Printing ISSN2708-857X
Online ISSN 2708-8588
Online ISSN 2708-8588
https://doi.org/10.36602/jmuas.2020.v01.02.33
Abstract... A field experiment was carried out on the bread wheat crops under the supplementary irrigation system at Misurata Research Station during the agricultural season 2018/2019. It included forty-three varieties and accessions. Thirty-five of them were obtained in a germplasm collection mission in different Libyan regions in the 2017/2018 season. For comparison, eight additional old and modern local varieties from the gene bank of bread wheat crops being worked on in the breeding program at Misurata Research Station were included. Varieties and accessions were randomly planted according to the Augmented designs. The FAO certified profiling system was used to characterize samples in both the field and laboratory. The results showed that the different varieties and accessions differed greatly in their morphological characteristics, growth habits, adaptability to the environmental conditions of the study area, and resistance of major diseases and pests recorded during the growing season. The results also indicated a large variation in some key plant characteristics such as days to heading, which ranged from 41 to 93 days. A significant amount of genetic diversity was found in the fields cultivated with wheat included in the collection mission in different regions of Libya. Some of these genotypes were identified as well-known local varieties such as Sidi Al-Masry, Al-Mukhtar, Bohot 208, and Sabha. Many other genotypes are unknown and need more research so that their genetic material can be used in future breeding programs.
https://doi.org/10.36602/jmuas.2020.v01.02.34
Abstract... The groundwater is considered as essential resources for Irrigation in Misurata city, this type of Irrigation suffered to some problems affecting their quality. The aim of this study was to evaluate, a physiochemical and biological parameters of wells water in Misurata Area during the period between November 2016 to December 2018. The area of study about 70 Km distance between Tawarq and Eldafina was divided into eight lines per appendicular to sea cost. Five water sample were taken for each line, in which the distance about 20 Km between each line.
The pH, SO4, HCO3, Ca, and D.O were within the permissible levels a according to FAO standard as well as, SAR, RSC, SSP were acceptable while EC, TDS, Cl-, K+ and Mg++, were higher than the standard, moreover, the temperature, was normal in all the samples. The heavy metals values of Fe, Mn, Zn and Cu were within the standard. In general, the results showed that high values of EC, TDS, Cl-, and Mg++ were the main reasons which lead to the deterioration of water irrigation. Therefore, the water was inadequate for agricultural purpose without any treatment such as desalination to reduce the salinity, Also the results of microbiologic analysis showed a contamination in most sample.
https://doi.org/10.36602/jmuas.2020.v01.02.35
Abstract... This laboratory study aims to investigate the effect of adding dry grinders of Cactus (Opuntia ficus-indica) and palm leaf bases (Rachis) and commercial soil enhancer (Compost) with different mixing ratios (2.5, 5.0, 7.5%, by weight) on improving hydraulic properties of sandy soil. Hydraulic properties included the water retention capacity, the saturated hydraulic conductivity, and the moisture content at tension values of 0.3, 1, 10 and 15 bar. These properties were estimated at the beginning of the experiment, and after six months, during which moisture and drying cycles had taken place. Through the obtained results, it was found that all additives improved the soil hydraulic properties, so that the values of the soil retention capacity and soil moisture content versus tension increased. On the other hand, all additives reduced the values of the hydraulic conductivity. The results also indicated lack significant effect of time (at the level of 5%). The different mixing ratios did not significantly affect the hydraulic conductivity (at the level of 5%). However, the results showed that the rachis grinders and the mixture consisting of rachis and cactus outperformed in hydraulic properties as compared with other treatments.
https://doi.org/10.36602/jmuas.2020.v01.02.36
Abstract... A field experiment was carried out in Bir Arjam area east of Suluq during the agricultural season 2018/2019 in order to know the effect of plant densities on the growth and yield of three cultivars of barley crop. The study was carried out with the design of split plot with four replicates in which cultivars (Rihan, Safet-65, Mebsher-4), were assigned to main plots and Seeding rates (70, 100, 130) kg seeds/ha to sub plots. The experimental unit area was 8 m2. All agricultural operations were carried out according to the regulations used in the region to produce the barley crop. Planting took place in mid-November. As for nitrogen fertilizer, it was added at a rate of 135 kg N/ha in two batches, half the amount when planting and the remaining half at the branching stage. The increase in plant density led to an increase in plant height, the higher density gave the highest height 75.78 cm, and the highest cereal yield was 3.156 t/ha. The highest protein content was 7.911%. While the cultivar (Safet-65) was given the highest number of spikes 308.8 spike/m2 and the highest weight of cereal yield was 3.289 tons/hectare, whereas the highest protein content in cereals for the variety Mebsher-4 was 8.156%.
https://doi.org/10.36602/jmuas.2020.v01.02.37
Abstract... A field experiment carried out on the barley yield of both six-row and two-row species (Hordum vulgar L), (Hordum distichumi) during the 2000-2001 agricultural season with dry rain-fed systems in the western mountain, and supplementary irrigation in the plain of Al-Jafara, to study the effect of species and cultivar mixing on the productivity of barley. The experiment included 10 treatments 4 pure varieties (for comparison), which are two varieties (ACSAD 176, MIMOON) of the six-row variety, (Ariel, and SINF 4) of the two-row variety in addition to 6 combinations of mixing them that were done in a ratio of 1: 1. According to the statistical design, complete randomized design (RCBD).\\r\\nThe results indicated that the average yield in the two sites was 1.30 tons / h, the average of the six-row varieties was 1.51 tons / h and the two-row variants were 1.52 tons / h, and that the mixing combinations were better than their pure components in the two environments. The six-row combinations are higher in the straw yield (hay) 2.750 tons / h and the one thousand kernel weight is 35 g. The overall average grain and straw yield and thousand kernel weight, respectively, was 1.735, 2.399 tons / h, 35 g. The best combination of species was for the six-row variety MIMOON and two-row variety Ariel. As for the one thousand kernel weight, all the mixtures shared by the SINF 4 variety with the six-row varieties are the best.\\r\\nIn dry conditions, the treatment of mixing (MIMOON + Ariel) was better in the yield and straw and the one thousand kernel weight (g), achieving a significant difference in yield compared to the general average for the same site, respectively: 1.66, 2.16 tons / h 39 g. Recall at the level of 5% there is no significant difference at Al-Jafara site for the all studied characteristics with a slight variation between them. The treatment of mixing between the same six-row variety (MIMOON + ACSAD 176) was distinguished from the rest of the combinations in the yield production 2.76 tons / h, and mixing the six-row with the two-row variety (ACSAD 176 + Aryl) is better in straw 3.16 tons/h, and six-row with the two-row variety (ACSAD 176+ SINF 4) are higher in the thousand kernel weight 36 g.\\r\\nBoth six-row and the two-row variety yielded better in supplementary irrigation conditions compared to dry conditions. Whereas the yield of the two environments of was equal 1.51 tons / h, and straw 2.25, 2.08 tons/h.\\r\\nThis study shows that the cultivation of barley mixtures represents a good advantage and may cause to increase productivity significantly especially in dry environments where the cultivation of barley is integrated with animal production. And the farmers cultivation of their blended barley seeds had no effect on the final yield.\\r\\n