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1. The impact of the primary colours yellow, red and, blue on the perception of greenery

Author:
Thorpert, Petra; Englund, Jan-Eric; Nielsen, Anders Busse
Source:
Landscape research 2019 v.44 no.1 pp. 88-98
ISSN:
1469-9710
Subject:
perennials,   etc   ; color; green infrastructure; landscaping; professionals; vegetation;     Show all 6 Subjects
Abstract:
... Colourful flowers and artefacts are frequently used in modern landscape architecture and in site-specific artwork. Despite this, there is limited empirically substantiated understanding of the impact of colour on perceptions of the soft, changing green colour palette of surrounding vegetation, and thus the overall colour perception of green spaces. Applying the CIE 1976 (L*a*b*) colour space, this ...
DOI:
10.1080/01426397.2017.1413177

2. Branching out: new insights into the genetic regulation of shoot architecture in trees

Author:
Hill, Joseph L; Hollender, Courtney A
Source:
Current opinion in plant biology 2019 v.47 pp. 73-80
ISSN:
1369-5266
Subject:
perennials,   etc   ; gene dosage; genes; gravitropism; models; sequence analysis; trees;     Show all 7 Subjects
Abstract:
... Directional growth in all plants involves both phototropic and gravitropic responses. Accordingly, mechanisms controlling shoot architecture throughout the plant kingdom are likely similar. However, as forms vary between species due in part to gene copy number and functional divergence, some aspects of how plants predetermine and regulate architecture can differ. This is especially true when compa ...
DOI:
10.1016/j.pbi.2018.09.010

3. Weeds flora demographic analysis of date palm orchards in El-Bahariya, El-Frafra and Siwa oases

Author:
Balah, Mohamed Abdel Aziz
Source:
Acta ecologica Sinica 2019 v.39 no.1 pp. 14-20
ISSN:
1872-2032
Subject:
perennial weeds; perennials,   etc   ; Phoenix dactylifera; Poaceae; annual weeds; demography; ecosystems; flora; fruits; invasive species; oases; orchards; parasitic plants; photosynthesis; population dynamics; soil properties; surveys; trees;     Show all 18 Subjects
Abstract:
... Oases are a specific ecosystems which date palm Phoenix dactylifera are the mainly crop growing for its fruits and others tree parts. Palm orchards are infested by many pests, including weeds species and exposed within time to the challenging invasive weeds to control. The heavy incidence of weeds negatively affects palm productivity, especially in small plantation and divergent distances, while t ...
DOI:
10.1016/j.chnaes.2018.07.002

4. Seed Fecundity, Persistence, and Germination Biology of Prairie Groundcherry (Physalis hederifolia) in Australia

Author:
Wu, Hanwen; Stanton, Rex; Lemerle, Deirdre
Source:
Weed science 2019 v.67 no.1 pp. 77-82
ISSN:
0043-1745
Subject:
perennial weeds; perennials,   etc   ; Physalis; buried seeds; diurnal variation; fecundity; grazing; invasive species; longevity; osmotic stress; pH; seed germination; seed set; small fruits; soil; summer; temperature; weed control; Australia;     Show all 19 Subjects
Abstract:
... Prairie groundcherry [Physalis hederifolia (A. Gray) var. fendleri (A. Gray) Cronquist] is an invasive perennial weed with the potential to become a significant summer weed across 409 million hectares in Australia. Current management practices do not provide effective control of established populations. A better understanding of the seed biology is needed to effectively manage this weed. A series ...
DOI:
10.1017/wsc.2018.67

5. From tradition to landscape architecture – Planting design concept using perennials and bulbs

Author:
Székely-Varga, Zsolt; Hitter Buru, Timea; Cotoz, Alex-Peter; Buta, Erzsébet; Cantor, Maria
Source:
Acta Universitatis Sapientiae. Agriculture and environment 2019 v.11 no.1 pp. 95-108
ISSN:
2068-2964
Subject:
perennials,   etc   ; Lavandula; bulbs; case studies; color; flowering; landscaping; ornamental plants; planting;     Show all 9 Subjects
Abstract:
... “Tradition and Modernity”, two aspects the University of Agriculture Sciences and Veterinary Medicine of Cluj-Napoca lives by. The current paper presents a case study analysis of a landscape architecture design, combining tradition with modernity. Through the use of traditional Transylvanian patterns, this concept design is based on the use of different plant species and flowering periods. It meas ...
DOI:
10.2478/ausae-2019-0009

