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Published online 27 June 2024

CP24064Does tillering affect the grain yield of maize (Zea mays)? A quantitative review

Diego Hernán Rotili , José Roberto Micheloud, Fernando Ross, Leonor Gabriela Abeledo and Gustavo Ángel Maddonni

 

Tillering (equivalent to branching in broad leaf species) is promoted by management practices adopted in marginal environments for maize production. Farmers generally consider tillering to be counterproductive for grain yield in maize (Zea mays), but we found that across a wide range of environments, tillering is generally positive or indifferent for grain yield determination. Therefore, farmers should not consider tillering as a conditioning trait when selecting maize hybrids for cultivating this crop in different environments.

CP24064 Abstract  | PDF (915 KB) - $35.00   | CP24064Supplementary Material (1.2 MB)

Published online 25 June 2024

CP23266Effects of heading date and Epichloë endophyte on persistence of diploid perennial ryegrass (Lolium perenne). 1. Heading date

Katherine N. Tozer , David E. Hume, Catherine Cameron, Rose Greenfield, Tracy Dale, Wade J. Mace , Tony Craven and Marty J. Faville

 

We determined the impact of heading date on persistence of perennial ryegrass cultivars infected with a range of endophytes, in a plot study grazed by cattle. The two late-heading cultivars were more persistent than the two mid-heading cultivars, with higher yield, nutritive value, perennial ryegrass content in pasture dry matter, ground cover and tiller density, although persistence declined over 4 years for all cultivars.

CP23266 Abstract  |  CP23266 Full Text  | CP23266PDF (676 KB)  | CP23266Supplementary Material (1.4 MB)   Open Access Article

Published online 25 June 2024

CP24101Effects of heading date and Epichloë endophyte on persistence of diploid perennial ryegrass (Lolium perenne). 2. Endophyte strain and interactions with heading date

Katherine N. Tozer , David E. Hume, Catherine Cameron, Rose Greenfield, Tracy Dale, Wade J. Mace , Tony Craven and Marty J. Faville

 

We determined the impact of endophyte strain (standard toxic endophyte, selected strains nea2/6 and AR37), on the persistence of four perennial ryegrass cultivars. Standard endophyte resulted in greater persistence than the selected endophytes, with higher ryegrass ground cover percentage and content in pasture dry matter by the end of the study, and higher herbage yields in autumn. Persistence declined over 4 years for all cultivars, regardless of endophyte.

CP24101 Abstract  |  CP24101 Full Text  | CP24101PDF (749 KB)  | CP24101Supplementary Material (1.3 MB)   Open Access Article

Published online 19 June 2024

CP24053A novel Leifsonia xyli subsp. xyli quantitative LAMP-based diagnostic correlated with sugarcane ratoon stunting disease rating

Moutoshi Chakraborty , Shamsul A. Bhuiyan , Simon Strachan , Sithi Saha, Rabbee G. Mahmudunnabi , Nam-Trung Nguyen , Muhammad J. A. Shiddiky and Rebecca Ford

 

Tackling with ratoon stunting disease in sugarcane is crucial for global sugar production. We developed a simple method that provides rapid and accurate way to measure levels of the bacteria that cause RSD in sugarcane plants, aiding farmers in effectively measuring disease severity. This advancement is important for safeguarding sugarcane crops, ensuring stable sugar production, and supporting economies worldwide.

CP24053 Abstract  |  CP24053 Full Text  | CP24053PDF (1.3 MB)  | CP24053Supplementary Material (1.7 MB)   Open Access Article

Published online 30 May 2024

CP23332Accumulation of organic carbon was limited to the surface of a duplex soil in the mixed farming zone of south-eastern Australia

Mark K. Conyers , Guangdi D. Li , Graeme J. Poile, Albert Oates, Keith R. Helyar and Maheswaran Rohan

 

Accumulation of soil organic carbon is considered beneficial to both farm productivity and the environment. Although conservation farming might make little direct contribution to soil carbon stocks, it is likely to be essential for the retention of soil carbon stores in duplex soils. Conversely, the co-retained nitrogen might have more value than the carbon stocks.

CP23332 Abstract  |  CP23332 Full Text  | CP23332PDF (446 KB)

Published online 21 May 2024

CP23307Potential of increasing yield of spring Brassica napus canola by using Brassica rapa gene pool with emphasis on yellow sarson

Berisso Kebede, Gholamreza Habibi and Habibur Rahman

 

To improve yield in canola, a wider gene pool is needed. We demonstrated that seed yield can be improved in inbred as well as hybrid canola using genes from the genetically distinct oilseed yellow sarson, a related species from Asia. The knowledge gained and germplasm developed from this research can be used by breeders and researchers to develop improved canola cultivars.

