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|Ameena Siddiqui, Anu Rastogi, Sudhir Shukla, Nidhi Verma and Rawli Pandey|
|Linseed ( Linum usitatissimum L.), or flax, is a crop of interest from ancient times, as it is used both for fiber and oil. India is the fourth largest oilseed growing country in the world, and third largest producer of linseed. In India, approximately 2,009,100 tons of linseed is produced annually. Linseed has long been used as a cash crop and is mainly grown for its oil, which is continuously being utilized for various industrial purposes and also as a food supplement. A major alteration in demand of linseed oil and its other byproducts was observed in the last decade, which has elevated in recent times due to its increased demand as functional food and higher industrial uses. Its low productivity is ascribed to non-availability of superior cultivars to suit the diverse agroclimatic environment. The commercial importance of linseed ( Linum usitatissimum L.) has attracted breeders to increase its seed yield using various breeding approaches. Plant growth regulators (PGRs) have a significant role in enhancing yield and its related traits in linseed. In the present study, two plant growth hormones, auxin and gibberellic acid, were applied individually, as well as in combinations, in order to study their effect on yield and its components in Neelam, which is a high yielding variety of linseed. A comparative study was done under pot and field conditions. A combined dose of auxin (1.0 mg L -1 ) and gibberellin (200 mg L -1 ) is recommended for the enhancement of seed yield, whereas a 0.5 mg L -1 dose of auxin is recommended for the enhancement of vegetative growth. It was concluded that the plant growth regulators can be successfully employed to enhance the yield in this economically important oil seed crop.|
Ameena Siddiqui has completed her M.Sc. in Botany from Kanpur University, and presently pursuing Ph.D. in Dept. of Genetics and Plant Breeding, National Botanical Research Institute, Lucknow and registered for Ph.D. in Academy of CSIR.
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