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Agronomy, Volume 8, Issue 10

2018 October - 38 articles

Cover Story: We developed a method for the direct measurement of leaf Eh (redox potential) and pH, which revealed spatial, temporal, and genotypic variations in rice. The Eh of the last fully expanded leaf decreased after sunrise and increased with plant age. Leaf Eh was high in the youngest leaf, and its minimum occurred in the last fully expanded leaf. Leaf pH decreased from youngest to oldest leaves. These patterns and dynamics in leaf Eh-pH are in accordance with the patterns and dynamics of disease infections. Leaf Eh-pH is proposed as a novel indicator of plant stress/health. View the paper here.
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Articles (38)

  • Article
  • Open Access
1 Citations
3,123 Views
11 Pages

Impact of Genetic Background on the Leaf-Protective Enzyme Activity and Hormone Levels of Maize

  • Chunxiao Liu,
  • Zongxin Li,
  • Tieshan Liu,
  • Hui Zhang,
  • Haijun Zhao,
  • Qingcheng Wang,
  • Yonghui Shi,
  • Hongcui Dai and
  • Kaichang Liu

22 October 2018

The delay of leaf senescence, also known as the stay-green (SG) phenotype, is a trait closely associated with yield gain and resistance to many biotic/abiotic stresses. In order to increase the stress tolerance in maize, eight genetic background type...

  • Article
  • Open Access
30 Citations
6,264 Views
12 Pages

Unlocking the Genetic Diversity within A Middle-East Panel of Durum Wheat Landraces for Adaptation to Semi-arid Climate

  • Salam Y. Abu-Zaitoun,
  • Kottakota Chandrasekhar,
  • Siwar Assili,
  • Munqez J. Shtaya,
  • Rana M. Jamous,
  • Omar B. Mallah,
  • Kamal Nashef,
  • Hanan Sela,
  • Assaf Distelfeld and
  • Roi Ben-David
  • + 3 authors

21 October 2018

Drought is the major environmental factor limiting wheat production worldwide. Developing novel cultivars with greater drought tolerance is the most viable solution to ensure sustainable agricultural production and alleviating threats to food-securit...

  • Article
  • Open Access
24 Citations
6,134 Views
20 Pages

19 October 2018

Sunflower is sensitive to drought, and furthermore, sunflower hybrids display limited cytoplasmic diversity. In addition, the wild cytoplasmic sources of sunflower are not well explored for their potential to introduce drought tolerance into newly de...

  • Article
  • Open Access
24 Citations
4,851 Views
13 Pages

Threshold Tolerance of New Genotypes of Pennisetum glaucum (L.) R. Br. to Salinity and Drought

  • Kristina Toderich,
  • Elena Shuyskaya,
  • Zulfira Rakhmankulova,
  • Roman Bukarev,
  • Temur Khujanazarov,
  • Rauan Zhapaev,
  • Shoaib Ismail,
  • Shashi K. Gupta,
  • Norikazu Yamanaka and
  • Fazyl Boboev

18 October 2018

With continued population growth, increasing staple crop production is necessary. However, in dryland areas, this is negatively affected by various abiotic stresses, such as drought and salinity. The field screening of 10 improved genetic lines of pe...

  • Article
  • Open Access
24 Citations
4,676 Views
16 Pages

Seedling Growth and Transcriptional Responses to Salt Shock and Stress in Medicago sativa L., Medicago arborea L., and Their Hybrid (Alborea)

  • Eleni Tani,
  • Efi Sarri,
  • Maria Goufa,
  • Georgia Asimakopoulou,
  • Maria Psychogiou,
  • Edwin Bingham,
  • George N. Skaracis and
  • Eleni M. Abraham

18 October 2018

Salinity is a major limiting factor in crop productivity worldwide. Medicago sativa L. is an important fodder crop, broadly cultivated in different environments, and it is moderately tolerant of salinity. Medicago arborea L. is considered a stress-to...

  • Article
  • Open Access
27 Citations
6,486 Views
19 Pages

Plant Responses to an Integrated Cropping System Designed to Maintain Yield Whilst Enhancing Soil Properties and Biodiversity

  • Cathy Hawes,
  • Colin J. Alexander,
  • Graham S. Begg,
  • Pietro P. M. Iannetta,
  • Alison J. Karley,
  • Geoffrey R. Squire and
  • Mark Young

17 October 2018

The intensification of arable production since the 1950s has resulted in increases in yield but only at significant cost to the environment, raising serious concerns about long-term consequences for the sustainability of food production systems. Whil...

  • Article
  • Open Access
5 Citations
5,497 Views
15 Pages

16 October 2018

The production of food crops in controlled environment agriculture (CEA) can help mitigate food insecurity that may result from increasingly frequent and severe weather events in agricultural areas. Lighting is an absolute requirement for crop growth...

