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1. The impacts of altitude and seed pretreatments on seedling emergence of Syrian juniper (Juniperus drupacea (Labill.) Ant. et Kotschy)

Author:
Yucedag, Cengiz; Cetin, Mehmet; Ozel, Halil Baris; Abo Aisha, Adel Easa Saad; Alrabiti, Osama B. Muragaa; AL.JAMA, Akram Mohamed Omar
Source:
Ecological processes 2021 v.10 no.1 pp. 7
ISSN:
2192-1709
Subject:
seedling emergence; seedling production,   etc   ; Juniperus; altitude; citric acid; cold; extinction; forest management; glass; governance; seed germination;     Show all 11 Subjects
Abstract:
... BACKGROUND: Syrian juniper is an economically important species and in danger of extinction. For these reasons, the best seedling production methods of the species should be determined and its plantations should be established. The aim of the study is to examine the impacts of altitude and different pretreatment combinations of cold and warm stratifications, citric acid, shaking seeds in bottles w ...
DOI:
10.1186/s13717-020-00276-z

2. Effect of silver nanoparticles on salt tolerance of Satureja hortensis l. during in vitro and in vivo germination tests

Author:
Nejatzadeh, Fatemeh
Source:
Heliyon 2021 v.7 no.2 pp. e05981
ISSN:
2405-8440
Subject:
seedling growth; seedlings,   etc   ; Satureja hortensis; greenhouses; nanosilver; salinity; salt stress; salt tolerance; seed germination; toxicity; Iran;     Show all 11 Subjects
Abstract:
... This study to evaluate the effects of silver nanoparticles on the salinity tolerance of (Satureja hortensis L.). The study done based on factorial experiment using a completely randomized design, in a laboratory and greenhouse in Islamic Azad University of Khoy, Iran in 2015. Silver nanoparticles concentrations were 0, 40, 60, and 80 ppm and salt concentrations 0, 30, 60, 90, and 120 mM l⁻¹. Germi ...
DOI:
10.1016/j.heliyon.2021.e05981

3. Design and implementation of anti-leakage planting system for transplanting machine based on fuzzy information

Author:
Jin, Xin; Yuan, Yanwei; Ji, Jiangtao; Zhao, Kaixuan; Li, Mingyong; Chen, Kaikang
Source:
Computers and electronics in agriculture 2020 v.169 pp. 105204
ISSN:
0168-1699
Subject:
seedlings,   etc   ; algorithms; monitoring; planting;     Show all 4 Subjects
Abstract:
... Selective operation of potted seedlings on transplanter is the fundamental way to improve the survive rate after the transplanting operation. However, due to the problems of high transplanting speed and complicated working condition of the transplanter, higher requirements for information detection, mechanism control and their coordination are needed. In this paper, the Fuzzy C-means (FCM) method ...
DOI:
10.1016/j.compag.2019.105204

4. Do plants adaptively respond to future competition?

Author:
Simpson-Young, Charlotte; Bonser, Stephen P.
Source:
Acta oecologica 2020 v.103 pp. 103530
ISSN:
1146-609X
Subject:
seedlings,   etc   ; grasses; herbaceous plants;     Show all 3 Subjects
Abstract:
... Plants can detect the presence of competitors through the change the spectral quality of light induced by potentially competing plants. This change in spectral quality can induce shade avoidance plasticity to maximise light acquisition. We examined how simulated competition as seedlings impact performance when plants are exposed to real competition later in life. We predicted that individuals expe ...
DOI:
10.1016/j.actao.2020.103530

