Zhijie Wang, J. Owens, B. Thomas, X. Hao, K. Coles, C. Holzapfel, Elham Rahmani, R. Karimi, K. S. Gill, B. Beres
Abstract Optimizing the timing of nitrogen (N) enhanced efficiency fertilizers (EEFs) may maximize winter wheat (Triticum aestivum L.) grain yield, protein content, and N-use efficiency (NUE). From 2013 to 2018, experiments were conducted at two irrigated and six rain-fed sites across the Canadian Prairies (24 site-years) to evaluate winter wheat responses to N source and timing/placement effects of EEFs. Nitrogen sources included untreated urea, nitrification inhibitor nitrapyrin treated urea, urease inhibitor N-(n-butyl) thiophosphoric triamide (NBPT) plus nitrification inhibitor dicyandiamide (DCD)-treated urea (NBPT + DCD), and polymer-coated urea (PCU). The N sources were all side-banded at planting, 30% side-banded at planting plus 70% broadcast in-crop late-fall (averaged 38 days after planting; split-applied late-fall), or 30% side-banded at planting plus 70% broadcast in-crop early-spring (averaged 224 days after planting; split-applied early-spring). Nitrous oxide and methane emissions were measured at one rain-fed site to test whether N source and timing/placement influenced CO2-equivalents (CO2-eq; nitrous oxide + methane). Under irrigation, NBPT + DCD consistently produced the highest yields regardless of timing/placement; however, the 80% of the recommended rate caused suboptimal protein responses (≤11%) unless split-application of N was adopted. Untreated urea produced the highest net CO2-eq and yield-scaled CO2-eq emissions, with the highest emissions when urea was split-applied early-spring. To optimize winter wheat production and NUE, we conclude that NBPT + DCD all-banded during seeding operations or split-applied early-spring provided similar and often superior results to other sources, including a more typical system of urea side-banded at the time of seeding.
{"title":"Winter wheat responses to enhanced efficiency granular nitrogen fertilizer in the Canadian Prairies","authors":"Zhijie Wang, J. Owens, B. Thomas, X. Hao, K. Coles, C. Holzapfel, Elham Rahmani, R. Karimi, K. S. Gill, B. Beres","doi":"10.1139/cjps-2022-0209","DOIUrl":"https://doi.org/10.1139/cjps-2022-0209","url":null,"abstract":"Abstract Optimizing the timing of nitrogen (N) enhanced efficiency fertilizers (EEFs) may maximize winter wheat (Triticum aestivum L.) grain yield, protein content, and N-use efficiency (NUE). From 2013 to 2018, experiments were conducted at two irrigated and six rain-fed sites across the Canadian Prairies (24 site-years) to evaluate winter wheat responses to N source and timing/placement effects of EEFs. Nitrogen sources included untreated urea, nitrification inhibitor nitrapyrin treated urea, urease inhibitor N-(n-butyl) thiophosphoric triamide (NBPT) plus nitrification inhibitor dicyandiamide (DCD)-treated urea (NBPT + DCD), and polymer-coated urea (PCU). The N sources were all side-banded at planting, 30% side-banded at planting plus 70% broadcast in-crop late-fall (averaged 38 days after planting; split-applied late-fall), or 30% side-banded at planting plus 70% broadcast in-crop early-spring (averaged 224 days after planting; split-applied early-spring). Nitrous oxide and methane emissions were measured at one rain-fed site to test whether N source and timing/placement influenced CO2-equivalents (CO2-eq; nitrous oxide + methane). Under irrigation, NBPT + DCD consistently produced the highest yields regardless of timing/placement; however, the 80% of the recommended rate caused suboptimal protein responses (≤11%) unless split-application of N was adopted. Untreated urea produced the highest net CO2-eq and yield-scaled CO2-eq emissions, with the highest emissions when urea was split-applied early-spring. To optimize winter wheat production and NUE, we conclude that NBPT + DCD all-banded during seeding operations or split-applied early-spring provided similar and often superior results to other sources, including a more typical system of urea side-banded at the time of seeding.","PeriodicalId":9530,"journal":{"name":"Canadian Journal of Plant Science","volume":"103 1","pages":"368 - 388"},"PeriodicalIF":1.2,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43549810","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}
J. Owens, Zhijie Wang, B. Thomas, X. Hao, K. Coles, Elham Rahmani, R. Karimi, K. S. Gill, B. Beres
