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You searched for: Subject phenology Remove constraint Subject: phenology Subject term acetates Remove constraint Subject term: acetates
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1. Release rates for pine sawfly pheromones from two types of dispensers and phenology of Neodiprion sertifer

Author:
Johansson, B.G.; Anderbrant, O.; Simandl, J.; Avtzis, N.D.; Salvadori, C.; Hedenstrom, E.; Edlund, H.; Hogberg, H.E.
Source:
Journal of chemical ecology 2001 v.27 no.4 pp. 733-745
ISSN:
0098-0331
Subject:
Diprion pini; Neodiprion sertifer; acetates; bait traps; cotton; dispensers; flight; phenology; polyethylene; propionic acid; sawflies; sex pheromones; temperature; Czech Republic; Greece; Italy; Sweden
Abstract:
... Comparisons of release rates, duration in the field, and catch efficiency of polyethylene and cotton roll dispensers for the sex pheromones of sawflies (Hymenoptera: Diprionidae) were conducted. The release rates of the Neodiprion sertifer (Geoffr.) and Diprion pini (L.) sex pheromones, the acetates of pentadecanol and (2S,3S,7S)-3,7-dimethyl (2S,3R,7R)-3,7-dimethyl-2-tridecanol from polyethylene ...
PubMed:
11446297

2. Interannual and seasonal changes in the soil exchange rates of monoterpenes and other VOCs in a Mediterranean shrubland

Author:
Asensio, D.; Peñuelas, J.; Prieto, P.; Estiarte, M.; Filella, I.; Llusià, J.
Source:
European journal of soil science 2008 v.59 no.5 pp. 878-891
ISSN:
1351-0754
Subject:
acetaldehyde; acetates; acetic acid; acetone; drought; emissions; foliar uptake; inventories; methanol; monoterpenoids; phenology; roots; seasonal variation; shrublands; soil ecology; soil temperature; soil water; volatile organic compounds
Abstract:
... Information about soil VOC inventories and exchange rates in different soils is very scarce. Seasonality of soil VOC exchange rates is also largely unknown, despite the increasing interest in some soil volatile compounds, such as monoterpenes, because of their important role in soil ecology. We aimed to explore and quantify soil VOC exchange rates in a Mediterranean shrubland and their seasonality ...
DOI:
10.1111/j.1365-2389.2008.01057.x

3. Chemical Composition and Variation of the Essential Oil of Wild Sardinian Helichrysum Italicum G. Don subsp. Microphyllum (Willd.) Nym from Vegetative Period to Post-blooming

Author:
Usai, M.; Foddai, M.; Bernardini, A.F.; Muselli, A.; Costa, J.; Marchetti, M.
Source:
Journal of essential oil research 2010 v.22 no.5 pp. 373-380
ISSN:
1041-2905
Subject:
temporal variation; chemical composition; flowering; acetates; wild plants; chemical constituents of plants; phenology; essential oils; Helichrysum italicum; aerial parts; altitude; mass spectrometry; gas chromatography; climatic factors; alcohols; vegetative growth; Sardinia
Abstract:
... The essential oils obtained by water distillation from the aerial parts of Helichrysum italicum G. Don subsp. microphyllum (Willd.) Nym. were analyzed by GC and GC/MS. Three different populations growing at different elevations and under different weather conditions were studied from their vegetative period to post-blooming time. Forty-eight constituents accounting for between 96.5% and 83.0% of t ...
DOI:
10.1080/10412905.2010.9700350

4. Seasonal variations in phenological traits: leaf shedding and cambial activity in Parkia nitida Miq. and Parkia velutina Benoist (Fabaceae) in tropical rainforest

Author:
Hélène Morel; Thomas Mangenet; Jacques Beauchêne; Julien Ruelle; Eric Nicolini; Patrick Heuret; Bernard Thibaut
Source:
Trees 2015 v.29 no.4 pp. 973-984
ISSN:
0931-1890
Subject:
Parkia; acetates; cambium; developmental stages; dry season; leaf abscission; leaves; periodicity; phenology; rain; seasonal variation; tree age; tree growth; trees; tropical rain forests; wood; French Guiana
Abstract:
... KEY MESSAGE : In French Guiana, the leaf and cambium phenologies should not be considered only as exogenous-driven processes, as the dry season, but also as endogenous-driven, as tree development stage. Studies of the periodicity of wood formation provide essential data on tree age and on factors that control tree growth. The aim of this work was to investigate cambial phenology and its relation w ...
DOI:
10.1007/s00468-015-1177-4

