000			02950nam a22002177a 4500
003			OSt
005			20240203161818.0
008			130824b xxu||||| |||| 00| 0 eng d
040			_cCPGS
082			_a633.383
100			_aKangjam, Binalata _91207
245			_aManagement of turmeric leaf spot,colletotrichum capsici (Syd.) butler and bisby under in-vitro condition / _cby Binalata Kangjam
260			_aUmiam : _bCPGS, CAU _cc2012
300			_a[26], 64p.: _bill., some col.;
440			_a[Plant Pathology, School of Crop Protection] _91208
520			_aLeaf spot incited by Colletotrichum capsici is one of the most serious foliar diseases of turmeric and becoming a major limiting factor for production and quality of the turmeric in India. The disease has also been found to occur frequently in the turmeric fields of Meghalaya. The experiments were conducted in order to have basic information on disease incidence and yield loss in turmeric varieties (Lakadong, Waiphei, Megha turmeric-1 and Meghalaya local) and in-vitro evaluation of various botanicals, biocontrol agents (BCAs) and fungicides. The field study revealed that Megha turmeric-1 showed the least per cent disease index (POI) (49.19%) with minimum yield loss (21.78%) while Waiphei had the highest POI (75.93%) with maximum yield loss (55.16%). The second least yield loss (26.93%) was observed in Meghalaya local with POI of 51.11 %. Growth pattern and sporulation of the pathogen were also evaluated by using five different culture media under laboratory condition. The highest mycelial growth (82.56 mm) in Oat meal agar medium and the least (4:3.03 mm) in Rose Bengal agar medium were observed. No sporulation was found in Richard's agar medium, whereas maximum sporulation was found in all the other media. Under in-vitro condition, eight plant extracts, five BCAs and seven fungicides were evaluated to find out their efficacy against the pathogen. Out of eight plant extracts used, clove extract of garlic showed the maximum inhibition on mycelial growth of fungus (100%) followed by pigeon berry (98.44%) and ghaneri extracts (94.00%). Dual culture assays carried out with the BCAs showed that Trichoderma harzianum (74.89%) had highest percent inhibition of the fungal growth whereas Pseudomonas putida had least inhibition (56.22%). Among chemicals, complete inhibition of mycelial growth (100%) was observed in Sixer (Carbendazim + Mancozeb), Tilt (Propiconazole) and Avone (Hexaconazole) at all three concentrations (0.1%, 0.2% and 0.3%) whereas least inhibition (64%) was observed in Mancozeb at 0.2%. The best performed genotypes, plant extracts, BCAs and fungicides could be utilized as components of integrated disease management after making thorough field evaluation in future.
650			_aTurmeric leaf spot _xManagement _91209
650			_aButler and Bisby _xUnder in-vitro condition _91210
700			_aT.Rajesh _eMajor Advisor _91211
942			_2ddc _cTH
999			_c4097 _d4097