Abstract To evaluate how enhanced efficiency liquid nitrogen (N) fertilizers affect winter wheat (Triticum aestivum L.) production under irrigated and rain-fed environments, experiments were conducted at two irrigated and five rain-fed sites across the Canadian Prairies from 2013 to 2018 (22 site-years). The N fertilizers included urea ammonium nitrate (UAN) treated with (i) urease inhibitor N-(n-butyl) thiophosphoric triamide (NBPT), (ii) NBPT plus nitrification inhibitor dicyandiamide, and (iii) nitrification inhibitor nitrapyrin (Nitrapyrin), as well as untreated UAN and urea, and polymer-coated urea (PCU). All fertilizers were applied by banding 50% at planting and 50% in-crop in early-spring, except PCU, where PCU was applied at planting and urea was applied in early-spring. Nitrous oxide (N2O) emissions and methane (CH4) uptake were measured at one rain-fed site from 2014 to 2017. NBPT increased grain yield by 1.2%–14% and 2.8%–4% under irrigated and rain-fed environments, respectively, relative to all the other N sources except untreated urea in the rain-fed environment. Total N uptake with NBPT was between 0% and 12% higher than the other N sources across irrigated and rain-fed environments. The results suggested that both grain yield and N use efficiency were optimized when UAN contained a urease inhibitor. All liquid enhanced efficiency fertilizers produced grain protein content greater than 11%, except Nitrapyrin under irrigated environments. Data from three site-years indicated that greenhouse gas emissions were unaffected by N source under rain-fed conditions. Liquid UAN with a urease inhibitor may have the most potential to optimize winter wheat production and N use efficiency in the Canadian Prairies.
{"title":"Winter wheat responses to enhanced efficiency liquid nitrogen fertilizers in the Canadian Prairies","authors":"J. Owens, Zhijie Wang, B. Thomas, X. Hao, K. Coles, Elham Rahmani, R. Karimi, K. S. Gill, B. Beres","doi":"10.1139/cjps-2022-0208","DOIUrl":"https://doi.org/10.1139/cjps-2022-0208","url":null,"abstract":"Abstract To evaluate how enhanced efficiency liquid nitrogen (N) fertilizers affect winter wheat (Triticum aestivum L.) production under irrigated and rain-fed environments, experiments were conducted at two irrigated and five rain-fed sites across the Canadian Prairies from 2013 to 2018 (22 site-years). The N fertilizers included urea ammonium nitrate (UAN) treated with (i) urease inhibitor N-(n-butyl) thiophosphoric triamide (NBPT), (ii) NBPT plus nitrification inhibitor dicyandiamide, and (iii) nitrification inhibitor nitrapyrin (Nitrapyrin), as well as untreated UAN and urea, and polymer-coated urea (PCU). All fertilizers were applied by banding 50% at planting and 50% in-crop in early-spring, except PCU, where PCU was applied at planting and urea was applied in early-spring. Nitrous oxide (N2O) emissions and methane (CH4) uptake were measured at one rain-fed site from 2014 to 2017. NBPT increased grain yield by 1.2%–14% and 2.8%–4% under irrigated and rain-fed environments, respectively, relative to all the other N sources except untreated urea in the rain-fed environment. Total N uptake with NBPT was between 0% and 12% higher than the other N sources across irrigated and rain-fed environments. The results suggested that both grain yield and N use efficiency were optimized when UAN contained a urease inhibitor. All liquid enhanced efficiency fertilizers produced grain protein content greater than 11%, except Nitrapyrin under irrigated environments. Data from three site-years indicated that greenhouse gas emissions were unaffected by N source under rain-fed conditions. Liquid UAN with a urease inhibitor may have the most potential to optimize winter wheat production and N use efficiency in the Canadian Prairies.","PeriodicalId":9530,"journal":{"name":"Canadian Journal of Plant Science","volume":"103 1","pages":"353 - 367"},"PeriodicalIF":1.2,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45749603","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}
Abstract Cicer milkvetch (Astragalus cicer L.) is a non-bloating perennial forage legume suitable for stockpiled grazing in the fall because of its rapid regrowth and high nutritive value. Genetically diverse germplasm are needed for the development of improved cicer milkvetch cultivars that can provide consistent production across variable climatic conditions. The objective of this research was to assess the diversity and relationship of 27 cicer milkvetch populations to inform the selection of populations for future cultivars that have superior agro-morphological traits during summer and fall growth. A completely randomized field trial was established in 2019 near Clavet, Saskatchewan. In 2020 and 2021, forage dry matter yield (DMY), maximum stem length, leaf number per stem, rhizome spread, and stem density were recorded on 27 populations of cicer milkvetch in late June at a first harvest and mid-October at a stockpile harvest. All five traits were different (p < 0.05) among the populations at both harvests except for leaf number per stem in late June. Principal component analysis identified that the first three principal components described 89% of the variation in agro-morphological traits at the first and stockpile harvests. Of the agro-morphological traits, maximum stem length had the greatest correlation with forage DMY at the first harvest (r = 0.69) and stockpile harvest (r = 0.6). Our research demonstrates that there is a high morphological diversity among cicer milkvetch populations, and plant introductions, PI 362266, PI 576963, PI 440143, and PI 362254 could be used as novel genetic resources for the development of climate-resilient cultivars.