5. The phenological stage of rice growth determines anaerobic ammonium oxidation activity in rhizosphere soil

Author:
Hu Li; Xiaoru Yang; Bosen Weng; Jianqiang Su; San’an Nie; Jack A. Gilbert; Yong-Guan Zhu
Source:
Soil biology & biochemistry 2016 v.100 pp. 59-65
ISSN:
0038-0717
Subject:
acetates; anaerobic ammonium oxidation; carbon nitrogen ratio; citrates; correlation; formates; nitrates; nitrifying bacteria; nitrites; nitrogen; phenology; rhizosphere; rhizosphere bacteria; rice; ripening; root exudates; soil; succinic acid; temporal variation; tillering
Abstract:
... Anaerobic oxidation of ammonium (anammox) plays an important role in nitrogen (N) loss from agricultural systems. Recently, the rice rhizosphere was demonstrated to be a hotspot for anammox, yet the dynamics of anammox activity and the distribution of anammox bacteria in rhizosphere soil at different phenological stages of rice growth are still unknown. In this study, the activity, diversity and a ...
DOI:
10.1016/j.soilbio.2016.05.015

6. Chemical composition, phenolic content, free radical scavenging and antifungal activities of Achillea biebersteinii

Author:
Seyed Fazel Mirahmadi; Reza Norouzi
Source:
Food bioscience 2017 v.18 pp. 53-59
ISSN:
2212-4292
Subject:
Achillea biebersteinii; acetates; flowering; 2,2-diphenyl-1-picrylhydrazyl; essential oils; p-cymene; plant pathogenic fungi; hydrodistillation; inhibitory concentration 50; phenology; fruit set; leaves; gas chromatography-mass spectrometry; antifungal properties; oils; aerial parts; antioxidant activity; chemical composition; cineole; free radical scavengers; Iran
Abstract:
... In this study, the chemical composition of essential oil isolated by hydrodistillation from the aerial part of Achillea biebersteinii, growing wild in Iran was analyzed by GC and GC-MS. Eleven compounds were identified, representing 96.6% of total components. 1,8-cineole (45.2%), p-cymene (20.8%) and cis-chrysanthenyl acetate (20.4%) were found to be the main components of the oil. The study of th ...
DOI:
10.1016/j.fbio.2017.04.004

7. Volatile compounds in different parts of the fruit Psidium guajava L. cv. “Media China” identified at distinct phenological stages using HS‐SPME‐GC‐QTOF/MS

Author:
María P. Elizalde‐González; Erika J. Segura‐Rivera
Source:
Phytochemical analysis 2018 v.29 no.6 pp. 649-660
ISSN:
0958-0344
Subject:
Psidium guajava; X-ray fluorescence spectroscopy; acetates; benzaldehyde; butyrates; chemical constituents of plants; cutting; diodes; food quality; gas chromatography; guavas; headspace analysis; high performance liquid chromatography; laboratory experimentation; mass spectrometry; octanoic acid; orchards; pericarp; phenology; potassium; refractive index; ripening; sodium; solid phase microextraction; temperature; titration; volatile organic compounds
Abstract:
... INTRODUCTION: Determination of the volatile organic compounds (VOCs) emitted by immature fruits furthers our understanding of plant–pest interactions and by fruits in a ripe state concerns food quality. OBJECTIVES: To apply headspace solid‐phase microextraction gas chromatography quadrupole time‐of‐flight mass spectrometry (HS‐SPME‐GC‐QTOF/MS) to compare the volatiles emitted by different parts of ...
DOI:
10.1002/pca.2778

