April-June 2021


Response of Egyptian cotton plants to the treatment with Azotobactr, Azospirillum and some Bacillus Spp. and their effect on yield and quality under calcareous soil

Ahmed H.S.A., Mona H. A. Hussein and Deshish EL-D. EL-D.

ABSTRACT: Two field experiments were conducted at Nubariya Agriculture Research Station, Cotton Research Institute, Agricultural Research Center during two seasons 2018 and 2019. These experiments were conducted to study the probability of using clean agriculture to produce organic cotton. A randomized complete block design with 4 replicates was used. The Egyptian cotton varieties i.e. Giza 86, Giza 94, Giza 95, Giza 97, Giza 92 and Giza 96. Cotton seeds were received from Cotton research institute, Egypt. Microorganisms i.e. Bacillus bolymixa, Bacillus megterm, Bacillus circulans, Azotobactr, Azospirillum and Mix fertilizer was provided by the Department of Microbiology, Institute of Soil and Water Research, Agricultural Research Centre, Giza, Egypt. The most important findings are as follows: the combined treatment (half dose of both the mineral and some bio-fertilizers) produced height values for yield, yield components, and fiber traits in all varieties, with one exception in the seed index parameter. Furthermore, the obtained results demonstrated that the use of bio- fertilization with all varieties was highly significant. The obtained results for the effect of bio-fertilization on cotton varieties yield and yield component parameters stated that using bio-fertilizer Azospirillum, Bacillus bolymixa, and a combination of all Bio-fertilizer gave the highest values for yield and yield component traits. In any case , all varieties of Egyptian cotton under study effected by using Bio-fertilizer the results cleared that highly significant mean performances for all the fiber traits by compared by control treatment and the highest mean was recorded by used Azotobacter, Azospirillum, Bacillus bolymixa and Mix of all bio- fertilizer. From the all results in conclusion we possible use bio-fertilization for Egyptian cotton varieties to using clean fertilizer and decrease the mineral fertilizer and decrease the pollution for soil and

[ FULL TEXT PDF 426-437 ] DOI: 10.36632/mejar/2021.10.2.28


Effect of Water Stress on Some Egyptian Cotton Genotypes

Badr S.S.M., H.A.E. Elganayny and El-D. El-D. Deshish

ABSTRACT: Two field experiments were carried out in Sakha Agricultural Research Station, at Kafr El-Sheikh Governorate, Egypt during the 2019 and 2020 seasons to study the effect of water stress on some Egyptian cotton genotypes and its effect on growth and yield and yield components. The experimental design was a split plot with four replications. The main plots involved two irrigation intervals (14 and 28 days) and the subplots included five Egyptian cotton genotypes (Giza 86, Giza 94, Giza 97, Giza 92 and Giza 96). The combined analysis between years was done. Obtained results revealed that: the significant seasonal effect was detected in boll weight, lint %, seed and lint cotton yields/ fed. where the second season gave the high values of seed and lint cotton yields/ fed. Irrigation intervals significantly affected plant height, number of fruiting branches/plant, boll weight, number of open bolls /plant, seed index, seed and lint cotton yields/ fed. in both seasons. Prolonging irrigation interval to 28 days significantly decreased the number of open bolls /plants, boll weight, seed index, seed and lint cotton yields/ fed. Egyptian cotton genotypes had a significant effect on growth characters and yield and yield components, where the Giza 94 genotype gave the high values of growth characters, while the Giza 97 genotype gave the high values of yield and yield components. The interaction between years and irrigation intervals had significant effects on plant height, boll weight, no. of fruiting branches/plant, no. of open bolls /plant and seed and lint cotton yields/fed., where irrigation every 14 days in the second season gave the highest values of in these properties. The interaction between irrigation interval and Egyptian cotton genotypes had a significant effect on growth characters and yield and yield components. Well watered plants every 14 days to Giza 97 gave the high values of no. of open bolls/ plant and seed and lint cotton yields/fed. The interaction between seasons and genotypes and the interaction among years, irrigation intervals and genotypes did not significantly affect growth characters, yield and yield components. The study concluded that the proper irrigation interval was 14 days to assure a high yield of different Egyptian cotton genotypes and avoid adverse effects during the seasons.

[ FULL TEXT PDF 438-446 ] DOI: 10.36632/mejar/2021.10.2.29


Determination of Antibacterial and Antioxidant Potential of Some Medicinal Plants

Ahmed A. Aly and Inas M. Khamis

ABSTRACT: Myrtaceae family is one of the most famous plant families; we chose three plants which are Syzygium aromaticum, Myrtus communis and Psidium guajava, to clarify antioxidant and antibacterial activities. The results showed that, the highest percentage of total phenols and tannins in Syzygium aromaticum buds extract, and followed by Myrtus communis leaf extract and finally Psidium guajava leaf extract. The percentages of total flavonoids reached their maximum values in Syzygium aromaticum extract (10.4 %), followed by Psidium guajava leaves (5.5 %), and decreased to the lowest concentration in Myrtus communis leaves (4. 1%). The antioxidant study revealed that, Syzygium aromaticum, Myrtus communi and Psidium guajava plants have high antioxidant activity due to their ability to capture free radicals. The antimicrobial study demonstrated that, the three plant extract have antimicrobial effects against many pathogenic bacterial strains. Therefore, it is recommended to use the three plants under studied as antioxidant and antibacterial.

