Egyptian Cotton Cultivar Research Articles

Eco-friendly lignin nanoparticles as antioxidant and antimicrobial material for enhanced textile production

Natural polymers are bioactive compounds that are used in the treatment of several disorders. Natural lignin, an amorphous polymer, offers significant potential for use as a building block in the production of bio-renovation materials. This study used an alkaline solvent technique to extract lignin from two Egyptian cotton cultivar byproducts, Giza 86 and 90. We then created nano-lignin to recycle cotton stalks into an environmentally beneficial product. The characterization of L86, L90, LNP86, and LNP90 was carried out using particle size, zeta potential, FT-IR, and TEM. Antioxidant activity using the DPPH assay and antimicrobial activity were determined for lignin and nano-lignin. Seven pathogenic bacteria (Bacillus cereus, Staphylococcus aureus, Staphylococcus sciuri, Salmonella typhi, Salmonella enterica, Escherichia coli, and Pseudomonas aeruginosa) and five mycotoxigenic fungi (Aspergillus flavus, Aspergillus ochraceus, Aspergillus niger, Fusarium proliferatum and Penicillium verrucosum) were used for antimicrobial activity. The results showed high antioxidant efficiency for LNP90, with an IC50 of 10.38 µg/mL. The antimicrobial activity showed positive growth inhibition for all studied microorganisms, with significant differences in nano-lignin compared to ordinary lignin. lignin and nano-lignin were effectively applied to treated textiles for medical purposes. The study concluded that single-use medical textiles with anti-microbial and anti-oxidant properties, made from lignin and nano-lignin, could benefit patients intolerant to antibiotics.

Dyeing of some Egyptian cotton varieties using agricultural wastes (peanut outer skin)

Purpose Peanut skins are an agro-waste product with no commercial value. The purpose of this paper is to evaluate peanut skin as a natural dyestuff and to determine if this natural dye could be used in the dyeing of some Egyptian cotton cultivars. Design/methodology/approach The methodology consists of several steps; dye extraction procedure from peanut skin through aqueous extraction, then dyeing optimized using simultaneous mordanting using alum. Finally, dyed cotton has been subjected to different textile laboratory tests, for example, color measurements and mechanical properties. Color-fastness was determined on Egyptian cotton fabric. The peanut skin as a source of natural dye and the dyed cotton sample were characterized by fourier transform infrared spectroscopy (FTIR) analysis. Findings It was found that the natural dye extracted from peanut skin has an affinity for cotton samples and showed high dyeability with a unique color shade, good color strength and very good fastness. Originality/value The novelty of this paper is the extraction of color from the peanut's outer skin which is discarded as waste such as agro-waste of the agricultural process which can be used as a natural dye in the textile industry and applied to dyeing some Egyptian cotton fibers from different genotypes.

Nano-silicon and boron foliar applications for promoting growth, yield, and fiber quality of Egyptian cotton (Gossypium barbadense L.)

Improving cotton yield and fiber quality is a necessity to supply the increasing demand for natural fibers manufacturing. Therefore, this study aims to evaluate nano-silicon (Si) and boron (B) foliar applications on growth, yield and fiber quality of Egyptian cotton cultivars (Giza 92, 94, and 95). Field experiments were conducted in the Agricultural Research and Experimental Station, Faculty of Agriculture, Cairo University, Egypt during seasons of 2019 and 2020. The experiments were laid out in a split-plot based on a Randomized Complete Block Design with five replicates. Six foliar applications (control, convention-Si, nano-Si, B, convention-Si + B, and nano-Si + B) were performed three times (45, 65, and 80 days after sowing). Results showed the superiority of Giza 95 in total and open bolls plant−1, boll weight, lint% and seed cotton yield, Giza 92 in plant height, sympodial branches plant−1 and fiber quality, while Giza 94 in seed index and color attributes. Individual nano-Si was superior in plant height (119.8 cm), boll weight (2.42 g), lint% (38.8%), seed cotton yield (40.26 g plant−1 and 3670 kg ha−1), uniformity index (85.85%), while individual B was superior in total (23.14) and open (19.91) bolls/plant. Individual Si or B had an equivalent effect on seed index, fiber length, strength and color attributes. compared with convention-Si + B, Nano-Si + B significantly increased plant height (3.42%), total (5.34%) and open (4.44%) bolls plant−1, boll weight (3.21%), lint% (1.82%), uniformity index (1.41%) while insignificantly differed in seed cotton yield, fiber length and strength. Therefore, nano-Si + B foliar applications are recommended to improve cotton production and fiber quality.