8. Distinct rhizosphere effect on active and total bacterial communities in paddy soils

Author:
Hu Li; Jian-Qiang Su; Xiao-Ru Yang; Yong-Guan Zhu
Source:
Science of the total environment 2019 v.649 pp. 422-430
ISSN:
0048-9697
Subject:
Coprococcus; DNA; Lachnospiraceae; Oxobacter; acetates; alpha-Proteobacteria; bacterial communities; biogeochemical cycles; developmental stages; genes; lactic acid; microorganisms; oxalates; paddy soils; phenology; plant growth; plant health; protein subunits; rhizosphere; ribosomal RNA; ribosomal proteins; rice; root exudates; soil biota
Abstract:
... Rhizosphere microbes are critical for plant health and biogeochemical cycles. Understanding the diversity of active microorganisms in the rhizosphere is key to enhancing plant growth and productivity. We examined rhizosphere bacterial communities of rice by comparison of the 16S ribosomal subunit amplicons generated from both the total (DNA-based, 16S rRNA gene) and the active (RNA-based, 16S rRNA ...
DOI:
10.1016/j.scitotenv.2018.08.373

9. Chemical Composition of Milk and Rumen Microbiome Diversity of Yak, Impacting by Herbage Grown at Different Phenological Periods on the Qinghai-Tibet Plateau

Author:
Qingshan Fan; Metha Wanapat; Fujiang Hou
Source:
Animals 2020 v.10 no.6 pp. -
ISSN:
2076-2615
Subject:
Desulfovibrio; Olsenella; acetates; alpine meadows; bacterial communities; community structure; crude protein; females; forage; genes; microbiome; milk; milk proteins; milk quality; neutral detergent fiber; nutrient content; phenology; propionic acid; rumen; rumen fermentation; vegetative growth; volatile fatty acids; yaks; China
Abstract:
... To estimate how native herbage of three different phenological periods modify rumen performance and milk quality of yak grazing alpine meadow. In this study, milk composition and the diversity of the rumen microbial community were measured in 12 full-grazing female yaks on the Qinghai-Tibet Plateau (QTP). The nutrient composition of three phenological periods was determined: Vegetative stage (VS), ...
DOI:
10.3390/ani10061030

10. Electrophysiological Responses of the Beech Leaf-Mining Weevil, Orchestes fagi, to Seasonally-Variant Volatile Organic Compounds Emitted by American Beech, Fagus grandifolia

Author:
Simon P. Pawlowski; Jon D. Sweeney; N. Kirk Hillier
Source:
Journal of chemical ecology 2020 v.46 no.10 pp. 935-946
ISSN:
0098-0331
Subject:
Curculionidae; Fagus grandifolia; Fagus sylvatica subsp. sylvatica; acetates; antennae; behavior; chemical ecology; detection; developmental stages; electrophysiology; emissions; females; growing season; leaves; males; methyl jasmonate; monitoring; oviposition; pests; phenology; sabinene; smell; volatile organic compounds; Nova Scotia
Abstract:
... The beech leaf-mining weevil, Orchestes fagi, is a common pest of European beech, Fagus sylvatica, and has recently become established in Nova Scotia, Canada where it similarly infests American beech, F. grandifolia. We collected volatile organic compounds (VOCs) emitted by F. grandifolia leaves at five developmental stages over one growing season and simultaneously analyzed them for volatile emis ...
DOI:
10.1007/s10886-020-01216-z

11. Viburnum tinus L.: Investigation on its spontaneous emission at different phenological stages

Author:
Basma Najar; Benedetta Ferri; Pier Luigi Cioni; Luisa Pistelli
Source:
Biochemical systematics and ecology 2020 v.89 pp. 104013
ISSN:
0305-1978
Subject:
Viburnum tinus; acetates; emissions; flowers; gas chromatography-mass spectrometry; leaves; monoterpenoids; pericarp; phenology; seeds; sesquiterpenoids; solid phase microextraction; volatile compounds
Abstract:
... The volatile components emitted from different organs of Viburnum tinus L., collected during various developmental stages, were analysed by solid phase micro extraction (SPME) and identified by GC-MS. More than 90% of the identified fraction was represented by non-terpenes in both young and adult leaves (94.2% and 94.3%, respectively), as well as in fruits of different ages: unripe and ripe (red a ...
DOI:
10.1016/j.bse.2020.104013

12. Identification of Sex Pheromone Components of Korean Dioryctria abietella (Lepidoptera: Pyralidae) Population and Synergism of Pheromone and Pine Cone Volatile Blends

