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Agronomy, Volume 9, Issue 11

November 2019 - 108 articles

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Cover Story: Accurate measurements of plant growth rates and biomass accumulation are possible using a high throughput image-based phenotyping system at the Plant Accelerator in Adelaide. This facility was used to explore the flexibility of wheat plants to manage the relationship between biomass accumulation and grain protein levels. Biomass is closely related to yield and grain protein content (GPC) is a critical quality criterion for wheat. Six Australian wheat genotypes from a range of high to low GPC were grown under low, medium and high N supply in a greenhouse. Results showed that high GPC genotypes manage grain N reserves by compromising biomass production at low N and these genotypes achieved their maximum growth rate earlier at low N compared to high N-treatment. This study indicated the importance of selection under differing N supply to optimise both yield and protein in cultivars. View this paper

Articles (108)

  • Article
  • Open Access
7 Citations
4,216 Views
16 Pages

19 November 2019

The changing climatic conditions are causing erratic rains and frequent episodes of moisture stress; these impose a great challenge to cotton productivity by negatively affecting plant physiological, biochemical and molecular processes. This situatio...

  • Article
  • Open Access
14 Citations
5,622 Views
13 Pages

Bioregulators Can Improve Biomass Production, Photosynthetic Efficiency, and Ornamental Quality of Gazania rigens L.

  • Faisal Zulfiqar,
  • Adnan Younis,
  • Zainul Abideen,
  • Alessandra Francini and
  • Antonio Ferrante

19 November 2019

Gazania rigens L. is a perennial herbaceous plant that belongs to the Asteraceae family, widely used as bedding or ornamental potted plants. The environmental and economic sustainability of ornamental production can be enhanced using environmentally...

  • Article
  • Open Access
36 Citations
5,908 Views
17 Pages

19 November 2019

Information on fruit tree canopies is important for decision making in orchard management, including irrigation, fertilization, spraying, and pruning. An unmanned aerial vehicle (UAV) imaging system was used to establish an orchard three-dimensional...

  • Article
  • Open Access
5 Citations
5,362 Views
10 Pages

18 November 2019

Buckwheat (Fagopyrum esculentum, Family Polygonaceae) is an annual pseudo-cereal crop with healing benefits. However, the genetic improvement of common buckwheat has achieved only limited success, mainly due to buckwheat’s dimorphic flowers and...

  • Article
  • Open Access
4 Citations
3,660 Views
12 Pages

CFD Models as a Tool to Analyze the Performance of the Hydraulic Agitation System of an Air-Assisted Sprayer

  • Jorge Badules,
  • Mariano Vidal,
  • Antonio Boné,
  • Emilio Gil and
  • F. Javier García-Ramos

18 November 2019

A computational fluid dynamics (CFD) model of the fluid velocities generated by the agitation system of an air-assisted sprayer was developed and validated by practical experiments in a laboratory. The model was developed considering different settin...

  • Article
  • Open Access
7 Citations
3,837 Views
13 Pages

18 November 2019

Wheat stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is one of the key diseases of economic importance in wheat worldwide. Host resistance, which follows the gene-for-gene hypothesis between the host and pathogen, has been used in...

  • Article
  • Open Access
6 Citations
5,102 Views
17 Pages

18 November 2019

Biofortified orange maize open-pollinated varieties and hybrids with higher provitamin A carotenoids (pVACs) have been released in sub-Saharan Africa and will be introduced throughout the local food systems. This study assessed the impact of steeping...

  • Article
  • Open Access
18 Citations
5,274 Views
21 Pages

Nitrogen Nutrition Optimization in Organic Greenhouse Tomato Through the Use of Legume Plants as Green Manure or Intercrops

  • Anastasios Gatsios,
  • Georgia Ntatsi,
  • Luisella Celi,
  • Daniel Said-Pullicino,
  • Anastasia Tampakaki,
  • Ioannis Giannakou and
  • Dimitrios Savvas

17 November 2019

In the present study, in addition to farmyard manure (FYM), cowpea was applied as green manure and faba bean as an intercrop in an organic greenhouse tomato crop, aiming to increase the levels of soil N. Three experiments (E1, E2, E3) were carried ou...

  • Article
  • Open Access
81 Citations
16,560 Views
14 Pages

Comparing the Grain Yields of Direct-Seeded and Transplanted Rice: A Meta-Analysis

  • Le Xu,
  • Xiaoxiao Li,
  • Xinyu Wang,
  • Dongliang Xiong and
  • Fei Wang

17 November 2019

Conventional transplanted rice (TPR) has been increasingly replaced by direct-seeded rice (DSR) because of its low water and labour requirements. Whether and how DSR can be as productive as TPR has received widespread attention. Here, a comprehensive...

  • Article
  • Open Access
32 Citations
7,276 Views
15 Pages

16 November 2019

Row crops represent the most important crops in terms of global cultivated area. Such crops include soybean, corn, wheat, rice, rapeseed, sunflower, and cotton. Row crops agriculture is generally an intensive system of farming used to obtain high yie...

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