Use of mangrove leaves (Rhizophora mucronath) extract as a biofertilizer for seed
germination

The aqueous fresh leaf extract of Rhizophora mucronata Lam. is used for germination of Triticum aestivum (Wheat) and Brassica juncea (Mustard) seeds. The seeds treated with the aqueous extract showed high percentage of germination as well as longer root and shoot length as compared to control and other commercially used biofertilizer like Sargassum treated seeds.

Download Full-text

Allelopathic effects of Eucalyptus citriodora on amaryllis and associated grassy weed

Planta Daninha ◽

10.1590/s0100-83582009000500002 ◽

2009 ◽

Vol 27 (spe) ◽

pp. 887-899 ◽

Cited By ~ 24

Author(s):

K.G El-Rokiek ◽

R.A Eid

Keyword(s):

Leaf Extract ◽

Petri Dish ◽

Germination Percentage ◽

Shoot Length ◽

Aqueous Extracts ◽

Wild Oat ◽

Total Phenols ◽

Eucalyptus Citriodora ◽

Fresh Leaf ◽

Root And Shoot Length

A Petri dish assay was carried out for screening different concentrations of aqueous extracts of fresh and dry leaves of Eucalyptus citriodora on germination and seedling growth of wild oat weed (Avena fatua). Seed germination, root and shoot length of wild oat exhibited different degrees of inhibition according to the concentration of the aqueous extract. Maximum inhibitions of germination percentage, root and shoot length were recorded when using 25% fresh leaf extract. Based on this preliminary work (Petri dish assay), studies were conducted under greenhouse conditions at the National Research Center, Egypt, in the two winter seasons of 2006/2007 and 2007/2008 to evaluate the effects of foliar and soil treatments of aqueous extracts of Eucalyptus citriodora fresh and dry leaves on wild oat weed as well as on the growth and flowering of amaryllis (Hippeastrum hybridum), compared with the recommended dose of the herbicide tralkoxydim. Amaryllis fresh and dry weights as well as flowering increased significantly when treated with the previous extracts, especially the fresh leaf extract. However, the fresh and dry weights of wild oat were significantly reduced by the aqueous extracts, either fresh or dry, indicating phytotoxic effects. Tralkoxydim caused complete inhibition of wild oat as compared with the control. The studies involved estimation of the endogenous contents of total phenols in weed. With all the treatments, the inhibitory effects on weeds were correlated with accumulation of the internal contents of total phenols, compared to their respective controls. The amount of phenols correlated well with the weed's growth performance. This study establishes the effect of the aqueous extracts on the weed wild oat, associated with amaryllis, which may serve as a tool in establishing their herbicidal potential.

Download Full-text

EFFECT OF FERTILIZER FACTORY WASTES ON SEED GERMINATION, PLANT GROWTH AND ROOT-KNOT DISEASE DEVELOPMENT IN TOMATO (Lycopersicon lycopersicum L.) PLANTS

World Journal of Biology and Biotechnology ◽

10.33865/wjb.002.02.0086 ◽

2017 ◽

Vol 2 (2) ◽

pp. 151

Author(s):

Gopal Dixit

Keyword(s):

Seed Germination ◽

Plant Growth ◽

Meloidogyne Incognita ◽

Research Paper ◽

Shoot Length ◽

Disease Development ◽

Root And Shoot Length ◽

Percent Germination ◽

Lycopersicon Lycopersicum

In the present research paper studies have been made on fertilizer factory wastes on percent seed germination, root and shoot length of plants and development of root-knot galls by Meloidogyne incognita in five cultivars of tomato. Though all the cultivars showed almost similar impact of fertilizer wastes on seed germination, plant growth and resistance for root-knot disease with little variation. Percent germination of seeds and plant growth was found decreased while the root-knot index was increased along with the increase in concentration of fertilizer wastes.

Download Full-text

Allelopathic potential of Parthenium hysterophorus on wheat, Triticum aestivum. rice, Oryza sativa, soybean, Glycine max and pigeonpea, Cajanus cajan

FLORA AND FAUNA ◽

10.33451/florafauna.v26i2pp197-205 ◽

2020 ◽

Vol 26 (2) ◽

Author(s):

Goverdhan Singh Thakur ◽

Shriram Kunjam

Keyword(s):