6. Evidence for direct effects of fire‐cues on germination of some perennial forbs common in grassy ecosystems

Author:
Hodges, Joshua A.; Price, Jodi N.; Nimmo, Dale G.; Guja, Lydia K.
Source:
Austral ecology 2019 v.44 no.7 pp. 1271-1284
ISSN:
1442-9985
Subject:
perennials,   etc   ; Dianella; Eryngium; cold; dormancy; ecosystems; forbs; germination; heat; indigenous species; smoke; temperature; Australia;     Show all 13 Subjects
Abstract:
... In grassy ecosystems of south‐eastern Australia, fire maintains richness of native forbs. It is commonly thought that fire promotes regeneration indirectly by reducing competition for light and providing gaps for recruitment, rather than directly stimulating germination. However, physiological dormancy and morphophysiological dormancy are common, and few studies have explored responses to fire‐cue ...
DOI:
10.1111/aec.12806

7. Facultative mycorrhizal associations promote plant naturalization worldwide

Author:
Pyšek, Petr; Guo, Wen‐Yong; Štajerová, Kateřina; Moora, Mari; Bueno, C. Guillermo; Dawson, Wayne; Essl, Franz; Gerz, Maret; Kreft, Holger; Pergl, Jan; van Kleunen, Mark; Weigelt, Patrick; Winter, Marten; Zobel, Martin
Source:
Ecosphere 2019 v.10 no.11 pp. e02937
ISSN:
2150-8925
Subject:
perennials,   etc   ; annuals; databases; ectomycorrhizae; flora; introduced species; vascular plants; vesicular arbuscular mycorrhizae;     Show all 8 Subjects
Abstract:
... Mycorrhizal symbiosis has received relatively little attention as a mechanism explaining plant naturalizations at a global scale. Here, we combined data on vascular plant species occurrences in over 840 mainland and island regions from the Global Naturalized Alien Flora (GloNAF) database with up‐to‐date databases of mycorrhizal associations. We tested whether the mycorrhizal type (arbuscular, AM; ...
DOI:
10.1002/ecs2.2937

8. On the Issue of Ecological Niches of Plant Pathogens in Western Siberia

Author:
Vorob’eva, I. G.; Toropova, E. Yu.
Source:
Contemporary problems of ecology 2019 v.12 no.6 pp. 667-674
ISSN:
1995-4255
Subject:
perennials,   etc   ; agroecosystems; landscapes; monitoring; niches; plant organs; plant pathogens; soil; Siberia;     Show all 9 Subjects
Abstract:
... This article outlines a systematic and ecological approach to the analysis of ecological niches of pathogenic plant micromycetes taking into account the achievements of general and evolutionary ecology and epiphytothiology. The regularities of the expansion of phytopathogen niches in different ecological environments are traced. The evolutionarily formed primary narrow ecological niches of soil mi ...
DOI:
10.1134/S1995425519060155

9. The adaptation of alien ornamental herbaceous perennials – benefits and risks

Author:
Nāburga-Jermakova, I.; Strazdiņa, L.
Source:
Acta horticulturae 2019 no.1263 pp. 83-90
ISSN:
0567-7572
Subject:
perennials,   etc   ; botanical gardens; flora; herbaceous plants; markets; overwintering; pests; phenology; reproduction; Latvia;     Show all 10 Subjects
Abstract:
... The purpose of the study was to evaluate the adaptation of alien ornamental herbaceous perennials offered by the plant market in Latvia and to find out those taxa that tend to become threatening for local flora. Plants represent 290 species belonging to 176 genera hosted by the Botanical Garden of the University of Latvia. The adaptation was determined based on observations of phenological and bio ...
DOI:
10.17660/ActaHortic.2019.1263.10

10. The Introduced Argentine Ant (Linepithema humile) on the California Channel Islands: Distribution and Patterns of Spread

Author:
Boser, Christina L.; Merrill, Korie; Fisher, Robert N.; Naughton, Ida; Holway, David A.
Source:
Western North American naturalist 2019 v.78 no.4 pp. 820-828
ISSN:
1527-0904
Subject:
perennials,   etc   ; Linepithema humile; ecosystems; habitats; humans; indigenous species; introduced species; islands; surveys; vegetation; California;     Show all 11 Subjects
Abstract:
... The Argentine ant (Linepithema humile) is a widespread and abundant introduced species that disrupts ecosystems throughout its introduced range. This invader was inadvertently introduced to Santa Catalina, San Clemente, Santa Cruz, and San Nicolas Islands at various points during the past century but currently appears to be absent from the remaining Channel Islands. Multiple spatially disjunct inf ...
DOI:
10.3398/064.078.0421

