scholarly journals Genotypic variation in tolerance to salinity of common beans cultivated in Western Cameroon as assessed at germination and during early seedling growth

2017 ◽  
Vol 2 (1) ◽  
Author(s):  
Eric B. Kouam ◽  
Simon M. Ndo ◽  
Marie S. Mandou ◽  
Asafor H. Chotangui ◽  
Christopher M. Tankou
Keyword(s):  
Common Bean ◽  
Seedling Growth ◽  
Growth Parameters ◽  
Block Design ◽  
Genotypic Variation ◽  
Substantial Reduction ◽  
Germination Percentage ◽  
Early Growth ◽  
Coefficient Of Velocity ◽  
Germination Experiments

AbstractThis study was carried out to determine effects of salinity on germination and seedling development of commercially important common bean genotypes in Cameroon. The seeds of eight genotypes were used for both trials. The germination experiments were carried out on petri dishes in the laboratory while early growth trials continued in plastic pots in the screenhouse. Both stages were setup using a randomized complete block design with three replications. Germination and early growth trials of the different genotypes were studied using distilled water as control or osmotic potentials of 50, 100, 150 and 200mM NaCl to study the effects of salinity on germination and seedling growth characteristics. Leaf concentrations of Na+ and K+ were determined. At the germination level, germination percentage, germination index and the coefficient of velocity of germination decreased with increasing salinity while the mean germination time and time to 50% germination increased with increasing level of salt. All the growth variables decreased with increasing salinity with the exception of the root length which was not affected by salinity. It was observed that increasing salinity induced a significant increase in leaf Na+ and substantial reduction in the accumulation of K+ in the leaves. For ions accumulation, germination variables and growth parameters, significant differences at 0.001 probability levels were found among salinity treatments, common bean genotypes and most of their interactions. Significant correlations were found between all germination variables and between most growth parameters. From the effect of salt application, the common bean genotypes namely KEBCB049, KEB-CB053 and Mac-33 were the most tolerant while KEB-CB055 and KEB-CB050 were the most sensitive. The results confirm that there is genotypic variation in salinity tolerance and that the most tolerant genotypes should be further explored in selection programs, with the aim that they should be promoted for cultivation in tropical zones affected by salinity.

scholarly journals The Use of Germination Indices for Salinity Tolerance Classification of Pepper Cultivars

2019 ◽  
Vol 7 (9) ◽  
pp. 1304
Author(s):  
Gamze Kaya
Keyword(s):  
Salinity Tolerance ◽  
Seedling Growth ◽  
Growth Parameters ◽  
Genotypic Variation ◽  
Germination Percentage ◽  
Control Treatment ◽  
Tolerance Index ◽  
Seedling Length ◽  
Early Seedling ◽  
Germination Indices

The study aimed to evaluate the use of germination indices as a screening tool for salinity tolerance during germination and early seedling growth of pepper cultivars, and to distinguish the potential for genetic responses to salt tolerance. In the study, the seeds of seven pepper cultivars were germinated at increasing NaCl levels of 5, 10, 15 and 20 dS/m and distilled water as the control treatment for 14 days. Germination percentage (GP), mean germination time (MGT), germination index (GI), germination stress tolerance index (GSTI), seedling length (SL), seedling fresh weight (SFW) and vigor index (VI) were investigated. Results showed that germination percentage decreased with increasing NaCl levels while the highest germination percentage at 20 dS/m was 92% in BT Burdem with no significant reduction. Seedling growth of pepper cultivars was severely inhibited by increasing salinity stress. SFW was depressed depending on reduction in SL due to increasing NaCl. BT-Burli and BT İnce Sivri were the most tolerant cultivars to NaCl and they were used for genetic resources towards salinity. Seedling growth was much more sensitive to salinity than germination because of the highest percent reduction in seedling growth parameters. Among the parameters, GSTI gave the highest significant correlation coefficient with SL and SFW; indicating that it would be useful for estimating seedling growth. It was concluded that genotypic variation was observed among pepper cultivars for salinity tolerance and GSTI could be used for a predictor for salinity tolerance.

