Canadian Journal of Plant Science最新文献_第6页

Long-term annual climate trends around the Breton Plots area, Alberta: is there any evidence of local climate change? 艾伯塔省布雷顿地块地区的长期年度气候趋势：有任何证据表明当地气候变化吗？

IF 1.2 4区农林科学

Canadian Journal of Plant Science Pub Date : 2023-02-08 DOI: 10.1139/cjps-2022-0211

E. Mapfumo, D. Chanasyk, D. Puurveen

{"title":"Long-term annual climate trends around the Breton Plots area, Alberta: is there any evidence of local climate change?","authors":"E. Mapfumo, D. Chanasyk, D. Puurveen","doi":"10.1139/cjps-2022-0211","DOIUrl":"https://doi.org/10.1139/cjps-2022-0211","url":null,"abstract":"Abstract The objective of this research was to investigate the long-term trends in historical climate variables using the data collected near the classical Breton Plots (Alberta, Canada) and to determine if the data show any evidence of local climate change. The climate data used for the study were obtained from the Alberta Climate Information Service for the years 1901–2020. Various parametric statistical analyses were conducted to determine if monotonic trends occurred in the climate variables over time, and the analyses were conducted on the annual data as well as the 30 year climate normals. Large fluctuations in annual climate variables occurred, but a positive linear trend was observed in the average annual and growing season minimum air temperatures over time. Between 1901 and 2020 the annual minimum air temperature average increased at a rate of 0.3 °C for every 10 years. During the winter periods (December, January, and February, inclusive) from 1901 to 2020, the minimum air temperature average increased at an even higher rate of 0.5 °C every 10 years. Overall, the 30 year climate normals for minimum and maximum air temperatures increased for most seasons. The rates of increase were largest over the winter period, at 0.5 °C every 10 years for minimum air temperature and at 0.3 °C every 10 years for maximum air temperature. Strong linear increases occurred over time for growing degree days, number of frost-free days, total annual precipitation, growing season precipitation, and off-season precipitation.","PeriodicalId":9530,"journal":{"name":"Canadian Journal of Plant Science","volume":"103 1","pages":"285 - 299"},"PeriodicalIF":1.2,"publicationDate":"2023-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48157678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Soybean seed protein content is lower but protein quality is higher in Western Canada compared with Eastern Canada 与加拿大东部相比，加拿大西部的大豆种子蛋白质含量较低，但蛋白质质量较高

IF 1.2 4区农林科学

Canadian Journal of Plant Science Pub Date : 2023-02-08 DOI: 10.1139/cjps-2022-0147

E. Cober, Ketema Daba, T. Warkentin, D. Tomasiewicz, P. Mooleki, Erin M Karppinen, James Frey, R. Mohr, A. Glenn, L. Shaw, S. Chalmers, A. Hou, L. O'Donoughue, Bahram Samanfar, Mehri Hadinezhad

{"title":"Soybean seed protein content is lower but protein quality is higher in Western Canada compared with Eastern Canada","authors":"E. Cober, Ketema Daba, T. Warkentin, D. Tomasiewicz, P. Mooleki, Erin M Karppinen, James Frey, R. Mohr, A. Glenn, L. Shaw, S. Chalmers, A. Hou, L. O'Donoughue, Bahram Samanfar, Mehri Hadinezhad","doi":"10.1139/cjps-2022-0147","DOIUrl":"https://doi.org/10.1139/cjps-2022-0147","url":null,"abstract":"Abstract Low seed protein content in soybeans [Glycine max (L.) Merr.] grown in Western Canada can result in soybean meal that does not meet the 48% protein standard. The objectives of this study were to quantify seed composition, agronomic differences between Eastern and Western Canada-grown soybeans, and to determine the yield cost of raising Western soybean protein. Twenty high-to-low protein, including one non-nodulating, genotypes were grown at two locations in Eastern Canada, and eight locations in Western Canada from 2018 to 2021 to determine seed protein, seed composition, and agronomic traits. Over all environments, genotype seed protein ranged from 36.8% to 46.9% with 35.0% for the non-nodulating line. Average seed protein was significantly higher in Eastern Canada (41.6%) compared with Eastern Prairie (39.3%) and Prairie sites (39.7%). There are not separate east–west mega-environments for seed protein in Canada; a high protein genotype is high protein across Canada. With an increase of seed protein by 1%, seed yield dropped by 45.3 kg ha−1 in Eastern Canada, 53.1 kg ha−1 in the Eastern Prairie, and 78.4 kg ha−1 in Prairie sites. In Western Canada, plants were taller but lower yielding with fewer and smaller seeds, and produced lower fixed nitrogen protein yield compared with Eastern Canada. Seed protein quality, quantified with the 11S:7S ratio, was higher in Western Canada compared with Eastern Canada. Plant breeders and growers may need to select higher protein genotypes at the cost of lower yield, if the soybean industry is unable to exploit the protein quality advantage in Western Canada.","PeriodicalId":9530,"journal":{"name":"Canadian Journal of Plant Science","volume":"103 1","pages":"411 - 421"},"PeriodicalIF":1.2,"publicationDate":"2023-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41323203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