[ FULL TEXT PDF 447-452 ] DOI: 10.36632/mejar/2021.10.2.30


The Green Food Value Chain Development Approach: Key Lessons Learnt

Martin Hilmi

ABSTRACT: The green food value chain development (GFVCD) approach has its foundations in the green, circular and low-carbon economies as well as within green growth. It was developed, mainly, with a ‘bottom- up’ approach focused on realism. The thrust of the process was and is to partner with bottom of the pyramid (BOP)/subsistence marketplaces (SM) stakeholders, for example agri-food value chain actors, and critically learn from stakeholders and their contexts to attempt to identify and better understand how, within agri-food value chains and markets, environmental challenges and impacts were tendered with, via, frugal, green and grass root innovations. Over the period 2012 to 2020, in developing the GFVCD approach and also in implementing such an approach, data and information, knowledge, know- how and experiences were gained from 23 countries. Within this background, the aim of this research was to ascertain, identify, analyze and diagnose key lessons learnt in developing and implementing the GFVCD approach over the past nine years. The research was based on a review of sources of data and information, both secondary and primary related directly and indirectly to the GFVCD approach. The research was further enhanced by an online meeting with subject matter specialists held with the main aim of reviewing, discussing and attempting to agree upon the key lessons learnt over the past nine years in terms of developing and implementing the GFVCD approach. The results of the research and the online meeting found 14 key lessons learnt in terms of developing and implementing the GFVCD approach. All the 14 key lessons were found to carry all the same ‘weight’ in terms of relevance to the GFVCD approach as well as being all interconnected. From the stocktaking, the 14 key lessons learnt can be considered as a set of ‘best practices’ for the GFVCD approach. These 14 reference points on‘best practice’ can be important and can be instrumental in not only developing the GFVCD approach further, but also and importantly in further implementing the approach at field level. The findings from this research indicate that effectively the GFVCD approach, both in terms of developing further and implementing such an approach, is dynamic and consequently needs to be considered as a flexible, adaptable and morphing approach that can be assimilated within the high diversity of BOP/SM contexts.

[ FULL TEXT PDF 453-471 ] DOI: 10.36632/mejar/2021.10.2.31


Effect of Sowing Dates on Growth, Development and Pod Production of Snap Been (Phaseouls Vulgaris L.) Varieties during Summer Season

Magda A. F. Shalaby and Sohair K. Ibrahim

ABSTRACT: Two field experiments were carried out in the experimental farm of the faculty of Agriculture, Moshtohor, Benha University during two successive summer season; to study the effect of sowing dates March 1 st referred as early sowing date, April 1 st as medium sowing date and May 1 st as late sowing date. Four cultivars were tested in the experiment namely Paulista, Samantha, Narina and Bronco. The data for vegetative growth and chemical composition was taken at 50 days from sowing. Flower behavior as well as quantity and quality of green pods were determined. 1- All vegetative aspects i.e plant length, number of leaves and branches per plant as well as fresh weight of shoot were significantly increased with early sowing on the 1 st of March. Cv. Bronco reflected the highest value of these vegetative criteria. On the other hand, the dry matter percentage of the shoots was increased with delaying seed sowing from March 1 st to May 1 st . 2- Early sowing (1 st March) led to significant increases in all assayed photosynthetic pigments (chl. (a), (b) and carotenoids) as well as mineral constituent (N, P, K). Cv. Paulisa followed by cv. Bronco reflected the highest values. Early sowing (1 st march) exhibited the maximum increase in reducing, non-reducing and total sugars as well as nucleic acids (RNA& DNA). Cv. Paulista reflected the highest level for all these parameters. 3- Flowering behavior showed that early sowing date (1 st March) exhibited the highest values of both number of flowers, pods per plant and fruit set percentage. Plants of cv. Bronco Possessed the superiorly in this respect followed by cv. Paulista. 4- Sowing snap bean seed in early planting (1 st March) significantly increased green pod yield per plant as well as feddan followed by cv. Bronco, cv. Paulista then cv. Narina. Meanwhile cv. Samantha produced the lowest yield. Worth to be mentioning that cv. Paulista improved pod quality in all measured physical and chemical parameters of pods. It can be concluded that cv. Bronco can be recommended on the early sowing date (1 st March) to obtain high green pod yield. However, for better quality of pods cv. Paulista at early sowing (1 st March) could be recommended.

[ FULL TEXT PDF 472-482 ] DOI: 10.36632/mejar/2021.10.2.32


Interaction effect of N fertilizer with foliar application of potassium on the growth, yield and yield attributes of Chinese garlic plant (Allium sativum L. ).