11. Evolutionary potential of a widespread clonal grass under changing climate

Author:
Stojanova, Bojana; Koláříková, Veronika; Šurinová, Maria; Klápště, Jaroslav; Hadincová, Věroslava; Münzbergová, Zuzana
Source:
Journal of evolutionary biology 2019 v.32 no.10 pp. 1057-1068
ISSN:
1010-061X
Subject:
perennial grasses,   etc   ; Festuca rubra; climate; climate change; covariance; genetic variance; genotype; landscapes; models; prediction; Norway;     Show all 11 Subjects
Abstract:
... Adaptive responses are probably the most effective long‐term responses of populations to climate change, but they require sufficient evolutionary potential upon which selection can act. This requires high genetic variance for the traits under selection and low antagonizing genetic covariances between the different traits. Evolutionary potential estimates are still scarce for long‐lived, clonal pla ...
DOI:
10.1111/jeb.13507

12. Badlands, Seed Banks, and Community Disassembly

Author:
Perkins, Lora B.; Ducheneaux, Kelsey R.; Hatfield, Gary; Abella, Scott R.
Source:
Rangeland ecology & management 2019 v.72 no.5 pp. 736-741
ISSN:
1550-7424
Subject:
perennials,   etc   ; buried seeds; ecological resilience; extinction; grasslands; immigration; land use; longevity; reproduction; seed longevity; species richness;     Show all 11 Subjects
Abstract:
... Soil seed banks are a key component of ecological resilience as they provide a temporal reserve for plant species richness and diversity. Soil seed banks depend on on-site reproduction, seed longevity, and seed immigration for maintenance. When immigration of seeds is lost due to a change in land use or a disturbance, such as fragmentation, seed banks rely on on-site reproduction and longevity for ...
DOI:
10.1016/j.rama.2019.05.004

13. Evaluation of herbicides for hair fescue (Festuca filiformis) management and potential seedbank reduction in lowbush blueberry

Author:
White, Scott N.
Source:
Weed technology 2019 v.33 no.6 pp. 840-846
ISSN:
1550-2740
Subject:
perennial grasses,   etc   ; Festuca filiformis; Vaccinium angustifolium; autumn; flowering; glufosinate; growers; hexazinone; pronamide; pruning; spring; terbacil; weeds;     Show all 13 Subjects
Abstract:
... Hair fescue is a widespread, seed-limited perennial grass in lowbush blueberry fields. Growers rely on pronamide, an expensive and difficult herbicide to use, for hair fescue management. Recent herbicide registrations provide opportunity to reduce pronamide use, though effects of these herbicides on hair fescue suppression and seedbank reduction are not well understood. The objectives of this rese ...
DOI:
10.1017/wet.2019.71

14. Advanced Method to Capture the Time-Lag Effects between Annual NDVI and Precipitation Variation Using RNN in the Arid and Semi-Arid Grasslands

Author:
Wu, Taosuo; Feng, Feng; Lin, Qian; Bai, Hongmei
Source:
Water 2019 v.11 no.9
ISSN:
2073-4441
Subject:
perennials,   etc   ; arid lands; grasslands; models; normalized difference vegetation index; prediction; China;     Show all 7 Subjects
Abstract:
... The latest research indicates that there are time-lag effects between the normalized difference vegetation index (NDVI) and the precipitation variation. It is well known that the time-lags are different from region to region, and there are time-lags for the NDVI itself correlated to the precipitation. In the arid and semi-arid grasslands, the annual NDVI has proved not only to be highly dependent ...
DOI:
10.3390/w11091789

15. A Multifaceted Overview of Apple Tree Domestication

Author:
Cornille, Amandine; Antolín, Ferran; Garcia, Elena; Vernesi, Cristiano; Fietta, Alice; Brinkkemper, Otto; Kirleis, Wiebke; Schlumbaum, Angela; Roldán-Ruiz, Isabel
Source:
Trends in plant science 2019 v.24 no.8 pp. 770-782
ISSN:
1360-1385
Subject:
perennials,   etc   ; Malus domestica; apples; crop production; domestication; genomics; models; population genetics; trees; Eurasia;     Show all 10 Subjects
Abstract:
... The apple is an iconic tree and a major fruit crop worldwide. It is also a model species for the study of the evolutionary processes and genomic basis underlying the domestication of clonally propagated perennial crops. Multidisciplinary approaches from across Eurasia have documented the pace and process of cultivation of this remarkable crop. While population genetics and genomics have revealed t ...
DOI:
10.1016/j.tplants.2019.05.007