AAC Douglas oat AAC道格拉斯燕麦

IF 1.2 4区农林科学

Canadian Journal of Plant Science Pub Date : 2023-01-26 DOI: 10.1139/cjps-2022-0248

J.W. Mitchell Fetch, K.T. Nilsen, N. Ames, T.G. Fetch, C. McCartney, J. Menzies, X. Wang, A. Burt, S. Kumar, D. Green, K. Stewart, W. Yan, W. Dyck, K.D. Hamilton

引用次数: 0

Ovule abortion and seed set of field pea (Pisum sativum L.) grown under high temperature 高温条件下豌豆的败卵和结实

IF 1.2 4区农林科学

Canadian Journal of Plant Science Pub Date : 2023-01-25 DOI: 10.1139/cjps-2022-0156

Evelyn E. Osorio, A. Davis, T. Warkentin, R. Bueckert

{"title":"Ovule abortion and seed set of field pea (Pisum sativum L.) grown under high temperature","authors":"Evelyn E. Osorio, A. Davis, T. Warkentin, R. Bueckert","doi":"10.1139/cjps-2022-0156","DOIUrl":"https://doi.org/10.1139/cjps-2022-0156","url":null,"abstract":"Abstract In pea, high temperatures during reproductive development lead to severe yield loss. Although the ovule is the seed precursor, studies elucidating the effect of heat on this plant structure are scarce. We investigated the impact of heat in the field and growth chamber on ovules 4 days after the open flower (4DOF) stage. Objectives were to identify associations between ovaries and plant performance, and to evaluate seed set and ovule abortion of heat-treated plants for six cultivars from a diverse range of seed-to-ovule ratios. In the field, plants were seeded at early (control, [early seeded pea, ESP]) and late (stress plant [late seeded pea, LSP]) periods in the season. In growth chambers, plants were exposed to heat (35/18 °C) at early flowering for 4 days and then evaluated at maturity. Stressed plants (LSP) displayed twice as many aborted ovules than ESP during early embryo growth (pro-embryo to globular stage) in synchrony with reduced ovaries, ovules, and embryo sac size. Cultivars with reduced ovary size at 4DOF were related to a high number of reproductive nodes and pods in LSP (r = −0.44 to −0.48). Similarly, under growth chamber conditions, heat caused seed reduction by increasing the abortion of immature ovules (early embryonic stages) at various reproductive nodes. Collectively, our results indicated that pea seed loss from heat in the field is largely due to early embryo abortion, a novel finding, rather than disruption of pre-fertilization events. Compensatory effects on plant performance infer plant resource adjustment. Our findings contribute to the assessment and selection of high-yielding pea cultivars for future warming seasons.","PeriodicalId":9530,"journal":{"name":"Canadian Journal of Plant Science","volume":"103 1","pages":"270 - 284"},"PeriodicalIF":1.2,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45073400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Breeding indicators for high-yielding field pea under normal and heat stress environments 正常和高温胁迫条件下高产大田豌豆育种指标研究