scholarly journals EVALUATE GERMINATION AND SEEDLING GROWTH OF THREE CULTIVARS OF FENNEL UNDER DIATOMITE AND SOIL MANAGEMENT

2019 ◽  
Vol 52 (3) ◽  
pp. 291-298
Author(s):  
M.H. SHAHRAJABIAN ◽  
M. KHOSHKHARAM ◽  
W. SUN ◽  
Q. CHENG
Keyword(s):  
Seedling Growth ◽  
Block Design ◽  
Germination Percentage ◽  
Maximum Speed ◽  
Germination Time ◽  
Leaf Weight ◽  
Randomized Complete Block Design ◽  
Long Time ◽  
Mean Germination Time ◽  
Coefficient Of Velocity

Fennel is a plant belonging to the Apiacea (Umbelliferae) family, and used by humans for a long time for medicinal purposes. In order to evaluate the influence of different materials on germination and seedling growth of three cultivars of fennel, an experiment was conducted in 2018. The cultivars of fennel were Isfahan, Yazd, and Shiraz in main plots, and three materials including 100% soil, 50% diatomite + 50% soil, and 100% diatomite in subplots, were analyzed in a split plot experiment based on a randomized complete block design (CRBD) with three replications. The highest total germination percentage, coefficient of velocity of germination, epicotile length, fresh epicotile weight and dry epicotile weight was related to Isfahan. The maximum speed of germination, mean germination time, fresh length and dry leaf weight was achieved in Shiraz cultivar. The higher values of total germination percentage, speed of germination and mean germination time were related to 100% soil, while application of 50% of soil + 50% of diatomite had obtained the maximum values of radicle length, epicotile length, fresh epicotile weight, dry leaf weight and dry epicotile weight. The maximum values of coefficient of velocity of germination and fresh leaf weight was achieved in application of 100% diatomite. It seems that application of 50% soil + 50% diatomite and Isfahan and Shiraz cultivars have a great potential of seed germination of seedling growth.

scholarly journals GERMINATION AND SEEDLING GROWTH OF SILYBUM MARIANUM AS A MEDICINAL PLANT UNDER SALINITY STRESS

2019 ◽  
pp. 25-38
Author(s):  
M. A. Dorri ◽  
B. Kamkar ◽  
M. Aghdasi ◽  
A. R. Safahani
Keyword(s):  
Medicinal Plant ◽  
Seedling Growth ◽  
Block Design ◽  
Germination Percentage ◽  
Milk Thistle ◽  
Tolerance Index ◽  
Root Weight ◽  
Silybum Marianum ◽  
Nacl Concentration ◽  
Salinity Levels

Milk thistle (Silybum marianum) is used as a medicinal plant in the treatment of liver diseases. In order to investigate germination and seedling growth in S. marianum subjected to NaCl, a three replicated experiment was carried out in a randomized complete block design in the laboratory of Gorgan University of Agricultural Sciences and Natural Resources. Treatments included seven salinity levels (50, 75, 100, 125, 150, 175 and 200 mM) and a control (distilled water). Germination percentage (GP), mean germination time (MGT), seed-ling vigour index (SVI), shoot, root and seedling weight were measured. The effect of salinity levels was significant on GP, SVI, MGT and seedling weight and length (p ≤ 0.01). However, the NaCl concentration effect was not significant on shoot : root length ratio and or shoot : root weight ratios. Results showed that germination decreased when salinity increased, while MGT increased. MGT was 1.75 times higher than in the control at the highest salt concentration. MGT difference was not significant between 75 mM NaCl and con-trol, while it dramatically increased by increasing the NaCl concentration from 150 to 200 mM NaCl. Reduc-tion slope and salt tolerance index (STI) were estimated for germination (0.54 and 231.9) and seedling stage (0.24 and 237.4). According to the results, milk thistle could be considered as a valuable medicinal plant in fairly salinized areas.

scholarly journals Comparative Growth Performance of Papaya Hybrids and their Parents under Reciprocal Crossing System