Potential of transplanting bare-root seedlings comparing with direct seeding in some Egyptian cotton cultivars

Potential of transplanting bare-root seedlings comparing with direct seeding in some Egyptian cotton cultivars

Effect of nitrogen fertilizer rates and splitting nitrogen on yield and yield components of Egyptian cotton cultivar Giza 90 under surface and drip irrigation systems in newly reclaimed lands

Effect of nitrogen fertilizer rates and splitting nitrogen on yield and yield components of Egyptian cotton cultivar Giza 90 under surface and drip irrigation systems in newly reclaimed lands

Salinity indices and path analysis in Egyptian long-staple cotton cultivars

Soil salinity is one of the serious abiotic stresses adversely affects crop production. The objectives of this study were to screen fifteen long-staple cotton belong to Gossypium barbadense L. for salinity tolerance, salinity indices, genotypic correlations, and path-coefficient analysis. Under normal soil the genotypes differed significantly in most traits in both years. Under saline soil the differences among genotypes re significant in one year and in the combined analysis for SCY/P, LY/P, SI, NS/B, PH, and Pressley index. The cultivars “G 90 x Aus”, G95, G 90, G 80, and G 83 showed the highest performance in SCY/P, LY/P, Lint%, NB/P and NS/B either under normal or saline soil. The reduction% caused by salinity was observed for PH (55.92%), LY/P (52.21%), SCY/P (48 75%), NB/P (32.47%), LI (5.68%), Micronaire reading (11.22%), Pressley index (6.63%) and UHM length (0.89%). Giz90 x Aus followed by Giza 90 showed the best tolerance to salinity stress. The STI, MP, GMP, HM and DI detected both of tolerant and susceptible genotypes and could be considered the best tolerant indices. The direct and indirect effects of SCY/P components varied greatly under both environments. The direct effects of the SCY/P components under normal soil were 0.504, 0.401, 0.153 and 0.147 for NB/P, LY/P, SI, and NS/B, respectively. However, under saline soil the direct effects were 0.802, 0.178, 0.128 and 0.050 for LY/P, NB/P, NS/B and SI, respectively. Therefore, under both environments, selection should be paid mainly on NB/P and LY/P.

Response of some Egyptian cotton cultivars growth, yield and fiber quality to different sources of nitrogen fertilizers and foliar zinc application

Two field experiments were carried out in Agricultural Research and Experimental Station, Faculty of Agriculture, Cairo University, Giza, Egypt (2019 and 2020) to study the response of Egyptian cotton cultivars (Giza 92, Giza 94 and Giza 95) growth, yield and fiber properties to foliar zinc (Zn) rates (0, 100 and 200 ppm) and nitrogen (N) fertilizers sources; urea (U), ammonium nitrate (AN) and ammonium sulfate (AS). Cultivars, N sources and foliar Zn led to a significant effect on plant height, number of sympodial branches plant-1, total and open bolls plant-1, boll weight, seed index, seed cotton yield plant-1, seed cotton yield fed-1, fiber strength, and fineness. While, cultivars had a significant effect on the position of the 1st sympodial node, lint%, fiber length and uniformity index. Giza 95 was a superior in above parameter except seed index and fiber quality. While, Giza 92 was a superior in fiber quality. Significant of two and three interactions between studied factors existed on most of studied traits. Whereas, the highest values were obtained from plots treated with AS with foliar Zn at 200 ppm in most cases. Significant relationships were found between total boll and percentage of open boll plant-1; R2 = 0.76 (Giza 92), 0.89 (Giza 94) and 0.91 (Giza 95). Also, seed cotton yield fed.-1 with open bolls plant-1, boll weight and lint% (R2 = 0.862, 0.632 and 0.619, respectively). In such experimental soil conditions ammonium sulfate and foliar Zn at 200 ppm could be recommended to improve the cotton properties.

Preparation, Characterization, Antioxidant and Antimicrobial Activities of Lignin and Eco-friendly Lignin Nanoparticles from Egyptian Cotton Stalks

Natural biopolymers as lignin, a common plant biopolymer, look interesting as antimicrobial agents against the pathogenic microorganisms. This study aims to produce eco-friendly products by extracting lignin from two Egyptian cotton cultivars, Giza 86 and Giza 90, using the organosolv technique and transferring them into lignin nanoparticles then to determine lignin and lignin nanoparticles bioactivities and to treat textiles for medical applications against seven harmful bacteria and five mycotoxigenic fungi. OLNPs were studied using Zetasizer, Fourier Transformer Infrared Spectroscopy (FTIR), and Transmission Electron Microscope (TEM). The results revealed that lignin and lignin nanoparticles had a greater effect on bacteria than fungi. Penicillium verrucosum exhibited the greatest inhibition zone (15.5±1.32) for OLNP86, while Salmonella typhi exhibited the greatest inhibition zone (14.7±1.28) for OLNP86. Similarly, textiles treated with lignin and lignin nanoparticles showed a clear effect on bacteria and fungi under study, where Penicillium verrucosum exhibited the greatest inhibition zone (30.7±1.76), and Pseudomonas aeruginosa exhibited the greatest inhibition zone (36.3 ±0.58) for OLNP86. The current study shows that OLNP's antioxidant and antimicrobial characteristics can be further utilized in medical textiles, which can be used for patients with conditions such as diabetes, high blood pressure, and kidney failure who cannot tolerate antibiotics.