Triticum Aestivum ◽

Oryza Sativa ◽

Glycine Max ◽

Seed Germination ◽

Aqueous Extract ◽

Seedling Growth ◽

Cajanus Cajan ◽

Parthenium Hysterophorus ◽

Seedling Vigour ◽

Allelopathic Potential

Allelopathic effects of Parthenium hysterophorus were studied on seed germination and seedling growth of Triticum aestivum, Oryza sativa, Glycine max and Cajanus cajan. The shade dried leaves of Parthenium hysterophorus were soaked in distilled water for 24 hours at room temperature to obtain aqueous extract and sterilized seeds were treated with 2%, 4%, 6%, 8% and 10% concentration of P. hysterophorus leaves aqueous extract. The germinated seeds were counted every day to observe mean germination time. It has been found that significant time is taken to germinate with increasing concentration. It has been also observed that germination percentage, root length, shoot length and seedling vigour value were reduced at >2% as compared to control. The 10 % aqueous extract showed the maximum inhibitory effect on seedling growth. In the present investigation, the leaves aqueous extract of P. hysterophorus had strong inhibiting effects on seed germination and seedling growth. It is necessary to keep this weed under check at the emerging stage at agro crop field so that crop growth constraint may be avoided

Download Full-text

Efficacy of Some Plant Extracts in Controlling Seed-Borne Fungal Infections of Mustard

Bangladesh Journal of Microbiology ◽

10.3329/bjm.v23i2.887 ◽

1970 ◽

Vol 23 (2) ◽

pp. 168-170 ◽

Cited By ~ 7

Author(s):

M Abdul Latif ◽

Abu Kaoser M Saleh ◽

M Ashik Iqbal Khan ◽

Habibur Rahman ◽

M Anwar Hossain

Keyword(s):

Seed Germination ◽

Plant Extracts ◽

Leaf Extract ◽

Fungal Infections ◽

Garlic Extract ◽

Onion Bulb ◽

Mustard Seed ◽

Ginger Extract ◽

Neem Leaf Extract ◽

Mustard Seeds

Efficacy of various concentrations of four plant extracts prepared from garlic, Neem leaf, ginger and onion bulb on reduction of seed-borne fungi was evaluated. Among the treatments, garlic extract preparations (1:0, 1:1 and 1:2) and fungicide Rovral (0.25% of seed weight) had shown to enhance seed germination remarkably compared to the other treatment. The percent reduction of fungal incidence achieved with three concentrations of the plant extracts varied from 57.0-72.0% for garlic extracts, 48.4-57.0% for Neem leaf extract, 23.6-32.2% for ginger extract, and 10.7-15.1 for onion bulb extract. The fungi isolated from the mustard seeds included species of Alternaria, Aspergillus, Chaetomium, Curvularia, Fusarium, Penicillium and Rhizopus. It was also found that garlic extract was most effective in controlling the seed-borne fungi among the plant extracts studies. The effectiveness of concentrated (1:0) preparation of garlic extract was comparable to the fungicide Rovral. In addition, Neem leaf extract was moderately effective in removal of mycoflora of mustard seeds, while ginger and onion bulb extracts were the least effective in removal of the seed-borne fungi. Keywords: Mustard, Seed-borne fungi, Plant extracts, Seed germination, Control of seed-borne fungiDOI: http://dx.doi.org/10.3329/bjm.v23i2.887 Bangladesh J Microbiol, Volume 23, Number 2, December 2006, pp 168-170

Download Full-text

Allelopathic Effects of Aqueous Extract of Leaves of Parthenium Hysterophorus L. on Seed Germination and Seedling Growth of Some Cultivated and Wild Herbaceous Species

Scientific World ◽

10.3126/sw.v5i5.2653 ◽

1970 ◽

Vol 5 (5) ◽

pp. 33-39 ◽

Cited By ~ 23

Author(s):

Seerjana Maharjan ◽

Bharat Babu Shrestha ◽

Pramod Kumar Jha

Keyword(s):

Triticum Aestivum ◽

Zea Mays ◽

Oryza Sativa ◽

Seed Germination ◽

Aqueous Extract ◽

Parthenium Hysterophorus ◽

Cereal Crops ◽

Ageratina Adenophora ◽

Allelopathic Effects ◽

Artemisia Dubia

Allelopathic effects of aqueous extract of leaves of Parthenium hysterophorus were studied on seed germination and seedling growth of three cereal crops (Oryza sativa L., Zea mays L. and Triticum aestivum L.), three cultivated crucifers (Raphanus sativus L., Brassica campestris L. and Brassica oleracea L.) and two wild species of family Asteraceae (Artemisia dubia Wall ex. Besser and Ageratina adenophora (Spreng) King and HE Robins). Seed germination of all crucifer species was completely inhibited at >2% leaf extract of Parthenium hysterophorus but in other species, except maize, complete failure of seed germination was recorded only at >6% in Triticum aestivum and Ageratina adenophora; at 10% in Oryza sativa and Artemisia dubia. Seed germination of Zea mays was not completely inhibited but it was low at high concentration of the extract. The extract had strong inhibitory effect to root elongation of seedling in cereals and to shoot elongation in crucifers and wild Asteraceae. Leaves of Parthenium hysterophorus may be a source of natural weedicide against Ageratina adenophora which will help to control invasive plants. Key words: Alien invasive; Asteraceae; Cereal crops; Crucifers; Seedling biomass; Weedicide. DOI: 10.3126/sw.v5i5.2653 Scientific World, Vol. 5, No. 5, July 2007 33-39