  • Article
  • Open Access
6 Citations
4,422 Views
15 Pages

16 October 2018

Yield reductions occur when corn (Zea mays L.) is continuously grown compared to when it is rotated with soybean [Glycine max (L.) Merr.]; primarily due to soil nitrogen availability, corn residue accumulation, and the weather. This study was conduct...

  • Article
  • Open Access
34 Citations
6,764 Views
13 Pages

15 October 2018

Drought stress is one of the major agronomic concerns that lead towards a sharp decline in sugarcane yield. An urgent demand to overcome drought is critical to ensure sugarcane production. Mutation breeding is one of the promising tools available to...

  • Hypothesis
  • Open Access
21 Citations
18,759 Views
19 Pages

Towards the Understanding of Important Coconut Endosperm Phenotypes: Is there an Epigenetic Control?

  • Jorge Gil C. Angeles,
  • Jickerson P. Lado,
  • Evangeline D. Pascual,
  • Cristeta A. Cueto,
  • Antonio C. Laurena and
  • Rita P. Laude

13 October 2018

The coconut is a major crop of many tropical countries, with the endosperm being one of its main products. The coconut soft-endosperm variants, the Makapuno and the Lono, are emerging as economically important. This review describes this crop, its sa...

  • Article
  • Open Access
45 Citations
6,299 Views
16 Pages

Soil Moisture Mapping Using Multi-Frequency and Multi-Coil Electromagnetic Induction Sensors on Managed Podzols

  • Emmanuel Badewa,
  • Adrian Unc,
  • Mumtaz Cheema,
  • Vanessa Kavanagh and
  • Lakshman Galagedara

10 October 2018

Precision agriculture (PA) involves the management of agricultural fields including spatial information of soil properties derived from apparent electrical conductivity (ECa) measurements. While this approach is gaining much attention in agricultural...

  • Article
  • Open Access
16 Citations
5,994 Views
19 Pages

9 October 2018

Water scarcity threatens the sustainability of irrigated agriculture in semi-arid regions, and ridge-furrow planting systems (RFPS) can be a prospective rainwater harvesting approach. In this study, we aimed to develop a promising water-saving strate...

  • Article
  • Open Access
14 Citations
4,824 Views
13 Pages

9 October 2018

Rapeseed (Brassica napus L.) with substantial lipid and oleic acid content is of great interest to rapeseed breeders. Overexpression of Glycine max transcription factors Dof4 and Dof11 increased lipid accumulation in Arabidopsis and microalgae, in ad...

  • Article
  • Open Access
28 Citations
8,557 Views
17 Pages

9 October 2018

Sugarcane (Saccharum spp. hybrid) successive planting (also called monoculture) causes serious yield losses and its management is not well studied in Histosols. Based on very few studies in other sugarcane regions, root colonization by harmful soil f...

  • Article
  • Open Access
4 Citations
4,837 Views
14 Pages

8 October 2018

Determining the intra-specific variability of response to a given herbicide is important for monitoring the possible shifts in the sensitivity of weed populations. This study describes the responses of populations of Alisma plantago-aquatica, Cyperus...

  • Article
  • Open Access
6 Citations
4,679 Views
14 Pages

The Adoption of Good Practices for Pesticides and Veterinary Drugs Use among Peasant Family Farmers of Chile

  • Francisco Lagos Susaeta,
  • Mario Maino,
  • Lisette Lapierre,
  • Pilar Oviedo,
  • Ricardo Riquelme,
  • Andrea Baeza Villarroel,
  • Marianela Quintrel,
  • Luis Pablo Hervé-Claude and
  • Javiera Cornejo

6 October 2018

Improvements and good practices (GPs) in rural environments are often developed by peasants themselves and shared among trust-based networks. The level of adoption of GPs by peasant family farmers (PFF) has been poorly studied. This paper describes t...

  • Short Note
  • Open Access
19 Citations
5,147 Views
8 Pages

5 October 2018

Tipburn is a major problem for the production of lisianthus (Eustoma grandiflorum (Raf.) Shinn.) cultivars. Relative air humidity is regarded as a key environmental factor affecting tipburn severity in commercial crops. However, there are limited stu...

  • Article
  • Open Access
34 Citations
7,148 Views
12 Pages

4 October 2018

The aims of this study were to boost growth attributes, yield, and nutrient uptake of rice in paddy fields using a combination of Bacillus pumilus strain TUAT-1 biofertilizer and different nitrogen (N) application rates in nursery boxes. Bacillus pum...

  • Article
  • Open Access
8 Citations
5,101 Views
11 Pages

Growing Degree Days during the Late Reproductive Phase Determine Spike Density and Cognate Yield Traits

  • Muhammad Umer Farooq,
  • Abdus Salam Khan,
  • Iqra Ishaaq,
  • Asim Ali Cheema,
  • Muhammad Shahzad Afzal,
  • Asif Ali and
  • Jianqing Zhu

4 October 2018

Drought has become more frequent in central Asia causing large losses in cereal yield. To surmount the existing problem, it is imperative to emphasize early maturing varietal development. However, the impact of heat units on spike morphology and its...

