Registrations of Cultivars (original) (raw)
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African Journal of Agricultural Research, 2020
Ascochyta blight caused by Ascochyta lentis is a fungal disease with a major importance in Ethiopia. It has the potential to cause appreciable reduction in yield. The present study was conducted to identify the sources of resistance in lentil to ascochyta blight in 2018 main cropping season in hot spot area in AlemTena research station. The total of 148 accessions were received from Ethiopian Biodiversity Institute were grown in augmented design without replications that only checks were replicated. The spacing was 20 cm between rows with 4m row length. The disease severity was recorded three times at different growth stage every seven to ten days intervals using (1-9) point disease ratings scale. There were high variations in resistance among the tested lines ranged from resistant to highly susceptible. It compares that about 22 were resistant, 58 were moderately resistant and other become susceptible to highly susceptible which is 56 and 11 lines, respectively. In comparison, there are promising lines to use as source of parental materials in which most of the released cultivars lacking the resistance. A wide range of variation to ascochyta blight disease reaction was observed among lentil genotypes. More resistance resources need to be identified to back up breeding programs.
Identification of Lentil Genotypes for Resistance to Ascochyta Blight (AscochytaLentis)
Journal of Plant Pathology & Microbiology, 2021
Ascochyta blight, caused by Ascochyta lentis, is one of the most globally important diseases of lentil. The disease is seed and air borne causing huge loss and development of ascochyta blight resistant varieties is most effective means of controlling this disease. The diseases of lentil not only reduce yield but also deteriorate seed quality. To date, no highly resistant sources of ascochyta blight in lentil have not been reported from the Ethiopian lentil breeding programme. Past efforts have been directed towards developing improved varieties with resistance to one or the other biotic stress, improving the seed size, color of seed cotyledon, market quality and shortening the crop duration to fit lentil in various cropping systems. And also breeding for host resistance has been suggested as an efficient means and sustainable to control this disease. In present study, total of sixty five lentil entries received from Austria, is one of our partners, were evaluated at Alemtena and Minjar naturally hot spot field condition during the year 2018-19 and 2019-20 to identify sources of genetic resistant against ascochyta blight disease incited by the fungus Ascochyta lentis. These entries were assigned in augmented design with two replications that of checks were replicated after every eight test entries for the comparison purpose. The spacing was 20 cm between rows with 4m row length. The disease severity was recorded three times at different growth stage every 21 days intervals using (1-9) point disease ratings scale. High variations were observed in resistance level among the tested genotypes ranged from resistant to highly susceptible. Based on the reactions, 7 genotypes were resistant, 15 were moderately resistant and other become susceptible to highly susceptible which is 10 and 30 lines, respectively at Alem Tena. In another hand, 1 was resistant, eight were moderately resistant, twelve were susceptible and forty one genotypes were highly susceptible at Minjar. The promising genotypes would be used as a source of parental materials in the next breeding stages. Ethiopia still has different opportunities for enhancing the productivity of lentil including varied agro ecology, diversity of grain legumes, population and urbanization trends, and increased demand for animal feed and processed foods. Identification of more sources of resistance genes, good characterization of the host-pathogen system, and identification of molecular markers tightly linked to resistance genes are suggested as the key areas for future study.
Registration of ‘Krib’ new lentil variety in Tunisia
Genetic Resources and Crop Evolution
In Tunisia, lentil (Lens culinaris subsp. culinaris Medik.) is cultivated in arid and semi-arid areas. Terminal drought and heat stresses during the end of cycle causes significant yield losses. Selection of short cycle varieties could be the best option to escape the effect of pre cited abiotic factors. ‘krib’ was developed using both modified pedigree and bulk methods by INRAT in collaboration with ICARDA. It’s a selection from an advanced F9 line, FLIP2012 196L, which was derived from a cross of ILL590 (early-maturing genotype) with ILL8113 (drought tolerant). During the three consecutive cropping seasons (2014–2017), the increase in yield of ‘krib’ above that of the local checks was about 13 and 15% for ‘kef’ and ‘Boulifa’, respectively. ‘Krib’ is an early-flowering (on average ~ 93 d) and early-maturing (on average ~ 138 d) variety. It's therefore, the earliest variety among the previously released varieties. Its dehulled seed has a protein content of 26.8% which was above ...
Collection and agro morphological characterization of Algerian accessions of lentil (Lens culinaris)
Biodiversitas Journal of Biological Diversity
Gaad D, Laouar M, Gaboun F, Abdelguerfi A. 2018. Collection and agro morphological characterization of Algerian accessions of lentil (Lens culinaris). Biodiversitas 19: 183-193. Lentil is one of the important pulse crops in Algeria. The narrow genetic base of local cultivars and the disappearance of many local accessions contribute to the loss of lentil biodiversity. Therefore, collection, characterization and preservation of existing local accessions of lentils are important. Lentil accessions were collected across different agro-ecological zones of Algeria. From 10 regions (Departments), 15 villages were surveyed and 30 accessions were collected. Eighteen local accessions and 26 references collection have been used for agro morphological evaluation. The assessment was performed in two locations, sub-humid and semi-arid conditions, based on 12 quantitative characters. The result of variance analysis shows a significant effect of the interaction genotype x location for six quantitat...
Collection and ethnobotanical investigation of Lentil (Lens culinaris Medik.) in Algeria
Recent Research in Science and Technology, 1970
This study aims to make an inventory of the existing diversity and establish a representative collection of the diversity of lentil crop in Algeria. Surveys and collection of lentil accessions were conducted in different agro-ecological zones of Algeria In 2011. From ten regions (Departments), fifteen villages were surveyed and 30 lentil accessions were collected. The present study was carried out to survey, identify and document the uses of lentil accessions collected. The information on ethnobotanical uses was collected through semi-structured questionnaires with local villagers, elders and those people having knowledge associated with the production and utilization of lentil (Lens culinaris).The study revealed that among the interviewed farmers, 64% were males while 36% were females. The commonest cropping system found was the cultivation of lentil alone (95.5% of producers) and associated with grass pea (2.5%). Regarding the plant part used, two main parts are used by the farmer...
Evaluation of wild species of lentil for agro-morphological traits
Legume Research - An International Journal, 2014
Most of the existing varieties of lentil (Lens culinaris ssp. culinaris) have been developed mainly through intraspecific hybridization and pureline selection leading to a narrow genetic base in cultivated populations. This makes them vulnerable to a number of biotic and abiotic stresses besides reducing their genetic potential due to lesser hidden variability. Distant hybridization involving wild accessions increases genetic variability and also helps in introgression of desirable genes rendering cultivated species more usable. Keeping this in view, wild accessions of lentil procured from ICARDA, Aleppo, Syria were established and evaluated under local conditions at IIPR, Kanpur. These comprised 88 accessions from Lens nigricans, L. culinaris ssp. odemensis, L. culinaris ssp. orientalis, L. culinaris ssp. tomentosus, L. ervoides, L. lamottei and unknown Lens spp. The results showed significant genetic variation among the wild accessions for all characters except cotyledon colour. PCA analysis of the morphological data resulted in clustering of 88 wild accessions into three groups and distinct position of each genotype was observed within each group. The first three most informative components in PCA analysis individually accounted for 89.35, 4.38 and 2.3% of total variation, respectively and collectively these explained about 95% of the total variability. While more traits and multilocation data need to be considered for getting more reliable results, in general L. ervoides was observed to possess useful traits like plant height, internode length and pods/cluster and therefore could be utilized for genetic improvement of cultivated lentil.