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Agronomy, Volume 11, Issue 12

December 2021 - 228 articles

Cover Story: Tetraploid plants are very useful in breeding for improvements in fruit quality and enhancement of stress tolerances. Satsuma mandarin (Citrus unshiu Marcow.) is an economically important fruit crop in Japan; however, global warming is negatively affecting the fruit quality of this species in recent years, resulting in problems such as coloring disorder, rind puffing and bland taste. In this study, a morphological investigation and a reproductive assessment of autotetraploid Satsuma mandarin were carried out. Compared to the diploid, the tetraploid had significantly thick and round leaves, large flowers and pollen grains. The tetraploid had a higher content of carotenoids in the flavedo than diploid, and the rind color was much better. Pollen fertility of the tetraploid was high compared with the diploid, so the triploid progenies could be obtained in crossing with diploid cultivars. View this paper
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Articles (228)

  • Review
  • Open Access
38 Citations
14,114 Views
9 Pages

Coffee Leaf Rust (Hemileia vastatrix) in Kenya—A Review

  • Elijah Gichuru,
  • Getrude Alwora,
  • James Gimase and
  • Cecilia Kathurima

20 December 2021

Coffee is one of the most important cash crops and beverages in the world. Production of coffee is limited by many factors, which include insect pests and diseases, among others. One of the most devastating coffee diseases in many coffee-producing co...

  • Article
  • Open Access
7 Citations
3,755 Views
14 Pages

20 December 2021

Optimal weather conditions are necessary for the proper course of the flowering process and high activity of pollinators, which is the most important factor affecting pollination. Because weather conditions do not always favour effective pollination...

  • Article
  • Open Access
6 Citations
3,828 Views
19 Pages

Improving Nitrogen Status Estimation in Malting Barley Based on Hyperspectral Reflectance and Artificial Neural Networks

  • Karel Klem,
  • Jan Křen,
  • Ján Šimor,
  • Daniel Kováč,
  • Petr Holub,
  • Petr Míša,
  • Ilona Svobodová,
  • Vojtěch Lukas,
  • Petr Lukeš and
  • Hana Findurová
  • + 1 author

20 December 2021

Malting barley requires sensitive methods for N status estimation during the vegetation period, as inadequate N nutrition can significantly limit yield formation, while overfertilization often leads to an increase in grain protein content above the l...

  • Article
  • Open Access
1 Citations
3,836 Views
20 Pages

20 December 2021

Economic losses and environmental hazards are meaningful problems of emitted ammonia induced by extensive use of synthetic nitrogen fertilizers. The concept presented as yield scaled fertilizer productivity (YSFP) in our meta-analysis in addition to...

  • Article
  • Open Access
3 Citations
2,966 Views
25 Pages

Influence of Geometry in the Behavior of Disc-Shaped Mechanical Energy Absorbers for Agricultural Tractors

  • Juan-Ignacio Latorre-Biel,
  • Amaya Pérez-Ezcurdia,
  • Marta Benito-Amurrio and
  • José Ramón Alfaro-López

20 December 2021

Disc-shaped mechanical energy absorbers (MEAs), in combination with rollover protection structures (ROPSs), may contribute to the prevention of the infringement of the safety zone and the collapse of the ROPS in case of the overturn of an agricultura...

  • Article
  • Open Access
7 Citations
4,096 Views
19 Pages

Towards Sustainable Dairy Production in Argentina: Evaluating Nutrient and CO2 Release from Raw and Processed Farm Waste

  • Gastón A. Iocoli,
  • Luciano Orden,
  • Fernando M. López,
  • Marisa A. Gómez,
  • María B. Villamil and
  • María C. Zabaloy

20 December 2021

Mineralization studies are the first step in determining the usefulness of an amendment such as fertilizer, and are essential to creating guidelines for dairy waste management to help producers make informed decisions. Our goal was to assess the effe...

  • Article
  • Open Access
3 Citations
3,837 Views
12 Pages

Analysis of the Content Values of Sweet Maize (Zea mays L. Convar Saccharata Koern) in Precision Farming

  • Cintia Demeter,
  • János Nagy,
  • László Huzsvai,
  • Annabella Zelenák,
  • Atala Szabó and
  • Adrienn Széles

20 December 2021

The global precision farming area is constantly increasing, and precision sweet maize production developed the most. Sweet maize yield is above average in precision farming. Additionally, its role in healthy nutrition is becoming increasingly importa...

  • Article
  • Open Access
18 Citations
6,018 Views
10 Pages

19 December 2021

As natural plant growth stimulators, amino acids are widely used to improve crop yield and quality. There are numerous studies documenting the influence of amino acids on plants, which is not always positive. This study was conducted to determine the...

  • Article
  • Open Access
3 Citations
4,303 Views
9 Pages

Evaluation of Crossability between Nicotiana benthamiana and Nicotiana excelsior

  • Takahiro Tezuka,
  • Naoto Kitamura,
  • Masanori Yanase and
  • Toshinobu Morikawa

19 December 2021

Wild tobacco species in the Nicotiana section Suaveolentes are promising genetic resources to introduce their disease resistance to cultivated tobacco, Nicotiana tabacum. However, hybrid lethality is observed in hybrid seedlings from crosses between...

  • Article
  • Open Access
16 Citations
4,644 Views
17 Pages

19 December 2021

To expand the gene pool and introduce new traits to the tetraploid cultivars of Vaccinium corymbosum from wild diploid species V. myrtillus, it is necessary to double the chromosome number in diploid species in order to overcome a post zygotic crossi...

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Agronomy - ISSN 2073-4395