Control of post-harvest anthracnose infection in guava (Psidium guajava) fruits with phosphites, calcium chloride, acetyl salicylic acid, hot water, and 1-MCP

2015 ◽  
Vol 56 (3) ◽  
pp. 330-340 ◽  
Author(s):  
André Freire Cruz ◽  
Nathalia Lima Medeiros ◽  
Gustavo Lessa Benedet ◽  
Maira Borges Araújo ◽  
Carlos Hidemi Uesugi ◽  
...  
2021 ◽  
Author(s):  
Lochan Kaushik ◽  
Rahul Kumar ◽  
Dilip Kumar Reddy ◽  
Prashant Kaushik

Guava is a small, tropical fruit tree grown in various tropical and subtropical regions. Salicylic acid (SA) is a phenolic compound that enhances disease resistance and delays the fruit ripening process. Calcium is an essential cell component that delays ripening, particularly softening of the fruit. The effect of foliar spray of CaCl2, and SA, on the physical and biochemical traits of guava was investigated in the present investigation. The application of CaCl2 2% + SA 2mM was more effective as compared with both when applied alone. The data were recorded on fruit set (%), fruit weight (g), fruit length (cm), fruit diameter (cm), fruit yield (kg), ripening period (days), TSS, acidity, total sugar, ascorbic acid, nitrogen, phosphorus, potassium. CaCl2 2% + SA 2mM was showed better performance in all cases, followed by SA 2mM and CaCl2 2%. Overall, this work determines the influence on guava's essential traits by pre-harvest calcium chloride and salicylic acid.


2019 ◽  
Vol 4 (5) ◽  
pp. 305-317
Author(s):  
M. R. Hanfy ◽  
R. M. M. A. ElShafay ◽  
M. A.M Ali ◽  
S. A. S. Abdallah

1987 ◽  
Vol 48 (4) ◽  
pp. 501-504 ◽  
Author(s):  
C. Doutremepuich ◽  
D. Pailley ◽  
M.C. Anne ◽  
O. de Séze ◽  
J. Paccalin ◽  
...  

2007 ◽  
Vol 87 (3) ◽  
pp. 581-585 ◽  
Author(s):  
Ahmet Korkmaz ◽  
Murat Uzunlu ◽  
Ali Riza Demirkiran

Salicylic acid (SA) is a common plant-produced signal molecule that is responsible for inducing tolerance to a number of biotic and abiotic stresses. An experiment was, therefore, conducted to test whether acetyl salicylic acid (ASA) application at various concentrations through seed immersion or foliar spray would protect muskmelon [Cucumis melo L. (Reticulatus Group)] seedlings subjected to chilling stress. Twenty-one-day-old plants pre-treated with ASA (0, 0.1, 0.25, 0.50 or 1.0 mM) were subjected to chilling stress for 72 h at 3 ± 0.5°C. ASA, applied either through seed immersion or foliar spray, was effective within the range of 0.1 to 1 mM in inducing tolerance to chilling stress in muskmelon seedlings; however, there was no significant difference between application methods. ASA significantly and curvilinearly affected all seedling growth and stress indicator variables tested except shoot dry weight. The best protection was obtained from seedlings pre-treated with 0.5 mM ASA. The highest ASA concentration used was slightly less effective in providing chilling stress protection. Even though both methods provided similar means of protection, due to its simplicity and practicality, immersion of muskmelon seeds prior to sowing in 0.5 mM ASA would be a more desirable method to induce tolerance to chilling stress. Key words: Cucumis melo, aspirin, chilling stress tolerance, gas exchange, electrolyte leakage


2001 ◽  
Vol 53 (4) ◽  
pp. 237-243
Author(s):  
Mohamed Z. Gad ◽  
Mahmoud M. Khattab ◽  
Nadia A. Moustafa ◽  
Jean-Luc Burgaud

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