyphosate application, at two rates, reduced percent plump kernels, but did not affect kernel weight or protein concentration. The growth stage of barley plants did not provide an accurate indicator of seed moisture levels at the time of application, which motivated our conclusion that glyphosate applications can be mistimed by inaccurate indicators. The results motivate our questioning of the utility of pre-harvest glyphosate applications, given the adverse effects to barley yield and quality observed, even when applied according to the label instructions.","PeriodicalId":502175,"journal":{"name":"Canadian Journal of Plant Science","volume":"58 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140739479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spring wheat agronomic and quality responses to a genotype x environment x N source and management systems approach. 春小麦农艺学和质量对基因型 x 环境 x 氮源和管理系统方法的响应。
Canadian Journal of Plant Science Pub Date : 2024-04-05 DOI: 10.1139/cjps-2023-0142
Zhijie Wang, S. Strydhorst, Xiying Hao, Guillermo Hernandez-Ramirez, G. Semach, Christopher Holzapfel, Jessica Enns, Laurel Thompson, B. Beres
{"title":"Spring wheat agronomic and quality responses to a genotype x environment x N source and management systems approach.","authors":"Zhijie Wang, S. Strydhorst, Xiying Hao, Guillermo Hernandez-Ramirez, G. Semach, Christopher Holzapfel, Jessica Enns, Laurel Thompson, B. Beres","doi":"10.1139/cjps-2023-0142","DOIUrl":"https://doi.org/10.1139/cjps-2023-0142","url":null,"abstract":"Yield and quality improvements in Canada Western Red Spring (CWRS) wheat (Triticum aestivum L.) are increasingly difficult to attain, which behoves a systems approach to unlock genotype (G)×environment (E)×management (M) synergies. This 25 site-year study was designed to assess a G×E×M systems approach to improve CWRS agronomics, quality, and N use efficiency (NUE). The investigation consisted of genetics (AAC Viewfield vs. AC Stettler), N source [untreated urea; urea + urease inhibitor, N-(n-butyl) thiophosphoric triamide (NBPT); urea + nitrification inhibitor, Nitrapyrin; urea + dual-inhibitor (NBPT + dicyandiamide); and polymer-coated urea] and N timing/placement (all-banded at planting, two-split applications and three-split applications), deployed across diverse soil zones in western Canada. Differential yield responses were observed between cultivars as AAC Viewfield produced superior yield over AC Stettler (+4.3%) in black and grey soils, while yield attainment was similar in dark brown soils. Genetic improvement over AC Stettler seemed most apparent in water abundant environments; however, AC Stettler was often superior in drier conditions. All N sources produced comparable outcomes for yield, quality, NUE, and net returns. In black and grey soils, adopting either all-banded or two-splits improved grain yield due to augmented seedling vigor, heads per plant, and N recovery. The timing of split-applications introduces more risk to yield and is likely attributed to a poorly developed source:sink relationship in the critical growth period if applied late to optimize grain protein. This highlights the complexity of the system and balance needed to harness the potential synergy between G, E, and M components.","PeriodicalId":502175,"journal":{"name":"Canadian Journal of Plant Science","volume":"7 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140738236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Revisiting the origins of glyphosate resistant giant ragweed (Ambrosia trifida L.) in Canada 重新审视加拿大抗草甘膦大豚草(Ambrosia trifida L.)的起源
Canadian Journal of Plant Science Pub Date : 2024-02-09 DOI: 10.1139/cjps-2023-0145
E. Page, Sara Lauretta Martin, Sydney Meloche, Alyssa Thibodeau, R. Nurse, P. Sikkema, F. Tardif, Mike Cowbrough, Martin Laforest
{"title":"Revisiting the origins of glyphosate resistant giant ragweed (Ambrosia trifida L.) in Canada","authors":"E. Page, Sara Lauretta Martin, Sydney Meloche, Alyssa Thibodeau, R. Nurse, P. Sikkema, F. Tardif, Mike Cowbrough, Martin Laforest","doi":"10.1139/cjps-2023-0145","DOIUrl":"https://doi.org/10.1139/cjps-2023-0145","url":null,"abstract":"Glyphosate-resistant giant ragweed (Ambrosia trifida L.) was first identified in Canada in 2008. Although early studies attributed resistance in this species solely to non-target site mechanisms, the presence of a proline (P) to serine (S) mutation at position 106 of EPSPS2 in common and giant ragweed has recently been reported. The objective of this research was i) to determine if a P106S mutation is present in historical samples of giant ragweed seed collected from the site of the first report of glyphosate resistance, and ii) to determine the frequency and distribution of P106S in resistant and susceptible biotypes collected as part of historical surveys throughout southwestern Ontario.","PeriodicalId":502175,"journal":{"name":"Canadian Journal of Plant Science","volume":"182 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139848881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Revisiting the origins of glyphosate resistant giant ragweed (Ambrosia trifida L.) in Canada 重新审视加拿大抗草甘膦大豚草(Ambrosia trifida L.)的起源
