Navara is a ricevariety endemic to Kerala, mainly seen in the northern parts. Thecultivation of this rice variety is recorded from 2500 years back.Navara is a unique grain plant in the Oryza group. Due to many reasons this species is in the verge of extinction. This is widely used in theAyurvedic system of medicine,especially in
|Panchakarma treatment. Navara as a special cereal, have the properties to rectify the basic ills affecting our curculatory,respiratory and the digestive systems. Navara is treated as a pious grain, has the properties to rectify various disorders of nervous system. It is also used in temples for ceremonies and for certain preparations of Navara,offerings are made to gods.|
Edaphic,hydrological and atmospheric factors play an important role inquality and yield of rice and medicinal property may vary with environmental conditions. This may be due to the variation in the biosynthesis of active principles behind the medicinal property.
Based on glume color differences, two types of Navara are recognized, the black and golden yellow glumed types
1. The Black Glumed
It is a black glumed variety and the seed color is red. This variety is highly resistant to drought conditions. It matures in about 60-90 daysand reaches about more than 1m height. This variety is generallyresistant to diseases. And it lodges. Black glumed variety, an ecotypeof Njavara rice is best for circulatory, respiratory as well asdigestive problems. It is also used in Panchakarma for paralysis. Thequalitative and quantitative medicinal properties vary with the habitatof this variety. This is preferred in Northern districts of Kerala. TheBiochemical parameters like total free amino acids is higher for theblack glumed. The black glumed plant type has a special capacity toabsorb Manganese (Mn) and translocate it to the grain.
2. Golden Yellow Glumed
Generallythis variety is grown in the second cropping season and it is a GoldenYellow glumed form. Grains are golden yellow and the seed color is red.The plant will reach about 1m heights. It is susceptible to drought. Itrequires 60-90 days to mature depending on the season and the land forcultivation, and on maturity the crop is susceptible to lodging anddiseases. The Biochemical parameters like total soluble sugars showedthat it was higher for the yellow glumed. The Golden yellow glumedplant was superior in yield but did not have the Mn preference. Thisvariety is characterized by good seed bearing, high threshability