CP23307 Abstract  | PDF (1.7 MB) - $35.00   | CP23307Supplementary Material (3 MB)

Published online 21 May 2024

CP23320Rain and potential evapotranspiration are the main drivers of yield for wheat and barley in southern Australia: insights from 12 years of National Variety Trials

Edward G. Barrett-Lennard , Nicholas George , Mario D’Antuono, Karen W. Holmes and Phillip R. Ward

 

Farmers value simple rules of thumb for predicting crop yields. Using 12 years of National Variety Trial data, we discovered that variation in yield of wheat and barley across southern Australia is most strongly correlated with variation in aridity index, the ratio of seasonal rainfall to seasonal potential evapotranspiration. Our finding reinforces the importance of water as the primary driver dictating grain yield in southern Australia.

CP23320 Abstract  |  CP23320 Full Text  | CP23320PDF (1.5 MB)  | CP23320Supplementary Material (1.7 MB)   Open Access Article

Published online 15 May 2024

CP24043Forage accumulation and nutritive value in extensive, intensive, and integrated pasture-based beef cattle production systems

Rolando Pasquini Neto , Althieres José Furtado, Gabriele Voltareli da Silva, Annelise Aila Gomes Lobo, Adibe Luiz Abdalla Filho, Henrique Bauab Brunetti , Cristiam Bosi , André de Faria Pedroso, José Ricardo Macedo Pezzopane, Patrícia Perondi Anchão Oliveira and Paulo Henrique Mazza Rodrigues

 

A challenge for livestock farmers is to improve production and nutritive value of forage grasses through management strategies. This study evaluated the impact of management on productive and nutritive traits of forages during two experimental years on five pasture-based production systems. More intensified systems with proper management allowed better characteristics than degraded pasture, ameliorating the effects of seasonality and improving tropical grasses in pasture-based livestock production systems.

CP24043 Abstract  | PDF (2 MB) - $35.00   | CP24043Supplementary Material (1.6 MB)

Published online 13 May 2024

CP23117Cropping calendar, agroclimatic and agroecological zoning for rainfed maize (Zea mays L.) under different rainfall scenarios in a semi-arid region of Brazil

Danilo Batista Nogueira, Alfredo Mendonça de Sousa, Alexsandro Oliveira da Silva , Bruno Ricardo Silva Costa, Rafaela da Silva Arruda and Fernando Ferrari Putti

 

This study aimed to define the optimum cropping calendar and the agroclimatic and agroecological zones for rainfed maize (Zea mays L.) across Ceará state, situated within the Brazilian semi-arid region, assuming different rainfall scenarios: dry, regular, and rainy. The agroclimatic zoning was defined trough the crop water balance results. Our findings demonstrated that rainfed maize cultivated under the semi-arid climate of Ceará state is viable in rainy conditions, partially restricted in regular years, and not recommended in dry years.

CP23117 Abstract  | PDF (3.1 MB) - $35.00 

Published online 13 May 2024

CP23125Evaluation of strategies to improve the quality of Tanzania grass (Megathyrsus maximum) silage with increasing levels of mata-pasto hay (Senna obtusifolia)

Rosane C. Rodrigues , Bruno Eduardo Caxias Miranda, Edson Mauro Santos, Francisco Naysson de Sousa Santos , Eduarda Castro Silva, Dilier Olivera-Viciedo, Anderson de Moura Zanine , Raphael Ramos Silva, Antonio Marcos da Penha Santos, Izakiel Reis Marinho and Maciel Costa Teixeira

 

The seasonality between the rainy and dry seasons is a challenge for tropical agriculture. This study evaluated different forms of ensiling Tanzania grass (Megathyrsus maximum) and forest pasture hay (FPH) aiming to improve the conservation and nutritional value of silages. Results showed that the use of 30% FPH improved the fermentative processes and the nutritional value of the silages. This strategy can reduce the negative impacts of weeds on pastures, although further research is needed for complementary additives.

CP23125 Abstract  | PDF (438 KB) - $35.00 

Published online 09 May 2024

CP23170Zinc interception and absorption in wheat spikes contribute significantly to grain zinc biofortification

Naiyue Hu, Zhiqiang Gao, Wanqing Zhang, Chenghang Du, Yinghua Zhang , Zhigan Zhao and Zhimin Wang

 

Understanding of interception, absorption and translocation of exogenous Zn in wheat is important to the goal of improving biofortification efficacy; however, knowledge gaps exist with regard to absorption and translocation of exogenous Zn by wheat and the role of spikes in biofortification. Results show that spikes are critical in intercepting and absorbing exogenous Zn, and translocation of exogenous Zn is dependent on application stage. The outcomes improve our knowledge of how wheat plants intercept, absorb and translocate Zn.