Canadian Journal of Plant Science Pub Date : 2024-02-09 DOI: 10.1139/cjps-2023-0145
E. Page, Sara Lauretta Martin, Sydney Meloche, Alyssa Thibodeau, R. Nurse, P. Sikkema, F. Tardif, Mike Cowbrough, Martin Laforest
{"title":"Revisiting the origins of glyphosate resistant giant ragweed (Ambrosia trifida L.) in Canada","authors":"E. Page, Sara Lauretta Martin, Sydney Meloche, Alyssa Thibodeau, R. Nurse, P. Sikkema, F. Tardif, Mike Cowbrough, Martin Laforest","doi":"10.1139/cjps-2023-0145","DOIUrl":"https://doi.org/10.1139/cjps-2023-0145","url":null,"abstract":"Glyphosate-resistant giant ragweed (Ambrosia trifida L.) was first identified in Canada in 2008. Although early studies attributed resistance in this species solely to non-target site mechanisms, the presence of a proline (P) to serine (S) mutation at position 106 of EPSPS2 in common and giant ragweed has recently been reported. The objective of this research was i) to determine if a P106S mutation is present in historical samples of giant ragweed seed collected from the site of the first report of glyphosate resistance, and ii) to determine the frequency and distribution of P106S in resistant and susceptible biotypes collected as part of historical surveys throughout southwestern Ontario.","PeriodicalId":502175,"journal":{"name":"Canadian Journal of Plant Science","volume":" 90","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139789198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Copy Number Variation at Vrn-A1 and Haplotype Diversity at Fr-A2 are Major Determinants of Winter Survival of Winter Wheat (Triticum aestivum L.) in Eastern Canada Vrn-A1 的拷贝数变异和 Fr-A2 的单倍型多样性是加拿大东部冬小麦(Triticum aestivum L.)冬季存活率的主要决定因素
Canadian Journal of Plant Science Pub Date : 2024-02-02 DOI: 10.1139/cjps-2023-0101
Yi Chen, M. Kaviani, Mohsen Yoosefzadeh Najafabadi, Michel McElroy, I. Rajcan, Alireza Navabi
{"title":"Copy Number Variation at Vrn-A1 and Haplotype Diversity at Fr-A2 are Major Determinants of Winter Survival of Winter Wheat (Triticum aestivum L.) in Eastern Canada","authors":"Yi Chen, M. Kaviani, Mohsen Yoosefzadeh Najafabadi, Michel McElroy, I. Rajcan, Alireza Navabi","doi":"10.1139/cjps-2023-0101","DOIUrl":"https://doi.org/10.1139/cjps-2023-0101","url":null,"abstract":"Winter survival is an essential trait for winter wheat (Triticum aestivum L.) cultivars grown in high latitude regions such as Eastern Canada. Indoor studies have identified that copy number variation of genes influencing freezing is an essential component. Although Canadian winter wheat is predominantly grown in Eastern Canada, the extent to which allele variation in freezing tolerance genes affects winter survival in this region remains unknown, as there are presently no studies characterizing such variation in Canadian winter wheat germplasm. In this study, we characterized a panel 415 Canadian winter wheat cultivars for haplotype diversity of the Frost Resistance-2 (Fr-A2) locus and copy number variation of Vernalization-A1 (Vrn-A1) and C-repeat binding factors-A14 (CBF-A14). Additionally, this study evaluates each gene’s effect on winter survival across two locations and two years. We found that a combination of Vrn-A1 copy number and Fr-A2 haplotype accounted for 67.38% of the genotypic variance. Most of the cultivars tested (77.3%) carry the allele combination of three copies of Vrn-A1 and the Fr-A2-T haplotype, which was associated with the best winter survival. Interestingly, copy number of Vrn-A1 did not significantly affect heading time, therefore, selecting for higher copy number of Vrn-A1 would not affect maturity.","PeriodicalId":502175,"journal":{"name":"Canadian Journal of Plant Science","volume":"26 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139809201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Copy Number Variation at Vrn-A1 and Haplotype Diversity at Fr-A2 are Major Determinants of Winter Survival of Winter Wheat (Triticum aestivum L.) in Eastern Canada Vrn-A1 的拷贝数变异和 Fr-A2 的单倍型多样性是加拿大东部冬小麦(Triticum aestivum L.)冬季存活率的主要决定因素
Canadian Journal of Plant Science Pub Date : 2024-02-02 DOI: 10.1139/cjps-2023-0101