{"title":"Assessment of diverse cicer milkvetch (Astragalus cicer L.) germplasm for agro-morphological traits under a stockpiling system","authors":"David Robert MacTaggart, B. Biligetu, H. Lardner","doi":"10.1139/cjps-2022-0198","DOIUrl":"https://doi.org/10.1139/cjps-2022-0198","url":null,"abstract":"Abstract Cicer milkvetch (Astragalus cicer L.) is a non-bloating perennial forage legume suitable for stockpiled grazing in the fall because of its rapid regrowth and high nutritive value. Genetically diverse germplasm are needed for the development of improved cicer milkvetch cultivars that can provide consistent production across variable climatic conditions. The objective of this research was to assess the diversity and relationship of 27 cicer milkvetch populations to inform the selection of populations for future cultivars that have superior agro-morphological traits during summer and fall growth. A completely randomized field trial was established in 2019 near Clavet, Saskatchewan. In 2020 and 2021, forage dry matter yield (DMY), maximum stem length, leaf number per stem, rhizome spread, and stem density were recorded on 27 populations of cicer milkvetch in late June at a first harvest and mid-October at a stockpile harvest. All five traits were different (p < 0.05) among the populations at both harvests except for leaf number per stem in late June. Principal component analysis identified that the first three principal components described 89% of the variation in agro-morphological traits at the first and stockpile harvests. Of the agro-morphological traits, maximum stem length had the greatest correlation with forage DMY at the first harvest (r = 0.69) and stockpile harvest (r = 0.6). Our research demonstrates that there is a high morphological diversity among cicer milkvetch populations, and plant introductions, PI 362266, PI 576963, PI 440143, and PI 362254 could be used as novel genetic resources for the development of climate-resilient cultivars.","PeriodicalId":9530,"journal":{"name":"Canadian Journal of Plant Science","volume":"103 1","pages":"389 - 400"},"PeriodicalIF":1.2,"publicationDate":"2023-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47382885","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}
In the agricultural sector, innovation is a vital economic driver for increasing food production. New crop varieties are developed and commercialized, greatly contributing to improved global food security through higher yields, improved nutrition and climate resiliency. Canada is a competitive and innovative actor in the global seed market. This article quantifies the degree of improvement for numerous crop traits required for commercialization success. We use empirical data from seed producers in the prairies to identify their adoption criteria to multiply new seed varieties. Results show that yield potential, disease resistance and lodging resistance are the key traits for pedigreed seed growers regardless of crop type, while other agronomic traits depend on the crop type. Quality factors such as malting or milling properties for cereals, protein content for pulses and oil content for oilseeds are also part of the variety selection decision process for prairie pedigreed seed growers.
