scholarly journals Effect of indigenous beneficial rhizobacterial isolates on growth of Litchi seedlings

2020 ◽  
Vol 26 (2) ◽  
Author(s):  
Nandini Kumari ◽  
Pushpanjali Khare
Keyword(s):  
Root Length ◽  
Germination Rate ◽  
Shoot Length ◽  
Equal Proportion ◽  
Shoot Height ◽  
Early Germination ◽  
Maximum Root Length ◽  
Number Of Leaves ◽  
Maximum Root ◽  
And Control

A pot experiment was conducted to observe the effect of indigenous strains of rhizobacteria isolated from litchi orchards of East Champaran, Bihar (India) on the growth and survivability of litchi seedlings. Three efficient native rhizobacterial isolates belonging to genera Pseudomonas, Azotobacter and Ochrobactrum were used in seven different combinations and their effect on germination rate, shoot height, root length, number of leaves were observed and recorded in litchi seedlings. Pot 7 containing mixed combination of all the three isolates in equal proportion showed maximum root length (11.7 cm) and shoot length (12.5 cm), early germination as compared to control Pot P8 devoid of any isolates. Pot 4 (Pseudomonas + Azotobacter) and pot 5 (Pseudomonas + Ochrobactrum) also gave satisfactory result in all the parameters recorded. The results clearly state that, mixture of all the three rhizobacterial isolates as “Biomix” produced stimulatory growth results on litchi seedlings as compared to sole application and control. This “Biomix” could be used for formulating effective biofertilizers for litchi orchards in future.

scholarly journals Growth Assessment of Tropical Sugarbeet as Influenced by Spacing

2021 ◽  
Vol 23 (2) ◽  
pp. 51-58
Author(s):  
MAT Sohel ◽  
MAE Hossain ◽  
HP Roy ◽  
SM Reza ◽  
FH Shanta ◽  
...  
Keyword(s):  
Root Length ◽  
Block Design ◽  
Dry Weight ◽  
Germination Percentage ◽  
Research Field ◽  
Shoot Length ◽  
Fresh Weight ◽  
Shoot Fresh Weight ◽  
Number Of Leaves ◽  
Maximum Root

The experiment was carried out at the research field of Agronomy and Farming Systems Division, Bangladesh Sugarcrop Research Institute (BSRI), Ishurdi, Pabna during 2012-2013 to determine the most suitable spacing for sugarbeet cultivation in Bangladesh. The experiment was conducted with nine spacing viz. 50 cm × 20 cm, 60 cm × 20 cm, 70 cm × 20 cm, 50 cm × 25 cm, 60 cm × 25 cm, 70 cm × 25 cm, 50 cm × 30 cm, 60 cm × 30 cm and 70 cm × 30 cm in a randomized complete block design with three replications. The effects of spacing on sugarbeet plantation were observed on growth and growth contributing components (germination percentage, number of leaves plant-1, root length, shoot length, root fresh weight, shoot fresh weight, root dry weight, shoot dry weight, crop growth rate) of sugarbeet. The highest germination percentage (95.67%), number of leaves plant-1 (34.33) at 30 DAS, shoot length (54.07 cm) at 120 DAS, root fresh weight (969.47 g plant-1) at 150 DAS, shoot fresh weight (752.47 g plant-1) at 120 DAS and other growth contributing parameters were obtained with the spacing 70 cm × 30 cm. However, the maximum root length (38.97 cm) was obtained with 50 cm × 20 cm spacing. It was concluded that the wider spacing promoted the growth of individual beet, though the optimum spacing for maximum root growth of sugarbeet was 50 cm × 20 cm. Bangladesh Agron. J. 2020, 23(2): 51-58

scholarly journals Study of indole butyric acid (IBA) effects on cutting rooting improving some of wild genotypes of damask roses (Rosa damascena Mill.)