Yi Chen, M. Kaviani, Mohsen Yoosefzadeh Najafabadi, Michel McElroy, I. Rajcan, Alireza Navabi
{"title":"Copy Number Variation at Vrn-A1 and Haplotype Diversity at Fr-A2 are Major Determinants of Winter Survival of Winter Wheat (Triticum aestivum L.) in Eastern Canada","authors":"Yi Chen, M. Kaviani, Mohsen Yoosefzadeh Najafabadi, Michel McElroy, I. Rajcan, Alireza Navabi","doi":"10.1139/cjps-2023-0101","DOIUrl":"https://doi.org/10.1139/cjps-2023-0101","url":null,"abstract":"Winter survival is an essential trait for winter wheat (Triticum aestivum L.) cultivars grown in high latitude regions such as Eastern Canada. Indoor studies have identified that copy number variation of genes influencing freezing is an essential component. Although Canadian winter wheat is predominantly grown in Eastern Canada, the extent to which allele variation in freezing tolerance genes affects winter survival in this region remains unknown, as there are presently no studies characterizing such variation in Canadian winter wheat germplasm. In this study, we characterized a panel 415 Canadian winter wheat cultivars for haplotype diversity of the Frost Resistance-2 (Fr-A2) locus and copy number variation of Vernalization-A1 (Vrn-A1) and C-repeat binding factors-A14 (CBF-A14). Additionally, this study evaluates each gene’s effect on winter survival across two locations and two years. We found that a combination of Vrn-A1 copy number and Fr-A2 haplotype accounted for 67.38% of the genotypic variance. Most of the cultivars tested (77.3%) carry the allele combination of three copies of Vrn-A1 and the Fr-A2-T haplotype, which was associated with the best winter survival. Interestingly, copy number of Vrn-A1 did not significantly affect heading time, therefore, selecting for higher copy number of Vrn-A1 would not affect maturity.","PeriodicalId":502175,"journal":{"name":"Canadian Journal of Plant Science","volume":"41 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139869159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Improved Methods to Estimate Days and Temperature to Fifty Percent Mortality of Winter Wheat (Triticum aestivum L.) Under Low-Temperature Flooding and Ice Encasement 低温淹没和冰封条件下冬小麦(Triticum aestivum L.)死亡率达到 50%的天数和温度的改进估算方法
Canadian Journal of Plant Science Pub Date : 2024-02-01 DOI: 10.1139/cjps-2023-0143
J. Husiny, Alexandra Ficht, Rachel Whiting, Helen M. Booker, David C. Hooker, Michel McElroy, Eric M. Lyons
{"title":"Improved Methods to Estimate Days and Temperature to Fifty Percent Mortality of Winter Wheat (Triticum aestivum L.) Under Low-Temperature Flooding and Ice Encasement","authors":"J. Husiny, Alexandra Ficht, Rachel Whiting, Helen M. Booker, David C. Hooker, Michel McElroy, Eric M. Lyons","doi":"10.1139/cjps-2023-0143","DOIUrl":"https://doi.org/10.1139/cjps-2023-0143","url":null,"abstract":"Low-temperature flooding and ice encasement (LTFIE) cause variable survival of winter wheat (Triticum aestivum L.) in Ontario, which limits the adoption of wheat into crop rotations by growers. The development of novel cultivars capable of withstanding LTFIE is a promising avenue for improvement, but the methods used to assess the survival of winter wheat under LTFIE are restricted. This study developed updated methods to determine the survival of wheat cultivars under LTFIE using controlled environments and, to our knowledge, is the first method since the 1980s to use Canada eastern soft red winter wheat (CESRW) to conduct cold tolerance studies. Chamber-acclimated plants of AC Carberry (spring wheat control), Branson (CESRW), CM614 (CESRW), and Norstar (hardy Canada western red winter control) cultivars were used to estimate the days (LD50) and temperature (LT50) to reach 50% mortality under ice and without ice treatments. Norstar had the longest LD50 at 33 days, Branson and CM614 had similar LD50 of 18 and 20 days, and AC Carberry did not reach an LD50 as it died early in both treatments. The LT50 of each cultivar was different; Norstar had the lowest LT50 (-13.6oC day 0 and -13.2oC day 7), and AC Carberry had the highest LT50 (-6.6oC day 0 and -2.7oC day 7). The detailed methods developed in this study were more reliable compared to older methods based on the more accurate reported LD50 and LT50 of the cultivars, therefore, these methods can be used to screen winter cereals for LTFIE in the future.","PeriodicalId":502175,"journal":{"name":"Canadian Journal of Plant Science","volume":"10 22","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139684301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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