scholarly journals Selection of Yield-Related Traits for Wheat Breeding in Semi-Arid Region

2018 ◽  
Vol 20 (03) ◽  
pp. 569-574 ◽  
Author(s):  
Jiakun Yan
Keyword(s):  
Arid Region ◽  
Wheat Breeding ◽  
Semi Arid Region ◽  
Semi Arid ◽  
Selection Of

scholarly journals Effects of polymer cyclohexane application on lentil pod shatter in semi-arid region of Turkey

2018 ◽  
Vol 64 (No. 3) ◽  
pp. 136-142 ◽  
Author(s):  
Aslan Hasan ◽  
Gayberi Mahmut ◽  
Kahraman Abdullah
Keyword(s):  
Arid Region ◽  
High Yield ◽  
Semiarid Region ◽  
Application Time ◽  
Crucial Feature ◽  
Pod Shatter ◽  
Semi Arid Region ◽  
Semi Arid ◽  
Selection Of ◽  
Plot Experiment

Pod shattering in lentil which is vital plant of dry lands is a crucial feature for high yield. Selection of lentil variety is very important in order to reduce pod shatter. Some of lentil varieties are very productive; however, shattering loss decreases profitable yields. In this study, reduction of pod shatter in lentil varieties was investigated with application of polymer cyclohexane compounds. An experiment was conducted with split-split-plot experiment design with two lentil varieties (‘Firat-87’ and ‘Cagil’), two application time (podset and 15 days before harvest (DBH)) and three application doses (0, 0.5, 2 l·ha<sup>–1</sup>) as triplicate during two years. Effects of application time on podset were found statistically insignificant and application of 0.5 l·ha<sup>–1</sup> dose was found effective for 15 DBH application time. As a result, 0.5 pod shatter polymer cyclohexane and 15 DBH was found as optimum doses and application time, respectively in order to reduce pod shatter loss by nearly 1% for semiarid region of Turkey.

scholarly journals Selection of upland cotton for the Brazilian semi-arid region under supplementary irrigation

2019 ◽  
Vol 19 (2) ◽  
pp. 185-192
Author(s):  
Jarbas Florentino de Carvalho ◽  
José Jaime Vasconcelos Cavalcanti ◽  
Francisco José Correia Farias ◽  
Jean Pierre Cordeiro Ramos ◽  
Damião Raniere Queiroz ◽  
...  
Keyword(s):  
Arid Region ◽  
Upland Cotton ◽  
Supplementary Irrigation ◽  
Semi Arid Region ◽  
Semi Arid ◽  
Selection Of

scholarly journals PSI-9 Molecular characterization of Berganês sheep, a locally adapted ecotype from Brazilian semi-arid region

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 288-289
Author(s):  
Riani Ananda Nunes Soares ◽  
Joel Fonseca Nogueira ◽  
João Bandeira de Moura Neto ◽  
Gisele Veneroni Gouveia ◽  
Maria Norma Ribeiro ◽  
...  
Keyword(s):  
Arid Region ◽  
Coat Color ◽  
Principal Component ◽  
Ovis Aries ◽  
Selection Processes ◽  
Head Morphology ◽  
Semi Arid Region ◽  
Efficiency Of Selection ◽  
Semi Arid ◽  
Selection Of

Abstract The Ovis aries species is phenotypically diverse and it is bred around the world for meat, milk and wool production. In the 1980s, small farmers in the semi-arid region of Pernambuco, Brazil, initiated the introgression of genes from Santa Inês and Bergamácia breeds in their local sheep of undefined breed, and the selection of individuals in an unstructured form, giving rise to an ecotype with unique characteristics called Berganês. The aim of this study was to perform genetic structure analysis of the Berganês ecotype population on farms in the state of Pernambuco using the Illumina® BeadChip OvineSNP50 high density chip as a way of increasing knowledge about the ecotype. Animals from seven farms were genotyped, totaling 96 animals (17 males and 79 females). Of the 54,241 Single Nucleotide Polymorphism (SNPs) found, we elected the ones with GenCall Score &gt; 0.5, Hardy-Weinberg equilibrium (significance at 0.01) and lower allele frequency (MAF) &gt; 0.2. In addition, only SNPs located on the autosomal chromosomes were maintained, according to version 4.0 of the sheep genome, with 39,250 SNPs being selected. The observed and expected mean heterozygosity values were, respectively, 0.37159 and 0.37943. The F statistics found were: FIS = 0.02622, FST = 0 and FIT = 0.02394. Most of the variability found (97.61%), which was estimated by AMOVA, is uniformly distributed within the herds and the Principal Component Analysis (PCA) did not allow the visual identification of a substructure considering herds, sex or phenotypic characteristics (coat color, ear size and insertion, and head morphology). Thus, the genetic variability presented in the animals of the Berganês ecotype is distributed homogeneously among the herds analyzed. Therefore, the genetic characterization presented here represents a key point in the creation of conservation plans and breeding programs, improving the efficiency of selection processes and the selection of breeders.

scholarly journals Modeling of Cowpea (Vigna unguiculata) Yield and Control Insecticide Exposure in a Semi-Arid Region

Plants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1074
Author(s):  
Messias de Carvalho ◽  
Wiktor Halecki
Keyword(s):  
Vigna Unguiculata ◽  
Arid Region ◽  
Germination Rate ◽  
Insecticide Exposure ◽  
Secondary Factor ◽  
Semi Arid Region ◽  
And Control ◽  
Semi Arid ◽  
Selection Of ◽  
Main Factor