Download Full-text

In vitro seed germination and Growth of Three Varieties of Black Gram after Ultraviolet-B Radiation

International Journal of Applied Sciences and Biotechnology ◽

10.3126/ijasbt.v4i1.14718 ◽

2016 ◽

Vol 4 (1) ◽

pp. 117-129 ◽

Cited By ~ 1

Author(s):

K Rajendiran ◽

K Thiruvarasan ◽

R Vijayalakshmi

Keyword(s):

Seed Germination ◽

In Vitro Culture ◽

Plant Biomass ◽

Shoot Length ◽

Ultraviolet B ◽

Black Gram ◽

Root And Shoot Length ◽

Dry And Wet Conditions ◽

Germination And Growth

In vitro seed germination and growth of seedlings was tried with three varieties of black gram (Vigna mungo (L.) Hepper) viz. Vamban-3, Nirmal-7 and T-9 after ultraviolet-B irradiation (UV-B = 2 hours once with 1 hour recovery time @ 12.2 kJ m-2 d-1; ambient = 10 kJ m-2 d-1). Unstressed and UV-B stressed VAMBAN-3 and T-9 seeds both in dry and wet conditions responded to in vitro germination. Unstressed NIRMAL-7 failed to germinate under in vitro culture. UV-B stressed NIRMAL-7 responded to in vitro culture. UV-B irradiation enhanced seedling height at both dry and wet conditions in VAMBAN-3 followed by NIRMAL-7 compared with controls. Root and shoot length of UV-B stressed VAMBAN-3 and NIRMAL-7 performed five to six times better than control. Root and shoot length of T-9 was reduced (2.61 to 8.69 %) below control after UV-B exposure. UV-B stressed VAMBAN-3 under dry and wet exposure accumulated three to six times more plant biomass over controls. UV-B stressed NIRMAL-7 and T-9 dry seeds accumulated less plant biomass by 70.86 % and 12.39 % respectively than their controls. NIRMAL-7 and T-9 under dry UV-B exposure produced two times more leaves than control.Int J Appl Sci Biotechnol, Vol 4(1): 117-129

Download Full-text

Nanomagnetite and Chitosan Affect Seed Germination and Growth of Wheat (Triticum Aestivum L.)

Letters in Applied NanoBioScience ◽

10.33263/lianbs102.22792288 ◽

2020 ◽

Vol 10 (2) ◽

pp. 2279-2288

Keyword(s):

Triticum Aestivum ◽

Seed Germination ◽

Plant Growth ◽

Metal Binding ◽

Triticum Aestivum L ◽

Limiting Factors ◽

Root And Shoot Length ◽

Seed Growth ◽

Combined Action ◽

Germination And Growth

Iron deficiency is one of the limiting factors of plant growth. In recent years nanotechnology has attracted attention to producing forms of iron that are available to plants. Chitosan, which is widely used in agriculture due to its unique properties, has metal-binding abilities. We decided to study nanomagnetite and chitosan's combined action to improve seed germination and growth of wheat (Triticum aestivum L.). The thumbnail method was used in the study. The seeds were treated with magnetite suspension and chitosan solutions before planting. An increase in plant growth, root, and shoot length of plants was found in all seed treatment methods (chitosan, nanomagnetite, and combined action). This increase was significantly dependent on the concentration of chitosan. However, chitosan and magnetite combination was 1.3 times more effective for seed germination than pure chitosan or magnetite. A mechanism based on chitosan's ability to promote the better transfer of iron ions to plants is proposed. However, further investigation for the optimization of chitosan/magnetite proportions for improving seed growth is required.