2020 ◽  
pp. 167-173
Author(s):  
Suchismita Jena ◽  
T. R. Ahlawat ◽  
A. I. Patel ◽  
A. K. Pandey ◽  
Dharmishtha Patel ◽  
...  
Keyword(s):  
Vegetative Growth ◽  
Growth Parameters ◽  
Block Design ◽  
Germination Percentage ◽  
Internodal Length ◽  
Randomized Block Design ◽  
Growth Performances ◽  
Breeding Programmes ◽  
Number Of Leaves ◽  
Reciprocal Crossing

Papaya is a very popular fruit in the tropical and subtropical regions of the world and has witnessed an increase in demand. This has fuelled an interest to develop region specific hybrids with desirable vegetative growth and vigour.  Hence a field experiment was carried out at College of horticulture and forestry, Navsari Agricultural University in Gujarat during 2018-2020 in randomized block design with three replications to know the mean performance of parents and hybrids for comparative growth performances of papaya. Wherein, thirty papaya hybrids were developed from six morphologically distinct parents through full diallel crossing technique and all the parents and hybrids were evaluated for their germination and growth parameters. The variability was distinct in all hybrids and parents for germination percentage, days taken to germination, periodical plant height and girth, number of leaves, petiole length and internodal distance. Amongst all the parents, Pusa Delicious, CO-8 and Lucknow Local exhibited improved germination, better vegetative growth and dwarf stature, respectively. Among the hybrids, Pusa Delicious x Lucknow Local was found to have dwarf stature with minimum internodal length however, the reciprocal cross: Lucknow Local x Pusa Delicious recorded maximum plant girth and number of leaves. Based on their mean performance, these parents can be used for further breeding programmes and hybrids could be exploited for cultivation.

scholarly journals Effect of Soaking Treatment on Germination of Hard Coated Tropical Forest Tree Seeds

2021 ◽  
Vol 19 (2) ◽  
pp. 1-9
Author(s):  
Juventine Boaz Odoi ◽  
David Mugeni ◽  
Robert Kiiza ◽  
Betty Apolot ◽  
Samson Gwali
Keyword(s):  
Seed Germination ◽  
Growth Performance ◽  
Seedling Growth ◽  
Cold Water ◽  
Block Design ◽  
Forest Tree ◽  
Germination Percentage ◽  
Seedling Vigour ◽  
Terminalia Catappa ◽  
Maesopsis Eminii

Seed germination and seedling growth performance of Maesopsis eminii and Terminalia catappa under different water soaking treatments were evaluated for 120 days under nursery conditions. A total of 1400 seeds were pre-treated with hot (95oC) and cold water (ambient temperature) by soaking for 12, 24 and 48 hours with a control of no soaking. The seeds were sown directly into polythene pots filled with uniform growth medium (top forest soil, sand and clay soilmixed in a ratio of 5:3:2) to avoid disturbance of the root system after germination. The seeds were sown in a randomized block design with seven treatments and three replicates. Data were analysed using ANOVA in GenStat v18. Results indicated that soaking enhanced seed germination. Soaking of seeds in cold water for 12 hours resulted into higher germination (90% for Terminalia catappa and 85% for Maesopsis eminii) than the control (48%). Soaking period and water temperature significantly influenced seedling vigour (F value = 0.962; p = 0.038). Soaking seeds in cold water for 24 hours enhanced Maesopsis eminii seedling growth by 8.0 cm Terminalia catappa seedlings by 7.4 cm. Seed dormancy, germination percentage and growth performance in hard coated seeds such as Maesopsis eminii and Terminalia catappa can be broken by soaking in cold water for 12-24 hours. Pre-germination treatments significantly influences the germination and seedling growth. Keywords: Maesopsis eminii, Terminalia catappa, seeds, pre-germination, soaking.

scholarly journals Effect of Arka microbial consortium on growth and germination percentage of French bean and Amaranthus seeds

