Indira Gandhi Krishi Vishwavidhyalaya

Raipur, India

Indira Gandhi Krishi Vishwavidhyalaya

Raipur, India
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Singh S.,Indira Gandhi Krishi Vishwavidhyalaya | Gupta S.,Indira Gandhi Krishi Vishwavidhyalaya | Singh A.P.,Indira Gandhi Krishi Vishwavidhyalaya
Indian Journal of Ecology | Year: 2016

Bastar region of Chattisgarh was surveyed for the present weed flora and invasion of any re-surging or alien weed species in cropped and non-cropped area. Cyperus rotundus and C. dactylon registered highest Importance Value Index (I VI) in rice and rice-fallow crop during kharif and rabi seasons, respectively in Jagdalpur district. However, Cassia tora during kharif and C. dactylon during rabi registered highest IVI in non-cropped area. Out of different weed species in the Bijapur district C. rotundus in rice and C. dactylon in vegetables registered maximum IVI during kharif and rabi seasons, respectively. Cassia tora during kharif and Parthenium hysterophorus during rabi important weed had highest IVI in non-cropped area. Contrary to above, Echinocloa colona in rice and Leucas aspera in rice-fallow registered maximum IVI during kharif and rabi seasons, respectively in Dantewada district.


Katara J.L.,Indira Gandhi Krishi Vishwavidhyalaya | Sonah H.,Indira Gandhi Krishi Vishwavidhyalaya | Deshmukh R.K.,Indira Gandhi Krishi Vishwavidhyalaya | Chaurasia R.,Indira Gandhi Krishi Vishwavidhyalaya | Kotasthane A.S.,Indira Gandhi Krishi Vishwavidhyalaya
Indian Journal of Genetics and Plant Breeding | Year: 2010

Helminthosporiosis or brown spot disease is widely distributed and is known to cause heavy yield losses in rice. In present investigation, a set of 154 doubled haploid (DH) lines derived from a cross between CT 9993-5-10-1M and IR 62266-42-6-2 was used to identify quantitative trait loci (QTLs) for brown spot disease. DH lines along with parents were planted in two different soil environments with two replications each in RCBD and evaluated for the brown spot resistance. We have identified total 10 QTLs for brown spot resistance using MAPMAKER/QTL 1.1 distributed over the eight chromosome of rice. Out of 10 QTLs, four were consistently discovered in both the soil types. The QTL BSq4.1 and BSq11.1 located on the chromosome 4 and 11 were identified in both the environment with higher LOD score and phenotypic variance and will be good candidates for fine mapping and positional cloning studies.

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