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S. Mauria , R. K. Arora

Abstract

This paper examines the distribution and diversity of different bamboos taxa in Indian context. The overall bamboo genetic resources scenario in the country is discussed to take stock of existing national resources to meet the increasing demand for exploitation of economically useful bamboo species and their conservation.

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R. K. Arora

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The occurrence of Xylia xylocarpa Taub., in relation to soil, climate and topography for the North Kanara district is discussed. This species which is generally said to occur on laterite, is seen to grow equally well on other geological formations, i.e. schist, shale, sandstone, gneiss/granite, etc. The role of Xylia as an indicator in explaining the succession of forest communities is also discussed.

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R. K. Arora

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No abstract

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R. K. Arora

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No abstract

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G. S. Puri , R. K. Arora

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The medicinal fern-flora of Western India is dealt with. Descriptive notes based on herbarium sheets have been given along with the medicinal uses of the plants. The article mainly intends to give information on the areas of distribution.

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R. K. Arora

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The floristic composition of three Forest types, i.e., scrub, deciduous and evergreen forests, for the district of Coorg is described, and the status of each type has been indicated. The interrelationship of these three types is presented and the status of the climax types discussed. The different communities as worked out for each Forest type have been rated on comparative basis.

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R. K. Arora

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1. The percentage composition of life-forms for the flora of North Kanara district has been worked out, and the data compared to the normal spectrum of Raunkiaer. 2. Probable evidence for the unnatural picture presented by this humid tropics area is furnished on the basis of various factors prevailing locally. The composition of the lowland and upland types is also worked out.

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Neerja Sharma ¹, R. K. Arora ¹, Sanjay Kher ¹

Affiliations
1 Krishi Vigyan Kendra (SKUAST-J), Poonch (J&K), IN

Abstract

No Abstract

Keywords

Attitude, On-campus Trainees, Off-campustrainees

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Neerja Sharma ¹, Sanjay Khar ¹, R. K. Arora ¹

Affiliations
1 Krishi Vigyan Kendra (SKAUST-J), Poonch (J&K), IN

Abstract

Women play a significant and crucial role in agricultural development and allied fields. Rural women's work ranges from crop production to harvesting operations, from live stock rearing to raising babies. In addition to her daily work routine, consisting of, cooking, cleaning and other domestic chores, rural women are also heavily involved in all aspects of country's agricultural sector. From crop production to livestock rearing, rural women are expected to regularly engage both domestic and commercial aspects of society. Despite such a huge contribution, her role has yet not been recognized. By and large they have remained invisible workers. Therefore, efforts were made to analyze the work performed by women in agriculture. The study was undertaken in Poonch district of Jammu division. A total of 150 farm women were selected as respondents through proportionate random sampling. The selected respondents were interviewed personally using pre-tested well structured interview schedule. The data were analysed using appropriate statistical tool. The findings showed that cutting, picking, cleaning of grains, drying of grains, storage, processing, weeding, winnowing were the major farm operations, which are mainly performed by farm women. Participation of farm women in agriculture was significantly affected by socio-economic variables like-age, family income, land holding.

Keywords

Participation of Farm Women, Role Performance, Invisible Workers.

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D. K. Bhatt ¹, V. K. Joshi ¹, R. K. Arora ¹

Affiliations
1 Geological Survey of India, 84B, Nirala Nagar, Lucknow 226007, IN

Abstract

The paper describes a new species of the conodont form-genus Neospathodus Mosher, under the specific name N. praekummeli sp. nov. The presently recorded new species has a close morphologic and biostratigraphic relation with the well-known Dienerian guide-species N. kummeli Sweet.

In the Lower Triassic sequence of Spiti the first appearance of N. praekummeli sp. nov. marks the base of Ophiceras bed. It is likely that N. kummeli Sweet has evolved from N. praekummeli sp. nov. near the base of Ophiceras bed.

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D. K. Bhatt ¹, R. K. Arora ¹

Affiliations
1 Palaeontology Division, Geological Survey of India, Calcutta 700016, IN

Abstract

The history of research on the chronostratigraphic status of Otoceros fauna of Himalaya has been traced and the brachiopod, pelecypod and ammonoid biostratigraphy of the classical Otoceras bed of Himalayan sections has been critically reviewed. It is observed that the impact of over-all change in the palaeobiological communities, in the sense of change from Palaeozoic to Mesozoic, is better discernible at the base of Ophiceras bed. This megafaunal observation is supported from the vertical distribution of conodonts. This calls for revision of the traditional view of placing the Permian-Triassic boundary at the base of Otocerus bed.

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D. K. Bhatt ¹, V. K. Joshi ¹, R. K. Arora ¹

Affiliations
1 Geological Survey of India, Jaipur - 302 004 & Lucknow - 226 024, IN

Abstract

Early Triassic sequence of about 30 m thickness is exposed at Lalung (Lilang) in Spiti, Himachal Pradesh. The sequence, traditionally defined by the Otocerus bed at the base and the Keyserlingites bed at the top, is biostratigraphically defined in this paper by eight successive conodont zones, which in the ascending order are: Neogondolella orientalis - N. subcarinata Assemblage Zone, Neospathodus kummeli Zone, Neospathodus dieneri Zone, Neospathodus cristugalli Zone, Neospathodus pakistanensis-Neogondolella nepalensis Assemblage Zone, Neospathodus waageni Zone, Neogondolella elongata Zone and Neospathodus timorensis Zone. These conodont zones are delineated on the basis of data from Lalung, Mud (Muth), Guling (Kuling) and Spiti River sections in the Spiti valley.

Keywords

Palaeontology, Conodont Zones, Lower Triassic, Spiti, Himachal Pradesh.

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R. K. Arora ¹, E. Roshini Nayar ¹

Affiliations
1 National Bureau of Plant Genetic Resources, I.A.R.I. Campus, New Delhi, IN

Abstract

The wild relatives of crop plants and related species arc of considerable importance in studies on crop improvement and in providing basic information on species relationships. The concentration of these taxa lies in the centres of diversity of crop plants. The Indian sub-continent forms part of such a centre of diversity (Vavilov, 1950, Zeven and Zhukovsky, 1975). Further, this diversity has also been enriched due to active gene exchange with the surrounding regions, particularly in the northern/north-eastern parts (Chatterjee, 1939). In this paper, a synthesis of the diversity and distribution of such flora has been attempted, pinpointing areas of concentration of these wild types so that this information can be profitably utilized particularly by the plant explorers. Collection, study and conservation of this genetic wealth is of great importance.

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R. K. Arora ¹

Affiliations
1 B.S.I., Western Circle, Poona, IN

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No Abstract.

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R. K. Arora ¹, G. Sen Gupta ¹

Affiliations
1 Botanical Survey of India, Calcutta, IN

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No Abstract.

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R. K. Arora ¹, S. P. Banerjee ¹

Affiliations
1 Botanical Survey of India, Calcutta, IN

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No Abstract.

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R. K. Arora ¹, K. L. Mehra ¹

Affiliations
1 National Bureau of Plant Genetic Resources, New Delhi, IN

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No Abstract.

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R. K. Arora ¹

Affiliations
1 Pusa Campus, New Delhi, IN

Abstract

No Abstract.

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