Shafeek M.R., Asmaa R. Mahmoud, Y.I. Helmy, Nadia M. Omar and Camilia Y.El- Dewiny

ABSTRACT: A field experiment was carried out on Chinese garlic (Allium sativum L.) with three replications and nine treatments in the experimental agriculture station of National Research Centre at Nobaria, Egypt to find out the efficacy of different combination of foliar application of potassium fertilizer (K 38%) at (0, 1 and 2 cm/l). with three levels of nitrogen fertilizers (100% N, 75%N+25% bio potassium and 50% N+ 50% bio potassium) in its growth, yield and yield attributes. Results strongly showed that the addition of the highest level of N fertilizers (100%) improved plant growth, fruit yield, physical and chemical characters of garlic plants. In the same respect, the highest level of foliar spry of potassium (2 cm/l) gave significantly the best growth characters, total bulbs yield, physical and chemical quality of garlic bulb. The interaction between foliar application of potassium and N fertilizers levels had no significant effect on all studied characters.

[ FULL TEXT PDF 483-492 ] DOI: 10.36632/mejar/2021.10.2.33


Growth, Productivity and Quality of Certain Seedling Dry Date Palm in Comparison with Bartamuda cv. in Aswan, Egypt

O. A. Khalil and Manal A.M. Hassan

ABSTRACT: The present study was conducted during the 2019 and 2020 seasons with the aim of studying the performance of nine seedling strains of dry date palm and comparing them with Bartamuda cv. located in Banban village, Daraw City, Aswan Governorate. Data showed that ninth, fifth, and first strains were superiorin leaf length compared to other strains and Bartamuda. The tallest leaflets were recorded in Bartatmuda, followed by the first and fifth seedling strains. Bartatmuda, followed by the first strain, resulted in the best results for the yield/ palm compared to other date palm for both seasons. Bartamuda, followed by the fourth and eighth strains were the highest in total sugars % of fruits compared to other strains. However, the highest values of the fruit weight were noticed with the sixth, eighth, third, and first strains compared to Bartamuda in the first and second seasons, respectively. Bartamuda was superior in terms of productivity and quality as it attained the uppermost score units (90/100) compared to other seedy strains in the same region. It can be concluded that some of seedling strains surpass Bartamuda in some of the fruit quality traits such as the third, fourth, eighth, and the first strains.

[ FULL TEXT PDF 493-500 ] DOI: 10.36632/mejar/2021.10.2.34


The Influence of Citrus Rootstocks and NPK Nutrition on the Growth, Leaf Chemical Components and Some Fruiting Aspects of Balady Lime Trees

Huda M.H. Ismaiel and Randa E.Y. Habasy

ABSTRACT: During the 2017-2018 and 2018-2019 experimental seasons Balady Lime trees budded on three citrus rootstocks namely Troyer citrange, Volkamer lemon and Macrophylla were subjected to three levels of N, P and K i.e., 500:250:250, 750:500:500 and 1000:750:750. The merit was to access the suitable Citrus rootstock and the optimum rate of NPK responsible for maximum yield and producing better fruit quality. Obtained data showed that the suitable N P and K nutrition was substantially dependent on the citrus rootstocks. It was 1000:750:750 for lime trees budded on Troyer citrange, 750:500:500 for lime trees budded on Volkamer lemon and 500:250:250 for trees budded on Macrophylla. The best citrus rootstock for Balady lime trees grown under sandy soil was Macrophylla followed by Volkamer lemon and Troyer citrange ranked the last position in this respect. The best result concerning yield and fruit quality of Balady lime trees grown under sandy soil were obtained when the trees were budded onto Macrophylla citrus rootstock and supplied with NPK at 500:250:250, respectively. Unsuitable citrus rootstock for Balady lime trees grown under sandy soil was Troyer citrange.

[ FULL TEXT PDF 501-507 ] DOI: 10.36632/mejar/2021.10.2.35


Effect of Different Egyptian Planting Location and Irrigation Water Salinity Level on Gypsophilla Plants Tolerance

Magdy Azmy Barsoom, Georgina W. Rizk and Zakrya B. Mohamed

ABSTRACT: The experimental trial was consummated at three locations (Luxor, Giza and Alexandria) during 2015/2016 and 2016/2017 seasons to investigate the effect of the different planting locations in Egypt, combined with the effect of different salinity treatments on growth, flowering and chemical constituents of the newly formed plant of Gypsophila elegans in order to achieve higher productivity even under conditions of salinity stress to reduce the consumption of fresh water in a wide temperature range and different relative humidity. The results emphasized that Luxor location was the best for improving all plant parameters in both seasons. On the other hand, salinity treatments differed in their effects on plant traits, where the treatment of CaCl 2 1g/plant was the best for improving the morphological characters and chemical constituents of the plant in the two seasons. The opposite was right for the effect on proline content which gave the lowest level compared with that gained from the other treatments used in the two seasons. From the aforementioned results, it could be recommended to plant Gypsophila elegans under the condition of Luxor with the addition of CaCl 2 at 1g/plant.

[ FULL TEXT PDF 508-518 ] DOI: 10.36632/mejar/2021.10.2.36