The present study was performed to explore genetic and chemotypic variability among five Ocimum species. Genotypes were evaluated from pooled data over three locations for two consecutive years (2007-2009). High genotypic coefficient variation and phenotypic coefficient variation was observed for leaf area (63.55 and 63.80, respectevely), essential oil yield (40.37 and 41.0, respectevely) and leaf width (33.91 and 39.29, respectevely). Maximum heritability estimate in broad sence was observed for leaf area (99.20%) and leaf length (98.79%) and essential oil (98.36%). High genetic advance over mean was observed for the essential oil yield (80.59%), leaf width (74.43%), leaf length (69%) and essential oil content (64.71%). In addition, path coefficient analysis showed maximum positive direct effects of plant canopy (4.21), leaf width (3.8), followed by essential oil (2.49%) and fresh herb yield (0.95). The essential oils of Ocimum species were grouped in four chemical groups of compounds. The accessions of O. tenuiflorum, O. basilicum and O. gratissimum were found to be rich with phenylpropanoids.The results clearly showed variation in important economic traits can facilitate selection for further improvement inOcimum genotypes. پرونده مقاله

The present investigation was carried out to determine the stability over years among seventeen genetic stocks of turmeric assembled from different places in India for high and stable rhizomes yield. The differences among genetic stocks, years and g × e interactions were highly significant for rhizome yield. The stable genetic stocks were selected on the basis of stability parameters, high mean, regression coefficient (bi) around unity and mean square deviations from regression (s2di) near zero. The environmental indices for rhizome yield also indicated clear effects over the year’s i.e. 1.85 in year I followed by 9.95 in years II; -6.31 in year III and -5.29 in the year IV. The largest AMMI1 gain of the grand mean occurs over years for picking stable genotypes/clones. Further partitioning of genotypes on the basis of AMMI and Eberhart and Russell, (1966) model, the clones/genotypes T-8, T-12 and T-13 were highly stable; T-11 and T-14 adapted to the average stable in low yielding environment/year and T-9 ant T-17 genotypes/clones with below average stable suitable for high yielding environment were recommended for commercialization. پرونده مقاله

Plant secondary metabolites have innumerable benefits in regard to human health. From the available 106 divergent lines of five Plantago species, a screening program was conducted to explore putative lines having best resources of aucubin and β-carotene. HPLC results indicated that seeds of selection LP3 of P. ovata contained highest (9.53%) and P. arenaria contained least (7.79%) β-carotene. Investigation was also conducted to assess the genetic variability, correlations and character contribution of β-carotene and aucubin content with other traits towards seed yield in a set of ten selected accessions in relation to seven traits in Plantago species. Results indicated that none of the accessions of any other species apart from P. lanceolata contained aucubin. PL-61 accession was detected to have maximum concentration (0.23%) of aucubin while the lowest (0.02%) was detected in PL-66. This opened the possibilities for nutritional value addition of β-carotene in seeds of isabgol. پرونده مقاله

Seventeen genetic stocks of Curcuma longa L. were evaluated for nature and amount of genetic variability, associations, and path analysis for six economic traits. GCV and PCV were largest for fresh rhizome yield, Para-cymene-8-ol and 1, 8 cineole. Path coefficient study showed the largest direct contribution to rhizome yield was plant height while other traits were negative; but their direct contribution via oil content in leaf and rhizome was large. All traits expressed medium to high heritability (^h2(BS), low to medium genetic advance and positive correlations. Correlation coefficients between traits expressed that rhizome oil content, 1, 8 cineole were highly significant and positively correlated with plant height and 1, 8 cineole at genotypic and phenotypic level, respectively. Based on mean performance AMT3, Tur1UNK, ST-3(3) were best for leaf oil, rhizome oil and fresh rhizome yield. These accessions may be exploited for commercial production/exploitation. پرونده مقاله

This study aims to evaluate the effects of season and spacing on growth patterns and seed yield performance of muskdana by estimating fixable and non-fixable components of genetic variances for diverse traits of economic significance and identification of highly divergent clusters of genotypes to exploit them in hybridization program. Radical scavenging activity of oil from muskdana seeds was also checked. The field experiment was conducted in two seasons , namely January to June (season I) and July to December (season II) with five spacing levels treatment 1, 2, 3, 4, and CIMAP of Abelmoschus moschatus. From the obtained results, it can be concluded that genotypes CIM-AM 22, CIM-AM 40, and CIM-AM 49 of A. moschatus showed greater potential in terms of yield. A. moschatus oil has also effective and powerful reducing power and exhibits significant radical scavenging activity which is comparable with standard antioxidants such as ascorbic acid, BHA, and BHT. پرونده مقاله

Genotype x environment interaction and stability were analyzed through Eberhart and Russell model among seventeen accessions/germplasms of turmeric (Curcuma longa L.) during three environments/years. For rhizome yield the mean performance over three environments showed that yield ranged from 241.41 q/ha (CIMCH14127) to 579.67 q/ha (CIMCH14229). Six genotypes namely CIMCH14107, CIMCH14171, CIMCH14165, CIMCH14130, CIMCH14208 and CIMCH14229 had significantly higher mean for rhizome yield as compared to the general mean. Among seventeen genotypes, five genotypes had more than 1 regression coefficient, while eight genotypes had less than 1 regression coefficient and four genotypes showed bi=1. For CIMCH14101, CIMCH14144, CIMCH14159, CIMCH14190, CIMCH14152, CIMCH14123 and CIMCH14164 S2di was significant. The stability parameters for rhizome yield revealed that CIMCH14171 and CIMCH14229 were stable for all environments. Three genotypes viz., CIMCH14107, CIMCH14130 and CIMCH14208 genotypes were suitable for unfavorable environments having mean values, bi پرونده مقاله