Pandey S.K.,Sugarcane Breeding Institute
Vegetos | Year: 2014
Six chemicals namely ; Chlorantraniliprole 20 S.C. @ 0.05 Kg a.i./ha), Chlothianidine 50% WDG @ 0.05 Kg a.i./ha), Imidacloprid 200 S.L. @ 0.02 Kg a.i./ha), Azadiractin 0.15 E.C. 0.03% a.i./ha) and Cartap Hydrochloride 50 W.S.P. 0.75 Kg a.i./ha) along with Chlorpyriphos 20 E.C. @ 1 Kg a.i./ha) as check insecticide were evaluated. Chlorantraniliprole @ 0.04% was most effective as it exhibited least dead hearts of 2.85% with the decrease of 83.43% in the incidence over control followed by Chlorpyriphos @ 0.5% with 4.69% dead hearts and it was statistically at par with Chlothianidine @ 0.25% and 0.50%. Higher dead hearts of 7.21% were observed with Imidacloprid @ 0.02 per cent whereas Azadiractin @ 0.5 per cent was found to be least effective insecticide exhibiting 10.33% dead hearts. Dead hearts in the untreated control were 17.21%. Hence, it can be suggested that Chlorantraniliprole @ 0-04% could be the most preferred option whereas Chlorpyriphos 20 EC 0.5%, Chlothianidine @ 0.5% and Imidacloprid @ 0.02% can be the next choice for ESB control. © 2014, Society for Plant Research. All Rights Reserved.
Sobhakumari V.P.,Sugarcane Breeding Institute
Caryologia | Year: 2013
Thirty-one clones of Saccharum officinarum, collected from New Guinea, were analysed and the somatic chromosome number was determined. Of the 31 clones, 29 showed 2n = 80 (typical clones), while two clones, NG 77-56 and NG 77-26, were atypical with 2n = 116 and 70 respectively. Chromosome number was determined for 62 clones of S. spontaneum, available in the world germplasm collection, through root tip mitosis. Variable numbers were identified from the same area of collection. Clones collected from north-western regions (Gujarat and Rajasthan) of India showed a majority of 2n = 80 types and 2n = 64 types, whereas 62% of clones collected from Meghalaya (north-east) showed 2n = 64. This is the first time that 2n = 80 cytotypes of S. spontaneum have been reported from the western sector of India. The clones collected from Himachal Pradesh and Uttaranchal showed lower number, e.g. 2n = 56 and 2n = 60. © 2013 Dipartimento di Biologia Evoluzionistica, Università di Firenze.
Shanthy T.R.,Sugarcane Breeding Institute
Sugar Tech | Year: 2011
The chances of successful technology dissemination are enhanced by understanding the technology transfer process, the players involved in the process of technology transfer, and by developing strategies that can enhance the prospects of successful transfer. There exists a wide variation in the rural settings, the available resources and the needs of the people therein. Hence, no single extension magic bullet can cater to the varied needs of the farming community. A demand-driven decentralized mode is the best option to address the changes and challenges in sugarcane extension. This paper discusses this thought in detail-if a single extension model/strategy would suffice by itself or an integrated approach tailor made to the situation need to be evolved. © 2011 Society for Sugar Research & Promotion.
Nair N.V.,Sugarcane Breeding Institute
Sugar Tech | Year: 2011
Sugarcane breeding in India is almost a century old. The first interspecific cross between S. officinarum × S. spontaneum was made in 1912 at Sugarcane Breeding Institute (SBI), Coimbatore and Co 205, one of the resultant hybrids was released for cultivation in 1918 marking the beginning of the sugarcane varietal improvement programmes in the country based on interspecific hybridization, back crossing of the hybrids to S. officinarum followed by intercrossing of the back cross derivatives. Apart from SBI, 23 state research stations also contribute to the sugarcane varietal development in the country. The current breeding strategy is that of a centralized hybridization programme at Coimbatore followed by progeny evaluation and selection at the 23 research stations located across the country to identify improved location-specific varieties. Consequently the varieties bred by SBI and the associate centres occupy over 90% of the cane area in the country. © 2011 Society for Sugar Research & Promotion.
Shanthy T.R.,Sugarcane Breeding Institute |
Thiagarajan R.,Sugarcane Breeding Institute
Journal of Agricultural Education and Extension | Year: 2011
In this article, the practicability of introduction of computer multimedia as an educational tool was compared with the traditional approach for training sugarcane growers in ratoon management practices in three villages of Tamil Nadu state, India using pre-test, post-test control group experimental design. A CD-ROM was developed as a multimedia resource to support the training process using Macromedia Flash as the authorware. Three modes of message delivery-traditional lecture alone, lecture followed by multimedia and multimedia alone were analyzed for their effectiveness in terms of knowledge gain, learning index and extent of adoption. The group which was exposed to lecture followed by multimedia had better knowledge gain and learning index. Farmers perceived that the use of different multimedia building blocks made it an interesting and educative tool. The message, when given through lecture alone was perceived as boring and monotonous with limited attention span. The extent of adoption of ratoon management practices was almost on par; however the group which had received instructions through lecture followed by computer multimedia had a better adoption rate. Such a comparative analysis is an opportunity for a better understanding of the role that multimedia could play in technology transfer to farmers. © 2011 Wageningen University.