Kinetin modulates physiological and biochemical attributes of Vigna radiata L. seedlings exposed to 2-benzoxazolinone stress

Biologia ◽  
2021 ◽  
Author(s):  
Niharika ◽  
Narsingh Bahadur Singh ◽  
Shubhra Khare ◽  
Ajey Singh ◽  
Vijaya Yadav ◽  
...  
1996 ◽  
Vol 74 (1) ◽  
pp. 135-139 ◽  
Author(s):  
Anupa Singh

Experiments were conducted under field conditions to assess selected growth, physiological, and biochemical responses of three leguminous plants (Vigna radiata L. (Wilczek) cv. PS-16, Phaseolus mungo L. (Hepper) cv. Mash-48, and Glycine max L. (Merr.) cv. Punjab 1) to enhanced UV-B radiation equivalent to 15% ozone depletion at 25°N latitude. Enhanced UV-B radiation adversely affected growth characteristics, chlorophyll and carotenoid contents, photosynthetic rate, ascorbic acid content, and catalase activity, whereas a reverse trend was found for phenol content and peroxidase activity in all three species. However, the magnitudes of increases or decreases were different among species, and there was no direct relationship between growth and biochemical responses across species. Keywords: chlorophyll, Glycine max, net photosynthesis, Phaseolus mungo, plant growth, Vigna radiata.


2016 ◽  
Vol 5 (04) ◽  
pp. 1318
Author(s):  
Vidya P. ◽  
Shintu V. P.* ◽  
Jayaram M. K.

The main focus of the present study is to evaluate the effect of priming of green gram (Vigna radiata) with phosphate solubilising bacteria (PSB) during drought stress. Drought is the major abiotic stress factor which diminishing the growth and development of agricultural in Kerala. So immediate steps need to be taken to overcome the adverse effect of drought stress for the development of agriculture. Phosphate Solubilizing Bacteria are one of the best microorganisms found to be simultaneously increasing the insoluble soil Phosphorus uptake by the plant and crop yield. In the study, the seeds of Vigna radiata were subjected to priming treatment with 0.5 % and 1% phosphate solubilising bacteria. Physiological and biochemical parameters like germination percentage, root and shoot length, relative water content (RWC), amount of chlorophyll, protein, proline and yield were studied.  Inoculation with phosphate solubilising bacteria showed remarkable variation in both physiological and biochemical parameters of green gram plants. Among the two concentrations tested, 1% phosphate solubilising bacteria was found to be effective in mitigating the effect of water stress, stimulating early flowering and also in increasing yield.


Plants ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 1005
Author(s):  
Hassan S. Al-Zahrani ◽  
Hesham F. Alharby ◽  
Khalid Rehman Hakeem ◽  
Reiaz Ul Rehman

Salt stress adversely affects the growth and productivity of crops. However, reports suggest that the application of various micronutrients could help the plant to cope with this stress. Hence, the objective of the study was to examine the effect of exogenous application of Zinc (Zn) on salt tolerance in Vigna radiata (L.) Wilczek (mungbean). Mungbean is considered to be an economically important crop and possess a strategic position in Southeast Asian countries for sustainable crop production. It is rich in quality proteins, minerals and vitamins. Three weeks old grown seedlings were subjected to NaCl (150 mM and 200 mM) alone or with Zn (250 µM). After 21 days of treatment, plants were harvested for investigating morphological, physiological and biochemical changes. We found that the Zn application mitigates the negative effect upon plant growth to a variable extent. This may be attributed to the increased shoot and root length, improved chlorophyll and carotenoid contents, enhanced total soluble sugar (TSS), total soluble protein (TSP) and proline accumulation, decreased H2O2 content and increased enzymatic antioxidant activities. Zn’s application improved the performance of the enzymes such as phenylalanine ammonia-lyase (PAL) and tyrosine ammonia-lyase (TAL) of the secondary metabolism, which resulted in the improvement of total phenol and flavonoids. The antioxidant activities such as 1,1diphenyl 2-picryl hydrazine (DPPH) and ferrous reducing antioxidant power assay (FRAP) of the plants also showed improved results in their salt only treatments. Furthermore, hydrogen peroxide (H2O2) and superoxide radical (SOD) scavenging activity were also improved upon the application of 250 µM zinc. Thus, Zn application in low doses offers promising potential for recovering plants suffering from salinity stress. In conclusion, we assume that zinc application improved salt tolerance in mungbean through the improvement of various physiological and photochemical processes which could prove to be useful in nutrient mediated management for crop improvement.


Planta Medica ◽  
2011 ◽  
Vol 77 (12) ◽  
Author(s):  
SR Singh ◽  
PA Tatke ◽  
VP Naharwar

2018 ◽  
Vol 24 (2) ◽  
Author(s):  
SUPRIYA DIXIT ◽  
R. K. GUPTA

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.


2013 ◽  
Vol 65 (1) ◽  
pp. 133-150 ◽  
Author(s):  
Mady A. Ismail ◽  
Sobhy I. I. Abdel-Hafez ◽  
Nemmat A. Hussein ◽  
Nevein A. Abdel-Hameed

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