Parametric Stability and Principal Components Analysis of some Egyptian Cotton Cultivars under Different Environments

The present study was conducted to select cotton stable cultivars with high productivity across various environments. Nine Egyptian cotton cultivars were grown in a split-plot randomized complete block design with three replications consisted of six different environments (2 years × 3 sowing dates) to identify the high yield stability cultivars under these conditions. Pooled analysis of variance for; number of bolls/plant, seed cotton yield and lint yield revealed significant differences due to cultivars, environments and their interactions. Results revealed that the cultivars Dandara and Giza 90 were considered as superior cultivars under different environmental conditions due to their high number of bolls/plant, seed and lint yield traits across different environments when compared with grand mean for these traits beside acceptable stability parameters (bi near to one, S2di non-significant, α stability value not significantly differed from zero and the λ statistic was not significantly differed from one). Therefore, it could be used in breeding programs for development of high yield stable genotypes across environments for future use. Also, principal component analysis (PCA) showed that Dandara and Giza 90 cultivars were located near all studied traits and environments (stable cultivars over different environments). According to our results the two cultivars (Dandara and Giza 90) can be recommended to be uses under a wide range of environmental conditions and use in breeding programs for development of high yield stable genotypes across environments for future use.

Comparative Effect of Different Mineral Nitrogen Fertilizer Sources on Productivity and Quality of Some Egyptian Cotton Cultivars

Developing cotton cultivars with a high yielding potential, nutrients extract and efficient, fiber attributes, earliness, high oil as well as protein cottonseed contents and pest resistance across variable environments is of great importance of cotton breeding programmer in Egypt. The field experiments were carried out at Agric. Res. and Exp. Stat., Fac. Agric., Cairo Univ., Giza, Egypt during 2017 season and repeated in 2018 season to evaluate the productivity and fiber technology response of three new released Egyptian cotton cultivars namely; Giza 93, Giza 94 and Giza 95 to three nitrogen fertilizer sources i.e. urea (U - 46.5%N), ammonium nitrate (AN- 33.5%N) and ammonium sulfate (AS - 20.5%N). The randomized complete block design with split-plot arrangement with three replications was used. The main plots were devoted to cotton cultivars and the nitrogen fertilizer sources was randomly distributed in sub-plots. Giza 93 cultivar had the superiority over other cultivars concerning growth attributes, yield and yield components, chemical and biochemical constituents of foliage and seeds of cotton as well as fiber technology parameters. Generally, nitrogen fertilizer sources had a significant effect on growth attributes, yield as well as its components, fiber technological parameters, chemical and biochemical constituents of foliage and seeds of cotton whereas, ammonium sulfate was superior in plant height, 1st sympodial node, no. sympodial branches plant-1, no. total bolls plant-1, boll weight, seed index, lint %, seed cotton yield fed-1, fiber technological parameters, chemical as well as biochemical constituents of foliage and seeds of cotton. Significant cotton cultivars × nitrogen fertilizer sources interactions existed on most of studied traits.

Impact of Herbicides on The Weeds and Quantity of Cotton (Gossypium barbadense L.) Variety Giza 94

Two field experiments were conducted during 2018 and 2019 to examined the effect of herbicides and hand hoeing on productivity and quality characters of Egyptian cotton (Gossypium barbadense L.)cultivar Giza 94. In summary, our work found that the highest effect on the fresh and dry weight of Portulaca olereceae and Echinochloa colonum was achieved by twice hand hoeing and pantira® + fuzilade® after 50 and 70 days of planting. Whereas, during the first season twice hand hoeing recorded the highest decreased value of the fresh weight of Portulaca olereceae (51.25a) after 50 days of planting followed by Pantira® + Fuzilade®(88.75 b). When recording the fresh weight for Echinochloa colonum the highest effect achieved twice hand hoeing (225.5 d and 470 b) after 50 and 70 days, respectively. During the second season 2019 after 50 days of planting the best results for biomass fresh weight achieved against Portulaca olereceae by twice hand hoeing (41.25c) and pantira® + fuzilade®(78.75b). whereas, the same results were achieved against the biomass fresh weight of Echinochloa colonum after 50 days by twice hand hoeing (21.55d) and pantira® + fuzilade®(25.9c). When determined the impact of herbicides on the chlorophyll, plant height, the number of bolls /plants, boll weight, fruit branches, weight 100 seeds and cotton of yield during seasons 2018 and 2019. The highest value was recorded by twice hand hoeing and pantira® + fuzilade for all growth characteristics and yield.

