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Artigos de revistas sobre o tema "Germination"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 25 de julho de 2025

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1

Pee, K. C., C. E. Johnson, E. W. Bush, and E. A. Drummond. "SUB-OPTIMUM TEMPERATURE GERMINATION OF 15 WATERMELON CULTIVARS." HortScience 25, no. 8 (1990): 862a—862. http://dx.doi.org/10.21273/hortsci.25.8.862a.

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Seed of 15 watermelon cultivars were evaluated for germinating ability at sub-optimum temperatures. Seeds of each cultivar were exposed to 12.8, 15.6, 18.3, 21.1, and 30.0°C for 8 days in a germinator in accordance to standard seed testing rules. Radical emergence was evaluated on day 5 and day 8. None of the cultivars germinated at 12.8C after 8 days exposure. At 15.6°C, 'Red-N-Sweet' and `Blackstone' had germinations of 54 and 40 percent respectively on day 5, and both increased to over 80 percent on day 8. At 18.3°C `Red-N-Sweet' and `Blackstone' exhibited at least 90 percent germination af

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2

Vrzalová, Jana, and Pavel Knot. "The effect of seed age and treatment by Proradix method on germinability and initial growth of selected meadow grass (Poa pratensis) varieties." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 59, no. 5 (2011): 309–14. http://dx.doi.org/10.11118/actaun201159050309.

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The goal of the study conducted in 2008 and 2010 at the Research Forage Production Station in Vatín was to investigate the influence of seed age and seed treatment by Proradix method on the germination dynamics, total germinating capacity and initial growth rate of selected meadow grass varieties. The testing was carried out in controlled conditions on the germinator. Our results indicate that the age of seed significantly affects both the germination dynamics and the total germinating capacity. On day 7 after the establishment of the trial, a significantly higher germinating capacity was obse

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3

Aime, M. C., and O. K. Miller Jr. "Delayed germination of basidiospores in temperate species of Crepidotus (Fr.) Staude." Canadian Journal of Botany 80, no. 3 (2002): 280–87. http://dx.doi.org/10.1139/b02-009.

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Delayed basidiospore germination (endogenous dormancy) for a number of species of Crepidotus (Agaricales: Crepidotaceae) is reported for the first time. Ninety percent of recovered single spore isolates germinated between 18 and 36 weeks after collection; average germination was 25 weeks after collection. The period in which 90% of germinations occurred was between 17 February and 19 April, with 50% of recovered isolates germinating in March. Many abiotic factors were experimentally manipulated in an effort to reduce or alter the necessary incubation period without effect. The latent period wa

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4

Ribeiro-Oliveira, J. P., M. A. Ranal, and M. A. Boselli. "Water Dynamics on Germinating Diaspores: Physiological Perspectives from Biophysical Measurements." Plant Phenomics 2020 (December 6, 2020): 1–16. http://dx.doi.org/10.34133/2020/5196176.

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We demonstrated that classical biophysical measurements of water dynamics on germinating diaspores (seeds and other dispersal units) can improve the understanding of the germination process in a simpler, safer, and newer way. This was done using diaspores of cultivated species as a biological model. To calculate the water dynamics measurements (weighted mass, initial diffusion coefficient, velocity, and acceleration), we used the mass of diaspores recorded over germination time. Weighted mass of germinating diaspores has a similar pattern, independent of the physiological quality, species, or

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Cruz, Oscar, Juan García-Duro, Mercedes Casal, and Otilia Reyes. "Can the mother plant age of Acacia melanoxylon (Leguminosae) modulate the germinative response to fire?" Australian Journal of Botany 65, no. 7 (2017): 593. http://dx.doi.org/10.1071/bt17083.

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Acacia melanoxylon R.Br. (Leguminosae) is one of the most widely distributed tree species in the world. It has significant commercial use but can be a danger to natural ecosystems as an invader species. For these reasons it is necessary to have a deep knowledge about its germinative response to fire and the role the mother plant age plays in that response. In this work we assessed the effects of the interaction of the mother plant age with the main fire agents (smoke, charcoal, ash and heat) on the germinative response of A. melanoxylon. To reach this aim, germination tests were conducted with

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6

Zhang, Heng, Zhao Tang Xu, and Kun He. "Effects of Disused Battery on Contents of Protein and Nucleic Acid during the Germination of Wheat Seeds." Advanced Materials Research 955-959 (June 2014): 213–16. http://dx.doi.org/10.4028/www.scientific.net/amr.955-959.213.

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The aim was to study the effect of extract of disused battery on wheat germination. The germination characteristics such as germination rate, germinating, germination index, vigor index, and content changes of protein and nucleic acid in wheat grain were determined by germination bed method. The results showed that the extract concentration of disused battery affected wheat germination. With the increase of extract concentration of disused battery, the germination rate, germinating, germination index, vigor index and content of nucleic acid gradually dropped, only protein content added.

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Dantas, Bárbara França, Luciana de Sá Ribeiro, and Carlos Alberto Aragão. "Physiological response of cowpea seeds to salinity stress." Revista Brasileira de Sementes 27, no. 1 (2005): 144–48. http://dx.doi.org/10.1590/s0101-31222005000100018.

