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You searched for: Subject term developmental stages Remove constraint Subject term: developmental stages Subject term corn Remove constraint Subject term: corn Text availability Citation in PubAg Remove constraint Text availability: Citation in PubAg
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1. 15N-Labelled Single-treatment Fertility Experiments

Author:
M. Fried; R. J. Soper; H. Broeshart
Source:
Agronomy journal 1975 v.67 no.3 pp. 393-396
ISSN:
0002-1962
Subject:
Oryza sativa; Triticum aestivum; Zea mays; ammonium; ammonium nitrogen; corn; developmental stages; fertilizer application; field experimentation; isotope labeling; nitrates; nitrogen fertilizers; nutrient uptake; quantitative analysis; rice; soil; stable isotopes; wheat
Abstract:
... There is only one way of measuring directly the uptake of nutrient from applied fertilizer as affected by timing, placement, fertilizer source, and environmental interactions. This is by isotope labelling of the fertilizer. The purpose of the present study is not only to demonstrate the effectiveness of this technique in field experiments, but to extend the technique to the direct measurement of t ...
DOI:
10.2134/agronj1975.00021962006700030028x

2. 3D model processing for high throughput phenotype extraction – the case of corn

Author:
Dimitris Zermas; Vassilios Morellas; David Mulla; Nikos Papanikolopoulos
Source:
Computers and electronics in agriculture 2020 v.172 pp. 105047
ISSN:
0168-1699
Subject:
Zea mays; automation; cameras; canopy; corn; corn stover; crops; data collection; developmental stages; industry; leaf area index; leaf length; leaves; models; phenotype; plant height; statistics; stems; unmanned aerial vehicles
Abstract:
... High resolution RGB imagery collected using a UAV and a handheld camera was used with structure from motion to reconstruct 3D canopies of small groups of corn plants. A methodology for the automated extraction of phenotypic characteristics of individual plants is presented based on these 3D reconstructed canopies. Such information can enhance the evaluation of crop traits and provide accurate and ...
DOI:
10.1016/j.compag.2019.105047

3. Ability for In-Season Correction of Nitrogen Deficiency in Corn Using Chlorophyll Meters

Author:
Gary E. Varvel; James S. Schepers; Dennis D. Francis
Source:
Soil Science Society of America journal 1997 v.61 no.4 pp. 1233-1239
ISSN:
0361-5995
Subject:
Zea mays; chlorophyll; corn; crops; developmental stages; fertilizer application; fertilizer requirements; groundwater; groundwater contamination; irrigated farming; irrigation; leaching; monitoring; nitrate nitrogen; nitrogen; nitrogen fertilizers; nutrient use efficiency; soil; United States
Abstract:
... Nitrate-nitrogen contamination of groundwater continues to be a major concern throughout the USA. These concerns are greatest in areas where groundwater is close to the soil surface and in areas that have irrigated crops with large N fertilizer requirements. Specific objectives of this work were to use the chlorophyll meter to determine in-season crop N status and to correct in-season N deficienci ...
DOI:
10.2136/sssaj1997.03615995006100040032x

4. Abscisic acid is involved in several processes associated with root system architecture in maize

Author:
Iván Friero; M. Victoria Alarcón; Lucía Gordillo; Julio Salguero
Source:
Acta physiologiae plantarum 2022 v.44 no.3 pp. 28
ISSN:
0137-5881
Subject:
abscisic acid; corn; developmental stages; lateral roots; naphthaleneacetic acid; root primordia; root systems
Abstract:
... Studies concerning abscisic acid (ABA) involvement in root system architecture (RSA) and the interaction of ABA with auxin have reported contrasting results. In this study, the effects of exogenous ABA application and withdrawal as well as a combined treatment of ABA with the synthetic auxin 1-naphthaleneacetic acid (NAA) were thoroughly investigated in maize. The results showed that ABA reduced b ...
DOI:
10.1007/s11738-022-03360-3

5. Accounting for phenology in maize yield prediction using remotely sensed dry dekads

Author:
Farai Kuri; Amon Murwira; Karin S. Murwira; Mhosisi Masocha
Source:
Geocarto international 2018 v.33 no.7 pp. 723-736
ISSN:
1752-0762
Subject:
corn; crop yield; developmental stages; drought; growing season; livelihood; normalized difference vegetation index; phenology; prediction; rainfed farming; remote sensing; risk; time series analysis; vegetation; vegetative growth; yield forecasting; Sub-Saharan Africa
Abstract:
... Rain-fed agriculture is threatened by an increased frequency of droughts worldwide thereby putting millions of livelihoods at risk especially in sub-Saharan Africa. This makes drought preparedness critical. In this study, we sought to establish whether maize yield can be predicted using the number of dry dekads that occur at specific maize growth stages for purposes of yield early warning. The dry ...
DOI:
10.1080/10106049.2017.1299798

