Diversity among 36 snapmelon landraces, collected from 2 agro-ecological regions of India (9 agro-climatic sub-regions), was assayed using RAPD primers, morphological traits of plant habit and fruit, 2 yield-associated traits, pest and disease resistance and biochemical composition (TSS, ascorbic acid, titrable acidity). Typical differences among accessions were observed in plant and fruit characteristics and snapmelon germplasm with high titrable acidity and possessing resistance to downy mildew, Cucumber mosaic virus, Zucchini yellow mosaic virus, Papaya ringspot virus, Aphis gossypii and Meloidogyne incognita was noticed in the collection. RAPD based grouping analysis revealed that Indian snapmelon was rich in genetic variation and region and sub-region approach should be followed across India for acquisition of additional melon landraces. Accessions of var. agrestis and var. momordica clustered together and there was a separate cluster of the accessions of var. reticulatus. Comparative analysis of the genetic variability among Indian snapmelons and an array of previously characterized reference accessions of melon from Spain, Israel, Korea, Japan, Maldives, Iraq, Pakistan and India using SSRs showed that Indian snapmelon germplasm contained a high degree of unique genetic variability which was needed to be preserved to broaden the genetic base of melon germplasm available with the scientific community.
Among socio-economic, technological and managerial reasons, ineffective transfer of farm technology is important causal factors for poor performance of agriculture. Transfer of technology has been the major obstacle in achieving the targets in past. Present study deals with level of adoption of modern agricultural technology, access and quality of modern technology, outreach of agricultural extension institutions and problems faced by extension officials in transfer of farm technology in Bihar. Study is based on primary data obtained through survey of farm households, agricultural scientists and extension officers in Bihar. Study revealed the coverage of agricultural development programmes limited to few villages, and line departments still dominating technology transfer arena. Institutions like ATMA and KVK were limited to few activities only. Adoption level of artificial insemination is comparatively high due to active participation of co-operatives and private sector, but less than one fourth of farmers could adopt advanced horticulture and modern crop seeds in Bihar. Small size of land holding and fragmented land emerged as main constraint to adoption of modern horticultural technology in Bihar. While analyzing use of modern varieties of principal crops, comparatively high level of adoption on small and medium farms was observed. Dissemination of information about modern agricultural development projects/ schemes is a necessary factor for adoption of modern technology. ATMA and KVK have performed better in dissemination of the information, however, inadequate staff, infrequent supervision and lack of conveyance facility are most important constraints faced in transfer of technology in Bihar.
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