Download Full-text

Bioregulators on seed germination and seedling growth of sweet basil

Comunicata Scientiae ◽

10.14295/cs.v11i0.3324 ◽

2020 ◽

Vol 11 ◽

pp. e3324

Author(s):

Larissa Santos Castro ◽

Danúbia Aparecida Costa Nobre ◽

Daniel Andrés Villegas Hurtado ◽

Willian Rodrigues Macedo

Keyword(s):

Seed Germination ◽

Gibberellic Acid ◽

Germination Rate ◽

Ocimum Basilicum ◽

Shoot Length ◽

Naphthalene Acetic Acid ◽

Initial Growth ◽

Randomized Design ◽

Root And Shoot Length ◽

Completely Randomized Design

Basil (Ocimum basilicum L.) plants have multiple uses, ranging from spice to cosmetic purpose, besides being a source of essential oil and aromatic. These plants were commonly propagated by seed, however, few agrotechnologies are used to enhance the seed germination and initial growth in this crop. For this reason, our research aimed to evaluate aspects of seed germination of Ocimum basilicum L. cv. Limoncino, subjected to different bioregulators applied via substrate imbibition. The experiment was carried out in completely randomized design, with four treatments, as follows: T1: control (distilled water), T2: T13 a solution of a product formulated based on indolbutyric acid + naphthalene acetic acid + gibberellic acid (0.2 mL L-1, Liko Química), T3: gibberellic acid (0.5 mM L-1, progibb-400®) and T4: brassinosteroids (0.1 mM L-1). We evaluated: germination rate, germination speed index (GSI), first count, root and shoot length and chlorophyll a, b, total and carotenoids. The bioregulators did not influence germination, first count, GSI and photosynthetic leaf pigment, but application of gibberellic acid and brassinosteroids improve the shoot and root length, respectively. The gibberellic acid and brassinosteroids are promising bioregulators for stimulating initial basil growth.

Download Full-text

Response of walnut (Juglans regia L.) leaf aqueous extracts, on seed germination and seedling growth of wheat (Triticum aestivum L.) in agri-silvi system of Uttarakhand

Journal of Applied and Natural Science ◽

10.31018/jans.v5i2.343 ◽

2013 ◽

Vol 5 (2) ◽

pp. 411-415

Author(s):

Abhishek Bahuguna ◽

Sandhya Bahuguna ◽

Birendra Prasad

Keyword(s):

Seed Germination ◽

Seedling Growth ◽

Juglans Regia ◽

Wheat Variety ◽

Shoot Length ◽

Dependent Manner ◽

Aqueous Extracts ◽

Leaf Extracts ◽

Concentration Dependent Manner ◽

Root And Shoot Length

Effect of different doses of aqueous extracts of walnut leaf was studied on germinating seeds and early seedling growth of wheat variety (cv. VL-616) recommended for hills under West Himalayan agri-silvi system. Seven treatments comprised of distilled water control (0%), 10%, 20%, 30%, 40%, 50% and 60% concentration of leaf extracts were treated. The effect of aqueous extracts was found inhibitive; indicate a direct proportional relationship with concentration dependent manner on seed germination and subsequent seedling growth of wheat. The wheat variety exhibited extent of phytotoxicity at 60% extracts application in comparison to untreated control. Invariably there was a decrease in first count, germination, seedling root and shoot length, seedling fresh and dry weight and vigour index with increasing aqueous extracts concentration on germinating wheat, however the shoot length was observed maximum at 60% concentration.

Download Full-text

Comparison of Seed Germination, Root and Shoot Length of Maize and Wheat Crops with Compost Leachate and Commercial Fertilizer

BioScientific Review ◽

10.32350/bsr.0103.03 ◽

2019 ◽

Vol 01 (03) ◽

pp. 15-22

Author(s):

Ayesha Ameen ◽

Omer Mushtaq

Keyword(s):

Seed Germination ◽

Germination Rate ◽

Shoot Length ◽

Commercial Fertilizer ◽

Maize Crop ◽

Environment Friendly ◽

Important Concern ◽

Root And Shoot Length ◽

Compost Leachate ◽

Experimental Trials

The increasing public concern about municipal solid waste (MSW) due to its impact on health and environment induces people to think about more ways of recycling this waste. These days, people strive to find more appropriate methods and processes to treat MSW for its proper management and disposal. Composting process is the most appropriate method of recycling used to get rid of organic fractions. The most important concern is the production of compost leachate. This study was designed to check the potential of compost leachate as a chemical fertilizer and to compare it with commercial fertilizer. Different dilutions of compost leachate and commercial fertilizer were used to check their effects on seed germination of wheat and maize crop and the initial root and shoot length measurement of these crops. Germination index, germination inhibition and germination rate were also evaluated in different experimental trials with variation in leachate dilution. The results showed best root, shoot length and seed germination at low quantity of leachate sample. The obtained results showed that leachate has better fertilizer qualities as compared to commercial fertilizer. Moreover, it is more economical and environment friendly. It also helps in maintaining the structure of soil and conditions the soil.

Download Full-text