Article
Horticulture
Abbas Lafta, German Sandoya, Beiquan Mou
Summary: The study identified genetic variation in yield and horticultural traits of crisphead lettuce in warmer conditions, with Primetime cultivar showing the best heat tolerance and desirable characteristics. These results provide insights into cultivar responses to hot environments and can be utilized by breeders to develop new heat-tolerant lettuce varieties.
Article
Plant Sciences
Andrew M. Beacham, Katie A. Wilkins, Julia M. Davies, James M. Monaghan
Summary: Tipburn is a physiological disorder that causes leaf discolouration in lettuce and other leafy crops, leading to quality issues for the fresh produce industry. The underlying physiological and molecular basis of the disorder, which is linked to calcium deficiency, is poorly understood. However, a study on vacuolar calcium transporters in different lettuce cultivars found that some genes associated with calcium transport exhibited higher expression in resistant cultivars, providing insights into potential breeding strategies for developing resistant varieties.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2023)
Article
Horticulture
Eduardo Santana Aires, Carlos Alberto Aragao, Barbara Franca Dantas, Joao Domingos Rodrigues, Elizabeth Orika Ono
Summary: The study revealed that shading can affect the biochemical responses and productivity of iceberg lettuce, mainly influenced by solar radiation. High solar radiation levels between 16 and 18 MJ.m(-2).day(-1) in environments with a black screen and ChromatiNet(R) promoted higher enzyme activity and sugar content, leading to increased yield of Delicia and Balsamo cultivars in high temperature periods.
Article
Agriculture, Multidisciplinary
Andrew M. Beacham, Paul Hand, Graham R. Teakle, Guy C. Barker, David A. C. Pink, James M. Monaghan
Summary: Tipburn, a physiological disorder of lettuce, causes discoloration and collapse of leaf margins, leading to reduced crop quality. Through the study of lettuce germplasm resources, it was found that different genotypes have different effects on tipburn resilience, and leaf morphology factors also influence the ability to resist tipburn. By using genetic markers and germplasm resources, it is possible to develop tipburn resilient lettuce varieties.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2023)
Article
Biotechnology & Applied Microbiology
Jinghong Hao, Junwei Yang, Xiaofeng Liu, Gaoyang Pan, Yunfeng Li, Xiaolan Zhang, Yingyan Han, Shuangxi Fan, Zhaoyang Zhou
Summary: This study investigated the molecular mechanism of high temperature-induced bolting in lettuce. Through analysis of morphology, transcriptome, miRNAs, and methylome, it was found that miRNAs and DNA methylation may play a crucial role in gene expression regulation during high temperature-induced bolting. The study also identified potential protein kinase family proteins as important targets of miRNAs in this process.
Article
Agronomy
Catherine E. Belisle, Steven A. Sargent, German V. Sandoya, Jeffrey K. Brecht, Ru Dai, Bryce Askey, Zhentian Lei, Makou Lin, Jeongim Kim
Summary: Pink rib discoloration is a physiological disorder affecting the quality and marketability of lettuce. This study examined the effects of naturally occurring phytochemicals on pink rib expression in iceberg and Romaine lettuce. The results showed that melatonin treatment had a promising effect in reducing pink rib discoloration.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2023)
Article
Agronomy
Bozena Matysiak, Stanislaw Kaniszewski, Jacek Dysko, Waldemar Kowalczyk, Artur Kowalski, Maria Grzegorzewska
Summary: The study found that the RGB 70:18:12 light promoted the growth of romaine lettuce and inhibited the accumulation of K and Mg in the leaves. These plants had a low Nitrogen Balance Index (NBI) and a high flavonol index.
Article
Agronomy
Virginia Birlanga, Jose Ramon Acosta-Motos, Jose Manuel Perez-Perez
Summary: Study of 12 lettuce genotypes showed genotype x environment interactions in different growing seasons, with nutrient traits highly correlated with tipburn incidence. The experimental setup allows selection of tipburn-tolerant and highly productive lettuce genotypes suitable for hydroponics.
