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Nataraj, V.
- Dye Preparation System for Paper Industry Using PLC
Authors
Source
Automation and Autonomous Systems, Vol 8, No 8 (2016), Pagination: 234-246Abstract
The dyes are added in the stock for the purpose of coloring the paper. The dyes used are three types Basic dyes Aciddyes Directdyes Basic dyes owe their solubility to the presence of aminogen basic radical (NH2). They have good affinity to lignin rich pulps like ground wood pulp and unbleached chemical pulp. Acid dyes own their solubility to the presence of acid radicals, phenolic hydroxyl groups and sulphonic radicals (SO3H).. The order of addition of various chemicals in the stock generally followed is rosin, filler dye and finally alum. The blended stock 3-3.4% consistency pulp is pumped to a constant level headbox, to maintain a constant head for the fan pump, so that the final basis weight will be fairly uniform. Before the stock is fed from the head box on the wire, it is subjected to screening through a set of centre-cleaners and selectrifier screen. Selectrifier screen also serves the purpose of straightening the fibers, so that a good forming is achieved in the paper. The methyl violet is a basic dye and rod amine is an acidic dye, which is used as ancoloring agent in the paper process industry.
- Correlation and Path Analysis in Certain Inbred Genotypes of Maize (Zea Mays L.) at Varanasi
Authors
Source
International Journal of Innovative Research and Development, Vol 3, No 1 (2014), Pagination:Abstract
The phenotype as well as genotype correlation and path analysis of agronomic yield and yield contributing characters were analysed in 39 inbreds of maize (Zea mays L.). Grain yield has positive and significant correlation with ear diameter, number of kernels per row, number of kernel rows per ear, ear height, ear weight with husk, ear weight without husk, plant height, 100 grain weight and ear length both at genotypic and phenotypic levels. Path analysis revealed that that ear weight with husk, number of kernel rows per ear, number of kernels per row and 100 grain weight showed highest direct effect on grain yield per plant. The direct effects of plant height, ear height and ear diameter were also considerable. Whereas the remaining characters exhibited negative direct effect on grain yield per plant.
Keywords
correlation, path analysis, Zea mays L.- Speed Breeding for Indian Agriculture:A Rapid Method for Development of New Crop Varieties
Authors
1 ICAR-Indian Institute of Soybean Research, Indore 452 001, IN
Source
Current Science, Vol 115, No 7 (2018), Pagination: 1241-1241Abstract
In agriculture, conventional breeding takes a longer time for the development of crop varieties with a minimum of 810 years of breeding cycles. In the context of breeding, rapid generation advancement of segregating populations towards reaching homozygosity will facilitate genetic gain for key traits and the rapid development of improved cultivars. Extra-terrestrial experiments by NASA, USA, to grow crop seeds in space inspired scientists in the University of Queensland and University of Sydney in Australia to develop a speed-breeding platform. Speed breeding uses an artificial environment with enhanced light duration to create longer daylight regimes to speed up the breeding cycles of photoinsensitive crops.References
- https://www.sciencedaily.com/releases/2018/01/180101144758.htm
- Watson, A. et al., Nature Plants, 2018; https://doi.org/10.1038/s41477-017-0083-8
- http://www.newsweek.com/growing-plants-speed-breeding-could-be-key-feed-worlds-exploding-population-767450
- https://www.jic.ac.uk/news-and-events/news/2018/01/speed-breeding/