International Journal of Plant Protection

Ashish Kumar ¹, Tarendra Kumar Sahu ¹

Affiliations
1 Department of Plant Pathology, College of Agriculture, Jawaharlal Nehru Krishi Vishwavidyalaya, Rewa (M. P.), IN

Abstract

The use of micro-organisms that antagonize plant pathogens (biological control) is risk-free when it results in enhancement of resident antagonists and with additional benefit, when it provides the plant growth promotion activity. Ninety per cent of such applications have been carried out with different strains of Trichoderma which have long been recognized as agents for the control of plant disease and for their ability to increase plant growth and development. Due to their antifungal and plant growth promotion properties, many Trichoderma spp. like T. asperellum, T. atroviride, T. harzianum, T. hamatum, T. koningii, T. virens and T. viride are widely used for biocontrol of plant diseases incited by fungal pathogens. In the present investigation, a set of 5 local isolates of Trichoderma harzianum from Madhya Pradesh were used for evaluating their plant growth promotion potential in tomato and it was observed that isolates were having differential inborn capability to provide growth promotion when supplemented as seed and seedling treatment. With the aim of development of commercial formulation for direct use by farmers, five small millet substrates were used and it was observed that barnyard millet maximum supported the colonization of Trichoderma spp. and served as economic source for its multiplication to develop commercial formulation under laboratory conditions.

Keywords

Trichoderma, Colony Forming Unit, Mass Multiplication, Barnyard Millet, Tomato

Full Text

     

Ashish Kumar ¹, Shiv Charan Solanki ¹

Affiliations
1 Department of Plant Pathology, College of Agriculture, Jawaharlal Nehru Krishi Vishwavidyalaya, Rewa (M.P.), IN

Abstract

In the present investigation, efforts were made on the evaluation of different fungicides (systemic, non-systemic and combination of both) against blossom blight and leaf anthracnose of mango under natural conditions. Pooled analysis of three years data indicated that three foliar sprays with a combination of non-systemic and systemic fungicide (carbendazim + mancozeb at 0.2%) at 10 days interval starting from initiation of disease symptom was found most effective in controlling both the diseases. Using this fungicide, blossom blight and anthracnose can be inhibited upto more than 75 per cent. However, among other tested fungicides, tricyclazole (0.1%) treatment resulted in mean PDI of 9.31 per cent and 8.31 per cent for blossom blight and anthracnose, respectively and was recorded as second to carbendazim + mancozeb (0.2%) in controlling the two diseases.

Keywords

Mangifera Indica, Fungicides, Blossom Blight, Anthracnose

Full Text

     

Ramendra Soni ¹, Unnati Soni ², Bhavana Tandon ¹, Ashish Kumar ¹, Sandeep Kumar ¹

Affiliations
1 Department of Molecular and Cellular Engineering, Sam Higginbottom Institute of Agriculture, Technology and Sciences, Allahabad (U.P.), IN
2 Ewing Christian College, Allahabad (U.P.), IN

Abstract

In this current research, carbon quantum dots were synthesized by solvothermal synthesis method, using different solvents. The different solvents which were used for synthesis of carbon dots were 5-Sulphosalicylic acid, and Salicylic acid. In this method 1 per cent salicylic acid and 2 per cent 5-Sulphosalicyic acid was used with ethanol in hydrothermal bomb for 4 hours at 140^oC. After the synthesis period a luminescence was seen with both the solvents. The solvents produced green, violet and blue fluorescence at different wavelengths of UV light.

Keywords

Quantum Dots, Hydrothermal, Solvothermal, Salicylic Acid, 5- Sulphosalicylic Acid.

Full Text