scholarly journals Interaction of SiO2 Nanoparticles with Seed Prechilling on Germination and Early Seedling Growth of Tall Wheatgrass (Agropyron Elongatum L.)

2014 ◽  
Vol 16 (3) ◽  
pp. 25-29 ◽  
Author(s):  
Reyhane Azimi ◽  
Mohammad Jankju Borzelabad ◽  
Hassan Feizi ◽  
Amin Azimi
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Dry Weight ◽  
Sio2 Nanoparticles ◽  
Control Group ◽  
Agropyron Elongatum ◽  
Control Seed ◽  
Tall Wheatgrass ◽  
Early Seedling Growth ◽  
Early Seedling

Abstract The effect of six SiO2 nanosized concentrations (0, 5, 20, 40, 60 and 80 mg L-1) and three seed prechilling treatments (control, seed prechilling before nano SiO2 treatments, treatments of seed with nano SiO2 before prechilling) on germination and seedling growth of tall wheatgrass (Agropyron elongatum L.) were studied. Results indicated that application of SiO2 nanoparticles significantly increased seed germination of tall wheatgrass from 58 percent in control group to 86.3 and 85.7 percent in 40 and 60 mg L-1, respectively. Applying SiO2 nanoparticles increased dry weight of shoot, root and seedling of tall wheatgrass. Increasing concentration of nanoparticle from 0 up to 40 mg L-1 increased seedling weight around 49 percent compared to the control, nevertheless decreased under 60 and 80 mg L-1 treatments. In conclusion, seed prechilling in combination with SiO2 nanoparticles largely broke the seed dormancy for A. elongatum.

scholarly journals Impact of mixing treated industrial water with olive mill wastewater on vetch (Vicia sativa L.) germination and early seedling growth

2020 ◽  
pp. 124-132
Author(s):  
Naji K. Al Mefleh ◽  
Maher J. Tadros ◽  
Jalal A. Al tabbal
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Dry Weight ◽  
Olive Mill Wastewater ◽  
Industrial Water ◽  
Fresh Weight ◽  
Early Seedling Growth ◽  
Early Seedling ◽  
Water Treatments ◽  
Olive Mill

Vetch is a forage crop that is widely grown in high rainfall areas in Jordan for forage production and grazing. Growing vetch species out of the season will need irrigation, which is very expensive. In here, we propose application of wastewater or olive mill wastewater as alternative to the fresh water. An experiment was carried out to evaluate the effect of diluting the industrial water (IND) with olive mill wastewater (OMWW) on the vetch germination (GR) and early seedling growth under controlled conditions. The water treatments consisted of T1 (pure IND100%), T2 (mix of IND75% + OMWW25%), T3 (IND50% + OMWW50%), T4 (IND25% + OMWW75%) and T5 (pure OMWW100%) and tap water (control). This experiment was designed in a CRD with three replications for each treatment. Several measurements on the morphological and biochemical analysis were taken during this study such as seed germination (GR), as well as the seedlings fresh weight of shoot (FWS), dry weight of shoot (DWS), fresh weight of shoot (FWR), dry weight of root (DWR), shoot length (SL), root length (RL) and the ratios of DWS/DWR and SL/RL. The water treatments had a significant influence on data taken, in which the highest mean values of morphological characteristics were obtained under the T1, while the lowest were obtained under the T5 due to high phenols concentrations. The OMWW treatment showed an adverse effect on GR, DWS, DWR, SL, and RL due to low pH values (4.5) and high phenols concentration (1700 mg/L). In contrast, the industrial water showed low to moderate effect on the vetch seed germination. The means of DWS and DWR under T3 and T4 were not significantly different from each other but were different comparing with control. It is recommended that the use of a mixture of OMWW and the Industrial water will have a positive effect on Vetch growth.

scholarly journals The CBL-Interacting Protein Kinase NtCIPK23 Positively Regulates Seed Germination and Early Seedling Development in Tobacco (Nicotiana tabacum L.)