CP23170 Abstract  | PDF (1.3 MB) - $35.00 

Published online 01 May 2024

CP23324Developmental patterns of flowers and pods and the effect on seed number in French serradella (Ornithopus sativus) and yellow serradella (Ornithopus compressus) cultivars

Laura E. Goward , Rebecca E. Haling , Rowan W. Smith , Beth Penrose and Richard J. Simpson

 

To ensure the continued existence of annual legume species in temperate regions, it is essential to understand the factors contributing to successful seed production; for instance, certain cultivars of French and yellow serradella occasionally flower at suboptimal times, potentially leading to reduced seed production. This study uncovered differences in how these cultivars produce flowers, pods and seeds. Some showed the ability to adapt to early flower loss, suggesting that selective breeding could improve seed yield resilience.

CP23324 Abstract  |  CP23324 Full Text  | CP23324PDF (677 KB)  | CP23324Supplementary Material (1.3 MB)   Open Access Article

Published online 30 April 2024

CP23126Genomic prediction for targeted populations of environments in oat (Avena sativa)

Pablo Sandro, Madhav Bhatta, Alisha Bower, Sarah Carlson, Jean-Luc Jannink, David J. Waring , Clay Birkett, Kevin Smith, Jochum Wiersma, Melanie Caffe, Jonathan Kleinjan, Michael S. McMullen, Lydia English and Lucia Gutierrez

 

Rankings of genotypic performance may change from one environment to the next, creating genotype × environment interaction (GEI), which can impact genomic prediction and complicate identification of superior genotypes. We compared strategies for predicting the performance of individuals in the presence of GEI. The results provide useful tools for the optimisation of training populations and testing environments for the prediction of individuals in the targeted populations of environments.

CP23126 Abstract  |  CP23126 Full Text  | CP23126PDF (1.3 MB)  | CP23126Supplementary Material (1 MB)   Open Access Article

Published online 08 April 2024

CP23078Identification of superior genotypes for leaf architecture traits in Sorghum bicolor through GGE biplot analysis

Runfeng Wang , Yingxing Zhao, Hailian Wang , Erying Chen, Feifei Li, Shaoming Huang , Ling Qin, Yanbing Yang, Yan’an Guan, Bin Liu and Huawen Zhang

 

Grain sorghum is a food source for people in semi-arid regions; however, its productivity is compromised by its inefficient leaf architecture. Aiming to improve sorghum productivity, the research focused on evaluation of leaf architectural traits and identification of ideotypes with outstanding leaf architecture. Through multi-environment trials, an ideal genotype was selected for best leaf architecture performance, which will be useful as the parental line to optimise sorghum leaf architecture in a breeding program.

CP23078 Abstract  | PDF (2 MB) - $35.00   | CP23078Supplementary Material (929 KB)

Published online 04 April 2024

CP23199Genetic variation in growth, ionic accumulation and salt tolerance indices under long-term salt stress in halophytic Tunisian sea barley (Hordeum marinum ssp. marinum)

W. Saoudi , W. Taamalli, M. Badri, O. Z. Talbi and C. Abdelly

 

Soil salinity adversely affects plant growth and causes considerable losses in cereal crops. In this study, genetic variation in salinity tolerance was evaluated in sea barley (Hordeum marinum ssp. marinum). Based on plant growth-related traits, mineral nutrition and salt stress indices, lines with high yield under stress and non-stress conditions, or showing a small yield loss under salinity constraints, were identified. These lines will be useful for future breeding programs towards salinity tolerance in cereal crops.

CP23199 Abstract  | PDF (1.3 MB) - $35.00   | CP23199Supplementary Material (1.4 MB)

More content

Just Accepted

These articles have been peer reviewed and accepted for publication. They are still in production and have not been edited, so may differ from the final published form.

CP24064, Accepted 07 June 2024

Does tillering affect the grain yield of maize? A quantitative review

Diego Rotili , José Micheloud, Fernando Ross, L Abeledo and Gustavo Maddonni

 

CP24064Abstract

CP24053, Accepted 28 May 2024

A novel Leifsonia xyli subsp. xyli quantitative LAMP-based diagnostic correlated with sugarcane ratoon stunting disease rating

Moutoshi Chakraborty , Shamsul Bhuiyan , Simon Strachan, Sithi Saha, Rabbee Mahmudunnabi, Nam-Trung Nguyen, Muhammad Shiddiky and Rebecca Ford

 

CP24053Abstract

CP23266, Accepted 27 May 2024

Effect of heading date and Epichloë endophyte strain on diploid perennial ryegrass (Lolium perenne) persistence. 1. Heading date effects

Katherine Tozer , David Hume, Catherine Cameron, Rose Greenfield, Tracy Dale, Wade Mace , Tony Craven and Marty Faville

 

CP23266Abstract

CP24101, Accepted 27 May 2024

Effect of heading date and Epichloë endophyte strain on diploid perennial ryegrass (Lolium perenne) persistence. 2. Endophyte effects

Katherine Tozer , David Hume, Catherine Cameron, Rose Greenfield, Tracy Dale, Wade Mace , Tony Craven and Marty Faville

 

CP24101Abstract

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