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This work aimed to evoluate physiological response of cowpea (Vigna unguiculata L. Walp) seeds submitted to salt stress. Seeds of cultivars 'Epace-10'; 'Canapu' and 'Pitiúba' of cowpea, were submitted to germination test in germinator at 25(0)C, in "germitest" papers imbibed in distilled water or in 0, 10, 50, 100 and 200mol m-3 NaCl solutions. At the first and second counting of the germination test, normal seedlings were accounted, weighted and dried, obtaining data for vigor, total germination, fresh matter weight and dry matter weight. The seedlings hypocotyls, root and total length were m

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8

Moreno-Pizani, María Alejandra, Asdrubal Jesus Farias-Ramirez, Hugo Thaner dos Santos, et al. "Qualitative and Quantitative Evaluation Protocol of Baccharis Seed Germination." Journal of Agricultural Science 11, no. 3 (2019): 421. http://dx.doi.org/10.5539/jas.v11n3p421.

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Baccharis trimera (Less.) DC (E1) and Baccharis crispa Spreng. (E2) possess potential antimicrobial and anti-inflammatory properties. Qualitative and quantitative information on seed germination on these species is scarce. The objective of this investigation was to establish a protocol for evaluating seed germination of E1 and E2 and to analice the scoring and curve fitting by the Germinator package, for different periods of germination were between 0.93 and 0.99. Both species showed differences in germinability and mean germination time, 27 days for E1 and 20 days for E2. The germination disp

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9

Liu, Mengzhou, Ning Qiao, Bing Zhang, et al. "Differential responses of the seed germination of three functional groups to low temperature and darkness in a typical steppe, Northern China." PeerJ 10 (December 1, 2022): e14485. http://dx.doi.org/10.7717/peerj.14485.

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Seed germination is a key stage in the life history of plants, which has a crucial effect on plant community structure. Climate change has substantially altered the surface soil temperature and light availability, which can affect seed germination. However, whether the seed germination of different functional groups is affected by the interactions of light and temperature remains unclear. Under laboratory conditions, we examined the effects of low temperature and darkness, as well as their interaction, on the seed germination of 16 species belonging to three plant functional groups (annual and

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Teodoro, M. S., M. C. S. Alves, M. N. Lacerda, and L. M. S. Araújo. "Influência do NaClO na germinação de sementes de alface em Parnaíba-PI." Revista Verde de Agroecologia e Desenvolvimento Sustentável 10, no. 4 (2015): 33. http://dx.doi.org/10.18378/rvads.v10i4.3405.

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<p>O presente trabalho foi desenvolvido em condições de casa de vegetação situada em Parnaíba-PI, município onde predominam altas temperaturas. Objetivou-se avaliar a germinação de diferentes lotes de sementes de alface antes e após a embebição em solução de hipoclorito de sódio (NaCIO). O delineamento experimental foi em blocos casualisados, com os tratamentos dispostos em arranjo fatorial 2 x 7 (duas variáveis como pré-germinativos: com imersão em NaClO e sem imersão em NaClO, e sete cultivares de alface), com quatro repetições. As variáveis analisadas foram: Primeira contagem do teste

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Faúndez, Ángela, Carlos R. Magni, Eduardo Martínez-Herrera, et al. "Effect of the Soil Matric Potential on the Germination Capacity of Prosopis chilensis, Quillaja saponaria and Cryptocarya alba from Contrasting Geographical Origins." Plants 11, no. 21 (2022): 2963. http://dx.doi.org/10.3390/plants11212963.

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As a consequence of the megadrought in Central Chile, it is expected that most of the distribution of woody species will be narrowed in the northern limits because of restrictions imposed by soil matric potential on seed germination. In this study, we analyzed the effect of the soil matric potential on seed germination and initial recruitment of the sclerophyllous species Prosopis chilensis, Quillaja saponaria and Cryptocarya alba from contrasting geographic origins (i.e., seed sources). We evaluated the germination capacity (%) under different matric potentials (i.e., 0, −6, −33, −750 and −12

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12

Foolad, Majid R., Prakash Subbiah, and Liping Zhang. "Common QTL Affect the Rate of Tomato Seed Germination under Different Stress and Nonstress Conditions." International Journal of Plant Genomics 2007 (February 10, 2007): 1–10. http://dx.doi.org/10.1155/2007/97386.

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The purpose of this study was to determine whether the rates of tomato seed germination under different stress and nonstress conditions were under common genetic controls by examining quantitative trait loci (QTL) affecting such traits. Seeds of BC1 progeny of a cross between a slow-germinating tomato breeding line and a rapid-germinating tomato wild accession were evaluated for germination under nonstress as well as cold, salt, and drought stress conditions. In each treatment, the most rapidly-germinating seeds were selected, grown to maturity, and subjected to molecular marker analysis. A se

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Valšíková, Magdaléna, Jaroslav Jedlička, Ivana Mezeyová, and Seda Guler. "Influence Of Magnetic Field On Onion Seed Germination." Acta Horticulturae et Regiotectuare 18, no. 1 (2015): 11–15. http://dx.doi.org/10.1515/ahr-2015-0003.

