Sankari Meena – författare
Visar alla böcker från författaren Sankari Meena. Handla med fri frakt och snabb leverans.
3 produkter
3 produkter
E-bok
PDF, Engelska, 2014464 kr
Läs direkt efter köp
Scientific Study from the year 2014 in the subject Biology - Micro- and Molecular Biology, Tamil Nadu Agricultural University, language: English, abstract: Root knot nematode, Meloidogyne incognita, is an important nematode parasite of tuberose. A study was undertaken to assess the evaluation of plant growth promoting rhizobacteria (PGPR) against Meloidogyne incognita infestation on tuberose in vitro, pot culture and field conditions. Tuberose fields were surveyed for the nematode incidence in different districts of Tamil Nadu. Among the nematodes associated with the crop M. incognita caused severe damage to crop. Plant growth promoting rhizobacteria were isolated from soil samples collected from field and subcultured for further studies. The isolates were tested for their efficacy for plant growth promotion by roll towel and pot culture studies with rice plants. Among them, three isolates, viz. BT3, BT8 and BT21 were found to be effective in increasing the plant growth promotion when compared to other isolates. Biochemical characterization of the isolates revealed that the cultures were found to be the group of Bacillus spp. Liquid formulation were prepared for the three isolates with nutrient amendments, viz. glycerol (10 Mm), trehalose (5 mM) and the stickers, viz. starch (2%) and PVP (2%) and the antagonistic effect of different Bacillus isolates were studied against M. incognita in vitro. Effect of liquid formulation of the Bacillus strains were tested against M. incognita under greenhouse and field condition. Histopathological studies were carried out for the B. subtilis treated and untreated plants.
Häftad, Engelska, 2015
804 kr
Skickas inom 3-6 vardagar
E-bok
PDF, Engelska, 2015396 kr
Läs direkt efter köp
Master's Thesis from the year 2004 in the subject Biology - Parasitology, grade: First, Tamil Nadu Agricultural University, course: Plant Nematology, language: English, abstract: Nematodes are tiny, microscopic round worms which are subterranean in nature and affect almost all the agricultural crops and cause substantial yield loss to the farmers. Nematode management over years relied on chemical methods. Owing to the ill effects with the application of chemicals, ecofriendly methods are gaining importance now a days in nematode management. Marigold is an effective antagonistic plant against nematodes. The plant, by the production of alpha terthienyl bithenyl compounds from its roots, repel the nematodes and reduce its population. Understanding the mechanism involved in the antagonistic nature of the plants will result in the better enhancement of the nematode management practices in an environmental friendly approach. Tomato (Lycopersicon esculentum Mill.) is the most important solanaceous vegetable. In India, it is produced around 1, 75, 00,000 MT/ha. Lycopene, an antioxidant is the primary product of tomato, which gives colour to the fruit and protects humans against cancer and heart diseases. Moreover the fruit is also rich in Vitamin A and C. Among the yield reducing factors in tomato, root knot nematode, Meloidogyne incognita is the only species known to cause economic damage and often happens to be the major limiting factor in the successful cultivation of tomato (Lycopersicon esculentum Mill.) In affected roots, the functional root system gets modified to galls and it impairs the uptake of water and nutrients. Poor development of root system makes the plant highly susceptible to drought. The entire root system may be shallow with excessive branching.