{"title":"Correction: Decision factors influencing new variety adoption in western Canada by the seed industry","authors":"Rim Lassoued, S. Smyth","doi":"10.1139/cjps-2023-0029","DOIUrl":"https://doi.org/10.1139/cjps-2023-0029","url":null,"abstract":"In the agricultural sector, innovation is a vital economic driver for increasing food production. New crop varieties are developed and commercialized, greatly contributing to improved global food security through higher yields, improved nutrition and climate resiliency. Canada is a competitive and innovative actor in the global seed market. This article quantifies the degree of improvement for numerous crop traits required for commercialization success. We use empirical data from seed producers in the prairies to identify their adoption criteria to multiply new seed varieties. Results show that yield potential, disease resistance and lodging resistance are the key traits for pedigreed seed growers regardless of crop type, while other agronomic traits depend on the crop type. Quality factors such as malting or milling properties for cereals, protein content for pulses and oil content for oilseeds are also part of the variety selection decision process for prairie pedigreed seed growers.","PeriodicalId":9530,"journal":{"name":"Canadian Journal of Plant Science","volume":"103 1","pages":"329 - 330"},"PeriodicalIF":1.2,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42010141","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}
E. García-López, C. M. Batista-Marte, C. Serra, A.S. Sosa-Natta, Á. Villegas-Monter, E. Hernández-Castro, M. Camacho-Tapia, J. A. Mora-Aguilera
Abstract Mango malformation disease (MMD) caused by Fusarium species has become an important disease of mango (Mangifera indica L.) orchards worldwide. In the Dominican Republic, MMD was first observed in 2008 in orchards of Azua and Peravia provinces, with incidence of up to 50%. This study aimed to estimate the malformation prevalence and distribution in the main mango growing areas of the Dominican Republic and to assess the susceptibility of six commercial cultivars commonly grown in this country. Mango malformation was found in 18 out of 58 orchards, all located in Peravia and Azua. Peravia showed the highest incidence, with values of up to 75% (2013) and 87.5% (2014), and the interpolative analysis made with ArcGIS showed this province as being more inductive for Fusarium spp. occurrence. Pathogenicity tests were conducted in 2013 and 2014 on 10-month-old healthy mango plants per cultivar. Inoculation was done by infiltration of Fusarium pseudocircinatum and Fusarium decemcellulare conidial suspensions into the vegetative apical buds, singly and in combination. In inoculated plants, symptoms such as loss of apical dominance, excessive proliferation of apical or axillary buds with thickened stems, and reduction of leaf lamina were associated with F. pseudocircinatum. In addition to these symptoms, leathery protuberant buds and eventual death of infiltrated plants were associated with F. decemcellulare, singly or coinoculated with F. pseudocircinatum. Based on a disease severity index (DSI), “Tommy Atkins” was tolerant (DSI = 7.8%) and “Puntica” and “Banilejo” were highly susceptible (DSI = 22% and 28.5%).
{"title":"Mango malformation: etiology, symptoms, distribution and cultivar susceptibility in the Dominican Republic","authors":"E. García-López, C. M. Batista-Marte, C. Serra, A.S. Sosa-Natta, Á. Villegas-Monter, E. Hernández-Castro, M. Camacho-Tapia, J. A. Mora-Aguilera","doi":"10.1139/cjps-2022-0005","DOIUrl":"https://doi.org/10.1139/cjps-2022-0005","url":null,"abstract":"Abstract Mango malformation disease (MMD) caused by Fusarium species has become an important disease of mango (Mangifera indica L.) orchards worldwide. In the Dominican Republic, MMD was first observed in 2008 in orchards of Azua and Peravia provinces, with incidence of up to 50%. This study aimed to estimate the malformation prevalence and distribution in the main mango growing areas of the Dominican Republic and to assess the susceptibility of six commercial cultivars commonly grown in this country. Mango malformation was found in 18 out of 58 orchards, all located in Peravia and Azua. Peravia showed the highest incidence, with values of up to 75% (2013) and 87.5% (2014), and the interpolative analysis made with ArcGIS showed this province as being more inductive for Fusarium spp. occurrence. Pathogenicity tests were conducted in 2013 and 2014 on 10-month-old healthy mango plants per cultivar. Inoculation was done by infiltration of Fusarium pseudocircinatum and Fusarium decemcellulare conidial suspensions into the vegetative apical buds, singly and in combination. In inoculated plants, symptoms such as loss of apical dominance, excessive proliferation of apical or axillary buds with thickened stems, and reduction of leaf lamina were associated with F. pseudocircinatum. In addition to these symptoms, leathery protuberant buds and eventual death of infiltrated plants were associated with F. decemcellulare, singly or coinoculated with F. pseudocircinatum. Based on a disease severity index (DSI), “Tommy Atkins” was tolerant (DSI = 7.8%) and “Puntica” and “Banilejo” were highly susceptible (DSI = 22% and 28.5%).","PeriodicalId":9530,"journal":{"name":"Canadian Journal of Plant Science","volume":"103 1","pages":"300 - 311"},"PeriodicalIF":1.2,"publicationDate":"2023-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44823480","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}