IF 1.2 4区农林科学

Canadian Journal of Plant Science Pub Date : 2023-01-25 DOI: 10.1139/cjps-2022-0158

Shaoming Huang, K. K. Gali, G. Arganosa, B. Tar’an, R. Bueckert, T. Warkentin

{"title":"Breeding indicators for high-yielding field pea under normal and heat stress environments","authors":"Shaoming Huang, K. K. Gali, G. Arganosa, B. Tar’an, R. Bueckert, T. Warkentin","doi":"10.1139/cjps-2022-0158","DOIUrl":"https://doi.org/10.1139/cjps-2022-0158","url":null,"abstract":"Abstract The warming Canadian summers have become a major abiotic stress to crops, including pea. In the past decade, attempts were made in the understanding of heat stress effect and genomic mapping for heat-responsive traits in field pea. In this study, a new recombinant inbred line population (PR-24) consisting of 39 lines was tested in 6 trials in the summers of 2020 (near normal weather conditions) and 2021 (hot/dry conditions). PR-24 was phenotyped for days to flowering (DTF), days to maturity, plant height, lodging, yield components, plot yield, and seed quality traits. Plant height could be an effective indicator for yield prediction, because its correlation with plot yield was significantly positive in all six trials despite varying degrees of heat and drought stress. Under normal summer weather conditions in 2020, relatively late maturity was correlated with greater seed yield; under heat/drought stress conditions in 2021, successful pod development on the main stem was important for final plot yield. Linkage mapping was used to dissect the genomic regions associated with the measured traits. Four QTLs were identified over multiple trials, one each for DTF (chromosome 7), reproductive node number (chromosome 5), pod number (chromosome 2), and seed protein concentration (chromosome 5). Furthermore, two indices, i.e., stress tolerance index and geometric mean yield, previously used in drought tolerance assessment were validated as useful criteria for heat tolerance assessment in this study.","PeriodicalId":9530,"journal":{"name":"Canadian Journal of Plant Science","volume":"103 1","pages":"259 - 269"},"PeriodicalIF":1.2,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48452493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Distinctive plasticity of maize (Zea mays) root types to variable nitrate concentration 玉米(Zea mays)根系类型对不同硝酸盐浓度的独特可塑性

IF 1.2 4区农林科学

Canadian Journal of Plant Science Pub Date : 2023-01-24 DOI: 10.1139/cjps-2022-0246

Yutong Jiang, Chih-Yu Hung, J. Whalen

引用次数: 0

Effects of postharvest deficit irrigation on sweet cherry (Prunus avium) in five Okanagan Valley, Canada, orchards: II. Phenology, cold hardiness, fruit yield, and quality 加拿大奥卡纳根山谷5个果园采后亏缺灌溉对甜樱桃（Prunus avium）的影响：Ⅱ。表型、抗寒性、果实产量和品质

IF 1.2 4区农林科学

Canadian Journal of Plant Science Pub Date : 2023-01-20 DOI: 10.1139/cjps-2022-0201