2015 ◽  
Vol 60 (3) ◽  
pp. 263-275 ◽  
Author(s):  
Fardin Nasri ◽  
Arsalan Fadakar ◽  
Mahmood Saba ◽  
Bayzid Yousefi
Keyword(s):  
Butyric Acid ◽  
Control Treatment ◽  
Rosa Damascena ◽  
Indole Butyric Acid ◽  
Significant Difference ◽  
Maximum Root Length ◽  
Number Of Leaves ◽  
Maximum Root ◽  
Medicinal Properties ◽  
The Rose

Rosa damascena is very important for essential oil production, medicinal properties and it is also widely cultivated as a garden rose. The Rose species is mainly propagated by stem cutting. In the present study, the effect of different levels of 0, 500 and 1,000 mg l-1 (quick dip method for 20 s) of indole butyric acid (IBA) on the rooting of 12 wild genotypes (including: Kurdistan 1 to Kurdistan 12) of R. damascena was investigated. The results show that the rooting ability of R. damascena differs significantly between the twelve genotypes. The highest rooting (79.56%) and callus production (69.08%), number of roots (8.33), root fresh and dry weights (361.80 and 244.74 mg, respectively) were recorded in Kurdistan 5 genotype with 1,000 mg l-1 IBA. The maximum root length (5.84 cm) was observed in Kurdistan 5 genotype with 500 mg l-1 IBA that showed a significant difference compared to the control treatment (0.96 cm). The highest number of leaves per bud (7.33 at 500 mg l-1 IBA) and number of buds (5.00 at 1,000 mg l-1 IBA) were recorded in Kurdistan 1 genotype. The current study demonstrated that the different genotypes of R. damascena were in a difficult-toroot state, which suggests that cutting treatment with 1,000 mg l-1 IBA overcame the problem of the difficult-to-root state, and it can also enhance the rooting percentage in the studied genotypes.

scholarly journals Impacts of different salt source and concentrations on germination and seedling growth of many pumpkin seeds used as rootstoch in Iran

Genetika ◽  
2012 ◽  
Vol 44 (2) ◽  
pp. 235-250 ◽  
Author(s):  
Ahmad Dadashpour
Keyword(s):  
Electrical Conductivity ◽  
Seed Germination ◽  
Seedling Growth ◽  
Root Length ◽  
Germination Rate ◽  
Shoot Length ◽  
Root Weight ◽  
Pumpkin Seeds ◽  
High Concentrations ◽  
Shoot Weight

The effects of different salt sources (C Cl2, NaCl, and KCl) and concentrations, as measured by electrical conductivity, (0, "control", 1, 3, 5, 7 and 9 dS m-1) on seed germination and seedling growth of ?Ferro?, ?Obez?, ?RS 841? and ?Strong Tosa F1? pumpkin varieties used as rootstock were investigated in this study. The results showed that germination rate, root length, shoot length, fresh root weight, dry root weight, fresh shoot weight and dry shoot weights tend to decrease when the electrical conductivity of the solution is higher than 5 dS m-1, independent of salt sources and in all of the varieties. Three days after seeding, a germination ratio of 5 % was obtained from RS 841 variety in all salt source and concentrations, while a germination ratio over 50 % was obtained in ?Strong Tosa? variety for the same conditions except CaCl2 salt source. Nevertheless, seeds germinated in medium having high concentrations of CaCl2 had lower germination rate and poor seedling growth, compared to media having the same concentrations of NaCl and KCl. It was concluded that all of the varieties studied were more sensitive to the concentrations prepared using CaCl2 than that of the KCl, and NaCl.

scholarly journals In vitro callus initiation and regeneration of potato

1970 ◽  
Vol 34 (3) ◽  
pp. 449-456 ◽  
Author(s):  
AU Haque ◽  
MA Ehsanul Samad ◽  
TL Shapla
Keyword(s):  
Key Words ◽  
Root Length ◽  
Shoot Length ◽  
Leaf Explant ◽  
Callus Initiation ◽  
Number Of Leaves ◽  
Interaction Term ◽  
Shoot Tip Explants ◽  
Internode Explants