2020 ◽  
Vol 7 (8) ◽  
pp. 16-21
Author(s):  
Priyadarshini Pillai ◽  
M. Punitha ◽  
S. Ranjitha ◽  
R. Ragavi ◽  
G. Roopa ◽  
...  
Keyword(s):  
Plant Growth ◽  
Crop Production ◽  
Microbial Consortium ◽  
Growth Parameters ◽  
Block Design ◽  
Organic Fertilizer ◽  
Integrated Approach ◽  
Germination Percentage ◽  
French Bean ◽  
Seed Vigour

Composting is an alternative for recycling biodegradable organic waste, transforming it into organic fertilizer that can be used as agricultural nutrients, avoiding its disposal in landfills. This study evaluated the composting of Jyoti Nivas college hostel kitchen waste using Arka Microbial Consortium, with a view to its applications on Germination percentage, Seed Vigour Index and plant growth parameters of French bean (Arka arjun) and Amaranthus (Arka arunima) seeds. Arka microbial consortium (AMC) is carrier based product which contain nitrogen fixing, potassium and zinc solubilizing plant growth promoting microbes used as decomposers. The experiment was conducted under greenhouse conditions in a randomized block design, with two treatments and three replicates. Assessments of plant growth parameters were performed and results suggest that using Arka Microbial Consortium with bio compost is suitable for better production French bean (Arka arjun) and Amaranthus (Arka arunima) seeds that may increase soil fertility and this integrated approach could be contributed to improve crop production.

Isolation and Identification of Trichoderma Species and Investigating their Seed Treatment Effect on Rapeseed (Brassica napus L.) Germination

2018 ◽  
Vol 51 (3) ◽  
pp. 43-50
Author(s):  
M. Ghasemialitappeh ◽  
M. Sadravi ◽  
A. Mirabadi
Keyword(s):  
Biological Control ◽  
Seed Treatment ◽  
Plant Pathogens ◽  
Growth Parameters ◽  
Block Design ◽  
Germination Percentage ◽  
Control Group ◽  
Isolation And Identification ◽  
Trichoderma Species ◽  
Significant Difference

Abstract Trichoderma fungus species are highly populations of fungi in world that they can colonize roots as plant symbiosis. Various types of Trichoderma are free-living fungi that are, generally, saprophytic on the remains of soil. In addition to its role in biological control, this fungus increases plant yield and growth. So far, many studies have been conducted to examine the ability of this agent to reduce biological tensions and biological control of plant pathogens. Thus, this study was conducted to isolate and identify species of Trichoderma fungus from rapeseed fields in Golestan and Qazvin province from Iran, and also to study isolated species on germination percentage and growth parameters of rapeseed seedlings in a randomized complete block design with three replications in vitro. Based on the results, three species of T. harzianum, T. virens, and T. atroviride were identified, which the isolate of T. harzianum Ta19 showed a significant effect on the control group and other treatments in increasing germination percentage, root length and stem; whereas, the seeds treated with the isolate T. atroviride Ta11 showed no significant difference with the control group in spite of the increase in seed germination rate in comparison with the control and other treatments. According to the results, the use of Trichoderma fungus as a seed treatment like other researches on different products is recommended for increasing the growth of rapeseed.

Chloride salts inhibit emergence and seedling growth of chickpea rather than germination

2017 ◽  
Vol 40 (04) ◽  
Author(s):  
Hamdi Özaktan ◽  
Cemalettin Yasar Çiftçi Çiftçi ◽  
Mehmet Demir KAYA ◽  
Sati Uzun ◽  
Oguzhan Uzun ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Seedling Growth ◽  
Genotypic Variation ◽  
Germination Percentage ◽  
Distilled Water ◽  
Germination Test ◽  
Seedling Length ◽  
Mean Germination Time ◽  
Chloride Salts ◽  
Chickpea Cultivars