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Abstract Dynamics of onion seeds germination with different germinability and magnetic field influence with variable intensity on onion germinative activity was determined in trials. Amika F1 hybrid marked low germinative activity. On 21th day after trial foundation it reached germinability of 34–46%. Halftime of this germination was reached on fourth to fifth day after trial foundation. Exhibition variety had convenient germination activity, 70–91%. Halftime of its germinability was reached on sixth to eighth day after trial foundation. On the base of submitted results there can be said that

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Müller, Eike, Elisabeth J. Cooper, and Inger Greve Alsos. "Germinability of arctic plants is high in perceived optimal conditions but low in the field." Botany 89, no. 5 (2011): 337–48. http://dx.doi.org/10.1139/b11-022.

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Sexual reproduction is crucial for plant populations to track and adapt to climate change, but it is uncertain to what degree arctic vascular plants reproduce by seed. Several studies on arctic species show low germination. To re-examine seed germination and evaluate factors limiting sexual reproduction, seeds of 6–22 arctic species were germinated in five different, increasingly more realistic, conditions. Thirteen out of 15 species that were tested in an earlier study in Svalbard, Norway, germinated better in our study. Compared with perceived optimal conditions in a growth chamber, average

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15

Permatasari, Ressy Angli, Sutrisno Sutrisno, I. Wayan Budiastra, et al. "Design and Performance Test of Brown Rice Germinator with Automatic Environmental Control System for Production of Germinated Brown Rice." Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) 14, no. 1 (2025): 171. https://doi.org/10.23960/jtep-l.v14i1.171-181.

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A germinator equipped with automatic environmental control system has been developed to produce the high quality of germinated brown rice. The germinator consists of germination chamber, temperature and relative humidity sensors, relays, actuator, and display panel so the germination process can be set up and controlled. The performance test were carried out covering the technical reliability of the system and the capability of germinator to produce germinated brown rice. The test results show that the brown rice germinator with an automatic environmental control system worked very well. The u

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16

Liu, Yongjie, and Fujiang Hou. "Effects of three-dimensional soil heterogeneity on seed germination in controlled experiments." Journal of Plant Ecology 14, no. 1 (2020): 1–9. http://dx.doi.org/10.1093/jpe/rtaa070.

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Abstract Aims Seed germinations react to their local growing conditions, but the impacts of soil heterogeneity on seed germinations are not well known. Methods Effects of three-dimensional soil heterogeneity on seed germinations of grasses species were explored, where two levels of such soil heterogeneity were created via alternatively filling nutrient-poor and nutrient-rich substrate in pot in all directions. Patch sizes of the two heterogeneity levels are around 7.5 and 15 cm, respectively. Fifty seeds of each of the grasses species (Lolium perenne and Elymus nutans) were set either in these

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M. Olivas, Regine. "SEED GERMINATION OF TOMATO (SOLANUM LYCOPERSICUM) USING PAPAYA (CARICA PAPAYA L.) FRUIT EXTRACTS AS NATURALLY OCCURRING GERMINATION INHIBITOR AND GIBBERELLIC ACID IN VARIOUS SEED TREATMENTS." International Journal of Advanced Research 9, no. 11 (2021): 923–26. http://dx.doi.org/10.21474/ijar01/13822.

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Seed Germination is a vital process in plant growth and development. It is very crucial in crop production. Control of seed germination can proceed if there are presence of naturally occurring germination inhibitors such as papaya fruit extracts. Promotion of seed germination on the other hand, can be obtain from plant growth hormones such as gibberellic acid. Various seed treatments used in the experiment were the following: T1-unwashed, fresh T2-washed, fresh T3-washed, air-dried T4-washed, fresh and T5-washed, fresh.Twenty (20) seeds were counted for each treatment. Distilled water as the g

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Ariola, Christel Joy M., Raeiza A. Castrence, Rico-John N. Diguinat, Romel C. Naveros, and Novelyn D. Buhong. "The influence of various pre-sowing treatments on germination of akle (Albizia acle (Blanco) Merr.) seeds." Macedonian Journal of Ecology and Environment 27, no. 1 (2025): 5–10. https://doi.org/10.59194/mjee252715a.

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The objective of this study was to evaluate the most suitable pre-treatment method that will increase germination of Albizia acle seeds. The experiment was carried out in a Completely Randomized Design (CRD) and four hundred Akle seeds were used as an experimental material subjected to different pre-sowing treatments on germination such as Treatment 0 (T0) - control, Treatment 1 (T1) - hot soaking, Treatment 2 (T2) - cold soaking, Treatment 3 (T3) - sulfuric acid, and Treatment 4 (T4) - mechanical scarification, with four replications with twenty assessment units per replication. The effect of

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Herranz, José M., Miguel Á. Copete, Pablo Ferrandis, and Elena Copete. "Intermediate complex morphophysiological dormancy in the endemic Iberian Aconitum napellus subsp. castellanum (Ranunculaceae)." Seed Science Research 20, no. 2 (2010): 109–21. http://dx.doi.org/10.1017/s0960258510000048.