The first experiment involving different explants and concentrations of 2,4-D and kinetin showed highly significant differences for length and weight of callus formed except interaction of callus weight. Leaf explant appeared to be best of all for callus length and weight when 1.0 mg/L 2,4-D + 0.25 mg/L kinetin concentration was used. Similarly, different explants versus different concentrations of BAP/GA3/IAA showed significant differences for shoot length and leaf number per plantlet and also for root length. However, interaction term confirmed node and node/internode explants produced better results in shoot length and number of leaves per plantlet when concentrations 1 .0 mg/L BAP + 0.1 mg/L GA3 and 1.0 mg/L BAP + 0.2 mg/L GA3, 1.0 mg/L BAP + 0.4 mg/L GA3, respectively, were used. Similarly, internode explants produced better results for root length after 21 days plantlet-1 when concentration of 1.0 mg/L IAA + 0.25 mg/L GA3 was used. Shoot tip explants also produced better results in root length after 28 days plantlet-1 when concentrations 1.0 mg/L IAA + 0.25 mg/L GA3 were used. Key Words: In vitro, callus initiation, regeneration, potato. DOI: 10.3329/bjar.v34i3.3971 Bangladesh J. Agril. Res. 34(3) : 449-456, September 2009

Effects of Prodiamine on Tall Fescue (Festuca arundinacea) Rooting

1995 ◽  
Vol 9 (4) ◽  
pp. 736-740
Author(s):  
Sangwook Han ◽  
Thomas W. Fermanian ◽  
Thomas B. Voigt
Keyword(s):  
Tall Fescue ◽  
Root Length ◽  
Dry Weight ◽  
Kentucky Bluegrass ◽  
Individual Response ◽  
Root Dry Weight ◽  
Significant Difference ◽  
Maximum Root Length ◽  
Maximum Root ◽  
The Mean

With the increased development of new tall fescue cultivars used in turf, it is important to understand their individual response to herbicide treatment. The effect of prodiamine on tall fescue root dry weight and root length of selected tall fescue cultivars was studied in the greenhouse in 1.3-m-deep pots of calcined clay. Prodiamine at 0.8 kg ai/ha did not significantly affect either root dry weight or root length. However, the mean root dry weight and maximum root length averaged over all cultivars were significantly reduced at 4 wk after treatment with 1.7 kg/ha. When the prodiamine treatments were repeated in a second experiment, both rates caused a significant reduction in the mean root dry weight and maximum root length but there was no significant difference between prodiamine rates. Single degree of freedom contrasts between the untreated and treated turfs for each cultivar had some differential response in root dry weight. The reduction in root dry weight in the prodiamine treatments was more pronounced in the second study because the turf was less mature. ‘Olympic’ and ‘Rebel’ tall fescue had significantly reduced root dry weight at the 1.7 kg/ha rate in first study; whereas, ‘Amigo,’ Olympic, ‘Sundance,’ and ‘Taurus' tall fescue had significant reduction in root dry weight at both 0.8 and 1.7 kg/ha prodiamine rates. ‘Midnight’ Kentucky bluegrass had significantly reduced root length at both prodiamine rates in the second experiment but in general there was little difference among tall fescue cultivars treated with prodiamine.

scholarly journals Effects of lead on seedling growth of spesia populnea

2010 ◽  
Vol 56 (No. 4) ◽  
pp. 194-199 ◽  
Author(s):  
M. Kabir ◽  
M.Z. Iqbal ◽  
M. Shafiq ◽  
Z.R. Farooqi
Keyword(s):  
Leaf Area ◽  
Environmental Conditions ◽  
Root Length ◽  
Growth And Development ◽  
Strong Influence ◽  
Dry Weight ◽  
Shoot Length ◽  
Thespesia Populnea ◽  
Seedling Length ◽  
Number Of Leaves

