Evaluating antimutagenic effects of vitamin‐C and L‐cysteine alone and in combination towards sodium azide‐induced toxicity in Trigonella foenum‐ graecum L.

2013 ◽  
Vol 3 (3) ◽  
pp. 127-130
Author(s):  
Manoj Kumar Rawat ◽  
Rajendra Prasad Meena
Keyword(s):  
Ascorbic Acid ◽  
Amino Acid ◽  
Seed Germination ◽  
Seedling Growth ◽  
Sodium Azide ◽  
Antimutagenic Activity ◽  
Inhibitory Effects ◽  
Mutagenic Agent ◽  
Cysteine Amino Acid

Antimutagenicity of vitamin‐C (ascorbic acid) and L‐cysteine (amino acid) was determined against the mutagenicity of sodium azide (NaN3; pH 6.0) in Trigonella foenum‐graecum L. Toxicity to seed germination and seedling growth were taken as as the parameters. Sodium azide (mutagenic agent) induces inhibitory effects on the seed germination and causes formation of abnormal seedlings significantly with increasing concentrations. Sodium azide mutagenized seeds of T. foenum‐graecum post‐treated with four different aqueous concentrations of vitamin‐C (0.0005M, 0.0010M, 0.0015M and 0.0100M) and L‐cysteine (0.0005M, 0.0010M, 0.0015M and 0.0100M), exhibited antimutagenic activity by way of promotory effects on seed germination as well as on seedling growth as compared to contol. L‐cystein was found to be more potent as antimutagen (antitoxic) than vitamin‐C.

scholarly journals Effect of Different Colour Shading on Seedling Growth, Fruit Morphology and Phytochemical Properties of Tomato (Solanum lycopersicum L. var KWR)

2020 ◽  
pp. 72-84
Author(s):  
P. K. Dissanayake ◽  
W. G. C. Wekumbura
Keyword(s):  
Ascorbic Acid ◽  
Seed Germination ◽  
Seedling Growth ◽  
Acid Content ◽  
Ascorbic Acid Content ◽  
Consumer Preference ◽  
Small Scale ◽  
Fruit Morphology ◽  
Tomato Plants ◽  
Fruit Setting

Context: Producing high quality and chemical free tomato would favorably enhance consumer preference. There are most promising findings available on growth and quality attributes of tomato and other plants under different light spectrum in closed house conditions using different light sources. Installment of light emitting devices and running cost with high power consumption might not favorable for commercial cultivators and small scale growers. Aim: In present study we used colour transparent sheets such as colourless (control), red, blue, green and yellow as shading material to transmit respective spectrum of light on tomato plants to study the effect. Methodology: Tomato seed germination study was done under different colour shading in petri plates. Seedling and plant growth parameters and phytochemical properties of tomato plants grown under different transparent colour shadings were studied such as number of leaves, leaf area, weight of shoot and root, chlorophyll content, ascorbic acid content of fruits, lycopene contents of fruits, fruit physical parameters and flowering. Results: Seed germination was significantly high under yellow, colourless and red shading over blue and green. Seedling growth was significantly high under yellow shading. Fruit Ascorbic acid content was positively enhanced by yellow, green and colourless shading, whereas chlorophyll and lycopene content significantly high under green and red. Number of flower setting per plant was high under green shading (40±5.77), whereas lowest under yellow shading (22.33±6.38). Fruit setting significantly high under yellow shading (14±2) and lowest was red (9±1). Blue shading showed significantly high effect on fruit morphological traits such as pericarp thickness and fruit size. Conclusion: Yellow colour shading enhances seedling growth and fruit setting of tomato, while green having positive impact on fruit morphology. However, different characters of tomato were differently affected by different colour shading in greenhouse condition and for the better effect appropriate colour shading should be selected at particular stage of growth.

Autotoxic Effects of the Leachates from the Invasive Eupatorium adenophorum In Vitro and in Soil

2014 ◽  
Vol 1073-1076 ◽  
pp. 172-175
Author(s):  
Xun Zhi Zhu ◽  
Hong Bo Han ◽  
Qiang Li
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Natural Soil ◽  
Inhibitory Effects ◽  
Eupatorium Adenophorum ◽  
Laboratory Bioassay ◽  
Seedling Root ◽  
Allelopathic Effects ◽  
Allelopathic Compounds

Eupatorium adenophorum (croftonweed), one of the most destructive alien species in China, has been demonstrated or indicated to have inhibitory effects on other species in laboratory bioassay. However, allelopathic compounds of E. adenophorum may play other roles more than interspecific interference. Here we investigated whether E. adenophorum aqueous leachates could influence conspecific seed germination and seedling growth with laboratory bioassay and found that it could inhibit seed germination and reduce seedling root elongation of E. adenophorum. Then we examined interactions between E. adenophorum leachate and natural soil on germination and seedling growth of E. adenophorum itself. The results showed that soil from different habitats altered the allelopathic effects usually observed in laboratory bioassay. In the heavily invaded site, E. adenophorum were inhibited by E. adenophorum leachates; whereas, in two lightly invaded sites, germination and seedling growth of E. adenophorum was significantly facilitated. We can infer that allelochemicals from E. adenophorum play a dramatic role in regulating its population density.