  • Review
  • Open Access
274 Citations
23,375 Views
20 Pages

3 October 2018

Meeting global demand of safe and healthy food for the ever-increasing population now and into the future is currently a crucial challenge. Increasing crop production by preserving environment and mitigating climate change should thus be the main goa...

  • Article
  • Open Access
155 Citations
13,058 Views
13 Pages

Zinc Oxide Nanoparticles Boosts Phenolic Compounds and Antioxidant Activity of Capsicum annuum L. during Germination

  • Josué I. García-López,
  • Francisco Zavala-García,
  • Emilio Olivares-Sáenz,
  • Ricardo H. Lira-Saldívar,
  • Enrique Díaz Barriga-Castro,
  • Norma A. Ruiz-Torres,
  • Edith Ramos-Cortez,
  • Rigoberto Vázquez-Alvarado and
  • Guillermo Niño-Medina

3 October 2018

The effects of zinc oxide nanoparticles on seed germination and seedling growth of Capsicum annuum L. were determined in this research. Total phenols content, total flavonoids, and condensed tannins, as well as 2,2-diphenyl-1-picrylhydrazyl (DPPH) an...

  • Feature Paper
  • Article
  • Open Access
39 Citations
10,847 Views
17 Pages

1 October 2018

The use of plant growth-promoting microorganisms (PGPMs) as bio-effectors (BEs) to improve the nutrient acquisition of crops has a long history. However, limited reproducibility of the expected effects still remains a major challenge for practical ap...

  • Article
  • Open Access
22 Citations
4,973 Views
15 Pages

Predicting Soil Organic Carbon and Total Nitrogen at the Farm Scale Using Quantitative Color Sensor Measurements

  • Roxanne Y. Stiglitz,
  • Elena A. Mikhailova,
  • Julia L. Sharp,
  • Christopher J. Post,
  • Mark A. Schlautman,
  • Patrick D. Gerard and
  • Michael P. Cope

1 October 2018

Sensor technology can be a reliable and inexpensive means of gathering soils data for soil health assessment at the farm scale. This study demonstrates the use of color system readings from the Nix ProTM color sensor (Nix Sensor Ltd., Hamilton, ON, C...

  • Article
  • Open Access
15 Citations
5,466 Views
9 Pages

30 September 2018

Pre-harvest sprouting (PHS) constrains wheat production worldwide by reducing both wheat grain yield and end-use quality. TaPHS1 on wheat chromosome 3AS and TaMKK3-A on chromosome 4AL are two cloned genes with major effects on PHS resistance and they...

  • Review
  • Open Access
115 Citations
13,961 Views
18 Pages

30 September 2018

Pruning is one of the most important tree fruit production activities, which is highly dependent on human labor. Skilled labor is in short supply, and the increasing cost of labor is becoming a big issue for the tree fruit industry. Meanwhile, worker...

  • Article
  • Open Access
13 Citations
8,302 Views
24 Pages

Leaf Eh and pH: A Novel Indicator of Plant Stress. Spatial, Temporal and Genotypic Variability in Rice (Oryza sativa L.)

  • Olivier Husson,
  • Alain Audebert,
  • Jaroslav Benada,
  • Brigitte Soglonou,
  • Firmin Tano,
  • Ibnou Dieng,
  • Lydia Bousset,
  • Jean-Pierre Sarthou,
  • Stephen Joseph and
  • Koichi Futakuchi
  • + 2 authors

29 September 2018

A wealth of knowledge has been published in the last decade on redox regulations in plants. However, these works remained largely at cellular and organelle levels. Simple indicators of oxidative stress at the plant level are still missing. We develop...

  • Article
  • Open Access
22 Citations
5,890 Views
13 Pages

Effect of Supplementary Light Source on Quality of Grafted Tomato Seedlings and Expression of Two Photosynthetic Genes

  • Hao Wei,
  • Jiangtao Hu,
  • Chen Liu,
  • Mengzhao Wang,
  • Jin Zhao,
  • Dong Il Kang and
  • Byoung Ryong Jeong

28 September 2018

Supplementary lighting is commonly used in high-quality seedling production. In this study, grafted tomato seedlings were grown for 10 days in a glasshouse with 16-h daily supplementary lighting at 100 μmol·m−2·s−1 PPFD (...