The effects of chloride salts (NaCl, MgCl2 and CaCl2) with the same electrical conductivity (EC) values on germination, emergence, seedling growth and Cl content of seedling in chickpea cultivars (Akçin 91, Aziziye, Gökçe, Inci, Iºýk-05 and Yaºa-05) were investigated. The EC values of the chloride salts were adjusted to 4, 8 and 16 dS m-1 and the distilled water was served as control. Germination percentage, mean germination time, radicula and plumula lengths, fresh and dry radicula and plumula weight, chloride (Cl-) content of seedling in germination test, and seedling length, fresh and dry seedling weight in emergence test were measured. The results revealed that increasing salt doses caused a significant reduction in parameters of all cultivars. The dose of 16 dS m-1 from each salt was found to be lethal. Cl- content of seedling was increased from 0.05 ppm in control to 4.10 ppm in 16 dS m-1; resulting in decreasing germination, emergence and seedling growth. The cultivar Aziziye presented better performance and gave higher emergence rates in NaCl, while Iºýk-05 in CaCl2 and Gökçe in MgCl2; indicating that there was a genotypic variation towards different salt sources. It was concluded that emergence and seedling growth were severely influenced by increasing salinity without changing germination and emergence was not possible at 16 dS m-1.

scholarly journals Utilization of Grape Fruit Waste-based Substrates for Seed Germination and Seedling Growth of Lemon Basil

2017 ◽  
Vol 27 (4) ◽  
pp. 523-529 ◽  
Author(s):  
Mohammed El-Sayed El-Mahrouk ◽  
Yaser Hassan Dewir ◽  
Salah El-Hendawy
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Growth Parameters ◽  
Low Cost ◽  
Germination Rate ◽  
Germination Percentage ◽  
Waste Recycling ◽  
Grape Fruit ◽  
Fruit Waste ◽  
One To One

Grape (Vitis vinifera) waste management is a major problem in juice production, but it could be transformed into a major opportunity if the waste was recycled and used as a nursery growing medium. The aim of this study was to evaluate the suitability of four composts based on squeezed grape fruit waste (SGFW), mixed with coir or vermiculite in a one-to-one ratio by volume to form 13 growing media, for seed germination and seedling growth of ‘Mrs. Burns’ lemon basil (Ocimum basilicum var. citriodora). The final germination percentage (FGP), corrected germination rate index (CGRI), survival percentage, and seedling growth of ‘Mrs. Burns’ lemon basil were the variables measured. Pure SGFW reduced seed germination and seedling growth. The medium combining pure SGFW with vermiculite in a one-to-one ratio by volume was optimal for seed germination and seedling growth; in this medium the highest FGP, CGRI, survival rate, and growth parameters were recorded. The negative effects of pure SGFW composts were eliminated by mixing all composts with coir or vermiculite. These waste recycling media are low-cost products that can be beneficially used in nurseries on a commercial scale.

scholarly journals TiO2 Nanoparticles Enhancing Germination, Growth and Yield of Rice

2020 ◽  
pp. 25-30
Author(s):  
Keya Debnath ◽  
Aparajita Das ◽  
Bimal Das ◽  
J. Karfoma
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Growth Parameters ◽  
Block Design ◽  
Growth And Yield ◽  
Yield Traits ◽  
Dose Limit ◽  
Tio2 Nps ◽  
Randomized Block Design ◽  
Almost All

Background: Titanium dioxide (TiO2) NPs are used in agriculture to increase seeds germination and seedlings growth and can improve yield by approximately 30%. The present experimental investigation demonstrated the effect of nanoparticles (NPs) Anatase - TiO2 (<100 nm size) on germination, seedling growth and yield attributing traits of rice. Methods: Rice seeds were treated with six concentrations (0, 10, 20, 50, 80 and 100 ppm) of nanoTiO2 and placed in Petri plates. Some amount was sown in the field following Randomized Block Design (RBD) with three replications for each treatment. Results: Application of TiO2 NPs significantly enhanced germination, seedling growth and yield traits for most of the concentrations as compared to the control. About 85% significant improvement of seed germination occurred by 20 ppm of TiO2 NPs. The results of TiO2 treated samples were higher in almost all the growth parameters, but the treatment was highly effective for 20 ppm followed by 50 ppm for grain yield. The response to nano-treatment on seed germination along with yield traits suggested the optimum TiO2 dose limit on these characters on rice.

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