6. Accumulation of Cd, Cu and Zn in shoots of maize (Zea mays L.) exposed to 0.8 or 20 nM Cd during vegetative growth and the relation with xylem sap composition

Author:
C. Nguyen; A. J. Soulier; P. Masson; S. Bussière; J. Y. Cornu
Source:
Environmental science and pollution research international 2016 v.23 no.4 pp. 3152-3164
ISSN:
0944-1344
Subject:
Zea mays; agricultural soils; cadmium; copper; corn; developmental stages; hormesis; nutrient solutions; roots; sap; shoots; toxicity; vegetative growth; xylem; zinc
Abstract:
... This work focuses on the exposure of maize plants to nanomolar concentrations of Cd, which is relevant for agricultural soils cropped with food and feed plants. Maize plants were cultivated in nutrient solution at 0.8 or 20 nM Cd during the vegetative growth stages. No significant hormesis or toxic effects of Cd were observed on maize growth, but a decrease in the allocation of Cd to shoots betwee ...
DOI:
10.1007/s11356-015-5782-y

7. Accumulation of reactive oxygen species in arbuscular mycorrhizal roots

Author:
Fester, T.; Hause, G.
Source:
Mycorrhiza 2005 v.15 no.5 pp. 373-379
ISSN:
0940-6360
Subject:
Zea mays; vesicular arbuscular mycorrhizae; biosynthesis; oxidative stress; hydrogen peroxide; developmental stages; corn; hyphae; Nicotiana tabacum; Rhizophagus intraradices; ultrastructure; Medicago truncatula; roots; tobacco
DOI:
10.1007/s00572-005-0363-4
PubMed:
15875223

8. Accumulation, partitioning, and bioavailability of micronutrients in summer maize as affected by phosphorus supply

Author:
Wei Zhang; Dun-Yi Liu; Chao Li; Xin-Ping Chen; Chun-Qin Zou
Source:
European journal of agronomy 2017 v.86 pp. 48-59
ISSN:
1161-0301
Subject:
bioavailability; copper; corn; developmental stages; fertilizer rates; field experimentation; grain yield; iron; manganese; mineral content; nutritive value; phosphorus; phosphorus fertilizers; plant organs; shoots; small cereal grains; summer; tissues; zinc
Abstract:
... Decreased micronutrient concentration in cereal grains caused by excessive application of phosphorus (P) fertilizer may contribute to reduce their nutritional quality. To help correct this problem in maize grain, a 3-year field experiment was conducted to determine how P application rate affects micronutrient partitioning in maize shoots and other plant organs and micronutrient bioavailability in ...
DOI:
10.1016/j.eja.2017.03.005

9. Accuracy of NDVI-derived corn yield predictions is impacted by time of sensing

Author:
Angel Maresma; Lindsay Chamberlain; Aristotelis Tagarakis; Tulsi Kharel; Greg Godwin; Karl J. Czymmek; Elson Shields; Quirine M. Ketterings
Source:
Computers and electronics in agriculture 2020 v.169 pp. 105236
ISSN:
0168-1699
Subject:
Zea mays; cameras; corn; corn silage; crop yield; decision making; developmental stages; dew; flight; normalized difference vegetation index; unmanned aerial vehicles; water stress; yield forecasting; New York
Abstract:
... Normalized difference vegetation index (NDVI) data derived from cameras mounted on unmanned aerial vehicles (UAVs) or from tractor-mounted sensors have the potential to aid in quick and accurate decision making for fertility management of corn (Zea mays L.). However, timing of sensing can impact the accuracy of yield predictions and hence nutrient need assessment. In this study the accuracy of yie ...
DOI:
10.1016/j.compag.2020.105236

10. Actual evapotranspiration and dual crop coefficients for dry-seeded rice and hybrid maize grown with overhead sprinkler irrigation

Author:
Ma. Carmelita R. Alberto; James R. Quilty; Roland J. Buresh; Reiner Wassmann; Sam Haidar; Teodoro Q. Correa; Joseph M. Sandro
Source:
Agricultural water management 2014 v.136 pp. 1-12
ISSN:
0378-3774
Subject:
corn; crop coefficient; crop production; crops; developmental stages; dry season; eddy covariance; evaporation; evapotranspiration; growing season; hybrids; irrigation scheduling; irrigation water; rice; sprinkler irrigation; transpiration
Abstract:
... In lieu of the decreasing availability of water for irrigated rice, we examined two alternatives to traditional rice cultivation on puddled and saturated soil–maize and dry-seeded rice production grown with an overhead sprinkler irrigation system. We characterized the inter-seasonal daily variations of actual crop evapotranspiration (ET), transpiration (T), and evaporation (E) using the eddy covar ...
DOI:
10.1016/j.agwat.2014.01.005