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AbstractSeeds of Aconitum napellus subsp. castellanum were physiologically dormant at maturity in early autumn, with underdeveloped embryos. Thus they have morphophysiological dormancy (MPD). Embryos in fresh seeds were on average 1.01 mm long, and they had to grow to 3.60 mm before radicle emergence. Cold stratification at 5°C for 5 months with light enhanced the mean embryo length to 2.73 mm (SE = 0.13) and seed germination to 20%. However, with higher temperatures (15/4, 20/7, 25/10, 28/14 and 32/18°C) embryo growth was small, with no seeds germinating. Optimal germination was achieved afte

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Copete, Miguel Á., José M. Herranz, and Pablo Ferrandis. "Seed germination ecology of the endemic Iberian winter annualsIberis pectinataandZiziphora aragonensis." Seed Science Research 19, no. 3 (2009): 155–69. http://dx.doi.org/10.1017/s0960258509990079.

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AbstractThe germination ecology of the winter annual Iberian endemicsIberis pectinataandZiziphora aragonensiswas investigated in order to better understand adaptations of rare species to their natural habitat and to improveex-situpropagation techniques and management of their habitat. Specifically, we analysed the following aspects: (1) influence of temperature, light conditions and seed age on germination patterns; (2) phenology of germination; (3) germinative response of buried seeds to seasonal temperature changes; and (4) temperature requirements for induction and breaking of secondary dor

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Camargo, Haron Victor Ferreira, Letícia Siqueira Walter, Mônica Moreno Gabira, and Dagma Kratz. "Pre-germinative treatments and seed storage of Psidium cattleyanum Sabine morphotypes." COLLOQUIUM AGRARIAE 16, no. 4 (2020): 102–9. http://dx.doi.org/10.5747/ca.2020.v16.n4.a387.

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This study aimed to evaluate the germination behavior of two morphotypes of P. cattleyanumsubmitted to storage and pre-germinative treatments. The experiment was designed in a factorial scheme 2 x 3 x 3 (morphotypes x storage periods x pre-germinative treatments) completely randomized, using for each treatment 5 replicates with 30 seeds. The seeds were stored in semipermeable packages in a cold chamber at 5 ± 2 °C, for 14, 45,and 90 days. After each storage period, the seeds were submitted to treatments to overcome dormancy: immersion in water at 80 °C,kept in imbibition for 24 and 48 hand con

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Northam, Francis E., Robert H. Callihan, and Michelle M. Puchalski. "Coleorhizal Hairs in Germinating Medusahead (Taeniatherum caput-medusae)." Weed Science 44, no. 4 (1996): 884–89. http://dx.doi.org/10.1017/s004317450009487x.

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This study documented an undescribed aspect of medusahead germination behavior. Fibrous hairs were consistently observed growing from the coleorhizal surface of germinating medusahead seeds. Three medusahead accessions were investigated to determine temperature effects on coleorhizal hair growth and germination. Coleorhizal hair emergence at 8 C was first noted at 72 h. By 24 h at 18 C, 15 to 74% of seeds had hairs, and at 28 C, hairs were visible on 75 to 94% of seeds. Germination at 18 and 28 C was 80% at 96 h; germination at 8 C did not exceed 80% until 168 h. Less than 4% of germinated see

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Kettner, Keith, and Hector Eduardo Pérez. "Dose–response of germinating Rudbeckia mollis (Asteraceae) seeds exposed to various thermal scenarios." Seed Science Research 22, no. 3 (2012): 191–97. http://dx.doi.org/10.1017/s0960258512000086.

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AbstractTemperature is a key environmental signal regulating germination. A thorough understanding of how seed populations respond to various temperatures can inform end-users regarding effective establishment strategies and forms the basis for questions related to a taxon's thermo-biology. Although abundant information exists regarding germination responses of economically important crops to several temperature scenarios, much less is known concerning the seed biology of wild germplasm. To address this, we examined the germination response of non-dormant Rudbeckia mollis seeds to various dose

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Zhang, Heng, Zhao Tang Xu, Yu Liang Han, and Zhi Chen. "Effect of Disused Battery on Germination Characteristics of Wheat." Advanced Materials Research 610-613 (December 2012): 284–87. http://dx.doi.org/10.4028/www.scientific.net/amr.610-613.284.

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The aim was to study the effect of disused battery on wheat germination. The germination characteristics such as germination rate, germinating, germination index, vigor index, and activity changes of amylase and protease were determinated by germination bed method. The results showed that the disused battery affected wheat germination. With the increase of extract concentration of disused battery, the vigor index based on germination rate at 72h dropped, which indicated that the decrement was more pronounced than germination index of that. The change trends of amylase and protease activity wer

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Fay, Amy M., Steven M. Still, and Mark A. Bennett. "Optimum Germination Temperature of Rudbeckia fulgida." HortTechnology 3, no. 4 (1993): 433–35. http://dx.doi.org/10.21273/horttech.3.4.433.

