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1. Design and Testing of Reverse-Rotating Soil-Taking-Type Hole-Forming Device of Pot Seedling Transplanting Machine for Rapeseed

Author:
Wei Quan; Mingliang Wu; Zhenwei Dai; Haifeng Luo; Fanggang Shi
Source:
Agriculture (Basel) 2022 v.12 no.3 pp. -
ISSN:
2077-0472
Subject:
seedlings,   etc   ; agriculture; mouth; porosity; rapeseed; soil;     Show all 6 Subjects
Abstract:
... To address the problem whereby the size of the hole formed by the existing hole-forming device of hole-punching transplanters is significantly inconsistent with the theoretical size as it is impacted by the inserting and lifting methods, a scheme for eliminating the forward speed of the whole machine by the horizontal linear velocity of reverse rotation of the hole-forming mechanism is proposed to ...
DOI:
10.3390/agriculture12030319

2. Natural hybridization in seed stands of seven Mexican Pinus species

Author:
Javier Hernández-Velasco; José Ciro Hernández-Díaz; J. Jesús Vargas-Hernández; Valerie Hipkins; José Ángel Prieto-Ruíz; Alberto Pérez-Luna; Christian Wehenkel
Source:
New forests 2022 v.53 no.3 pp. 487-509
ISSN:
0169-4286
Subject:
seedlings,   etc   ; forests; hybrid species; hybridization; vigor;     Show all 5 Subjects
Abstract:
... Natural hybridization can manifest different evolutionary results, such as accelerating differentiation and facilitating speciation through the rapid origin of new biochemical compounds, physiological or morphological phenotypes that allow hybrid species to occupy new habitats, which for parental species would be inaccessible. However, these expectations are not always fulfilled, because natural h ...
DOI:
10.1007/s11056-021-09868-9

3. Crop Cycle Length Determines Optimal Transplanting Date for Seedlings from Hybrid True Potato Seeds

Author:
Luuk C. M. van Dijk; Olivia C. Kacheyo; Michiel E. de Vries; Willemien J. M. Lommen; Paul C. Struik
Source:
Potato research 2022 v.65 no.2 pp. 435-460
ISSN:
0014-3065
Subject:
seedlings,   etc   ; crop failure; diploidy; frost; potatoes; research;     Show all 6 Subjects
Abstract:
... The technology of hybrid breeding in diploid potatoes creates opportunities to design novel and improved cultivation systems based on hybrid true potato seeds. A promising cultivation pathway to produce seed or ware tubers is by transplanting greenhouse-raised seedlings into the field. This study explored the effects of transplanting date and seedling age on tuber yield, using greenhouse-raised se ...
DOI:
10.1007/s11540-021-09524-x

4. Combined GWAS and QTL mapping revealed candidate genes and SNP network controlling recovery and tolerance traits associated with drought tolerance in seedling winter wheat

Author:
Ahmed Sallam; Shamseldeen Eltaher; Ahmad M. Alqudah; Vikas Belamkar; P. Stephen Baenziger
Source:
Genomics 2022 v.114 no.3 pp. 110358
ISSN:
0888-7543
Subject:
seedlings,   etc   ; chromosomes; drought tolerance; genes; genomics; winter wheat;     Show all 6 Subjects
Abstract:
... To date, very little research on drought tolerance has been conducted at the seedling stage in winter wheat. In this study, two types of traits, namely tolerance and recovery traits, associated with drought tolerance were scored in biparental mapping population (BPP) and association mapping population (A-set). The results of this study revealed no or weak significant correlation between the two ty ...
DOI:
10.1016/j.ygeno.2022.110358

5. Pathotype Identification and Virulence Variation in Cochliobolus sativus in China

Author:
Lin Chen; Quanjie Yao; Fengtao Wang; Yunxing Pang; Xiaowei Lang; Dan Sun; Jun Zhou; Jing Feng; Ruiming Lin
Source:
Plant disease 2022 v.106 no.2 pp. 585-594
ISSN:
0191-2917
Subject:
seedlings,   etc   ; Bipolaris sorokiniana; barley; climate; pathotypes; virulence; wheat; China;     Show all 8 Subjects
Abstract:
... Spot blotch caused by Cochliobolus sativus has become an important disease in the wheat-growing regions in China that has resulted from changes in the regional climate, agricultural cultivation patterns, and the susceptible wheat varieties that are widely grown. Little information is available about virulence variability and pathogenic specialization of the C. sativus isolates from major wheat-gro ...
DOI:
10.1094/PDIS-06-21-1248-RE

