Morphological Study on the Incidence of Intumescence Injury in Tomato Plant Leaves

In the olden days, plant diseases could be measured by visual observation and based on the level and severity of the symptoms on plant leaves. Over the day, it became a high-level degree of complexity due to the huge volume of cultivated plants. Now a day, the diseases are very different due to diverted manure procedures, and its diagnosis will be very tough even experienced farmers and agronomists too. Even though, after diagnosis, there is a lack of perfect remedy or mistaken treatment for that. The plants are affecting by many vascular fungal diseases which are widespread in many crops. Fusarium wilt (FW) is one of the fungal diseases in many plants. Mostly the tomato, sweet potatoes, tobacco, legumes, cucurbits plants are affected by this Fusarium oxysporum (FO) disease often due to its soil. The main goal of this research article is used to determine FO disease in the tomato plant leaves. Besides, the proposed algorithm constructs model with two times classifying and identifying the disease for better accuracy. The open database consists of 87k images with 60% affected leaves images, 40% healthy plant leaves too. Our proposed hybrid algorithm is found the disease with 96% accuracy with the huge amount of dataset.

Download Full-text

Tomato Plant Leaves Disease Classification Using KNN and PNN

International Journal of Computer Vision and Image Processing ◽

10.4018/ijcvip.2019010104 ◽

2019 ◽

Vol 9 (1) ◽

pp. 51-63 ◽

Cited By ~ 2

Author(s):

Balakrishna K. ◽

Mahesh Rao

Keyword(s):

Food Security ◽

Tomato Plant ◽

Tomato Leaf ◽

Plant Diseases ◽

Disease Classification ◽

Plant Leaves ◽

Second Stage ◽

Major Threat ◽

Fusion Approach

Plant diseases are a major threat to the productivity of crops, which affects food security and reduces the profit of farmers. Identifying the diseases in plants is the key to avoiding losses by proper feeding measures to cure the diseases early and avoiding the reduction in productivity/profit. In this article, the authors proposed two methods for identification and classification of healthy and unhealthy tomato leaves. In the first stage, the tomato leaf is classified as healthy or unhealthy using the KNN approach. Later, in the second stage, they classify the unhealthy tomato leaf using PNN and the KNN approach. The features are like GLCM, Gabor, and color are used for classification purposes. Experimentation is conducted on the authors own dataset of 600 healthy and unhealthy leaves. The experimentation reveals that the fusion approach with PNN classifier outperforms than other methods.

Download Full-text

Detecting the Infectious Area Along with Disease Using Deep Learning in Tomato Plant Leaves

2020 3rd International Conference on Intelligent Sustainable Systems (ICISS) ◽

10.1109/iciss49785.2020.9316108 ◽

2020 ◽

Author(s):

Piyush Juyal ◽

Sachin Sharma

Keyword(s):

Deep Learning ◽

Tomato Plant ◽

Plant Leaves

Download Full-text

EFFECTIVENESS OF SOME SYNTHETIC INSECTICIDES AGAINST THE WHITEFLY, Bemisia tabaci ON TOMATO, Lycopersicon esculentum MILL. AND INFESTATION IMPACTS ON CERTAIN PHOTOSYNTHETIC PIGMENTS CONCENTRATIONS OF TOMATO PLANT LEAVES

Journal of Productivity and Development ◽

10.21608/jpd.2020.126072 ◽

2020 ◽

Vol 25 (3) ◽

pp. 307-321

Author(s):

Ahmed Bughdady ◽

Abd Elhamid Mehna ◽

Tarek Amin

Keyword(s):

Lycopersicon Esculentum ◽

Bemisia Tabaci ◽

Photosynthetic Pigments ◽

Tomato Plant ◽

Plant Leaves ◽

Lycopersicon Esculentum Mill

Download Full-text

ANTIBACTERIAL ACTIVITY OF SILVER NANOPARTICLES SYNTHESIZED USING CITRUS SINENSIS PEEL EXTRACT AGAINST PATHOGENS ISOLATED FROM DISEASED TOMATO (SOLANUM LYCOPERSICUM L.)

