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Mallapur, C. P.
- Genetic Variability of Brown Lacewing, Micromus Igorotus Banks (Haemerobidae: Neuroptera) and Dipha Aphidivora (Meyrick) (Pyralidae: Lepidoptera) Through Rapd Markers in Sugarcane Ecosystem
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Authors
Affiliations
1 Department of Entomology, University of Agricultural Sciences, Dharwad, Karnataka, IN
1 Department of Entomology, University of Agricultural Sciences, Dharwad, Karnataka, IN
Source
International Journal of Plant Protection, Vol 7, No 2 (2014), Pagination: 281-286Abstract
This study used 10 RAPD markers, to provide insight into the genetic variability through, molecular characterization of brown lacewing and Dipha aphidivora from different geographical locations under laboratory conditions. There existed variation in the DNA profiling among all samples. The dendrogram constructed using symmetric matrix of different samples resulted into two major clusters. The similairity matrix pertaining to different isolates of Micromus igorotus and Dipha aphidivora revealed that the similarity co-efficient ranged from 0.5-0.80 and 0.57-0.80, respectively. The highest genetic similarity index (0.80) of Micromus igorotus was seen between the isolates from Bangalore and Poona followed by 0.6 between the isolates from Bangalore and both Dharwad and Bagalkot. However, the highest genetic similarity index of 0.8 was seen between the isolates Dipha aphidivora from Assam and Poona followed by 0.57 was seen between Bangalore and Dharwad and also from Bangalore and Sameerwadi (Bagalkot).Keywords
Genetic Similarity, Molecular Chacterization, Micromus igorotus, Dipha aphidivora, RAPD, PCR- Management of Sunflower Powdery Mildew Caused by Erysiphe cichoracearum Dc. with Botanicals and Natural Products
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Authors
Affiliations
1 Department of Plant pathology, College of Agriculture, University of Agricultural Sciences, Dharwad (Karnataka), IN
1 Department of Plant pathology, College of Agriculture, University of Agricultural Sciences, Dharwad (Karnataka), IN
Source
International Journal of Plant Protection, Vol 8, No 2 (2015), Pagination: 295-298Abstract
Sunflower is reported to suffer heavy losses because of fungal, viral and bacterial diseases and one of the prominent diseases among them is powdery mildew caused by E. cichoracearum. Recently Powdery mildew is most important limiting factors for production of sunflower in Karnataka. Management of powdery mildew in sunflower was studied in both in vitro and in vivo conditions. Azadirachtin, NSKE, Turmeric (leaf extract), Lantana camara (leaf extract) and Ipomoea carnea (leaf extract) were effective in inhibiting spore germination of pathogen both under in vitro condition at 5 per cent concentration. Similar trend was observed in field condition also with Azadirachtin and NSKE at 5 per cent concentration with least disease incidence of 25.78 and 27.56 per cent disease index, respectively in contrast to 83.33 per cent disease index in control.Keywords
Sunflower Powdery Mildew, Erysiphe circhoracearum Dc., Lantana Camara (Leaf Extract).References
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