Variability in Ethiopian coriander accessions for agronomic and quality traits

Abstract

Coriander (Coriandrum sativum L.) is an annual spice herb that belongs to the family of Umbelliferae/Apiaceae. Although Ethiopia is known as a primary diversity for coriander, the knowledge on nature and extent of variation of the indigenous germplasm is limited. Hence, to address the nature and extent of variability on agronomic and chemical traits, test trial was conducted at Kokate and Wondo Genet, Southern Ethiopia, using 49 accessions arranged in randomised complete block design in two replications during the main season of 2007/08. Data for 15 agronomic and quality traits were measured and statistically tested. In the combined analysis of variance over locations, accessions varied significantly in all the traits except for basal leaf number, plant height and fatty oil contents. The interaction between accessions and environment was significant for nine of the 15 traits. A range of seed yield (910-3099 kg ha -1 ), essential oil (0.25-0.85%) and fatty oil (11.11-16.53%) content was obtained. Overall, highest value of genetic coefficient of variation, broad sense heritability and genetic advance as percent of mean was obtained for longest basal leaf length, days to start 50% flowering, umbels number/plant, umbellets number/umbel, seed number/umbellets, seed number/plant, seed yield/ha and essential oil content.

Genetic variability and association among yield, yield related traits and oil content in Ethiopian garden cress (Lepidium sativum L.) genotypes

“…This indicates that environmental variance (σ 2 e) had its own contribution on the performance of the traits in addition to genotypic variance. In line with this Mengesha and Alemaw (2010) reported a higher value of genotypic coefficient of variability for most of the traits in Ethiopian coriander accessions except for days to maturity, 100-seed weight and plant height. Petros (2008) also reported a wide range of variability among niger (Guizotia abyssinica) particularly from those that were collected from Wello and Hararge for days to maturity, plant height, days to 50% flowering and days to flowering initiation.…”

Characterization of fennel (Foeniculum vulgare L.) Genotypes on the Basis of Seed Characteristics

“…Bhandari and Gupta (1993) reported thousand seed weight range of 5-22.1 g in coriander. Mengesha and Alemaw (2010) reported 9.8-12.8 g thousand seed weight range in coriander genotypes. Similarly, Cosge et al, (2009) reported 3.57-15.72 g range in thousand seed weight in sweet fennel.…”

Path Coefficient Analysis for Grain and Oil Yield in Coriander

“…Critical evaluation of available selections of improved types with high yield potential/ traits is of great value to the breeder for crop improvement (Moniruzzaman, 2013). Mengesha and Getinetalemaw (2010) evaluated some Ethiopian coriander genotypes and reported that identification and evaluation of elite or promising genotypes for yield and quality is an important crop improvement strategy. Giridhar (2009, 2011) opined that it is possible to realize 1500 kg ha -1 under rainfed conditions if a proper combination of genotypes and management are available to the farmers.…”