Research Complex for Eastern Region Research Center

Ranchi Jharkhand, India

Research Complex for Eastern Region Research Center

Ranchi Jharkhand, India
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Mukherjee D.,Research Complex for Eastern Region Research Center | Singh P.K.,Research Complex for Eastern Region Research Center | Kumari A.,Research Complex for Eastern Region Research Center | Das B.,Research Complex for Eastern Region Research Center | Choudhary J.S.,Research Complex for Eastern Region Research Center
Journal of Entomological Research | Year: 2016

Detailed study revealed that the life cycle of D. marginatus from egg to adult stage lasted for 19.1 ± 2.17 days with nearby 55 days from egg to egg with 96.17 ± 3.07% hatchability. The grub passes through three instars in fallen cut leaves. Data on population dynamics revealed the fact that the seasonal population progression of D. marginatus was synchronized with initiation of new leaves in grafted young plants in nursery in the month of June to October.


Prabhakar C.S.,CSK Himachal Pradesh Krishi Vishvavidyalaya | Prabhakar C.S.,Research Complex for Eastern Region Research Center | Mehta P.K.,CSK Himachal Pradesh Krishi Vishvavidyalaya | Sood P.,CSK Himachal Pradesh Krishi Vishvavidyalaya | And 5 more authors.
Genetica | Year: 2012

Population genetic structure of melon fly analysed with mitochondrial cytochrome oxidase I gene suggested that melon fly populations across the globe is homogeneous with non-significant variation of 0. 000-0. 003 base substitutions per site. Test isolates representing various geographic situations across the world were placed in 26 mitochondrial haplotypes based on variations associated with a maximum of three mutational steps and the predominant haplotype i. e. H1 was present in all melon fly populations except Hawaiian population. Evolution of mtCOI gene suggested that the fly could have originated some 0. 4 million years ago. The present study also indicated that the B. cucurbitae population expansion is an event of post Pleistocene warm climatic conditions with small number of founder population. The invasion of B. cucurbitae in Hawaii was associated with the large population size and the global presence of the fly is associated with human mediated dispersal. The very low genetic variation suggested that the fly management might be possible by large scale sterile insect techniques programme. © 2012 Springer Science+Business Media B.V.


Bhavana P.,Research Complex for Eastern Region Research Center | Singh A.K.,Research Complex for Eastern Region Research Center
Bangladesh Journal of Botany | Year: 2016

Brinjal or eggplant is cultivated throughout India. Biodiversity is an essential requirement to operate natural and artificial selection. Bacterial wilt of brinjal caused by Ralstonia solanacearum. One hundred germplasm of brinjal received from NBPGR, New Delhi were evaluated. Highest yield was recorded in IC-285126 (3.29 kg/plant; fruit weight 200.0 g; fruit length 11.40 cm and round green) followed by IC-809900 (1.81 kg/plant; fruit weight 200.0 g; fruit length 16.50 cm and long light purple). Eight lines found to be wilt resistant under natural field conditions were screened in rainy season. Out of these only two lines were found resistant at 90 DAT viz; IC-261786 (120.62 q/ha; fruit weight 118.0 g; fruit length 17.3 cm and long green) and IC-261793 (63.12q/ha; fruit weight 252.0 g; fruit length 7.7 cm and round green striped) with 84% plant survival against bacterial wilt. Thus the identified germplasm can further be utilized for pre-breeding aimed at developing wilt resistant high yielding varieties.


Choudhary J.S.,Research Complex for Eastern Region Research Center | Prabhakar C.S.,Research Complex for Eastern Region Research Center | Maurya S.,Research Complex for Eastern Region Research Center | Kumar R.,Research Complex for Eastern Region Research Center | And 2 more authors.
Phytoparasitica | Year: 2012

An entomopathogenic fungus belonging to the genus Hirsutella was found infecting the mango hopper, Idioscopus clypealis (Lethierry) (Hemiptera: Cicadellidae), for the first time in India in September 2011. The report of a natural control agent of mango hopper during the off season has special significance because its outbreak depends upon its residual hibernating population. © 2012 Springer Science + Business Media B.V.

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