Article
Plant Sciences
Seyed Mohammad Nasir Mousavi, Csaba Bojtor, Arpad Illes, Janos Nagy
Summary: The interaction between genotype by trait was investigated in an experiment conducted at the University of Debrecen, revealing a more significant impact of fertilization treatments on the performance of the FAO410 hybrid compared to the FAO340 hybrid. The GGE biplot analysis showed that NPK4 and NPK5 were the most desirable treatments for several traits in the case of the FAO410 hybrid.
Article
Agronomy
Vasileios Greveniotis, Elisavet Bouloumpasi, Stylianos Zotis, Athanasios Korkovelos, Constantinos G. Ipsilandis
Summary: This study aimed to explore the yield stability of pea cultivars under conventional and low-input farming systems. The results showed a positive correlation between seed yield and other traits, with pod length being a key factor in indirect seed yield improvement. Certain cultivars exhibited stable performance even in low-input farming systems.
Article
Agronomy
Feng Zhao, Yajie Li, Tongxia Cui, Jiangping Bai
Summary: This study utilized GGE biplots to analyze the transcriptional gene expression of seven genes involved in SGA biosynthesis in potato tubers, aiming to investigate the effect of light on SGA biosynthesis. The results showed significantly higher expression levels for Pvs1, Sgt1, and Sgt3 genes compared to other tested genes. Furthermore, it was found that at least 6 hours of red light illumination were required to promote optimal gene expression in all five genotypes. This study provides valuable insights into the biosynthesis and metabolism of SGAs in potatoes.
Article
Plant Sciences
Muluken Enyew, Anders S. Carlsson, Mulatu Geleta, Kassahun Tesfaye, Cecilia Hammenhag, Amare Seyoum, Tileye Feyissa
Summary: This study determined the responses of different drought-tolerance related traits in Ethiopian sorghum, and identified novel sources of germplasm for breeding drought-tolerant crops. The findings showed that chlorophyll content is highly heritable and could be used as a criterion for selecting genotypes for drought-tolerant breeding. Several sorghum landraces outperformed improved varieties in terms of chlorophyll content, indicating their potential for improving drought tolerance through breeding.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Green & Sustainable Science & Technology
Juan Diego Valenzuela-Cobos, Fabricio Guevara-Viejo, Purificacion Vicente-Galindo, Purificacion Galindo-Villardon
Summary: Agriculture is a crucial sector in Ecuador's economy, and cocoa is its primary agricultural export. Flour samples from two mixtures were analyzed, and the results showed that mixture 1 had the most significant nutritional and commercial properties, making it suitable for producing new food products.
Article
Agronomy
Tonny Obua, Julius Pyton Sserumaga, Bruno Awio, Fredrick Nganga, Thomas L. Odong, Phinehas Tukamuhabwa, Geoffrey Tusiime, Settumba B. Mukasa, Margaret Nabasirye
Summary: The study evaluated the protein content and yield performance of 30 elite soybean genotypes across different seasons and locations in Uganda, highlighting a negative correlation between protein content and yield. The highest-yielding genotypes BSPS 48A-9-2, BSPS 48A-31, and Nam II x GC 44.2 are recommended for further evaluation in Uganda's farming conditions for selection as new soybean varieties.
Article
Plant Sciences
Dursun Kurt
Summary: This study aimed to determine the most suitable genotype and genotype selection technique in hybrid breeding of sun cured tobacco. The results suggest that hybridization is important for increasing yield and quality in sun cured production. The adaptability and stability of genotypes can be evaluated using the AMMI and GGE Biplot models. The P3xP5 and P4xP5 hybrids are recommended for commercial production due to their productivity and stability.