16. Demographic senescence and effects on population dynamics of a perennial plant

Author:
Edelfeldt, Stina; Bengtsson, Karin; Dahlgren, Johan P.
Source:
Ecology 2019 v.100 no.8 pp. e02742
ISSN:
0012-9658
Subject:
perennials,   etc   ; Fumana procumbens; fruiting; fruits; germination; models; plant age; population growth; prediction; probability; threatened species; viability;     Show all 12 Subjects
Abstract:
... Demographic rates in plants are usually assumed to be more stage or size dependent than age dependent, and aging is therefore not considered in demographic models. However, little is known about the effect of age on demographic rates, as there still are few studies based on long‐term individual‐based plant population data that consider both individual age and size. In addition, little is known abo ...
DOI:
10.1002/ecy.2742

17. Responses of different herb life-history groups to a dominant shrub species along a dune stabilization gradient

Author:
Bai, Yuxuan; Zhang, Yuqing; Michalet, Richard; She, Weiwei; Jia, Xin; Qin, Shugao
Source:
Basic and applied ecology 2019 v.38 pp. 1-12
ISSN:
1439-1791
Subject:
perennials,   etc   ; Artemisia; annuals; biomass; desertification; dunes; ecological restoration; life history; observational studies; shrubs; understory; China;     Show all 12 Subjects
Abstract:
... Shrubs play a pivotal role in reversing desertification and in promoting ecological rehabilitation in severe environments. However, how the interactions between shrubs and their understorey species change during restoration remains unclear. Here, we report the results of an observational study conducted in the Mu Us Desert of northern China. This study explored how dune stabilization and the size ...
DOI:
10.1016/j.baae.2019.06.001

18. Does averaging overestimate or underestimate population growth? It depends

Author:
Logofet, Dmitrii O.
Source:
Ecological modelling 2019
ISSN:
0304-3800
Subject:
perennials,   etc   ; Androsace; Monte Carlo method; case studies; models; population growth; population viability; prediction; viability;     Show all 9 Subjects
Abstract:
... When a matrix population model is nonautonomous, i.e., when represents a set of single-time-step ("annual") PPMs, L(t), t = 0, 1, …, T – 1, each corresponding to a fixed life cycle graph, then each of the annual matrices generates its own set of model results to characterize the population. In particular, λ1(t), the asymptotic growth rate, varies with t and may result in alternating predictions of ...
DOI:
10.1016/j.ecolmodel.2019.108744

19. Apparent photosynthesis of terrestrial mosses: An indicator of population functional health

Author:
Vitt, Dale H.
Source:
Acta Musei Silesiae, Scientiae Naturales 2019 v.68 no.1-2 pp. 45-52
ISSN:
2336-3207
Subject:
perennials,   etc   ; canopy; deciduous forests; drought; habitats; mosses and liverworts; photosynthesis; wet-dry cycles; North America;     Show all 9 Subjects
Abstract:
... Terrestrial mosses dominate the ground in many vegetation types and most are long-lived perennials with highly complex canopies. Long-term population health continues through numerous wetting and drying cycles; however, extreme drought or extended wet periods may create conditions that cause some parts of the population to die or remain inactive. I examined apparent photosynthesis of fully hydrate ...
DOI:
10.2478/cszma-2019-0006

20. Characterization of a novel aryloxyphenoxypropionate herbicide-hydrolyzing carboxylesterase with R-enantiomer preference from Brevundimonas sp. QPT-2

Author:
Xu, Xinyun; Wang, Jiahao; Yu, Ting; Nian, Haohan; Zhang, Hui; Wang, Guangli; Li, Feng
Source:
Process biochemistry 2019 v.82 pp. 102-109
ISSN:
1359-5113
Subject:
perennial grasses,   etc   ; Brevundimonas; Escherichia coli; alcohols; bioremediation; carboxylesterase; catalytic activity; cleavage (chemistry); enantioselectivity; genes; herbicides; hydrolysis;     Show all 12 Subjects
Abstract:
... Aryloxyphenoxypropionate (AOPP) herbicides with a chiral center are widely used to selectively remove annual and perennial grasses. However, the study of the enzymes involved in enantioselective degradation of AOPP herbicides is limited. A novel family VIII carboxylesterase gene, estwx, hydrolyzed the ester bond cleavage of AOPP herbicides to form the corresponding acid and alkyl side chain alcoho ...
DOI:
10.1016/j.procbio.2019.03.013