The aim of this study was to evaluate the adaptability of different genotypes of cowpea (Vigna unguiculata L. Walp.) in the edaphoclimatic conditions of a semi-arid region. In the experimental design, a completely randomized split-plot (2 × 8), with 3 repetitions (blocks) was used. The experiment comprised 7 new genotypes and 1 local genotype as the first main factor and application of insecticide as a secondary factor. Two-factor analysis of variance (two-way ANOVA) determined the differences between the treated and untreated plots. The results obtained in the experiment showed that the introduced genotypes V3 (IT07K-181-55), V7 (H4), and V5 (IT97K-556-4M) adapted well to the edaphoclimatic conditions of the study area and their yields were respectively 1019, 1015, and 841 kg/ha of grains in treated plots and 278, 517 and 383 kg/ha in untreated plots. Multivariate analysis revealed that the most important parameter was the germination rate. Finally, the best yield was obtained with the genotype V3 (IT07K-181-55), subjected to the use of insecticide, and with the V7 (H4) genotype in untreated plants. The findings presented in this research should be useful in crop system agricultural programs, particularly in the terms of selection of cultivating systems suitable for high-yielding cowpea.

scholarly journals Wheat (Triticum aestivum) adaptability evaluation in a semi-arid region of Central Morocco using APSIM model

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Hamza Briak ◽  
Fassil Kebede
Keyword(s):  
Best Management Practices ◽  
Arid Region ◽  
Management Practices ◽  
Wheat Yield ◽  
Sowing Date ◽  
Future Scenarios ◽  
Climate Data ◽  
Semi Arid Region ◽  
Semi Arid ◽  
Selection Of

AbstractIn this study, we evaluated the suitability of semi-arid region of Central Morocco for wheat production using Agricultural Production Systems sIMulator (APSIM) considering weather, soil properties and crop management production factors. Model calibration was carried out using data collected from field trials. A quantitative statistics, i.e., root mean square error (RMSE), Nash–Sutcliffe efficiency (NSE), and index of agreement (d) were used in model performance evaluation. Furthermore, series of simulations were performed to simulate the future scenarios of wheat productivity based on climate projection; the optimum sowing date under water deficit condition and selection of appropriate wheat varieties. The study showed that the performance of the model was fairly accurate as judged by having RMSE = 0.13, NSE = 0.95, and d = 0.98. The realization of future climate data projection and their integration into the APSIM model allowed us to obtain future scenarios of wheat yield that vary between 0 and 2.33 t/ha throughout the study period. The simulated result confirmed that the yield obtained from plots seeded between 25 October and 25 November was higher than that of sown until 05 January. From the several varieties tested, Hartog, Sunstate, Wollaroi, Batten and Sapphire were yielded comparatively higher than the locale variety Marzak. In conclusion, APSIM-Wheat model could be used as a promising tool to identify the best management practices such as determining the sowing date and selection of crop variety based on the length of the crop cycle for adapting and mitigating climate change.

The Molecular Characterization and Biological Assessment of the Leaves Extracts of Loofah Reveal their Nutraceutical Potential

2020 ◽  
Vol 11 ◽  
Author(s):  
Takoua Ben Hlel ◽  
Feten Belhadj ◽  
Fatih Gül ◽  
Muhammed Altun ◽  
Ayşe Şahin Yağlıoğlu ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Phenolic Compounds ◽  
Hela Cell ◽  
Arid Region ◽  
Biological Properties ◽  
Biological Assessment ◽  
Omega 3 ◽  
Hela Cell Lines ◽  
Semi Arid Region ◽  
Semi Arid

Background:: Luffa cylindrica is a plant that is widely distributed in Africa and Asia and it can be grown in regions with tropical or subtropical climates. Few patents dealt with Loofah biological properties, including some functional foods formulated from its leaves. Objective:: This study aimed to structurally and functionally characterize the bioactive compounds of L. cylindrica leaves grown in two different environments. Methods:: The extracts of L. cylindrica leaves collected from two Tunisian locations: Essouasi (LE), a semi-arid region and Medenine (LM) an arid region, were investigated for their phenolic compounds and fatty acids using HPLC/TOF-MS and GCMS techniques respectively. Furthermore, the antioxidant capacity was evaluated with DPPH, Chelating effect, Hydroxyl radical and Superoxide anion scavenging activities while the anticancer activity against HeLa cell lines was assessed using xCELLigence real time cell analyzer and lactate dehydrogenase cytotoxicity assay. Results:: The antiproliferative capacity of both extracts was time and dose-dependent with LE presenting the lowest HeLa cell index (CI = 0.035 ± 0.018, 250 μg/ml). LE also showed the best cytotoxic capacity (56.49 ± 0.8%) and antioxidant potential (IC50 = 54.41 ± 1.12 μg/ml for DPPH and 12.12 ± 0.07 μg/ml for chelating effet). 14 phenolic compounds were detected in LE with ferulic acid being the major compound (5128.5 ± 4.09 μg Phenols/g) while LM had only 6 phenolics. GCMS analysis showed the presence of omega-3 fatty acids in LE. Conclusions:: Our findings suggest that L. cylindrica leaves, especially when collected from semi-arid regions, are promising for formulating nutraceuticals of interest.

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