E. Mapfumo, D. Chanasyk, D. Puurveen, Shannon Elton, Santanu Acharya
Abstract The objective of this literature review was to compile research findings on climate change and its impacts on crop production in Prairie Provinces of Canada. Our search strategy included finding primary literature articles from various databases. Seven articles reported increases in average and minimum air temperature over time in the Prairie Provinces of Canada. Increases in maximum air temperature were smaller than that for minimum air temperature. Growing degree days and corn heat units also increased over time, which has allowed for potential expansion of corn growth northwards. While overall increases in average annual precipitation and growing season precipitation have occurred in Canada between 1900 and 2021, western Canada showed increases in some regions but decreases in others. Off-season precipitation and snow cover duration in Canada have decreased since 1950. The number of frost-free days has increased across Canada, on the Prairies and southern Saskatchewan since 1900. Annual snowfall has decreased since 1950 and across Canada the annual maximum snow depth has also decreased. Overall, studies focusing on the Prairie Provinces in Canada have shown accelerated changes in several climate parameters over time, affecting cropping areas and crop yields.
{"title":"Historic climate change trends and impacts on crop yields in key agricultural areas of the prairie provinces in Canada: a literature review","authors":"E. Mapfumo, D. Chanasyk, D. Puurveen, Shannon Elton, Santanu Acharya","doi":"10.1139/cjps-2022-0215","DOIUrl":"https://doi.org/10.1139/cjps-2022-0215","url":null,"abstract":"Abstract The objective of this literature review was to compile research findings on climate change and its impacts on crop production in Prairie Provinces of Canada. Our search strategy included finding primary literature articles from various databases. Seven articles reported increases in average and minimum air temperature over time in the Prairie Provinces of Canada. Increases in maximum air temperature were smaller than that for minimum air temperature. Growing degree days and corn heat units also increased over time, which has allowed for potential expansion of corn growth northwards. While overall increases in average annual precipitation and growing season precipitation have occurred in Canada between 1900 and 2021, western Canada showed increases in some regions but decreases in others. Off-season precipitation and snow cover duration in Canada have decreased since 1950. The number of frost-free days has increased across Canada, on the Prairies and southern Saskatchewan since 1900. Annual snowfall has decreased since 1950 and across Canada the annual maximum snow depth has also decreased. Overall, studies focusing on the Prairie Provinces in Canada have shown accelerated changes in several climate parameters over time, affecting cropping areas and crop yields.","PeriodicalId":9530,"journal":{"name":"Canadian Journal of Plant Science","volume":"103 1","pages":"243 - 258"},"PeriodicalIF":1.2,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42068576","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}
Sunflower (Helianthus annuus L.) is a commercially important cut flower requiring research into postharvest factors such as recutting, water uptake, stem number, cooling rate, and storage temperature to maximize vase life. Stems of ‘Sunbright’ sunflower were either recut before or after a drying period up to 48 hours. Water uptake, stem quality, and microbial counts were determined 4 days after rehydration. Water potential was determined by five corresponding leaves per treatment. Effects of stem number per vase were evaluated with either one, three, five, or ten stems. Effects of cooling rate were determined by temperatures of 5 ºC for 3 days in the dark, 5 ºC for 2 days in the dark preceded by 24 hours at either 20 ºC with light or 32 ºC in a shaded area outdoors or were maintained in a shaded area 32 ºC for 3 days. Hydration and storage temperature effects were determined by either transfer to a postharvest environment, 20 ºC cooler for 2 hours, immediate storage for 2 days at 5 ºC or 3 days at 5 ºC after recutting the basal stem. Allowing stems to dry up to 48 hours reduced vase life by 2.3 days or less. Vase life was unaffected by harvesting into water or number of stems in a vase but was affected by temperature such that the longest vase life of 13.2 days occurred when stems were stored for 3 days at 5 °C + 0.5 ºC followed by postharvest evaluation at 20 °C + 1 ºC.
