Image Analysis-based System for Estimating Cotton Leaf Area

Aboukarima, Abdulwahed M.; Zayed, Moamen; Minyawi, Mamdouh; Elsoury, Hussien A.; Tarabye, H. H. H.

doi:10.9734/arja/2017/33626

Cited by 12 publications

(9 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Digital images were further processed and analyzed by ImageJ, a robust program that was developed at the National Institutes of Health, USA. Calibrated ImageJ was used to generate various leaf measurements, including leaf area, leaf length, leaf blade width [96,97].…”

Section: Leaf Measurements and Image Analysismentioning

confidence: 99%

Exogenous Ascorbic Acid Induced Chilling Tolerance in Tomato Plants Through Modulating Metabolism, Osmolytes, Antioxidants, and Transcriptional Regulation of Catalase and Heat Shock Proteins

Elkelish

Qari

Mazrou

et al. 2020

Plants

View full text Add to dashboard Cite

Chilling, a sort of cold stress, is a typical abiotic ecological stress that impacts the development as well as the growth of crops. The present study was carried to investigate the role of ascorbic acid root priming in enhancing tolerance of tomato seedlings against acute chilling stress. The treatments included untreated control, ascorbic acid-treated plants (AsA; 0.5 mM), acute chilling-stressed plants (4 °C), and chilling stressed seedlings treated by ascorbic acid. Exposure to acute chilling stress reduced growth in terms of length, fresh and dry biomass, pigment synthesis, and photosynthesis. AsA was effective in mitigating the injurious effects of chilling stress to significant levels when supplied at 0.5 mM concentrations. AsA priming reduced the chilling mediated oxidative damage by lowering the electrolyte leakage, lipid peroxidation, and hydrogen peroxide. Moreover, up regulating the activity of enzymatic components of the antioxidant system. Further, 0.5 mM AsA proved beneficial in enhancing ions uptake in normal and chilling stressed seedlings. At the gene expression level, AsA significantly lowered the expression level of CAT and heat shock protein genes. Therefore, we theorize that the implementation of exogenous AsA treatment reduced the negative effects of severe chilling stress on tomato.

show abstract

Section: Leaf Measurements and Image Analysismentioning

confidence: 99%

Exogenous Ascorbic Acid Induced Chilling Tolerance in Tomato Plants Through Modulating Metabolism, Osmolytes, Antioxidants, and Transcriptional Regulation of Catalase and Heat Shock Proteins

Elkelish

Qari

Mazrou

et al. 2020

Plants

View full text Add to dashboard Cite

show abstract

“…Studying each variety at the age of 60 days, as mentioned above, founded that, using of growth regulators had no significant effect on the leaf area of tomato plants: "Mariana" -33.5-34.1, in Control -34.9 dm2/plant; "Superjol" -36. Using IMAGEJ to measure LAI was studied by [1] who reported that, the coefficient of determination for leaf area measurement by the graphical versus the image analysis-based system was 0.9. As studies on plant growth and development continue to increase analysis-based system method will be a very useful tool for estimating the leaf area for cotton plants without requiring additive expensive devices.…”

Section: Research Resultsmentioning

confidence: 99%

“…Leaf Area Index measured by IMAGEJ program at different ages of tomato plants (30, 60 and 90 DAP). ImageJ Software is a powerful program that was developed at the National Institutes of Health, USA [1]. It is in the public domain, runs on a variety of operating systems, and is updated frequently.…”

Section: Methodsmentioning

confidence: 99%

Applying a digital method for measuring leaf area index of tomato plants

Abdelkader¹,

Puchkov²,

Loktionova³

2019

Proceedings of the International Scientific and Practical Conference “Digital Agriculture - Development Strategy” (ISPC 2019)

View full text Add to dashboard Cite

Non-destructive methods of measuring leaf area are suitable for scientific experiments, and allow the measurement of the same plant several times during the growing period. The method was used to estimate the Leaf Area Index (LAI) of tomato plant in different growth stages. LAI was estimated by measuring the length and width of the leaves representing the mean leaf area of the plants. The LAI estimations presented high precision and accuracy when the proposed methodology was used resulting in time and effort savings and being useful. It is cheap and may existing computer and digital camera; thus, it doesn't need extra hardware. Projected technique is going to be valuable in achieving correct area calculation.

show abstract

“…Before the experiment was conducted, each simulation was covered with a polypropylene bag to protect any cross-contamination from other replicates. In each seedling, photos of Eucalyptus leaves were taken by a digital camera (Cannon EOS 5D Mark III) and the leaf surface area was determined by the Image J software (Aboukarima et al, 2017). Ten mL of C. reteaudii spore suspension (5×10 5 spore/mL) was then sprayed onto the seedling.…”

Section: Experimental Design and Data Measurementmentioning

confidence: 99%

In Vitro and In Vivo Inhibition of Cylindrocladium reteaudii by Essential Oils of Acorus calamus Rhizomes

Sintawarak¹,

Uthairatsamee²,

Keawgrajang³

2020

Environ. Nat. Resour. J.

View full text Add to dashboard Cite

Cylindrocladium reteaudii (Bugnic.) Boesew. is a severe pathogen which can cause leaf blight disease in Eucalyptus seedlings in tropical countries. This study investigated the antifungal activity of essential oils extracted from Acorus calamus L. rhizomes in inhibiting the growth of C. reteaudii, both in in vitro and in vivo experiments. The extraction of essential oils from rhizomes was carried out by hydro-distillation technique and the in vitro antifungal testing was done by using the poisoned food technique. The results indicated that an essential oil concentration of 2,000 ppm can completely inhibit the fungal growth with a 50% inhibitory concentration value of 54.76 ppm. For the in vivo experiment, it was found that an essential oil concentration of 500 ppm and Captan® of 1,000 ppm were not significantly different in inhibiting the growth of C. reteaudii. However, these two treatments significantly inhibited the fungal growth (p<0.05) when compared with the control treatments. Physiological and anatomical characteristics were investigated to check for the antifungal activity after the application of essential oils. Results showed that essential oil spraying had no effect on the leaf transpiration rate and temperature of the Eucalyptus seedlings, but the incident disease ratio was high when an essential oil concentration of more than 1,500 ppm was applied. Therefore, it can be inferred that the essential oils from A. calamus rhizomes at an optimum concentration can be an efficient antifungal compound with a potential to control leaf and shoot blight diseases in Eucalyptus seedlings in a nursery.

show abstract

Image Analysis-based System for Estimating Cotton Leaf Area

Cited by 12 publications

References 6 publications

Exogenous Ascorbic Acid Induced Chilling Tolerance in Tomato Plants Through Modulating Metabolism, Osmolytes, Antioxidants, and Transcriptional Regulation of Catalase and Heat Shock Proteins

Exogenous Ascorbic Acid Induced Chilling Tolerance in Tomato Plants Through Modulating Metabolism, Osmolytes, Antioxidants, and Transcriptional Regulation of Catalase and Heat Shock Proteins

Applying a digital method for measuring leaf area index of tomato plants

In Vitro and In Vivo Inhibition of Cylindrocladium reteaudii by Essential Oils of Acorus calamus Rhizomes

Contact Info

Product

Resources

About