The effects of lead on root, shoot and seedling length, leaf area, number of leaves, plant circumference, seedling dry weight, root/shoot and leaf area ratios of <I>Thespesia populnea</I> L. were determined in greenhouse under natural environmental conditions with and without phytotoxic metal ions at 5, 10, 15, 20, and 25 µmol/l. Lead treatments have a strong influence on the growth and development of <I>T</I>. <I>populnea</I> by reducing significantly (<I>P</I> &lt; 0.05) all the above parameters. Lead treatment at 5–25 µmol/l produced significant (<I>P</I> &lt; 0.05) effects on seedling and root length, plant circumference and seedling dry weight of <I>T</I>.<I> populnea,</I> while lead treatment at 10–25 µmol/l produced significant (<I>P</I> &lt; 0.05) effects on shoot length, number of leaves and leaf area as compared to control. Tolerance in <I>T</I>.<I> populnea</I> seedling at 25 µmol/l of lead treatment was lowest as compared to all other treatments.

scholarly journals Effect of some botanical fungicide and chemicals as forest seed dressing  on the quality of the seeds: تأثير بعض مبيدات الفطريات والكيمياويات النباتية في تلبيس بذور الغابات  على جودة البذور

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Shler Hassan Mahmood, Jalal Hama Salih Ismael
Keyword(s):  
Seed Germination ◽  
Root Length ◽  
Germination Percentage ◽  
Shoot Length ◽  
Salix Alba ◽  
Seed Dressing ◽  
Number Of Leaves ◽  
Petri Plate ◽  
Local Plants ◽  
The University

An experiment was conducted to study the antifungal activity of different concentrations aqueous extracts from three local plants, Hypericum triquetrifolium, Salix alba, Salvia rosmarinus and also different concentrations of fungicide (Captan) and Salicylic acid were evaluated for their efficacy as seed dressing on Catalpa and Albizia that seeds were soaked separately for 30 mints in various concentrations of aqueous extract and fungicide. Forest seeds were grown in pots which were inoculated by Sclerotinia sclerotiorum and Fusarium oxysporum that one petri plate/ pot in 2018 in a greenhouse at the University of Sulaimani–College of Agricultural Sciences Engineering. The results showed that seed germination percentage, shoot length, root length and number of leaves was significantly (p≤0.05) increased with both the treatments. Captan (0.5%) was more effective in comparison with Captan (0.3%) and seed germination, shoot length, root length and number of leaves was gradually increased with increase of the doses of fungicides. It can be suggested that fungicide Captan have antifungal effect and can be used to treat seed against seed borne pathogens of forest, increase seed germination and shoot length, root length and number of leaves.

scholarly journals 606 In Vitro Propagation of Some Strawberry Cultivars in Response to Kind and Concentration of Some Cytokinin Compounds

HortScience ◽  
2000 ◽  
Vol 35 (3) ◽  
pp. 501D-501
Author(s):  
M.H. Aboul-Nasr ◽  
S.Z. Elagamy ◽  
A.M. Kassim
Keyword(s):  
In Vitro Propagation ◽  
Callus Formation ◽  
Shoot Length ◽  
Control Treatment ◽  
Fresh Weight ◽  
Shoot Height ◽  
Murashige And Skoog Medium ◽  
Number Of Leaves ◽  
Strawberry Cultivars

Three strawberry cultivars were used in this study. Runners from the three cultivars were grown on Murashige and Skoog medium supplemented with benzylaminpurine or kinetin at four concentrations (2, 1, 0.5, and 0.25 mg·L-1 in addition to the control treatment). The use of cytokinin, regardless of type and concentration, promoted the explant proliferation, shoot height, number of leaves, and plantlet fresh weight. Callus formation was enhanced by BA application, especially with `Pajaro'. However, `Chandler' did not form at all using cytokinin. Produced plantlets had lower nutrient constituents (N, P, K, Ca, and Na) when grown on media containing cytokinin compared to the control. Based on these results, cytokinin is recommended to get more shoots per explant. Furthermore, using the lowest concentration (0.25 mg·L-1) will produce height proliferation, greater shoot length, and more leaves.