{"title":"Postharvest Handling and Vase Life of Cut Sunflower","authors":"J. Kalinowski, Erin P. Moody, J. Dole","doi":"10.1139/cjps-2022-0179","DOIUrl":"https://doi.org/10.1139/cjps-2022-0179","url":null,"abstract":"Sunflower (Helianthus annuus L.) is a commercially important cut flower requiring research into postharvest factors such as recutting, water uptake, stem number, cooling rate, and storage temperature to maximize vase life. Stems of ‘Sunbright’ sunflower were either recut before or after a drying period up to 48 hours. Water uptake, stem quality, and microbial counts were determined 4 days after rehydration. Water potential was determined by five corresponding leaves per treatment. Effects of stem number per vase were evaluated with either one, three, five, or ten stems. Effects of cooling rate were determined by temperatures of 5 ºC for 3 days in the dark, 5 ºC for 2 days in the dark preceded by 24 hours at either 20 ºC with light or 32 ºC in a shaded area outdoors or were maintained in a shaded area 32 ºC for 3 days. Hydration and storage temperature effects were determined by either transfer to a postharvest environment, 20 ºC cooler for 2 hours, immediate storage for 2 days at 5 ºC or 3 days at 5 ºC after recutting the basal stem. Allowing stems to dry up to 48 hours reduced vase life by 2.3 days or less. Vase life was unaffected by harvesting into water or number of stems in a vase but was affected by temperature such that the longest vase life of 13.2 days occurred when stems were stored for 3 days at 5 °C + 0.5 ºC followed by postharvest evaluation at 20 °C + 1 ºC.","PeriodicalId":9530,"journal":{"name":"Canadian Journal of Plant Science","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47297267","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}
Sung-Jong Lee, T. Demeke, M. Dusabenyagasani, D. Saydak, Daniel Perry, S. Walkowiak
Abstract In this study, we report an updated panel of 32 DNA markers used for identification of wheat varieties and assess their performance in the OpenArray and SmartChip high-throughput genotyping systems. While both systems are unique and offer different advantages and disadvantages, both systems can successfully identify Canadian wheat varieties.
{"title":"Evaluation of two high-throughput genotyping systems for rapid identification of Canadian wheat varieties","authors":"Sung-Jong Lee, T. Demeke, M. Dusabenyagasani, D. Saydak, Daniel Perry, S. Walkowiak","doi":"10.1139/cjps-2022-0192","DOIUrl":"https://doi.org/10.1139/cjps-2022-0192","url":null,"abstract":"Abstract In this study, we report an updated panel of 32 DNA markers used for identification of wheat varieties and assess their performance in the OpenArray and SmartChip high-throughput genotyping systems. While both systems are unique and offer different advantages and disadvantages, both systems can successfully identify Canadian wheat varieties.","PeriodicalId":9530,"journal":{"name":"Canadian Journal of Plant Science","volume":"103 1","pages":"422 - 425"},"PeriodicalIF":1.2,"publicationDate":"2023-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45620150","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}
Y. M. N. Adedze, Wenyi Fan, Xia Lu, Wenting Zhang, X. Yang, Zhengjun Deng, Luhua Teng, Guangli Xu, Xiaoli Wang, Wenhu Li
Abstract Melon's fruit skin quality is an agriculturally important and consumer-appealing trait. To identify molecular markers associated with fruit skin qualities, including reticulation and color, a total of 1200 Insertion/Deletion (InDel) markers randomly selected from the whole genome re-sequencing data of melon were combined with bulk segregant analysis to analyze a panel of melon genetic resources presenting reticulated- and smooth-skinned fruits as well as varying fruit skin colors. Four DNA bulks, including reticulated skin DNA bulk, smoothed skin DNA bulk, green skin DNA bulk, as well as white skin and light yellow skin DNA bulks, were developed. Four DNA pools were created by combining the DNA of 12 representative plants from each DNA bulk for polymorphism analysis, and 200 polymorphic InDel markers were selected. These polymorphic markers were used to characterize typical genetic bands within each DNA bulk. Two InDel markers, MC8-52 and MC4-7, were discovered to be related to fruit surface patterning (reticulated- and smooth-skinned fruits) and fruit color (green and white–light yellow fruits), respectively. These markers offer a high degree of detection accuracy. InDel marker MC8-52 on chromosome 8 achieved detection accuracies of 78.33% and 90.56%, whereas marker MC4-7 on chromosome 4 displayed detection accuracies of 92.92% and 83.35%, respectively. However, these markers were seen as a likely means of identifying strongly related markers for these traits. Hence, a high-resolution map of genomic regions carrying them is required for the development of highly linked markers for these traits.