5. A UAV Open Dataset of Rice Paddies for Deep Learning Practice

Author:
Yang, Ming-Der; Tseng, Hsin-Hung; Hsu, Yu-Chun; Yang, Chin-Ying; Lai, Ming-Hsin; Wu, Dong-Hong
Source:
Remote Sensing 2021 v.13 no.7
ISSN:
2072-4292
Subject:
seedlings,   etc   ; accuracy; architecture; classification; data collection; detection; paper; rice;     Show all 8 Subjects
Abstract:
... Recently, unmanned aerial vehicles (UAVs) have been broadly applied to the remote sensing field. For a great number of UAV images, deep learning has been reinvigorated and performed many results in agricultural applications. The popular image datasets for deep learning model training are generated for general purpose use, in which the objects, views, and applications are for ordinary scenarios. Ho ...
DOI:
10.3390/rs13071358

6. Functional robustness of seed dispersal by a remnant frugivore population on a defaunated tropical island

Author:
Kastner, Martin; Pollock, Henry S.; Savidge, Julie A.; Fricke, Evan C.; Rogers, Haldre S.
Source:
Biotropica 2021 v.53 no.2 pp. 359-366
ISSN:
0006-3606
Subject:
seedlings,   etc   ; ecological function; frugivores; seed dispersal; urbanization; Guam;     Show all 6 Subjects
Abstract:
... We surveyed zoochorous seedlings at an urbanized site on Guam with a remnant population of frugivores, and an otherwise similar site lacking all frugivores. Both seedling richness and abundance were much higher at the site with frugivores, providing hope that small populations can retain or restore ecological function. Abstract in Fino' CHamoru is available with online material. ...
DOI:
10.1111/btp.12926

7. Interactions between As and Se upon long exposure time and effects on nutrients translocation in golden flaxseed seedlings

Author:
Sousa, Giselle V.; Teles, Vânia L.G.; Pereira, Eduardo G.; Modolo, Luzia V.; Costa, Letícia M.
Source:
Journal of hazardous materials 2021 v.402 pp. 123565
ISSN:
0304-3894
Subject:
seedlings,   etc   ; Linum usitatissimum; absorption; chlorosis; death; exposure duration; linseed; toxicity;     Show all 8 Subjects
Abstract:
... Se is a beneficial nutrient for some plant species, while As is considered a toxic element, even at low concentrations. This study investigated the interaction between As and Se on golden flaxseed (Linum usitatissimum L.) seedlings to better understand the extent of Se in the mitigation of As uptake and translocation. In addition, co-exposure experiments allowed to determine how As and Se affected ...
DOI:
10.1016/j.jhazmat.2020.123565

8. Native Plant Production in Chile. Is It Possible to Achieve Restoration Goals by 2035?

Author:
Acevedo, Manuel; Álvarez-Maldini, Carolina; Dumroese, R. Kasten; Bannister, Jan R.; Cartes, Eduardo; González, Marta
Source:
Land 2021 v.10 no.1
ISSN:
2073-445X
Subject:
seedlings,   etc   ; biodiversity; climate change; forests; indigenous species; land; Chile;     Show all 7 Subjects
Abstract:
... Facing rapid loss of biodiversity as a consequence of climate change, Chile has formally pledged to restore 600,000 ha of native forest by 2035. This effort, however, has not considered the amount and quality of native plants required to meet this pledge. Thus, we examined data collected during the annual, government-conducted census of small- and medium-sized nurseries from central Chile, which a ...
DOI:
10.3390/land10010071

9. Evaluation of heavy metal phytotoxicity to Helianthus annuus L. using seedling vigor index-soil model

Author:
Zhao, Xin; Joo, Jin Chul; Kim, Jae Young
Source:
Chemosphere 2021 v.275 pp. 130026
ISSN:
0045-6535
Subject:
seedling growth; seedlings,   etc   ; Helianthus annuus; heavy metals; hyperaccumulators; mathematical models; phytotoxicity; prediction; root growth; seed germination; vigor;     Show all 11 Subjects
Abstract:
... A mathematical model to estimate seedling vigor index (SVI) of sunflower (Helianthus annuus L.) seeds in soils contaminated with heavy metals was developed. This model was used to quantitatively describe the complex effects of heavy metal concentrations in soils (Cₛ) on seed germination and seedling growth. Negative linear regressions between relative seed germination percentage (GP), root length ...
DOI:
10.1016/j.chemosphere.2021.130026