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Germination trials of three seedlots were conducted over a temperature gradient for 14 days to determine the optimal germination temperature for the Black-eyed Susan (Rudbeckia fulgida Ait.). The optimal germination temperature for R. fulgida seeds was 30 ± 1C. All three seedlots began germination (radicle emergence) on the second day at 30.2C. By day four, all seedlots sur-passed 50% germination, with three seedlots germinating 53%, 52%, and 73%. Mean germination percentages were higher between 28.3 and 32.6C than at temperatures above or below this range. Significantly higher germination per

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Prentis, Peter J., Noel M. Meyers, and Peter B. Mather. "Significance of post-germination buoyancy in Helmholtzia glaberrima and Philydrum lanuginosum (Philydraceae)." Australian Journal of Botany 54, no. 1 (2006): 11. http://dx.doi.org/10.1071/bt04208.

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Post-germination buoyancy has been proposed to reduce seedling establishment in amphibious plants if seeds germinate under flooded conditions. We tested this hypothesis in two amphibious species, Helmholtzia glaberrima (Hook.) and Philydrum lanuginosum (Banks & Sol.). We tested whether seed germination was affected by different levels of inundation, whether seedlings germinating underwater floated and whether seedlings established after prolonged floatation at rates comparable to seedling establishment in waterlogged soil. Germination underwater and in waterlogged soil was similar for both

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Anderson*, Natalie, and David Byrne. "Stratification Methods for Rosa Germination." HortScience 39, no. 4 (2004): 808B—808. http://dx.doi.org/10.21273/hortsci.39.4.808b.

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Poor germination in Rosa has been an obstacle to breeding programs for years. Rose breeders generally stratify rose seed under cool, moist conditions for 4-10 weeks by planting directly into the seedling flat/bed or in a small container followed by planting the germinating seed into the seedling flat/bed. This experiment used 9 genotypes and compared these two approaches combined with variations in the stratification media (sand, perlite, sphagnum moss and Sunshine Mix #4). Over all stratification media and genotypes, germination was not influenced by whether the seed was stratified directly i

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Basto, Sofía, and Claudia Ramírez. "Effect of light quality on Tabebuia rosea seed germination." Universitas Scientiarum 20, no. 2 (2014): 191. http://dx.doi.org/10.11144/javeriana.sc20-2.elqt.

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Tabebuia rosea germination capacity and rate have been examined under light and dark conditions. However, seeds responses to light quality, in particular to short and mid-wavelengths, are not well known. We hypothesized that short wavelengths would have a positive effect on rosea germination. The effects of short, mid and long-wavelengths on germination capacity, rate (germination rate index, germination rate R50, a devised index of germination rate R50´ and peak value), mean daily germination and germination value were evaluated. Light quality had little effect on germination capacity; it was

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Brito, Leonardo Pereira da Silva, Thatiany Teixeira Bezerra, Elaine Maiara Bonfim Nunes, Márkilla Zunete Beckmann Cavalcante, and José Alves Siqueira Filho. "TEMPO DE ARMAZENAMENTO E TEMPERATURA NO COMPORTAMENTO GERMINATIVO DE Schinopsis brasiliensis ENGLER." Nativa 8, no. 4 (2020): 552–57. http://dx.doi.org/10.31413/nativa.v8i4.10292.

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A temperatura atua intimamente sobre a velocidade de absorção de água e igualmente sobre as reações bioquímicas que determinam tanto a velocidade e uniformidade de germinação. Por conseguinte, a viabilidade das sementes após períodos de armazenamento também pode ser um fator limitante no processo germinativo, minimizando o vigor. Diante disso, o presente trabalho teve como objetivo avaliar distintos períodos de armazenamento e temperaturas no comportamento germinativo de sementes de Schinopsis brasiliensis. O delineamento experimental adotado foi inteiramente casualizado, distribuídos em esque

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Tan, Jia W., Sharon T. Kester, Kai Su, David F. Hildebrand, and Robert L. Geneve. "Seed Priming and Pericarp Removal Improve Germination in Low-Germinating Seed Lots of Industrial Hemp." Crops 2, no. 4 (2022): 407–14. http://dx.doi.org/10.3390/crops2040028.

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Industrial hemp (Cannabis sativa L.) is experiencing a resurgence in North America as an agricultural commodity. Germplasm improvement for locally adapted and stable cannabinoid production is an industry priority. This study used seed priming and pericarp removal to recover seedlings in low-germinating seed lots that could prove important for plant breeding and germplasm conservation. Both seed priming and pericarp removal improved early seed germination, but pericarp removal was more effective in improving overall final germination percentages. On average, pericarp removal improved final germ

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Pacheco, Mauro Vasconcelos, Vilmar Luciano Mattei, Valderez Pontes Matos, and Lucia Helena de Moura Sena. "Germination and vigor of Dimorphandra mollis benth. seeds under different temperatures and substrates." Revista Árvore 34, no. 2 (2010): 205–13. http://dx.doi.org/10.1590/s0100-67622010000200002.