6. Bark-stripping of common buckthorn by goats during managed browsing on bur oak savannas

Author:
Neal D. Mundahl; Ryan Walsh
Source:
Biological invasions 2022 v.24 no.2 pp. 481-493
ISSN:
1387-3547
Subject:
seedlings,   etc   ; Quercus macrocarpa; Rhamnus cathartica; bark; goats; leaves; savannas; woodlands;     Show all 8 Subjects
Abstract:
... Goats are being used increasingly to manage woody invasive plants in woodland habitats, but their specific impacts on those plants over a period of time during active, periodic browsing has not been documented. This study investigated bark-stripping by goats browsing on common buckthorn in savanna habitats (75 goats/hectare, 5 to 7 days), focusing on possible size-selective feeding and the cumulat ...
DOI:
10.1007/s10530-021-02656-8

7. Bioavailability and methylation of bulk mercury sulfide in paddy soils: New insights into mercury risks in rice paddies

Author:
Hong Li; Yunyun Li; Wenli Tang; Yunpeng Liu; Lirong Zheng; Nan Xu; Yu-Feng Li; Diandou Xu; Yuxi Gao; Jiating Zhao
Source:
Journal of hazardous materials 2022 v.424 pp. 127394
ISSN:
0304-3894
Subject:
seedlings,   etc   ; bioavailability; mercury; methylation; methylmercury compounds; paddies; remediation; rice; sulfides;     Show all 9 Subjects
Abstract:
... Mercury sulfide (HgS) constitutes the largest Hg reservoir in the lithosphere but has long been considered to be not bioavailable and a minor participant in Hg biogeochemical cycling. Herein, we report that bulk α-HgS can be dissolved and methylated in paddy soils, especially with rice culture. Bulk α-HgS exposure did not affect rice growth compared to the control group but significantly increased ...
DOI:
10.1016/j.jhazmat.2021.127394

8. Row anchor selection classification method for early-stage crop row-following

Author:
Chunyu Wei; Hailong Li; Junyi Shi; Guoyang Zhao; Huaiqu Feng; Longzhe Quan
Source:
Computers and electronics in agriculture 2022 v.192 pp. 106577
ISSN:
0168-1699
Subject:
seedlings,   etc   ; agriculture; corn; data collection; electronics; neural networks; precision agriculture;     Show all 7 Subjects
Abstract:
... The field navigation tasks of agricultural robots are the basis for implementing field management projects in the early stages of seedlings guided by precision agriculture policies. High accuracy and execution speed of navigation tasks are needed for the escalating field machine implementations in a significantly unstructured and irregular field environment, contributing to the difficulty and urge ...
DOI:
10.1016/j.compag.2021.106577

9. Changes in Watering Frequency Stimulate Differentiated Adaptive Responses among Seedlings of Different Beech Populations

Author:
Georgios Varsamis; George C. Adamidis; Theodora Merou; Ioannis Takos; Katerina Tseniklidou; Panayiotis G. Dimitrakopoulos; Aristotelis C. Papageorgiou
Source:
Biology 2022 v.11 no.2 pp. -
ISSN:
2079-7737
Subject:
seedlings,   etc   ; Fagus; atmospheric precipitation; climate change; drought; ecosystems; models; summer; Greece;     Show all 9 Subjects
Abstract:
... Seasonality, rather than annual precipitation levels, is expected to affect the adaptive responses of plant populations under future climate change. To estimate adaptive traits’ variation, we conducted a common garden experiment with two beech populations from contrasting climatic origins (Evros with longer drought intervals during summer and higher precipitation seasonality, and Drama representin ...
DOI:
10.3390/biology11020306

10. Conservation of Dehaasia pugerensis (Lauraceae), a tree endemic to East Java (Indonesia) and last collected in 1940

Author:
Hendra Helmanto; Enggal Primananda; Dipta S. Rinandio; Iyan Robiansyah
Source:
Journal for nature conservation 2022 v.65 pp. 126096
ISSN:
1617-1381
Subject:
seedlings,   etc   ; Lauraceae; conservation status; extinction; indigenous species; risk; surveys; trees; Indonesia;     Show all 9 Subjects
Abstract:
... Dehaasia pugerensis Koord. & Valeton is a threatened Indonesian Lauraceae species. It is an endemic tree known only from Jember Regency in East Java. To enhance the conservation of D. pugerensis, we conducted a population survey in several locations in Jember where the species were previously collected. The objectives were to: i) assess the current population status of D. pugerensis, ii) collect p ...
DOI:
10.1016/j.jnc.2021.126096