11. Adaptation to Early-Season Soil Waterlogging Using Different Nitrogen Fertilizer Practices and Corn Hybrids

Author:
Gurpreet Kaur; Kelly A. Nelson; Peter P. Motavalli; Gurbir Singh
Source:
Agronomy 2020 v.10 no.3 pp. -
ISSN:
2073-4395
Subject:
Zea mays; claypan soils; climate change; corn; developmental stages; environmental factors; fertilizer rates; flooded conditions; flooding tolerance; grain yield; hybrids; leaves; nitrogen; polymer-coated urea; rain; silage; spring; urea; Midwestern United States
Abstract:
... Excessive rainfall occurring in the early spring season in the Midwestern United States result in waterlogged soils contributing to corn production losses. The objective of our study is to evaluate the impact of soil waterlogging [non-waterlogged or waterlogged for 7 days when corn was at V3 growth stage (corn plant having three fully developed leaves with collar visible)], different pre-plant nit ...
DOI:
10.3390/agronomy10030378

12. Adding value to field-based agronomic research through climate risk assessment: a case study of maize production in Kitale, Kenya

Author:
Dixit, P.N.; Cooper, P.J.M.; Dimes, J.; Rao, K.P.
Source:
Experimental agriculture 2011 v.47 no.2 pp. 317-338
ISSN:
0014-4797
Subject:
developmental stages; crop yield; seasonal variation; plant response; risk; meteorological data; weed control; production technology; rainfed farming; risk assessment; planting; climate models; case studies; climate; simulation models; water management; corn; soil water; temperature; nitrogen; farmers; fertilizers; rain; food production; crops; Kenya
Abstract:
... In sub-Saharan Africa (SSA), rainfed agriculture is the dominant source of food production. Over the past 50 years much agronomic crop research has been undertaken, and the results of such work are used in formulating recommendations for farmers. However, since rainfall is highly variable across seasons the outcomes of such research will depend upon the rainfall characteristics of the seasons duri ...
DOI:
10.1017/S0014479710000773

13. Agricultural Management Affects Root-Associated Microbiome Recruitment Over Maize Development

Author:
Cassandra J. Wattenburger; Larry J. Halverson; Kirsten S. Hofmockel
Source:
Phytobiomes journal 2019 v.3 no.4 pp. 260-272
ISSN:
2471-2906
Subject:
Acidobacteria; Verrucomicrobia; bacteria; community structure; corn; cropping systems; developmental stages; fungal communities; fungi; microbiome; nitrogen; nutrient availability; organic matter; phytobiome; plant nitrogen content; rhizoplane; soil; vegetative growth
Abstract:
... Diversified cropping systems provide yield benefits that may result from enhanced nutrient availability via the root microbiome. We hypothesized that root-associated microbial communities in diversified and conventional systems would differ most during high plant nitrogen demand, reflecting microbiome-derived benefits, and that these effects would be greatest nearest the root. We compared maize bu ...
DOI:
10.1094/PBIOMES-03-19-0016-R

14. Agronomic Responses of Corn to Stand Reduction at Vegetative Growth Stages

Author:
Jeffrey A. Coulter; Emerson D. Nafziger; Lori J. Abendroth; Peter R. Thomison; Roger W. Elmore; Mark E. Zarnstorff
Source:
Agronomy journal 2011 v.103 no.3 pp. 577-583
ISSN:
0002-1962
Subject:
Zea mays; corn; developmental stages; grain yield; hail; leaves; vegetative growth; Illinois; Iowa; Ohio
Abstract:
... The current standard for assessing corn (Zea mays L.) yield loss due to stand reduction from hail assumes that remaining plants lose the ability to compensate for lost plants by mid-vegetative growth. From 2006 to 2009, experiments were conducted over 12 site-years in Illinois, Iowa, and Ohio to determine the agronomic responses of corn to stand reduction at the 5, 8, 11, and 15 leaf collar stages ...
DOI:
10.2134/agronj2010.0405

15. Agronomic and Environmental Soil Phosphorus Testing in Soils Receiving Liquid Swine Manure

Author:
A. M. Atia; A. P. Mallarino
Source:
Soil Science Society of America journal 2002 v.66 no.5 pp. 1696-1705
ISSN:
0361-5995
Subject:
Glycine max; Sus scrofa; Zea mays; anion exchange resins; bioavailability; corn; crops; developmental stages; farmers; iron oxides; liquid manure; phosphorus; pig manure; soil; soybeans; swine; uncertainty; Iowa
Abstract:
... There is uncertainty concerning evaluation of bioavailable P in manured soils. This study assessed P availability in manured Iowa soils by measuring soil P with agronomic and environmental P tests and P uptake by corn (Zea mays L.) and soybean [Glycine max (L.) Merr.]. Soil and plant samples were collected at the V5-V6 growth stage from trials established at nine locations that received various ra ...
DOI:
10.2136/sssaj2002.1696