SOUTH AFRICAN JOURNAL OF BOTANY
(2023)
Article
Agriculture, Multidisciplinary
Pu-Fang Li, Bao-Luo Ma, Weikai Yan, Zheng-Guo Cheng, Feng-Min Li, You-Cai Xiong
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2016)
Editorial Material
Agronomy
W. Yan, J. Fregeau-Reid, R. Martin, D. Pageau, A. Xue, K. Jakubinek, B. deHaan, S. Thomas, M. Hayes, A. Cummiskey
CANADIAN JOURNAL OF PLANT SCIENCE
(2017)
Editorial Material
Agronomy
Weikai Yan, Judith Fregeau-Reid, Richard Martin, Denis Pageau, Allen Xue, Klaus Jakubinek, Brad deHaan, Steve Thomas, Matt Hayes, Dorothy Sibbit, Allan Cummiskey
CANADIAN JOURNAL OF PLANT SCIENCE
(2017)
Article
Agronomy
Weikai Yan, J. Fregeau-Reid, Denis Pageau, Richard Martin
Article
Soil Science
B. L. Ma, Z. Zheng, D. Pageau, C. Vera, J. Fregeau-Reid, A. Xue, W. Yan
NUTRIENT CYCLING IN AGROECOSYSTEMS
(2017)
Article
Agriculture, Multidisciplinary
Philippe Rochette, Chang Liang, David Pelster, Onil Bergeron, Reynald Lemke, Roland Kroebel, Douglas MacDonald, Weikai Yan, Corey Flemming
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2018)
Article
Multidisciplinary Sciences
Weikai Yan, Judith Fregeau-Reid
SCIENTIFIC REPORTS
(2018)
Article
Multidisciplinary Sciences
Naiyin Xu, Michel Fok, Jian Li, Xiaoni Yang, Weikai Yan
SCIENTIFIC REPORTS
(2017)
Article
Multidisciplinary Sciences
Weikai Yan
SCIENTIFIC REPORTS
(2019)
Article
Agronomy
Weikai Yan, Jennifer Mitchell-Fetch, Aaron Beattie, Kirby T. Nilsen, Denis Pageau, Brad DeHaan, Matthew Hayes, Nathan Mountain, Allan Cummiskey, Dan MacEachern
Summary: This study used LG biplot analysis to evaluate multiyear oat variety trials in Canada, identifying three mega-environments based on geographic regions and showing latitude as the main differentiating factor. The results suggest that oat variety trials and recommendations should be conducted based on mega-environments rather than administrative regions.
Review
Agronomy
Yan Weikai, Kirby T. Nilsen, Aaron Beattie
Summary: Mega-environment (ME) analysis is a method to understand the interaction between genotype and environment of a crop in a target region by analyzing multi-year, multi-location crop variety trial data. If repeatable patterns of genotype-by-environment interaction are found, the target region should be divided into subregions or MEs for breeding and utilizing ME-specific cultivars. This paper presents a theoretical framework of ME analysis, describes graphical tools for revealing genotype-by-environment patterns, and demonstrates the application of ME analysis in breeding ME-specific oat cultivars in Canada.
Article
Agronomy
Wei Guo, Yuanhong Chen, Yasamin Al-Rewashdy, Nicholas Foran, Bao-luo Ma, Weikai Yan, Judith Fregeau-Reid, Jinghui Liu, Changzhong Ren, Denis Pageau, Cecil Vera, Allen G. Xue
CANADIAN JOURNAL OF PLANT SCIENCE
(2018)
Article
Agronomy
Weikai Yan, Judith Fregeau-Reid, Bao-Luo Ma, Denis Pageau, Cecil Vera
Article
Agronomy
W. Yan, A. McElroy, J. Fregeau-Reid, A. Xue, K. Jakubinek, B. deHaan, S. Thomas, D. Sibbit
CANADIAN JOURNAL OF PLANT SCIENCE
(2017)
Article
Agronomy
Weikai Yan, Denis Pageau, Richard Martin, Allan Cummiskey, Barbara Blackwell