11. Gibberellic acid biosynthesis during dehydration phase of priming increases seed vigour of tomato

Author:
S. Seethalakshmi; R. Umarani; M. Djanaguiraman
Source:
Plant growth regulation 2022 v.97 no.2 pp. 255-262
ISSN:
0167-6903
Subject:
seedlings,   etc   ; biosynthesis; gibberellic acid; imbibition; plant growth; seed germination; tomatoes; vigor;     Show all 8 Subjects
Abstract:
... Priming of seed is intended to reduce the time to germination through activation of pre-germinative processes. Seed priming is controlled hydration followed by a drying (dehydration) process. The physiological processes during hydration (imbibition) were studied in detail in tomato. In contrast, gibberellic acid changes during the dehydration phase were not studied in detail. We hypothesize that t ...
DOI:
10.1007/s10725-021-00783-9

12. Light and regeneration patterns following silvicultural gap establishment in Quercus dominated stands of the northern Cumberland Plateau, USA

Author:
Clinton P. Patterson; Zachary J. Hackworth; John M. Lhotka; Jeffrey W. Stringer
Source:
Forest ecology and management 2022 v.505 pp. 119871
ISSN:
0378-1127
Subject:
seedlings,   etc   ; Liriodendron tulipifera; Quercus; administrative management; forest ecology; forests; reproduction; transmittance;     Show all 8 Subjects
Abstract:
... We assessed short-term light and regeneration dynamics following silvicultural gap creation in intermediately productive oak (Quercus)-dominated stands of the Northern Cumberland Plateau, USA. We established 12 experimental units comprising a harvest gap (30-m radius) and a matrix zone extending 30 m beyond the circumference of the gap. Midstory removal was performed using manual felling and chemi ...
DOI:
10.1016/j.foreco.2021.119871

13. Development of Ogura CMS lines in Indian cauliflower and their characterization using agro-morphological traits and mtDNA markers

Author:
Shrawan Singh; P. Kalia; Manisha Mangal; Vijay Prakash; B.R. Parihar
Source:
Scientia horticulturae 2022 v.291 pp. 110589
ISSN:
0304-4238
Subject:
seedlings,   etc   ; cauliflower; cytoplasmic male sterility; flower size; hybrids; introgression; mitochondrial DNA; stigma;     Show all 8 Subjects
Abstract:
... Cytoplasmic male sterility (CMS) system is most important genetic mechanism for affordable and genetically homogenous hybrid seed production. The present study was aimed to evaluate the CMS lines and their maintainers for floral traits as well as assess suitability of mitochondrial DNA (mtDNA) markers to distinguish the fertile/sterile plants at seedling stage. Morphological observations revealed ...
DOI:
10.1016/j.scienta.2021.110589

14. Effects of insect herbivory on seedling mortality in restored and remnant tropical forest

Author:
Andy J. Kulikowski II; Rakan A. Zahawi; Karen D. Holl
Source:
Restoration ecology 2022 v.30 no.1 pp. e13467
ISSN:
1061-2971
Subject:
seedlings,   etc   ; anthropogenic activities; community structure; ecological restoration; ecosystems; mortality; trees; tropical forests;     Show all 8 Subjects
Abstract:
... Insect herbivory is one of the major drivers of seedling mortality in the tropics and influences plant abundances and community composition. Anthropogenic disturbance can alter patterns of insect herbivory with potential consequences on plant communities in restored forests. We planted seedlings of early‐ and later‐stage successional tree species in 13–15‐year‐old restored and remnant tropical for ...
DOI:
10.1111/rec.13467

15. Enhancement of seed germination of yarrow with gibberellic acid, potassium nitrate, scarification, or hydropriming

Author:
Somayeh Rohani Nejad; Zohreh Emami Bistgani; Allen V. Barker
Source:
Journal of crop improvement 2022 v.36 no.3 pp. 335-349
ISSN:
1542-7536
Subject:
seedlings,   etc   ; Achillea millefolium; dormancy; farms; gibberellic acid; potassium nitrate; seed germination; seeds;     Show all 8 Subjects
Abstract:
... Poor germination and the length of time required for the growth of seedlings appropriate for planting in the farm affect the cultivation of medicinal plants such as yarrow (Achillea millefolium L). This study investigated the abilities of different concentrations of gibberellic acid (GA₃) and potassium nitrate (KNO₃), mechanical scarification, and hydropriming to improve seed germination and dorma ...
DOI:
10.1080/15427528.2021.1968553

16. BBX16 mediates the repression of seedling photomorphogenesis downstream of the GUN1/GLK1 module during retrograde signalling

