Fractional Extraction, isolation and identification of biologically active compounds from Melaleuca leucadendron L. to control the vectors of dengue and filariasis

Abstract

Rice (Oryza sativa L.) is an important cereal crop of India. Rice is the main staple food of Chhattisgarh and the region predominates with diverse genotypes of rice under cultivation. The rice bowl of India is the Chhattisgarh state conserves the vast genetic diversity of rice in all the three climatic zones of the state. The present consumer liking is getting oriented towards the pleasant aromas of rice along with the good eat ability this shift in market demand improved the scope for rice breeding for aromatic purpose. The aromatic rice fetches high price in the market along with their cooking and milling quality. Keeping in mind a study was conducted for the comparative performance of elite lines under Initial varietal Trial – 1-Aromatic Short Grain trial for yield and quality aspects at Bilaspur District of Chhattisgarh on Kharif 2015. The present study was carried out on aromatic short grain rice genotypes tested under (IVT-1-ASG) consisting of total 26 entries along with five checks Shobhni, (NC), Local check (Vishnubhog), Ketekejoha (QC), Badshahbhog (ZC), Dubraj (QC)). The trial was conducted at Barrister Thakur Chhedilal College of Agriculture and Research Station, Sarkanda (IGKV Raipur), Bilaspur, Chhattisgarh in Randomized Block Design with two replications in Kharif 2015. The entries were tested in plot size of 11.40 sq/m with the nutrient application of 80 kg/ha Nitrogen, 50 kg/ha Phosphorous & 30 kg/ha potassium respectively. Thirty days old seedlings were transplanted by maintaining 15 cm plant-to-plant and 20cm row-to-row spacing. The findings revealed that in Kharif 2015 entries viz. ORJ-1142 (58.33 q/ha), SKL-022-40-32-11-43-43 (53.95 q/ha), HUR-155(51.32 q/ha) and HUR-156 (48.25 q/ha) are significantly superior over checks Shobhni (NC) (39.47 q/ha), Local check(Vishnubhog)(39.04 q/ha), Ketekejoha (QC)(27.63 q/ha), Badshahbhog (ZC)(27.63 q/ha) and Dubraj (QC) (18.83 q/ha). The significant superior entry ORJ-1142 (58.33 q/ha ), shown percentage increase for yield over the checks Shobhni (NC) (47.78 %),Local check(Vishnubhog)(39.41%), Ketekejoha (QC)(111%), Badshahbhog (ZC)(111%) and Dubraj (QC) (209%). The significant superior entry SKL-022-40-32-11-43-43 (53.95 q/ha),shown percentage increase for yield over the checks Shobhni (NC) (38.68 %), Local check(Vishnubhog)(38.39%), Ketekejoha (QC)(95.25%), Badshahbhog (ZC)(95.25%) and Dubraj (QC) (186%). The significant superior entry HUR-155(51.32 q/ha), shown percentage increase for yield over the checks Shobhni (NC) (30.02 %),Local check(Vishnubhog)(31.45%), Ketekejoha (QC)(85.74%), Badshahbhog (ZC)(85.74%) and Dubraj (QC) (172%). The significant superior entry HUR-156 (48.25 q/ha),shown percentage increase for yield over the checks Shobhni (NC) (22.24 %),Local check(Vishnubhog)(23.59%), Ketekejoha (QC)(74.62%), Badshahbhog (ZC)(74.62%) and Dubraj (QC) (156%). The GCV & PCV of characters indicates moderate for flowering, plant height, panicle length,filled grain, 1000 grain weight and plot yield, while maturity and tillers recorded the lowest GCV and PCV. The heritability estimates high range for flowering, maturity, plant height, panicle length, filled grain, 1000 grain weight and plot yield, while tillers recorded the lowest heritability.