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The Dimorphandra mollis Benth. - Caesalpiniaceae is a native forest species coming from the Cerrado and Caatinga due to its economical and ecological use, which justifies the studies on seed germination. In this work, germinative performance of D. mollis seeds were studied in different conditions of temperature regime and substrate. The experimental delineation used was completely randomized in factorial 4 x 4 (4 substrates -sand, coconut fiber, vermiculite and paper towel; and 4 temperatures: 25, 30, 35 and 20-30ºC), with four replications of 25 seeds each. The following parameters were evalu

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Kim, Kyoung-Nam. "Comparison of Seed Germinating Vigor, Germination Speed and Germination Peak in Kentucky Bluegrass Cultivars under Different Germination Conditions." Journal of the Korea Society of Environmental Restoration Technology 18, no. 3 (2015): 23–38. http://dx.doi.org/10.13087/kosert.2015.18.3.23.

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Baird, James H., and Ray Dickens. "Germination and Emergence of Virginia Buttonweed (Diodia virginiana)." Weed Science 39, no. 1 (1991): 37–41. http://dx.doi.org/10.1017/s0043174500057830.

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Virginia buttonweed seeds germinated at temperatures between 15 and 40 C, with optimal germination occurring at 25 or 30 C in 12 h light alternated with 15 to 25 or 20 to 30 C in darkness, respectively. Germination rate was lower in continuous darkness than in light. Germination was reduced under simulated water stress conditions with less than 10% of seeds germinating at osmotic potentials below −0.3 MPa. Overall seed germination was reduced under simulated flooding conditions; greater germination occurred in aerated water than in unaerated water. Maximum germination occurred at pH 6. Seedlin

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Chiu, S. N., та M. P. Quine. "Central limit theorem for germination-growth models in ℝd with non-Poisson locations". Advances in Applied Probability 33, № 4 (2001): 751–55. http://dx.doi.org/10.1239/aap/1011994026.

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Seeds are randomly scattered in ℝd according to an m-dependent point process. Each seed has its own potential germination time. From each seed that succeeds in germinating, a spherical inhibited region grows to prohibit germination of any seed with later potential germination time. We show that under certain conditions on the distribution of the potential germination time, the number of germinated seeds in a large region has an asymptotic normal distribution.

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Chiu, S. N., та M. P. Quine. "Central limit theorem for germination-growth models in ℝd with non-Poisson locations". Advances in Applied Probability 33, № 04 (2001): 751–55. http://dx.doi.org/10.1017/s0001867800011162.

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Seeds are randomly scattered in ℝ d according to an m-dependent point process. Each seed has its own potential germination time. From each seed that succeeds in germinating, a spherical inhibited region grows to prohibit germination of any seed with later potential germination time. We show that under certain conditions on the distribution of the potential germination time, the number of germinated seeds in a large region has an asymptotic normal distribution.

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Atluri, Swaroopa, Katerina Ragkousi, Donna E. Cortezzo, and Peter Setlow. "Cooperativity Between Different Nutrient Receptors in Germination of Spores of Bacillus subtilis and Reduction of This Cooperativity by Alterations in the GerB Receptor." Journal of Bacteriology 188, no. 1 (2006): 28–36. http://dx.doi.org/10.1128/jb.188.1.28-36.2006.

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ABSTRACT The GerA nutrient receptor alone triggers germination of Bacillus subtilis spores with l-alanine or l-valine, and these germinations were stimulated by glucose and K+ plus the GerK nutrient receptor. The GerB nutrient receptor alone did not trigger spore germination with any nutrients but required glucose, fructose, and K+ (GFK) (termed cogerminants) plus GerK for triggering of germination with a number of l-amino acids. GerB and GerA also triggered spore germination cooperatively with l-asparagine, fructose, and K+ and either l-alanine or l-valine. Two GerB variants (termed GerB*s) t

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Debelo, Megersa. "Effect of Different Grow out Test on the Seedling Anatomy and Germination Attributes of Faba Bean (<i>vicia faba</i> L.)." American Journal of Biological and Environmental Statistics 10, no. 3 (2024): 42–48. http://dx.doi.org/10.11648/j.ajbes.20241003.11.

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Ability to geminate is very important attributes of seed quality. Critical factors for germination include moisture, oxygen, temperature and light. In combination with the factor’s germination media and place to layout are very important. Germination test was conducted on Ashebeka variety of Faba bean. The aim of the study was to test the effect of different germination Condition on seedling anatomy and germination potential of the seed. Germination room (GR) with air conditioning, Germination chamber with Adjustable (Relative humidity, Temperature and light) and Normal room were used. 50seeds

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Benzina, Imene, Farid Bekdouche, and Abdelkrim Si Bachir. "Post-fire dynamics of recolonization by Cistus plants in the Aleppo pine and Cork oak forests in Bejaia region, central north Algeria." Environmental & Socio-economic Studies 12, no. 2 (2024): 40–47. http://dx.doi.org/10.2478/environ-2024-0011.