10. Effects of S-metolachlor on wheat (Triticum aestivum L.) seedling root exudates and the rhizosphere microbiome

Author:
Qu, Qian; Li, Yan; Zhang, Zhenyan; Cui, Hengzheng; Zhao, Qianqiu; Liu, Wanyue; Lu, Tao; Qian, Haifeng
Source:
Journal of hazardous materials 2021 v.411 pp. 125137
ISSN:
0304-3894
Subject:
seedling growth; seedlings,   etc   ; Burkholderiaceae; Rhizobiaceae; Triticum aestivum; hydrogen peroxide; metabolomics; metolachlor; microbiome; phytotoxicity; rhizosphere; rhizosphere bacteria; root exudates; wheat;     Show all 14 Subjects
Abstract:
... S-metolachlor (S-ME) is a common chloroacetanilide herbicide. Here, we investigated the effects of S-ME on wheat seedling growth and explored via metabolomics the driver through which S-ME changes the rhizosphere microbiome. The results indicated that 4 mg/kg S-ME had a strong inhibitory effect on plant growth by inducing hydrogen peroxide (H₂O₂) levels. The richness of the rhizosphere microbiome ...
DOI:
10.1016/j.jhazmat.2021.125137

11. Inflection point position as a potential diagnostic tool for the estimation of sulfur concentration in Eucalyptus seedlings

Author:
Chaves, Carolina Mata Machado Barbosa; Silva, Enilson de Barros; de Oliveira, Luiz Felipe Ramalho; Santos, Lauana Lopes dos; Santana, Reynaldo Campos
Source:
Journal of plant nutrition 2021 v.44 no.5 pp. 742-754
ISSN:
1532-4087
Subject:
seedling growth; seedlings,   etc   ; Eucalyptus urophylla; diagnostic techniques; dry matter accumulation; leaves; malnutrition; nutrient solutions; reflectance; sodium sulfate; spectral analysis; sulfur;     Show all 12 Subjects
Abstract:
... Specific techniques of spectral analysis to determine the nutritional stress caused by sulfur (S) may allow the early detection of its deficiency and directed supplementation in the corrective fertilization of plants. The aim of this study was to verify the alterations caused by S deficiency as well as to verify whether the spectral reflectance, that is, the inflection point position (IPP), obtain ...
DOI:
10.1080/01904167.2020.1845368

12. Allelopathic Effects of Sphaeranthus suaveolens on Seed Germination and Seedling Growth of Phaseolus vulgaris and Oryza sativa

Author:
Laizer, Hudson C.; Chacha, Musa N.; Ndakidemi, Patrick A.
Source:
Advances in agriculture 2021 v.2021
ISSN:
2314-7539
Subject:
seedling growth; seedlings,   etc   ; Oryza sativa; Phaseolus vulgaris; Sphaeranthus; agriculture; allelochemicals; allelopathy; chlorophyll; noxious weeds; seed germination; water solubility;     Show all 12 Subjects
Abstract:
... Weeds with allelopathic effect have been reported to cause significant damage in agriculture particularly in smallholder farming systems. This study assessed the allelopathic effects of different concentrations of crude extract of a noxious weed Sphaeranthus suaveolens on seed germination and seedling growth of Phaseolus vulgaris and Oryza sativa by examining germination, seedling height, and tota ...
DOI:
10.1155/2021/8882824

13. Boreal conifer seedling responses to experimental competition removal during summer drought

Author:
Shovon, Tanvir Ahmed; Gagnon, Daniel; Vanderwel, Mark C.
Source:
Ecosphere 2021 v.12 no.2 pp. e03391
ISSN:
2150-8925
Subject:
seedling growth; seedlings,   etc   ; Picea glauca; canopy; conifers; drought; forests; landscapes; root crown; species recruitment; summer; trees; understory; Canada;     Show all 14 Subjects
Abstract:
... The southern range limit of white spruce (Picea glauca) in western Canada is believed to arise from effects of moisture limitation on seedling recruitment. Within stands near white spruce’s range limit, the adverse effects of water limitation on seedling growth and survival may be compounded by competition from neighboring understory plants and trees. To test this hypothesis, we conducted a compet ...
DOI:
10.1002/ecs2.3391