EFFECTS OF DIETHYL SULPHATE ON SEED GERMINATION AND SEEDLING GROWTH OF NICOTIANA TABACUM

1969 ◽  
Vol 11 (1) ◽  
pp. 72-76 ◽  
Author(s):  
Bronius Povilaitis
Keyword(s):  
Nicotiana Tabacum ◽  
Seed Germination ◽  
Seedling Growth ◽  
Detrimental Effect ◽  
Saturated Solution ◽  
Mutagenic Agent ◽  
Nicotiana Tabacum L ◽  
Treated Seed ◽  
Plant Characteristics

Seeds of three flue-cured tobacco (Nicotiana tabacum L.) varieties, Hicks Broadleaf, Yellow Gold, and Canadel, were soaked for 1, 2, 3 or 5 hours in a saturated solution of diethyl sulphate, a chemical mutagenic agent, to increase variability of plant characteristics. Diethyl sulphate had a detrimental effect on both extent and rate of germination; each decreased with length of soaking period. Seedlings from treated seed grew more slowly than controls.

Inhibitory Effects of Monoterpenes on Seed Germination and Seedling Growth

2007 ◽  
Vol 62 (3-4) ◽  
pp. 207-214 ◽  
Author(s):  
Saban Kordali ◽  
Ahmet Cakir ◽  
Sunay Sutay
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Chemical Constituents ◽  
Chenopodium Album ◽  
Amaranthus Retroflexus ◽  
Biologically Active ◽  
Inhibitory Effects ◽  
Rumex Crispus ◽  
Oxygenated Monoterpenes ◽  
Monoterpene Hydrocarbons

Abstract Monoterpenes, the chemical constituents of essential oils found in plants, are known biologically active compounds. The present study was conducted to investigate the inhibitory effects of 30 monoterpenes including monoterpene hydrocarbons and oxygenated monoterpenes on seed germination and seedling growth of Amaranthus retroflexus, Chenopodium album and Rumex crispus under laboratory conditions. The monoterpenes were applied at contents of 10 and 20 μl for liquid compounds and 10 and 20 μg for solid compounds. The results show that most of the monoterpenes significantly inhibited seed germination and seedling growth of the tested plants. Oxygenated monoterpenes including β-citronellol, nerol and terpinen-4-ol completely inhibited seed germination and seedling growth of all tested plants. Their inhibitory effects were also stronger than that of the herbicide 2,4-D. In general, monoterpenes were less effective against seed germination and seedling growth of C. album as compared with R. crispus and A. retroflexus. Phytotoxic effects of monoterpene hydrocarbons were found to be lower than those of oxygenated monoterpenes. The alcohol derivatives of oxygenated monoterpenes were also found to be more phytotoxic as compared with their acetate derivatives. Based on the present results, it can be concluded that the oxygenated monoterpenes can be used as potential bio-herbicides.

scholarly journals ALLELOPATHIC EFFECT OF SIAM WEED DEBRIS ON SEED GERMINATION AND SEEDLING GROWTH OF THREE TEST CROP SPECIES

2020 ◽  
Vol 5 (1) ◽  
pp. 01-04
Author(s):  
Mahfuza Begum ◽  
Md. Abdus Salam ◽  
Farhana Zaman
Keyword(s):  
Seed Germination ◽  
Sustainable Agriculture ◽  
Seedling Growth ◽  
Agricultural Practices ◽  
Dry Weight ◽  
Inhibitory Effect ◽  
Allelopathic Effect ◽  
Inhibitory Effects ◽  
Crop Species ◽  
Agriculture Management

Allelopathy is important for agricultural practices as has gained attention in sustainable agriculture management. Therefore, an experiment was conducted to assess the allelopathic effect of siam weed (Chromolaena odorata L. King and Robinson) debris on the germination and seedling growth of rice, mustard and groundnut at four concentrations of weed debris (e.g., 0, 0.25, 0.5 and 1.0 g dry weight per 100 g soil). The weed debris at different concentrations reduced the seed germination, plant height, leaf numbers, leaf area and seedling dry weight of the test crop species. The inhibitory effects of the test crop were positively related to the concentration of siam weed debris in soil. On the basis of average percent inhibition (API), mustard (24.47%) was mostly affected by the siam weed debris followed by groundnut (20.10%) and rice (17.10%). From the results of the study, it is observed that weed debris of siam weed had inhibitory effect on the seed germination and seedling growth of rice, mustard and groundnut. Therefore, the allelopathic activity of the siam weed may play an important role in the management of sustainable agriculture.

IMPACT OF FERTILIZERS APPLICATION ON SEED GERMINATION AND SEEDLING GROWTH OF VIGNA RADIATA

2018 ◽  
Vol 24 (2) ◽  
Author(s):  
SUPRIYA DIXIT ◽  
R. K. GUPTA
Keyword(s):  
Seed Germination ◽  
Leaf Area ◽  
Seedling Growth ◽  
Vigna Radiata ◽  
Agricultural Research ◽  
Dry Weight ◽  
Fertilizer Application ◽  
Research Field ◽  
Chemical Fertilizer ◽  
Seedling Length

Currently, a real challenge for the workers in the agricultural research field is to stop or reduce the use of expensive agrochemicals/ chemical fertilizers which are hazardous to the environment as well as human health. Present study was aimed to improve the growth and obtain optimum yield of Vigna crop with eco-friendly, non-toxic way and to reduce the use of agrochemical/chemical fertilizer application in agricultural activities. A pot experiment was conducted to study the effect of chemical fertilizer (DAP) and biofertilizer ( Rhizobium strain) separately and in combination on seed germination and seedling growth (at 30 days) based on morphological parameters such as seedling length (cm), fresh weight (g), dry weight (g) and leaf area (cm)2 of Vigna radiata (L.) Wilczek. After one month (30 Days) observations, it was found that seedling length, fresh and dry weights and leaf area were maximum in T4 and minimum in T15, T7 and T8 favored improved seedling length and leaf area whereas T7, T8, and T9 favored improved fresh and dry weights as compared to control.

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