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Abstract In August 2021, very intense fires swept through various forested areas in northern Algeria, particularly in Kabylia. The population dynamics of Cistus salviifolius and Cistus monspeliensis were studied along a post-fire successional gradient during the first nine months (September 2021 – May 2022), in two forest communities: the Cork oak (Quercus suber) and the Aleppo pine (Pinus halepensis) forests in the coastal zone of Bejaia province. The Cistus spp. germinations were counted monthly in each forest on 10 plots of 1 m2, evenly distributed along 2 transects of 45 m each. The result

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Matias, Janete Rodrigues, Renata Conduru Ribeiro, Carlos Alberto Aragão, Gherman Garcia Leal Araújo, and Bárbara França Dantas. "Physiological changes in osmo and hydroprimed cucumber seeds germinated in biosaline water." Journal of Seed Science 37, no. 1 (2015): 07–15. http://dx.doi.org/10.1590/2317-1545v37n1135472.

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Biosaline agriculture has been a viable alternative for agricultural production in regions with lack of good quality water. To enable the cultivation of vegetables in high electrical conductivities, seed priming has been used to increase tolerance to stress caused by use of brackish water. We aimed to evaluate the efficiency of osmo and hydropriming in cucumber seeds cv. Caipira germinated biosaline in water, regarding germination and biochemical changes during the germinative process. The experimental design was totally randomized, with four replications of 50 seeds or 10 seedlings, in a fact

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Bajwa*, Vikramjit S., and Curt Rom. "Effects of Osmotic Agents on Apple Pollen Grain Germination." HortScience 39, no. 4 (2004): 762B—762. http://dx.doi.org/10.21273/hortsci.39.4.762b.

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Osmotic agents used to prevent apple pollen grain germination were studied in vitro by applying 10 μL of solutions to germinating apple pollen on germinating and growth media. Seven concentrations (0%, 0.25%, 0.5%, 1%, 2%, 5% and 10%) of the solution were prepared for each chemical and the characteristics of pH, EC, and osmotic potential were measured. Apple pollen was dispersed onto the media in petri dishes. Micro drops of solution were then applied to marked areas. Dishes were then placed in germination cabinets at 25 °C. Cumulative percentage pollen germination was calculated 4, 8, 12, and

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Brasileiro, Beatriz Gonçalves, Denise Cunha F. S. Dias, Vicente Wagner Dias Casali, Maria Carmen Bhering, and Paulo Roberto Cecon. "Effects of temperature and pre-germinative treatments on seed germination of Talinum triangulare (Jacq. ) willd (Portulacaceae)." Revista Brasileira de Sementes 32, no. 4 (2010): 151–57. http://dx.doi.org/10.1590/s0101-31222010000400017.

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The objective of this study was to evaluate the effects of temperature, substrate and pre-germinative treatments on T. triangulare seeds. Four temperatures (constant 20, 25, 30 °C and alternate 20-30 °C) and two types of seeding (on paper and between paper), with light, were evaluated. The pre-germinative treatments evaluated included: immersion in water (24 hours), immersion in 6% hypochlorite solution (1 hour), immersion in 0.2% potassium nitrate solution (24 hours), immersion in 0.05% gibberellin solution (24 hours) and the control (untreated seeds). The highest germination percentage was o

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Bell, David T. "The Process of Germination in Australian Species." Australian Journal of Botany 47, no. 4 (1999): 475. http://dx.doi.org/10.1071/bt98007.

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Australian species germinate under the combination of environmental conditions where the potential for survival is enhanced. Most species also have dormancy mechanisms that prevent all seeds from germinating in any particular rainfall event. Immaturity of the embryo prevents some species from germinating until environmental parameters change to more favourable conditions. Seed-coat inhibitors may also delay germination, with some seed requiring ingestion and dispersal by animals or a series of rainfall cycles to facilitate germination. Adaptations to fire include germination mechanisms facilit

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Zhang, Heng, Guang Chen, Heng Xu, et al. "Transcriptome Analysis of Rice Embryo and Endosperm during Seed Germination." International Journal of Molecular Sciences 24, no. 10 (2023): 8710. http://dx.doi.org/10.3390/ijms24108710.

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Seed germination is a complex, multistage developmental process that is an important step in plant development. In this study, RNA-Seq was conducted in the embryo and endosperm of unshelled germinating rice seeds. A total of 14,391 differentially expressed genes (DEGs) were identified between the dry seeds and the germinating seeds. Of these DEGs, 7109 were identified in both the embryo and endosperm, 3953 were embryo specific, and 3329 were endosperm specific. The embryo-specific DEGs were enriched in the plant-hormone signal-transduction pathway, while the endosperm-specific DEGs were enrich

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Pagliarini, Maximiliano Kawahata, Kamila de Almeida Monaco-Mello, Carla Regina Baptista Gordin, and Luiz Carlos Ferreira de Souza. "Seeds germination of Guizotia abyssinica (L.f.) Cass. stored in different environments and packages." Research, Society and Development 10, no. 3 (2021): e22010313241. http://dx.doi.org/10.33448/rsd-v10i3.13241.