14. Fine mapping and characterization of two novel quantitative trait loci for early seedling growth in rice

Author:
Cheng, Peng; Cao, Ling- Jie; Bai, Chen; Ashikari, Motoyuki; Song, Xian-Jun
Source:
Planta 2021 v.253 no.2 pp. 56
ISSN:
0032-0935
Subject:
seedling growth; seedlings,   etc   ; carbon dioxide fixation; cell division; chromosomes; genes; genetic analysis; genomics; leaf blade; photosynthesis; quantitative traits; rice; transpiration;     Show all 13 Subjects
Abstract:
... MAIN CONCLUSION: Two novel QTLs for early seedling growth in rice were fine mapped, with one of which to a 4-kb identical to the known GW6a gene, and another one to a 43-kb region that contains six candidate genes. Leaves are extremely important for plant photosynthesis: the size and shape of which determine the rate of transpiration, carbon fixation and light interception, and their robust growth ...
DOI:
10.1007/s00425-021-03576-6

15. The perfect microsite: How to maximize Posidonia oceanica seedling settlement success for restoration purposes using ecological knowledge

Author:
Alagna, Adriana; Zenone, Arturo; Badalamenti, Fabio
Source:
Marine environmental research 2020 v.161 pp. 104846
ISSN:
0141-1136
Subject:
seedlings,   etc   ; Posidonia oceanica; environmental knowledge;     Show all 3 Subjects
Abstract:
... The use of sexual propagules to restore seagrass meadows has raised increasing attention in the last years as seed-based strategies avoid impacts on donor beds while preserving genetic diversity in restored populations. However, the availability of suitable microsites for seedling establishment at transplantation locations is crucial in order to achieve positive outcome of restoration actions. In ...
DOI:
10.1016/j.marenvres.2019.104846

16. Design of a 4 DOF parallel robot arm and the firmware implementation on embedded system to transplant pot seedlings

Author:
K., Rahul; Raheman, Hifjur; Paradkar, Vikas
Source:
Artificial intelligence in agriculture 2020 v.4 pp. 172-183
ISSN:
2589-7217
Subject:
seedlings,   etc   ; algorithms; equations; user interface;     Show all 4 Subjects
Abstract:
... This paper presents a firmware design and its implementation on a real time embedded system for driving a 4 DOF parallel robot arm. The firmware primarily comprised of two components to produce motion of the robot arm: a) generation of continuous position coordinates and b) generation of actuating signals. These two components were processed in two different microcontrollers with a common communic ...
DOI:
10.1016/j.aiia.2020.09.003

17. Rhizobacteria improve the germination and modify the phenolic compound profile of pepper (Capsicum annum L.)

Author:
Lobato Ureche, Miguel Andrés; Pérez-Rodriguez, María Micaela; Ortiz, Ramiro; Monasterio, Romina Paula; Cohen, Ana Carmen
Source:
Rhizosphere 2021 v.18 pp. 100334
ISSN:
2452-2198
Subject:
seedling growth; seedling production; seedlings,   etc   ; Azospirillum brasilense; Capsicum annuum; Cellulosimicrobium; Enterobacter; Ochrobactrum; Pseudomonas; abiotic stress; carbon; naringenin; pepper; phenolic acids; plant growth-promoting rhizobacteria; polyphenols; rhizosphere; rhizosphere bacteria; rutin; seed germination; seed inoculation; systemic acquired resistance; vigor;     Show all 23 Subjects
Abstract:
... The percentage of germination and the vigor of seeds are major determinants for an efficient seedling production to successfully establishment a crop. Some Capsicum annuum germinate within a few days, but others take until 21 days. Pepper seeds have significant amounts of free and bound polyphenols that are modified during the germination process. Phenolic compounds are used by seed to scavenge fr ...
DOI:
10.1016/j.rhisph.2021.100334