{"title":"Towards the development of the PCR-based InDel markers associated with fruit skin quality traits in melon (Cucumis melo L.) using bulked segregant analysis","authors":"Y. M. N. Adedze, Wenyi Fan, Xia Lu, Wenting Zhang, X. Yang, Zhengjun Deng, Luhua Teng, Guangli Xu, Xiaoli Wang, Wenhu Li","doi":"10.1139/cjps-2022-0249","DOIUrl":"https://doi.org/10.1139/cjps-2022-0249","url":null,"abstract":"Abstract Melon's fruit skin quality is an agriculturally important and consumer-appealing trait. To identify molecular markers associated with fruit skin qualities, including reticulation and color, a total of 1200 Insertion/Deletion (InDel) markers randomly selected from the whole genome re-sequencing data of melon were combined with bulk segregant analysis to analyze a panel of melon genetic resources presenting reticulated- and smooth-skinned fruits as well as varying fruit skin colors. Four DNA bulks, including reticulated skin DNA bulk, smoothed skin DNA bulk, green skin DNA bulk, as well as white skin and light yellow skin DNA bulks, were developed. Four DNA pools were created by combining the DNA of 12 representative plants from each DNA bulk for polymorphism analysis, and 200 polymorphic InDel markers were selected. These polymorphic markers were used to characterize typical genetic bands within each DNA bulk. Two InDel markers, MC8-52 and MC4-7, were discovered to be related to fruit surface patterning (reticulated- and smooth-skinned fruits) and fruit color (green and white–light yellow fruits), respectively. These markers offer a high degree of detection accuracy. InDel marker MC8-52 on chromosome 8 achieved detection accuracies of 78.33% and 90.56%, whereas marker MC4-7 on chromosome 4 displayed detection accuracies of 92.92% and 83.35%, respectively. However, these markers were seen as a likely means of identifying strongly related markers for these traits. Hence, a high-resolution map of genomic regions carrying them is required for the development of highly linked markers for these traits.","PeriodicalId":9530,"journal":{"name":"Canadian Journal of Plant Science","volume":"103 1","pages":"312 - 318"},"PeriodicalIF":1.2,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48153999","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}
Abstract In the agricultural sector, innovation is a vital economic driver for increasing food production. New crop varieties are developed and commercialized, greatly contributing to improved global food security through higher yields, improved nutrition and climate resiliency. Canada is a competitive and innovative actor in the global seed market. This article quantifies the degree of improvement for numerous crop traits required for commercialization success. We use empirical data from seed producers in the prairies to identify their adoption criteria to multiply new seed varieties. Results show that yield potential, disease resistance and lodging resistance are the key traits for pedigreed seed growers regardless of crop type, while other agronomic traits depend on the crop type. Quality factors such as malting or milling properties for cereals, protein content for pulses and oil content for oilseeds are also part of the variety selection decision process for prairie pedigreed seed growers.
{"title":"Decision factors influencing new variety adoption in western Canada by the seed industry","authors":"Rim Lassoued, S. Smyth","doi":"10.1139/cjps-2022-0204","DOIUrl":"https://doi.org/10.1139/cjps-2022-0204","url":null,"abstract":"Abstract In the agricultural sector, innovation is a vital economic driver for increasing food production. New crop varieties are developed and commercialized, greatly contributing to improved global food security through higher yields, improved nutrition and climate resiliency. Canada is a competitive and innovative actor in the global seed market. This article quantifies the degree of improvement for numerous crop traits required for commercialization success. We use empirical data from seed producers in the prairies to identify their adoption criteria to multiply new seed varieties. Results show that yield potential, disease resistance and lodging resistance are the key traits for pedigreed seed growers regardless of crop type, while other agronomic traits depend on the crop type. Quality factors such as malting or milling properties for cereals, protein content for pulses and oil content for oilseeds are also part of the variety selection decision process for prairie pedigreed seed growers.","PeriodicalId":9530,"journal":{"name":"Canadian Journal of Plant Science","volume":"103 1","pages":"214 - 227"},"PeriodicalIF":1.2,"publicationDate":"2023-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44926631","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}
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