Plants ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 323
Author(s):  
Sujuan Shi ◽  
Lulu An ◽  
Jingjing Mao ◽  
Oluwaseun Olayemi Aluko ◽  
Zia Ullah ◽  
...  
Keyword(s):  
Protein Kinase ◽  
Seed Germination ◽  
Seedling Growth ◽  
Hypocotyl Elongation ◽  
Interacting Protein ◽  
Knock Out ◽  
Early Seedling Growth ◽  
Tobacco Seedlings ◽  
Early Seedling ◽  
Cotyledon Expansion

CBL-interacting protein kinase (CIPK) family is a unique group of serine/threonine protein kinase family identified in plants. Among this family, AtCIPK23 and its homologs in some plants are taken as a notable group for their importance in ions transport and stress responses. However, there are limited reports on their roles in seedling growth and development, especially in Solanaceae plants. In this study, NtCIPK23, a homolog of AtCIPK23 was cloned from Nicotiana tabacum. Expression analysis showed that NtCIPK23 is mainly expressed in the radicle, hypocotyl, and cotyledons of young tobacco seedlings. The transcriptional level of NtCIPK23 changes rapidly and spatiotemporally during seed germination and early seedling growth. To study the biological function of NtCIPK23 at these stages, the overexpressing and CRISPR/Cas9-mediated knock-out (ntcipk23) tobacco lines were generated. Phenotype analysis indicated that knock-out of NtCIPK23 significantly delays seed germination and the appearance of green cotyledon of young tobacco seedling. Overexpression of NtCIPK23 promotes cotyledon expansion and hypocotyl elongation of young tobacco seedlings. The expression of NtCIPK23 in hypocotyl is strongly upregulated by darkness and inhibited under light, suggesting that a regulatory mechanism of light might underlie. Consistently, a more obvious difference in hypocotyl length among different tobacco materials was observed in the dark, compared to that under the light, indicating that the upregulation of NtCIPK23 contributes greatly to the hypocotyl elongation. Taken together, NtCIPK23 not only enhances tobacco seed germination, but also accelerate early seedling growth by promoting cotyledon greening rate, cotyledon expansion and hypocotyl elongation of young tobacco seedlings.

scholarly journals Assessment on the Effects of Potting Media on Seed Germination and Early Seedling Growth of Pterocarpus erinaceus Poir

2021 ◽  
Vol 25 (6) ◽  
pp. 969-975
Author(s):  
M.K. Peter ◽  
SIN Agera ◽  
J.I. Amonum
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Growth Parameters ◽  
Cow Dung ◽  
Early Seedling Growth ◽  
Top Soil ◽  
Early Seedling ◽  
Potting Media ◽  
Number Of Leaves ◽  
Poultry Droppings

This study investigated the effects of potting media on seed germination and early seedling growth of Pterocarpus erinaceus Poir at the Forestry Nursery in Jos, Nigeria. Using Completely Randomized Design (CRD) with three replicates, laboratory-tested soil samples, top soil, sharp sand, sharp sand + top soil, sharp sand + top soil + cow dung and sharp sand + top soil + poultry droppings were used in various combinations to assess the growth parameters of P. erinaceus (germination percentage, emergence, plant height, number of leaves, length of leaves and stem diameter) for 12 weeks. Descriptive and inferential statistics were employed to analyze collected data. Result indicated that sharp sand + top soil + poultry droppings had the highest nitrogen concentration (2.19%), sharp sand + top soil + cow dung (2.07%), sharp sand + top soil (1.50%), top soil (0.72%) and Sharp sand (0.38%). Potting media with poultry droppings recorded an overall higher percentage germination of 42.9% by the end of the germination period. Analysis of variance (ANOVA) of collected data on combined soil aggregate on growth parameters indicated a significant (p<0.05) difference in plant height, number of leaves, leaf length and stem diameter. Potting with poultry dropping gave the best potting media growth results when compared to other treatments that enhanced seed germination and seedling growth of P. erinaceus. This superior observation of the poultry droppings incorporated potting mixtures over the cow dung provides an outstanding potentials to enhance P. erinaceus plantation establishment. Consequently, recommended for raising seedlings in the nursery as well as ensuring sustainable management.

