Drought is a major environmental constraint affecting the growth and production of tef (Eragrostis tef). The selection of tef cultivars has been mainly empirical since little is known about how various cultivars respond to drought stress. Using cultivars that differ in drought tolerance, this study aimed to identify mechanisms of drought tolerance and the extent of variation within cultivars. Five representative cultivars of tef (Kaye Murri, Ada, Balami, Fesho, and Alba) were selected and cultured in 100-cm polyvinyl chloride tubes for 24 d. They were subsequently subjected to drought stress until the soil water potential reached À2.0 MPa. Photosynthetic rate, transpiration rate, leaf water potential, relative water content, osmotic adjustment (OA), total root length, and maximum root length (MRL) were measured during experimental periods. MRLs were 34.6% and 35% longer under drought conditions for Kaye Murri and Ada, respectively, compared with irrigated conditions, while the largest OA value of 1.38 MPa was observed for Fesho. Balami decreased relative growth rate with declining MRL and without OA. This study suggested that the ability to elongate MRL and to undergo OA contributes to better performance in drought tolerance for Kaye Murri, Ada, and Fesho compared with Balami and Alba.
Sugar cane ( Saccharum spp. hybrids) is a major crop for sugar and renewable bioenergy worldwide, grown in arid and semiarid regions. China, the world’s fourth-largest sugar producer after Brazil, India, and the European Union, all share ∼80% of the global production, and the remaining ∼20% of sugar comes from sugar beets, mostly grown in the temperate regions of the Northern Hemisphere, also used as a raw material in production of bioethanol for renewable energy. In view of carboxylation strategies, sugar cane qualifies as one of the best C 4 crop. It has dual CO 2 concentrating mechanisms located in its unique Krantz anatomy, having dimorphic chloroplasts located in mesophylls and bundle sheath cells for integrated operation of C 4 and C 3 carbon fixation cycles, regulated by enzymes to upgrade/sustain an ability for improved carbon assimilation to acquire an optimum carbon economy by producing enhanced plant biomass along with sugar yield under elevated temperature and strong irradiance with improved water-use efficiency. These superior intrinsic physiological carbon metabolisms encouraged us to reveal and recollect the facts for moving ahead with the molecular approaches to reveal the expression of proteogenomics linked with plant productivity under abiotic stress during its cultivation in specific agrizones globally.
An analysis of macro and micronutrients among 44 species of medicinal plants utilized traditionally to control diabetes and other diseases in Nuevo Leon, Mexico carried out at the experimental station of Facultad de Ciencias Forestales, Universidad Autonoma de Nuevo Leon, located in the municipality of Linares showed a large variability in the contents of macro and micronutrients and protein. K exhibited a wide range of variability among the selected medicinal plants 5.47−163.35 (mg g-1 dw), Mg from 0.1−8.64 (mg g-1 dw), P varied from 0.18−5.79 (mg g-1 dw), C from 25.54−51.66%, N from 1.36−6.25%, C/N from 5.34−31.05% and with respect to micronutrients Cu ranged from 4.17−33.88 (µg g-1 dw), Fe from 98.28−3977.55 (µg g-1 dw), Zn from 9.49−266.31 (µg g-1 dw). It is assessed that some species contain high amount of nutrients (macro and micronutrients thereby confirming their efficacy to combat various diseases and provide an opportunity to scientists working on medicinal plants to select the species with high nutrient contents. Medicinal plants, variability, macro and micronutrients, nutraceuticals
Sidama Zone is found in the Southern Nation Nationalities and People Regional State of Ethiopia. The zone has thirty-three districts. Wild edible plants are means of survival during war, political unrest, and food insecurity in this Zone. The objective of this research is to describe indigenous knowledge about wild edible plants based age, gender and education level in Hula district. Data on the use of wild edible plant were collected through semi structured interviews with key informants. The textual data were coded, quantified and analyzed with R software. A total of 50 wild edible plants belonging to 46 genera and 31 botanical families were reported in Hula district. Families Moraceae (12.5%), Rosaceae (12.5%), Rubiaceae (9.5%), Fabaceae (9.5%) and Solanaceae (9.5%) were found in the area. About 68% of the wild edible plants were trees. These wild edible plants were marketable. Further more some of the wild edible plants have medicinal values for human and livestock diseases. The popular food-category of wild edible plants is fruit eaten raw, and herbs eaten cooked as vegetables. There is significant difference (p<0.05) on the knowledge of wild edible plants between different sex and age groups. Social, economic and cultural factors contributed for consumption and avoidance of some edible wild plants. The poor communication system, on the other hand, has hindered the knowledge transfer from elders to youngsters and among different genders. The demand is growing for most of the wild plants regarded as local specialties, and reflect regional and cultural identity.
Barley is the fifth most important food crop in Ethiopia. The genetic relationship and population structure studies of barley are limited to gene bank collections. Therefore, this study fills a gap by investigating the selection, consumption, economic value, genetic diversity, and population structure of farm-collected barley from the Gumer district of the Gurage Zone, which has received little attention. The information on the use of barley in the study area was collected using semi-structured interviews and questionnaires. 124 households of 11 kebeles, the smallest community unit, were interviewed. Barley landraces collected were compared with those collected from Japan, the United States (USA), and other Ethiopian locations. Illumina iSelect (50K genotyping platform) was used to identify single nucleotide polymorphisms (SNP) (20,367). Thirty landraces were found in Gumer. Burdaenadenber had the highest on-farm Shannon index estimate (2.0), followed by Aselecha (1.97) and Enjefo (1.95). Aselecha and Fetazer had the highest (44%) and the lowest (29%) richness values, respectively. High and low Simpson index values were found in Aselecha (84%) and Wulbaragenateretero (79%), respectively. The neighbor-joining tree revealed that Gumer landraces formed a separate subcluster with a common ancestral node; a sister subcluster contained barley landraces from Japan. According to the population structure analysis, barley landraces from Gumer differed from Japan and the United States. The principal component analysis revealed that US barley was the most distant group from Gumer barley. The markers’ allele frequencies ranged from 0.10 to 0.50, with an average value of 0.28. The mean values of Nei’s gene diversity (0.38) and the polymorphic information content (0.30) indicated the presence of high genetic diversity in the samples. The clustering of accessions was not based on geographic origin. Significant genetic diversity calls for additional research and analysis of local barley diversity because the selection and use of barley in Ethiopia would have been affected by the preference of ethnic groups.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.