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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
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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. The ATG Autophagic Conjugation System in Maize: ATG Transcripts and Abundance of the ATG8-Lipid Adduct Are Regulated by Development and Nutrient Availability

Author:
Chung, Taijoon; Suttangkakul, Anongpat; Vierstra, Richard D.
Source:
Plant physiology 2009 v.149 no.1 pp. 220-234
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; proteins; Zea mays; alternative splicing; rice; loci; nitrogen; Oryza sativa; developmental stages; nutrient availability; field crops; corn; vacuoles; hydrolases; genes; leaves; starvation
Abstract:
... Plants employ sophisticated mechanisms to recycle intracellular constituents needed for growth, development, and survival under nutrient-limiting conditions. Autophagy is one important route in which cytoplasm and organelles are sequestered in bulk into vesicles and subsequently delivered to the vacuole for breakdown by resident hydrolases. The formation and trafficking of autophagic vesicles are ...
DOI:
10.1104/pp.108.126714
PubMed:
18790996
PubMed Central:
PMC2613746

4. 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

5. 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

6. 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

7. 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

8. 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

9. 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

10. 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

11. Active Sensor Reflectance Measurements of Corn Nitrogen Status and Yield Potential

Author:
Fernando Solari; John Shanahan; Richard Ferguson; James Schepers; Anatoly Gitelson
Source:
Agronomy journal 2008 v.100 no.3 pp. 571-579
ISSN:
0002-1962
Subject:
Zea mays; chlorophyll; plant development; plant nutrition; nitrogen; developmental stages; corn; precision agriculture; grain yield; variable rate application; remote sensing; spectral analysis; reflectance; nutrient use efficiency
Abstract:
... Active sensor reflectance assessments of corn (Zea mays L.) canopy N status are advocated to direct variable N applications and improve N use efficiency (NUE). Our goals were to determine: (i) growth stage and (ii) sensor vegetation index with greatest sensitivity in assessing N status and grain yield. Variable crop N was generated by supplying N at different amounts and times in three field studi ...
Handle:
10113/18480
DOI:
10.2134/agronj2007.0244

12. 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

13. 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

14. 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

15. Aflatoxin Concentration in Corn as Influenced by Kernel Development Stage and Postinoculation Temperature in Controlled Environments

Author:
D. L. Thompson; E. B. Lillehoj; K. J. Leonard; W. F. Kwolek; M. S. Zuber
Source:
Crop science 1980 v.20 no.5 pp. 609-612
ISSN:
0011-183X
Subject:
Zea mays; corn; fungal diseases of plants; Aspergillus flavus; seeds; seed development; developmental stages; aflatoxins; microbial contamination; air temperature; growth chambers; heat sums
Abstract:
... Developing kernels of two cultivars of corn (Tea mays L.), ‘Gaspe Flint’ (Gaspe) and ‘W103 ✕ Gaspe,’ were inoculated with Aspergillus flavus Link ex Fr. at three kernel-development stages (early-dough, medium-dough, and late hard-dough) and grown in four post inoculation temperature regimes of 9.5, 12.5, 14.5, and 17.5 C thermal units/day (mean daily temperature minus 10 C) in controlled environme ...
Handle:
10113/26136
DOI:
10.2135/cropsci1980.0011183X002000050015x

16. AgriSeqDB: an online RNA-Seq database for functional studies of agriculturally relevant plant species

Author:
Andrew J. Robinson; Muluneh Tamiru; Rachel Salby; Clayton Bolitho; Andrew Williams; Simon Huggard; Eva Fisch; Kathryn Unsworth; James Whelan; Mathew G. Lewsey
Source:
BMC plant biology 2018 v.18 no.1 pp. 200
ISSN:
1471-2229
Subject:
Arabidopsis; barley; bioinformatics; cooperative research; corn; crops; data collection; databases; developmental stages; experts; genes; genomics; rice; sequence analysis; tissues; tomatoes; transcriptome; wheat
Abstract:
... BACKGROUND: The genome-wide expression profile of genes in different tissues/cell types and developmental stages is a vital component of many functional genomic studies. Transcriptome data obtained by RNA-sequencing (RNA-Seq) is often deposited in public databases that are made available via data portals. Data visualization is one of the first steps in assessment and hypothesis generation. However ...
DOI:
10.1186/s12870-018-1406-2
PubMed:
30231853
PubMed Central:
PMC6146512

17. 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

18. Agrobacterium tumefaciens-mediated transformation of corn (Zea mays L.) multiple shoots

Author:
Shi-liang Cao; Pathmalojiny Masilamany; Wen-bin Li; K. Peter Pauls
Source:
Biotechnology, biotechnological equipment 2014 v.28 no.2 pp. 208-216
ISSN:
1314-3530
Subject:
Agrobacterium radiobacter; Southern blotting; Zea mays; biotechnology; coculture; corn; developmental stages; equipment; genotype; interphase; proline; reverse transcriptase polymerase chain reaction; surfactants; temperature; tissue culture
Abstract:
... An Agrobacterium tumefaciens-mediated corn transformation method based on multiple shoot tissue cultures was developed, which is effective with a variety of corn inbred lines and standard binary vectors. Six factors that affected the success of corn transformation were tested, including A. tumefaciens strain, corn genotype, tissue culture growth stage, medium composition, co-culture temperature an ...
DOI:
10.1080/13102818.2014.907654
PubMed:
26019506
PubMed Central:
PMC4433900

19. 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

20. 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