18. Nutrient retranslocation in Larix principis-rupprechtii Mayr relative to fertilization and irrigation

Author:
Wan, Fangfang; Ross-Davis, Amy L.; Davis, Anthony S.; Song, Xiehai; Chang, Xiaochao; Zhang, Jin; Liu, Yong
Source:
New forests 2021 v.52 no.1 pp. 69-88
ISSN:
0169-4286
Subject:
seedling growth; seedling production; seedlings,   etc   ; Larix gmelinii var. principis-rupprechtii; biomass production; broadleaved trees; conifers; electrical conductivity; evergreen trees; fertilizer rates; fertilizers; leaves; nutrient content; nutrient management; overhead irrigation; plant adaptation; soil fertility; subsurface irrigation;     Show all 18 Subjects
Abstract:
... Nutrient retranslocation from senescing foliage to perennial organs is critical for nutrient conservation and a mechanism of plant adaptation to low-fertility soils. And it has been well documented for evergreen species and for deciduous broadleaf tree species. Meanwhile, subirrigation (SI) and fertilization are used to improve the production efficiency of seedlings, however, little is known about ...
DOI:
10.1007/s11056-020-09783-5

19. Transcriptome analysis revealed the regulation of gibberellin and the establishment of photosynthetic system promote rapid seed germination and early growth of seedling in pearl millet

Author:
Wu, Bingchao; Sun, Min; Zhang, Huan; Yang, Dan; Lin, Chuang; Khan, Imran; Wang, Xiaoshan; Zhang, Xinquan; Nie, Gang; Feng, Guangyan; Yan, Yanhong; Li, Zhou; Peng, Yan; Huang, Linkai
Source:
Biotechnology for biofuels 2021 v.14 no.1 pp. 94
ISSN:
1754-6834
Subject:
seedling growth; seedlings,   etc   ; Cenchrus americanus; bioethanol; biotechnology; gene expression; gene expression regulation; genes; gibberellins; imbibition; photosynthesis; seed germination; seed growth; transcriptome; transcriptomics;     Show all 15 Subjects
Abstract:
... BACKGROUND: Seed germination is the most important stage for the formation of a new plant. This process starts when the dry seed begins to absorb water and ends when the radicle protrudes. The germination rate of seed from different species varies. The rapid germination of seed from species that grow on marginal land allows seedlings to compete with surrounding species, which is also the guarantee ...
DOI:
10.1186/s13068-021-01946-6

20. The rice aldehyde oxidase OsAO3 gene regulates plant growth, grain yield, and drought tolerance by participating in ABA biosynthesis

Author:
Shi, Xingyu; Tian, Quanxiang; Deng, Ping; Zhang, Wenhua; Jing, Wen
Source:
Biochemical and biophysical research communications 2021 v.548 pp. 189-195
ISSN:
0006-291X
Subject:
seedling growth; seedlings,   etc   ; Arabidopsis; abscisic acid; aldehyde oxidase; biosynthesis; drought tolerance; genes; grain yield; mannitol; mutants; mutation; panicles; phenotype; research; rice; seed germination; spikelets; water stress;     Show all 19 Subjects
Abstract:
... Abscisic acid (ABA) regulates many aspects of plant growth and development and the responses to abiotic stresses. Arabidopsis aldehyde oxidase 3 (AAO3) catalyzes the final step of ABA biosynthesis. We cloned and functionally characterized a novel aldehyde oxidase gene, OsAO3, the rice homolog of AAO3. OsAO3 was expressed in germinated seeds, roots, leaves, and floral organs, particularly in vascul ...
DOI:
10.1016/j.bbrc.2021.02.047