Author:
Sung-Chan Lee; Jae-Woo Lee; Dong Ha Lee; Min-Jung Huh; Il Nam; Ji-Hong Park; Myunghee Jung; Il-Kwon Park
Source:
Journal of economic entomology 2021 v.115 no.1 pp. 178-186
ISSN:
0022-0493
Subject:
Dioryctria abietella; Pinus koraiensis; acetates; dose response; electroantennography; entomology; females; flight; limonene; males; myrcene; phenology; sex pheromones; synergism
Abstract:
... (9Z,11E)-tetradecadienyl acetate (9Z,11E-14:OAc) and (3Z,6Z,9Z,12Z,15Z)-pentacosapentaene (C25 pentaene), known as the sex pheromone of the European Dioryctria abietella population, were identified in the Korean D. abietella population. The ratio of 9Z,11E-14:OAc to C25 pentaene extracted from female pheromone glands was 1:23. The electroantennogram (EAG) response of male antennae to 9Z,11E-14:OAc ...
DOI:
10.1093/jee/toab227

13. Productivity and quality of Cymbopogon martinii (Roxb.) Wats. as influenced by harvesting at different phenological stages

Author:
Nilofer; Anil Kumar Singh; Parminder Kaur; Devendra Kumar; Kirti Verma; Rakesh Kumar; T.M. Anandakumar; C.S. Chanotiya; Saudan Singh
Source:
Industrial crops and products 2021 v.174 pp. 114215
ISSN:
0926-6690
Subject:
Cymbopogon martinii; acetates; essential oils; farms; forage yield; geraniol; oils; perennial grasses; phenology; India
Abstract:
... Palmarosa [Cymbopogon martinii (Roxb.) Wats.] is a perennial grass and commercialized for its high value and industrially important essential oil dominated by geraniol and geranyl acetate. The aim of this study is to optimize the harvesting stage for getting higher yields of essential oil, geraniol, geranyl acetate and maximum monitory returns. The fields experiment spanning over two years (May 20 ...
DOI:
10.1016/j.indcrop.2021.114215

14. Changes of Essential Oil Compositions and Biological Activities of Different Phenological Stage and Part of Ducrosia anethifolia (DC.) Boiss

Author:
Alireza Shayganfar; Hassan Mumivand; Jalal Khorshidi; Ghasem Esmaeili; Hossein Khosravi
Source:
Journal of essential oil-bearing plants 2022 v.25 no.3 pp. 681-689
ISSN:
0976-5026
Subject:
Ducrosia anethifolia; acetates; anticonvulsants; cytotoxicity; dietary supplements; essential oils; gas chromatography; growth and development; hydrodistillation; ingredients; lipid content; odors; phenology; plant growth; sedatives; Iran
Abstract:
... Ducrosia anethifolia L., an aromatic plant of the Apiaceae family, is traditionally used in Iran to improve the odor of foods and drinks. Different biological activities have been reported for this plant such as antibacterial, cytotoxic, antiproliferative, antianxiety, and sedative. The essential oil profile of D. anethifolia was investigated in different plant situations (phenological stages, sta ...
DOI:
10.1080/0972060X.2022.2091958

15. Volatile compounds and antifungal activity of Dracocephalum moldavica L. at different phenological stages

Author:
Nesa Abbasi; Mohammad Fattahi; Youbert Ghosta; Fatemeh Sefidkon
Source:
Journal of essential oil research 2022 v.34 no.1 pp. 87-95
ISSN:
2163-8152
Subject:
Aspergillus niger; Dracocephalum moldavica; Penicillium expansum; Trichoderma harzianum; acetates; antifungal properties; biopreservatives; essential oils; fruit set; geranial; geraniol; growth retardation; mycelium; neral; phenology; research
Abstract:
... The present work aimed to study the essential oil (EO) variation of Dracocephalum moldavica L. under different phenological stages. The EO yield was highest in the flowering stage, followed by floral budding, fruit set, and vegetative stages. Twenty-three components in EOs were identified by GC-MS and quantified using GC-FID. Geranyl acetate (31–50 %), geranial (16–27 %), geraniol (12–13.4 %) and ...
DOI:
10.1080/10412905.2021.1975577