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Seed quality is defined by several factors such as genetic, physical, physiological and sanitary attributes. Even with all good factors involved, germinating power loss occurs. However, this loss may be reduced by performing procedures to maintain quality, as storage local and packaging. Thus, the objective of the work was to identify the best environment and packaging for storing niger seeds by analyzing germination and seedling biometry. Samples were separated according to treatments being three types of packaging: paper bag (permeable), plastic bag (semi-permeable) and glass container (impe

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Eremrena, P. O., and S. I. Mensah. "Effect of plant growth regulators and nitrogenous compounds on seed germination of pepper (Capsicum frutescens L)." Journal of Applied Sciences and Environmental Management 20, no. 2 (2016): 242–50. http://dx.doi.org/10.4314/jasem.v20i2.3.

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The seed germination of Capsicum frutescens L. was investigated through various methods, namely, washing and air dry storage treatments, applications of gibberelic acid (GA3), Kinetin, potassium nitrite (KNO2) and potassium nitrate (KNO3) to improve germination of seeds in view of poor germination reported. The seeds were subjected to the following treatments namely washing to remove the slimy coverings; air-drying at various time-intervals; incubated in different concentrations of GA3, Kinetin, KNO2 and KNO3. The treatments were subjected to light or dark germinations at 300C and radicle emer

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Kumar, Prabal, Kalpana Tyagi, Manish Singh, and Devendra Kumar. "Effect of Temperature, Media and Light on Germination of Prinsepia utilis Royle Seeds." Ecology, Environment and Conservation 28 (2022): 348–52. http://dx.doi.org/10.53550/eec.2022.v28i07s.057.

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Effect of temperature and media was studied on seed germination of Prinsepia utilis Royle (bhekal). Germination tests were conducted at four different temperatures viz. 5±1 o C, 15±1 o C, 25±1 o C and ambient room temperature with three germination media viz. top of germination paper (TP), between of paper (BP) and quartz sterilized sand at 90±5% relative humidity in a seed germinator for 21 days. Media and Temperature significantly affected seed traits. Seeds germinated well over wide range of temperature 15±1 o C, to ambient room. Significantly, higher germination percentage, germination val

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Danion, François, Norman van Rhijn, Alexandre C. Dufour, et al. "Aspergillus fumigatus, One Uninucleate Species with Disparate Offspring." Journal of Fungi 7, no. 1 (2021): 30. http://dx.doi.org/10.3390/jof7010030.

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Establishment of a fungal infection due to Aspergillus fumigatus relies on the efficient germination of the airborne conidia once they penetrate the respiratory tract. However, the features of conidial germination have been poorly explored and understood in this fungal species as well as in other species of filamentous fungi. We show here that the germination of A. fumigatus is asynchronous. If the nutritional environment and extensive gene deletions can modify the germination parameters for A. fumigatus, the asynchrony is maintained in all germinative conditions tested. Even though the causes

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Naylor, R. E. L. "An analysis of the differences in germination of seed lots of perennial ryegrass in response to artificial ageing." Journal of Agricultural Science 112, no. 3 (1989): 351–57. http://dx.doi.org/10.1017/s0021859600085804.

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SummaryStatistically sound methods for analysing the results of germination tests were used to quantify and assess differences between seed lots of perennial ryegrass (Lolium perenne L.) subjected to accelerated ageing. Ageing altered not only the proportion of seed not germinating but also the mean germination time and the synchrony of germination. Seed lots differed in these three parameters before and after ageing. The responses to ageing of mean germination time and synchrony were not regular and a simulation of trie possible effects of ageing on germination suggested this irregularity mig

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Kłosińska, Urszula, Elżbieta U. Kozik, Marcin Nowicki, and Todd C. Wehner. "Low temperature seed germination of cucumber: genetic basis of the tolerance trait." Journal of Horticultural Research 21, no. 2 (2013): 125–30. http://dx.doi.org/10.2478/johr-2013-0031.

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ABSTRACT Cucumber (Cucumis sativus L.) germinates in an optimal temperature ranging from 24 to 28 °C. In order to develop cultivars with low temperature germination ability, knowledge regarding its genetic basis is needed. In our earlier study, we identified the accession PI 390953 as chilling tolerant and a good cold germinator. The objective of our present study was to compare cold germinability of cold tolerant breeding line B 5669 with PI 390953, and to measure the inheritance of this trait. At 13 °C, both tested cultigens (B 5669, PI 390953) showed the highest germinability and we found n

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Xuan, Tran Dang, La Hoang Anh, Truong Ngoc Minh, and Tran Dang Khanh. "Factors Promote Germination and Initial Growth of Monochoria vaginalis." International Letters of Natural Sciences 59 (October 2016): 48–54. http://dx.doi.org/10.18052/www.scipress.com/ilns.59.48.

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The purpose of study was conducted to examine factors that influence on germination of Monochoria vaginalis, a major and problematic weed in paddy fields. It was found that seed coats of barnyardgrass and Monochoria itself strongly promoted germination of Monochoria seeds. Germinating rice seeds caused germination induction of Monochoria, but dehulled rice and rice hulls did not play a role. In general, rice root exudates from 2 to 22 day after germination did not exert significant influence on germination and initial growth of Monochoria. The increase of rice seeds showed no remarkable impact

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