Author:
Nil Veciana; Guiomar Martín; Pablo Leivar; Elena Monte
Source:
The new phytologist 2022 v.234 no.1 pp. 93-106
ISSN:
0028-646X
Subject:
seedlings,   etc   ; chloroplasts; cotyledons; etiolation; lincomycin; phenotype; photomorphogenesis; radiation resistance; transcription (genetics); transcription factors;     Show all 10 Subjects
Abstract:
... Plastid‐to‐nucleus retrograde signalling (RS) initiated by dysfunctional chloroplasts impact photomorphogenic development. We have previously shown that the transcription factor GLK1 acts downstream of the RS regulator GUN1 in photodamaging conditions to regulate not only the well established expression of photosynthesis‐associated nuclear genes (PhANGs) but also to regulate seedling morphogenesis ...
DOI:
10.1111/nph.17975

17. CRISPR/Cas9-engineered mutation to identify the roles of phytochromes in regulating photomorphogenesis and flowering time in soybean

Author:
Fen Zhao; Xiangguang Lyu; Ronghuan Ji; Jun Liu; Tao Zhao; Hongyu Li; Bin Liu; Yanxi Pei
Source:
crop journal 2022 pp. -
ISSN:
2214-5141
Subject:
seedlings,   etc   ; CRISPR-Cas systems; Glycine max; mutants; mutation; phenotype; photomorphogenesis; phytochrome; soybeans; tetraploidy;     Show all 10 Subjects
Abstract:
... Soybean (Glycine max) responds to ambient light variation by undergoing multiform morphological alterations, influencing its yield potential and stability in the field. Phytochromes (PHYs) are plant-specific red (R) and far-red (FR) light photoreceptors mediating photomorphogenesis and photoperiodic flowering. As an ancient tetraploid, soybean harbors four PHYA, two PHYB, and two PHYE paralogs. Ex ...
DOI:
10.1016/j.cj.2022.03.008

18. Canopy openness of individual tree promotes seed dispersal by scatter-hoarding rodents

Author:
Jie Chen; Wenwen Chen; Zhiyun Lu; Bo Wang
Source:
Forest ecology and management 2022 v.507 pp. 120016
ISSN:
0378-1127
Subject:
seedlings,   etc   ; administrative management; canopy; forest conservation; predation; risk; seed dispersal; trees; tropical forests;     Show all 9 Subjects
Abstract:
... Scatter-hoarding rodents are important seed predators and dispersers in various forest ecosystems and significantly influence the seed fate and seedling regeneration of many tree species. Canopy openness is believed to have an important influence on the foraging behavior of scatter-hoarding rodents, mainly because of the variation in predation risk between open and canopy microsites. Most of the c ...
DOI:
10.1016/j.foreco.2022.120016

19. Factors influencing Chinese flower and seedling family farms’ intention to use live streaming as a sustainable marketing method: an application of extended theory of planned behavior

Author:
Zhimin Wang; Jing Li; Panpan Chen
Source:
Environment, development and sustainability 2022 v.24 no.3 pp. 4299-4322
ISSN:
1387-585X
Subject:
seedlings,   etc   ; decision making; environment; equations; family farms; flowers; models; risk; surveys; trade; China;     Show all 11 Subjects
Abstract:
... Live streaming (LS) is considered to be a sustainable marketing strategy for regions with special agricultural products affected by the environment because of its potential to reduce sales risk and solve customer trust issues. This paper aims to explore the factors that influence Chinese flower and seedling family farms’ adoption intention of LS. An extended planning behavior theory (TPB) includin ...
DOI:
10.1007/s10668-021-01616-5

20. Floristic diversity, structure and regeneration status of Menfeskidus Monastery forest in Berehet District, North Shoa, central Ethiopia

Author:
Goshiye Negesse; Mesfin Woldearegay
Source:
Trees, forests and people 2022 v.7 pp. 100191
ISSN:
2666-7193
Subject:
seedlings,   etc   ; altitude; botanical composition; inventories; secondary forests; stakeholders; vegetation structure; woody plants; Ethiopia;     Show all 9 Subjects
Abstract:
... This study was conducted in Menfeskidus Monastery Forest in Berehet district North Shoa Zone of Amhara Regional State, Central Ethiopia, to investigate the floristic composition, species diversity, vegetation structure, and regeneration status of the forest. A systematic sampling design was employed to collect vegetation data. Sixty-six (66) quadrats of 20 m × 20 m were laid at every 100 m interva ...
DOI:
10.1016/j.tfp.2022.100191