  • Article
  • Open Access
37 Citations
6,095 Views
14 Pages

Effect of Irrigation and Nitrogen Fertilization Strategies on Silage Corn Grown in Semi-Arid Conditions

  • Abdelaziz Nilahyane,
  • M. Anowarul Islam,
  • Abdel O. Mesbah and
  • Axel Garcia y Garcia

28 September 2018

In water-scarce regions, high yield and improved water use efficiency (WUE) of crops can be obtained if water and nitrogen (N) are properly applied. While water and N have been the subject of research worldwide, studies are needed to advance our unde...

  • Article
  • Open Access
24 Citations
6,356 Views
14 Pages

26 September 2018

Plant glutathione peroxidase (GPX) is an important antioxidant enzyme to maintain H2O2 homeostasis and regulate plant response to abiotic stress. In this paper, we present the first report of a genome-wide identification of GPX genes in watermelon. A...

  • Article
  • Open Access
79 Citations
10,003 Views
16 Pages

25 September 2018

The improvement and development of saline–alkali land is of great significance for promoting food production and sustainable development. It is necessary to study the mechanism of saline–alkaline tolerance and breed saline–alkaline...

  • Article
  • Open Access
11 Citations
5,664 Views
13 Pages

24 September 2018

Synchrony between soil mineral nitrogen (N) supply and crop N demand is important for optimal plant growth. Excessively wet conditions expose poorly drained soils to an increased potential of N loss and reduced N use efficiency. A two-year experiment...

  • Article
  • Open Access
41 Citations
4,475 Views
18 Pages

Biochars Improve Nutrient Phyto-Availability of Hawai’i’s Highly Weathered Soils

  • Arnoldus Klau Berek,
  • Nguyen V. Hue,
  • Theodore J. K. Radovich and
  • Amjad A. Ahmad

23 September 2018

Highly weathered soils in Hawai’i are low in fertility, negatively affecting plant growth. The potential of biochar for improving soil nutrient availability to crops is promising, and prompts this study. Two biochars at 2% (w/w) made of lac tre...

  • Article
  • Open Access
19 Citations
5,206 Views
9 Pages

21 September 2018

Intercropping of forage grasses and legumes can increase forage productivity and nutritive value; however, intercropping of corn with warm-season forages has not yet been studied in southeast U.S., thus requiring more information. The purpose of this...

  • Article
  • Open Access
8 Citations
4,331 Views
20 Pages

21 September 2018

Our study examined how faba beans (Vicia faba L.) grown in soil conditions that simulate common traffic management regimes and water availabilities displayed alterations to their physiological state. Physiological changes were tracked through plant a...

  • Article
  • Open Access
37 Citations
8,011 Views
17 Pages

Evaluating Two Crop Circle Active Canopy Sensors for In-Season Diagnosis of Winter Wheat Nitrogen Status

  • Qiang Cao,
  • Yuxin Miao,
  • Jianning Shen,
  • Fei Yuan,
  • Shanshan Cheng and
  • Zhenling Cui

21 September 2018

Active crop canopy sensors can be used for non-destructive real-time diagnosis of crop nitrogen (N) status and guiding in-season N management. However, limited studies have compared the performances of two commercially available sensors with three di...

  • Article
  • Open Access
41 Citations
7,007 Views
17 Pages

Mitigation Potential and Yield-Scaled Global Warming Potential of Early-Season Drainage from a Rice Paddy in Tamil Nadu, India

  • Aung Zaw Oo,
  • Shigeto Sudo,
  • Kazuyuki Inubushi,
  • Umamageswari Chellappan,
  • Akinori Yamamoto,
  • Keitsuke Ono,
  • Masayoshi Mano,
  • Sachiko Hayashida,
  • Vanitha Koothan and
  • Ravi Venkatachalam
  • + 4 authors

21 September 2018

Water-intensive systems of rice cultivation are facing major challenges to increase rice grain yield under conditions of water scarcity while also reducing greenhouse gas (GHG) emissions. The adoption of effective irrigation strategies in the paddy r...

  • Article
  • Open Access
94 Citations
12,329 Views
19 Pages

20 September 2018

Due to its highly nutritive compounds, the demand for quinoa, a small grain originating from the Andean region of South America, increased rapidly over the last years. However, the main producing countries Bolivia and Peru cannot cover the growing de...

  • Article
  • Open Access
8 Citations
3,981 Views
18 Pages

Selection of Appropriate Spatial Resolution for the Meteorological Data for Regional Winter Wheat Potential Productivity Simulation in China Based on WheatGrow Model

  • Xiaohu Zhang,
  • Hao Xu,
  • Li Jiang,
  • Jianqing Zhao,
  • Wenjun Zuo,
  • Xiaolei Qiu,
  • Yongchao Tian,
  • Weixing Cao and
  • Yan Zhu

20 September 2018

The crop model based on physiology and ecology has been widely applied to the simulation of regional potential productivity. By determining the appropriate spatial resolution of meteorological data required for model simulation for different regions,...

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Agronomy - ISSN 2073-4395