E. Houghton, K. Bevandick, D. Neilsen, K. Hannam, L. Nelson

{"title":"Effects of postharvest deficit irrigation on sweet cherry (Prunus avium) in five Okanagan Valley, Canada, orchards: II. Phenology, cold hardiness, fruit yield, and quality","authors":"E. Houghton, K. Bevandick, D. Neilsen, K. Hannam, L. Nelson","doi":"10.1139/cjps-2022-0201","DOIUrl":"https://doi.org/10.1139/cjps-2022-0201","url":null,"abstract":"Abstract Irrigated agriculture in semi-arid regions is expected to increase in the future, which puts greater demands on scarce water resources. Sustainable irrigation strategies in semi-arid regions will support agricultural resilience to climatic change. The response of “Sweetheart”/Mazzard sweet cherry trees (Prunus avium L.) to postharvest deficit irrigation (PDI), as a water conservation method, was studied over three seasons (2019–2022) in the semi-arid Okanagan Valley of British Columbia, at five commercial orchards. The following irrigation treatments were applied; (i) a control of full irrigation, irrigated according to conventional growers’ practice at each orchard, (ii) PDI-30: 27%–33% reduction in irrigation volume, after harvest (67%–73% of control), and (iii) PDI-50: 47%–52% reduction in irrigation volume, after harvest (48–53% of control). Spring phenology (the timing of flower bud development, from side green to full bloom), flower bud moisture content and cold hardiness, and fruit yield and quality (before and after cold storage and shelf-life conditions) were assessed to determine if PDI altered fruit development over the subsequent growing season. Neither PDI-30 nor PDI-50 caused changes in the timing of flower bud phenology, cold hardiness or moisture content relative to the control. PDI treatments also had no effect on fruit yield or fruit quality at harvest or after storage and shelf-life conditions. These results suggest PDI could be used to reduce irrigation water use in semi-arid regions, like the Okanagan Valley, without affecting sweet cherry production or fruit quality.","PeriodicalId":9530,"journal":{"name":"Canadian Journal of Plant Science","volume":"103 1","pages":"184 - 200"},"PeriodicalIF":1.2,"publicationDate":"2023-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42301927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Correction: Triticale cultivars and seeding rates affect wheat stem sawfly survivorship and parasitism by Bracon cephi 更正:小黑麦的品种和播种量影响小麦茎锯蝇的存活和被小檗寄生

IF 1.2 4区农林科学

Canadian Journal of Plant Science Pub Date : 2023-01-13 DOI: 10.1139/cjps-2022-0254

H. Carcamo, B. Beres, A. Wijerathna, T. Schwinghamer

引用次数: 0

Testing cover crop species under three soil moisture conditions in a controlled greenhouse environment 在受控温室环境中，对三种土壤湿度条件下的作物品种进行了覆盖试验

IF 1.2 4区农林科学

Canadian Journal of Plant Science Pub Date : 2023-01-12 DOI: 10.1139/cjps-2022-0188

M.L. Ben Kalifa, H. VanVolkenburg, L. Vasseur

{"title":"Testing cover crop species under three soil moisture conditions in a controlled greenhouse environment","authors":"M.L. Ben Kalifa, H. VanVolkenburg, L. Vasseur","doi":"10.1139/cjps-2022-0188","DOIUrl":"https://doi.org/10.1139/cjps-2022-0188","url":null,"abstract":"Abstract Extreme climatic events, such as drought and heavy rainfall, are increasing with climate change. These events can threaten agroecosystems, including vineyards. Cover crops are often grown in vineyards for various reasons and can be an effective strategy for climate change adaptation. Understanding which cover crop species can establish well under extreme climate conditions is important. We conducted a greenhouse experiment to investigate the responses of nine cover crop species to overwatered and water-deficit conditions. Treatments included (1) overwatered soil condition, watered at 100% field capacity daily, (2) control, watered at 60%–70% every other day, and (3) water deficit, watered at 15%–20% weekly for 53 growing days. Results indicated that the total dry weight of all species decreased (most significantly) under water-deficit conditions. However, pubescent wheatgrass and red fescue did not exhibit any stress symptoms. Apart from alfalfa, all species established well under overwatered conditions despite slight yellowing of foliage for crimson clover and hairy vetch. Pearl millet and yellow sweet clover had the best establishment regardless of conditions. Our results provide important information on the selection of cover crops that can withstand climatic variability and thrive in the extreme conditions linked to the climate change scenario in Canada.","PeriodicalId":9530,"journal":{"name":"Canadian Journal of Plant Science","volume":"103 1","pages":"175 - 183"},"PeriodicalIF":1.2,"publicationDate":"2023-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44704293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Tools for climate resilience in tree fruit II: a calcium carbonate-based foliar spray showed potential for protecting fruit quality during an unprecedented heat event 果树气候适应性工具II：在前所未有的高温事件中，基于碳酸钙的叶面喷雾显示出保护果实质量的潜力

IF 1.2 4区农林科学

Canadian Journal of Plant Science Pub Date : 2023-01-12 DOI: 10.1139/cjps-2022-0079

K. Hannam, J. MacDonald

引用次数: 1