scholarly journals Iron concentrations in the in vitro cultivation of native Brazilian orchid Schomburgkia crispa

2018 ◽  
Vol 4 (2) ◽  
pp. 93
Author(s):  
Douglas Bertoncelli ◽  
Guilherme Alves ◽  
Gustavo Freiria ◽  
Felipe Furlan ◽  
Helio Neto ◽  
...  
Keyword(s):  
Root Length ◽  
Iron Concentration ◽  
Leaf Length ◽  
In Vitro Cultivation ◽  
Nutritional Requirement ◽  
Initial Development ◽  
Shoot Height ◽  
Shoot Number ◽  
Number Of Leaves

In vitro cultivation is a highly important biotechnological method widely used for the production of orchid seedlings, but it is necessary to study the suitability of the nutrients used in different kinds of formulation, as the nutritional requirement varies according to the species. The objective was to evaluate different concentrations of iron in the in vitro cultivation of Schomburgkia crispa Lindl seedlings. Seedlings were obtained from seeds germinated in vitro. Modified MS culture medium was used with half of the macronutrient concentration. The micronutrients were added according to the original formulation, except for the iron which was added from a stock solution of FeEDTA (FeSO4.7H2O: 5.6 g L-1 and EDTA: 7.48 g L-1) at 0.0; 2.5; 5.0; 7.5; 10.0 and 12.5mL L-1. At 200 days after seedling transplantation, shoot height, root length, number of leaves, shoot number, leaf length, leaf width, aerial and root dry mass, chlorophyll a, b and carotenoids content were evaluated. A completely randomized design was used, with six treatments and ten replicates of five seedlings. Regression analysis was performed at 5% of significance. The increase in iron concentration caused a reduction in root length and an increase in the number of leaves and shoots. The concentration of 4.13 mL L-1 of FeEDTA was the one that provided the best in vitro growth of S. crispa plants. High concentrations of iron caused a reduction of initial development, but stimulated an increase in the number of shoots.

scholarly journals Evaluation of Biofertilizers and Biochar on the Plant Growth and Productivity of Soybean (Glycine max)

2021 ◽  
pp. 74-86
Author(s):  
Saiteja Atluri ◽  
Deepshikha Thakur ◽  
Dinesh Bukke ◽  
Naleeni Ramawat
Keyword(s):  
Glycine Max ◽  
Plant Growth ◽  
Root Length ◽  
Growth Parameters ◽  
Uttar Pradesh ◽  
Shoot Length ◽  
Soil Parameters ◽  
Organic Farm ◽  
Number Of Leaves ◽  
Pod Length

The field experiment was conducted in Organic farm of Amity university Noida, Uttar Pradesh, during the kharif season, to evaluate the sole and conjoint effect of biofertilizers and biochar on the yield, growth and productivity of Soybean (Glycine max). The five treatments viz. T1 (Control), T2 (Biochar), T3 (Biochar + Rhizobium), T4 (Biochar + Azospirillum) and T5 (Biochar + Rhizobium + Azospirillum) were used. Plant growth parameters like shoot length, root length, number of leaves, pod length, pod girth, plant height, crop yield and soil parameters were observed for the effect of various treatments. Among the all treatments the treatment T3 (Biochar with Rhizobium) maximum shoot length (52.30), root length (17.30) followed by T4 (Biochar + Azospirillum) and plant productive are maximum mean of number of pods was recorded in T3 (Biochar + Rhizobium) i.e. 32.6, whereas minimum (30.1) was recorded in T1(control) followed by T4(Biochar + Azospirillum) i.e.32.41, T5 (Biochar + Rhizobium + Azospirillum) i.e. 31.05 and T2 (Biochar) i.e.31.31   has shown significant effect on plant growth characters and plant yield. These results indicate that the   conjoint use of biochar and Rhizobium have potential to enhance the crop performance and simultaneously improves the soil properties for sustainable farming without reliance on synthetic agrochemicals.

Sign in / Sign up

Export Citation Format

Share Document