Bacterial Empire ◽

10.36547/be.2021.4.1.1-3 ◽

2021 ◽

Vol 4 (1) ◽

pp. 1-3

Author(s):

ONYEMAECHI OBIAZIKWOR ◽

Hakeem Olalekan SHITTU

Keyword(s):

Silver Nanoparticles ◽

Antibacterial Activity ◽

Tomato Plant ◽

Plant Diseases ◽

Diffusion Method ◽

Plant Leaves ◽

Citrus Peel ◽

North East ◽

Plant Disease Management ◽

Peel Extract

Among all the noble nanoparticles, silver nanoparticles have gained boundless interests because of their unique properties such as chemical stability, catalytic and most important antimicrobial activities. This study was carried out to investigate the antibacterial activity of phytosynthesized silver nanoparticles against bacteria pathogens isolated from diseased tomato plant leaves. Silver nanoparticles were synthesized using Citrus peel extract and the formation of nanoparticles was monitored using spectrophotometer. Diseased tomato plant leaves were obtained from a farm located at Ovia North-East Local Government Area, Edo State, Nigeria for the isolation of bacteria pathogens. The isolated bacteria include Pseudomonas sp. and Enterobacter sp. Antibacterial testing using the phytosynthesized silver nanoparticles was carried out via the agar well diffusion method on the test isolates. Zones of inhibition of 10 and 8 mm were obtained for Enterobacter and Pseudomonas species respectively by 100 µl nanoparticles treatment after 24 hours of incubation. This indicated that the phytosynthesized silver nanoparticles have antibacterial activity against the bacterial pathogens. Further studies should be carried out to determine the mode of action of silver nanoparticles and the potential of the test nanoparticles in plant disease management. The potential of members of the genus, Enterobacter as causative agents of plant diseases should be further investigated.

Download Full-text

Ectodesmata as Revealed By Freeze-Etch Preparations of Plant Epidermal Cell Walls

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100072782 ◽

1973 ◽

Vol 31 ◽

pp. 468-469

Author(s):

N.C. Lyon ◽

W. C. Mueller

Keyword(s):

Electron Microscopy ◽

Acetic Acid ◽

Nitric Acid ◽

Oxalic Acid ◽

Light Microscopy ◽

Epidermal Cell ◽

Cell Walls ◽

Plant Viruses ◽

Plant Leaves ◽

Thin Sections

Schumacher and Halbsguth first demonstrated ectodesmata as pores or channels in the epidermal cell walls in haustoria of Cuscuta odorata L. by light microscopy in tissues fixed in a sublimate fixative (30% ethyl alcohol, 30 ml:glacial acetic acid, 10 ml: 65% nitric acid, 1 ml: 40% formaldehyde, 5 ml: oxalic acid, 2 g: mecuric chloride to saturation 2-3 g). Other workers have published electron micrographs of structures transversing the outer epidermal cell in thin sections of plant leaves that have been interpreted as ectodesmata. Such structures are evident following treatment with Hg++ or Ag+ salts and are only rarely observed by electron microscopy. If ectodesmata exist without such treatment, and are not artefacts, they would afford natural pathways of entry for applied foliar solutions and plant viruses.

Download Full-text

Techniques for preparing the Lolium perenne coleorhiza for scanning electron microscope evaluation

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100124239 ◽

1992 ◽

Vol 50 (1) ◽

pp. 766-767

Author(s):

Susan B.G. Debaene ◽

John S. Gardner ◽

Phil S. Allen

Keyword(s):

Electron Microscope ◽

Scanning Electron Microscope ◽

Lolium Perenne ◽

Morphological Study ◽

Root Hairs ◽

Inner Pressure ◽

Water Potentials ◽

Radicle Emergence ◽

Standard Fixation ◽

Scanning Electron

The coleorhiza is a nonvascular sheath that encloses the embryonic radicle in Poaceae, and is generally the first tissue to emerge during germination. Delicate hairlike extensions develop from some coleorhiza cells prior to radicle emergence. Similar to root hairs, coleorhiza hairs are extremely sensitive to desiccation and are damaged by exposure to negative water potentials. The coleorhiza of Lolium perenne is somewhat spherical when first visible, after which a knob forms at a right angle to the caryopsis due to inner pressure from the elongating radicle. This knob increases in length until the radicle finally punctures the coleorhiza. Standard fixation procedures cause severe desiccation of coleorhiza cells and hairs, making morphological study of the coleorhiza difficult. This study was conducted to determine a more successful process for coleorhiza preservation.

Download Full-text