IJFANS International Journal of Food and Nutritional Sciences

ISSN PRINT 2319 1775 Online 2320-7876

EFFECT OF SALICYLIC ACID (SA) ON DORMANT COLEUS TUBER AND ITS BIOCHEMICAL ANALAYSIS BEFORE AND AFTER THE TUBER GERMINATION

Main Article Content

Dr.Suresh Bharali, Narayan Sarkar, Dipak Konwar, Dr. Gunajit kalita

Abstract

The plant Coleus parviflorus is an annual herb with opposite dentate or serrate and dark green leaves.The stems are quadrangular and light green in colour. Coleus attains a height of 30-60 cm and produces clusters of dark brown root tubers.Flowers are light pink colour and the inflorescence is verticillaster. Coleus tubers are two types , viz- Those having small sized tubers with good flavour and others with large sized tubers and higher yield.An improved variety of Coleus is Sree –Dhara, which yields about 20-25 tones/ha over a period of 6 month. Coleus tuber shows periods of dormancy from september –October to March –April.If this dormancy can be broken by treatment with plant growth regulators then it can be cultivated throughout the year and used as vegetables for all in North –East India. In this study,Coleus tubers were treated with different concentration of Salicylic acid(SA) solution and germination(No.of sprouts),Length of seedlings, number of leaves and Biochemical content like sugar, starch and protein were observed in both SA treated and controlled tubers.The result showed that maximun number of sprouts in SA treated tubers ,i.e, SA break dormancy of tubers. Again length of seedlings, no.of leaves were more in SA treated tubers than that of controlled one. Sugar content and protein content were also more in SA treated tubers.

Article Details