scholarly journals Imbibition, Germination, and Early Seedling Growth Responses of Light Purple and Yellow Seeds of Red Clover to Distilled Water, Sodium Chloride, and Nutrient Solution

Sci ◽  
2019 ◽  
Vol 1 (2) ◽  
pp. 51 ◽  
Author(s):  
Ana Costa ◽  
Luís Dias ◽  
Alexandra Dias
Keyword(s):  
Sodium Chloride ◽  
Seed Germination ◽  
Nutrient Solution ◽  
Seedling Growth ◽  
Red Clover ◽  
Superior Performance ◽  
Distilled Water ◽  
Seed Imbibition ◽  
Early Seedling Growth ◽  
Early Seedling

The seeds of red clover are heteromorphic and two color morphs can be visually recognized, light purple and yellow, resulting from heterozygosity and recessive homozygosity at two loci. Here, we report the responses of seed imbibition, seed germination, and early seedling growth of the two morphs to distilled water, sodium chloride, and complete nutrient solution. The sensitivityof red clover seeds to treatments increased with the stage of development in what seems to be a cumulative process. No differences were found in seed imbibition between morphs or between treatments. In seedling growth, on the contrary, treatments were always effective, but differences between morphs were only observed in seeds that were treated with nutrient solution, whereas in the intermediate stage of seed germination, the effects by treatments were observed together with the appearance of differences between morphs in distilled water and in the treatment by sodium chloride solution. Simultaneously, the superior performance of the yellow morph that was found in germination, which appears to be a trait stable across cultivars of red clover seeds, turned into a superior performance of the light purple morph in seedling growth.

Role of HD2 genes in seed germination and early seedling growth in Arabidopsis

2011 ◽  
Vol 30 (10) ◽  
pp. 1969-1979 ◽  
Author(s):  
Adam Colville ◽  
Reem Alhattab ◽  
Ming Hu ◽  
Hélène Labbé ◽  
Tim Xing ◽  
...  
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Early Seedling Growth ◽  
Early Seedling

Physiological response of chickpea (Cicer arietinum L.) at early seedling stage under salt stress conditions

2019 ◽  
Author(s):  
Anita Mann ◽  
Gurpreet Kaur ◽  
Ashwani Kumar ◽  
Satish Kumar Sanwal ◽  
Jogendra Singh ◽  
...  
Keyword(s):  
Salt Stress ◽  
Salt Tolerance ◽  
Seedling Growth ◽  
Root Length ◽  
Dry Weight ◽  
Shoot Length ◽  
Seedling Stage ◽  
Tolerance Index ◽  
Early Seedling Growth ◽  
Early Seedling

Screening of chickpea lines for salt tolerance through seed germination and early seedling growth is crucial for their evaluation. Seeds of 30 chickpea genotypes were germinated on a sand bed irrigated with saline (3, 6, 9, 12 dS/m) and control solutions upto 30 days. At the early seedling stage (25-30 days), germination percentage, chlorophyll content, proline, root length, shoot length and seedling dry weight were found to be affected due to salinity. Salt tolerance index (STI) for plant biomass maintained a significant correlation with chlorophyll, proline, shoot length, and root length, which indicated that these parameters could be used as selection criteria for screening chickpea genotypes against salt stress. Significant differences in shoot length, root length, and seedling dry weight in 30-day-old seedlings were observed among selected chickpea genotypes as well. From the overall observation of germination characterstics and early seedling growth, it is concluded that the chickpea genotypes, HC-1, HC-5, ICC 867, ICC 5003, H-10-41 showed better salt tolerance as compared to the available salt tolerant check variety.

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