16. Air-Assistance in Spray Booms which have Different Spray Volumes and Nozzle Types for Chemically Controlling Spodoptera Frugiperda on Corn

Author:
Marcelo Gimenes; Carlos Raetano; Mário Dal Pogetto; Evandro Prado; Rafael de Souza Christovam; Denise Rezende; Saulo de Almeida Costa
Source:
Journal of plant protection research 2012 v.52 no.2 pp. 247-253
ISSN:
1899-007X
Subject:
Spodoptera frugiperda; Zea mays; active ingredients; air; corn; cropping systems; developmental stages; fan nozzles; plant damage; spinosad; spray booms; spraying; Brazil
Abstract:
... The study aimed to evaluate the performance of air assistance in spray booms using different types of nozzles and spray volumes. We took into account spray deposits, fall armyworm control and crop corn performance in a narrow row cropping system. The experiment was carried out at the experimental area of Sao Paulo State University, Botucatu/SP, Brazil, during the 2008/2009 agricultural season, in ...
DOI:
10.2478/v10045-012-0039-y

17. Aluminum inhibits apoplastic flow of high-molecular weight solutes in root apices of Zea mays L

Author:
Sivaguru, M.; Horst, W.J.; Eticha, D.; Matsumoto, H.
Source:
Zeitschrift für Pflanzenernährung und Bodenkunde 2006 v.169 no.5 pp. 679-690
ISSN:
1522-2624
Subject:
root tips; Zea mays; nutrient transport; callose; phytotoxicity; developmental stages; ion transport; corn; aluminum; root growth; dextran
DOI:
10.1002/jpln.200620603

18. Anaerobically digested dairy manure as fertilizer for maize in acid and alkaline soils

Author:
Morris, D.R.; Lathwell, D.J.
Source:
Communications in soil science and plant analysis 2004 v.35 no.11-12 pp. 1757-1771
ISSN:
0010-3624
Subject:
Fragiudepts; Hapludalfs; Zea mays; acid soils; alkaline soils; ammonium nitrate; calcium; corn; crop yield; dairy manure; developmental stages; farms; fertilizer application; greenhouse experimentation; manure spreading; methane; nitrogen; nitrogen content; nitrogen fertilizers; pH; shoots; vegetative growth
Abstract:
... Anaerobically digested animal manure is a potentially useful by-product from CH4 generation facilities on farm businesses. Two greenhouse experiments were conducted using an acid and alkaline soil to determine the relative effectiveness of anaerobically digested dairy manure compared to undigested dairy manure and inorganic N for increasing maize (Zea mays L.) growth in the early vegetative stage ...
DOI:
10.1081/CSS-120038567

19. Analysis of non‐coding transcriptome in rice and maize uncovers roles of conserved lncRNAs associated with agriculture traits

Author:
Huan Wang; Qi‐Wen Niu; Hui‐Wen Wu; Jun Liu; Jian Ye; Niu Yu; Nam‐Hai Chua
Source:
plant journal 2015 v.84 no.2 pp. 404-416
ISSN:
0960-7412
Subject:
corn; crops; developmental stages; epigenetics; eukaryotic cells; genes; genome-wide association study; non-coding RNA; rice; single nucleotide polymorphism; stress response; transcriptome
Abstract:
... Long non‐coding RNAs (lncRNAs) have recently been found to widely exist in eukaryotes and play important roles in key biological processes. To extend our knowledge of lncRNAs in crop plants we performed both non‐directional and strand‐specific RNA‐sequencing experiments to profile non‐coding transcriptomes of various rice and maize organs at different developmental stages. Analysis of more than 3 ...
DOI:
10.1111/tpj.13018

20. Analysis of the relationship between the spectral characteristics of maize canopy and leaf area index under drought stress

Author:
Rui Feng; Yushu Zhang; Wenying Yu; Wei Hu; Jinwen Wu; Ruipeng Ji; Hongbo Wang; Xianli Zhao
Source:
Acta ecologica Sinica 2013 v.33 no.6 pp. 301-307
ISSN:
1872-2032
Subject:
canopy; corn; correlation; crop yield; data collection; developmental stages; drought; filling period; grain crops; leaf area index; models; monitoring; prediction; principal component analysis; reflectance; soil water; spectral analysis; vegetation; water stress; water supply; wavelengths; China
Abstract:
... Maize is one of the most widespread grain crops in the world; however, more than 70% of corn in China suffers some degree of drought disaster every year. Leaf area index (LAI) is an important biophysical parameter of the vegetation canopy and has important significance for crop yield estimation. Using the data of canopy spectral reflectance and leaf area index (LAI) for maize plants experiencing d ...
DOI:
10.1016/j.chnaes.2013.09.001