Response of Two Egyptian Cotton Cultivars to the Balanced Fertilization Between Macro and Micro Nutrients as Foliar Application

Response of Two Egyptian Cotton Cultivars to the Balanced Fertilization Between Macro and Micro Nutrients as Foliar Application

Effect of Foliar Feeding with some Chelated Nutrients on Productivity and Quality of Egyptian Cotton Cultivar Giza 86

Field experiment was carried out through 2018 season and repeated through 2019 season at El-Gemmeiza Agricultural Research Station, El-Gharbia Governorate, Egypt. These experiments aimed to study the effect of three foliar sprays with chelated magnesium and/or zinc on productivity and quality of the Egyptian cotton cultivar Giza 86. Two levels (2 and 4 g of each nutrient/liter water (,in addition to the control treatment were used. The experimental design was a randomized complete blocks with 3 replications.The data indicated that combination between chelated magnesium and chelated zinc at the two levels used significantly increased the concentrations of Mg, Zn and photosynthetic pigments in the leaves in both seasons. In addition, combination between chelated magnesium and chelated zinc at the low level (2 g/liter water of each nutrient) significantly increased total dry weight/plant, leaf area index, plant height, number of fruiting branches/plant, number of total flowers/plant, number of total bolls set/plant, boll setting percentage, earliness percentage, number of open bolls/plant, boll weight, seed index, lint percentage and seed cotton yield/feddan, fiber length, uniformity index and fiber strength in both seasons. The control treatment recorded the lowest values of these traits and significantly increased boll shedding percentage. Micronaire reading was insignificantly affected. It could be concluded this combination three times to obtain the high quality and productivity and recommended the possibility of being applied by farmers to enhance cotton productivity in light of the lack of magnesium and zinc in the soil under conditions similar to El-Gemmeiza region.

Evaluation of Egyptian cotton cultivars

Present study was carried out to evaluate 11 cotton varieties under two locations over two growing seasons 2015 and 2016 in Egypt. The results showed that there were significant differences among environment, genotypes, and their interactions for all the studied characters. The variety Giza 94 surpassed all varieties in yield and its components shared with the variety Giza 92 for seed cotton yield. The varieties Giza 94, Giza 92 and Giza 96 recorded highest yield and yield components at Nubariya location. The varieties Giza 87, Giza 88, Giza 92, Giza 93 and Giza 96 recorded highest values at Nubariya location for most fiber characters. Principal component analysis showed that the characters which have relatively high value in the first principal component (PC1) were earliness percentage, seed cotton yield, lint yield, boll weight, lint percentage, and micronaire reading. The second principal component (PC2) was principally affected by earliness percentage, fiber length and fiber strength. At the same time, cluster analysis could efficiently describe the characteristics of group of genotypes in different groups. The eleven cotton genotypes were grouped into five major clusters. The obtained results indicated the presence of genetic diversity among the tested cotton genotypes. Genotypes from divergent clusters can be used for hybridization in order to isolate useful recombinants in the segregating generations. This information might be used in the breeding programs for improvement of Egyptian cotton.

Effect of Water Irrigation Management and Nitrogen Fertilizer Sources on Water Productivity and Quality of Some Egyptian Cotton Cultivar

The experimental field was conducted at the experimental farm, Fac. of Ag., Al-Azhar U., Assuit, during two growing summer seasons of 2018 and 2019. A field experiment was designed as randomized complete block with split split-plot arrangement of treatment with three replications. The current study aims to evaluate different irrigation methods (conventional and alternative furrows) and nitrogen fertilizer Sources (urea as fast nitrogen fertilizer and ureaform as slow one) for maximizing the production of some cotton varieties (G80 and G90) as well as to define the most favorable irrigation manner that achieves the highest water productivity and high cotton yield and its quality. The results showed that alternate furrow irrigation (AFI) saves about 12 % of the actual evapotranspiration (ETa) compared to the conventional furrow irrigation (CFI). The ETa increased with urea fertilizer compared to ureaform fertilizer. The estimated evapotranspiration (ETo) values in both growing seasons followed the descending order of FAO Penman-Montithe > Turc > Hargreaves. It is clear that the Hargreaves equation calculated ETo efficiently for cotton crop growth under Assiut region circumstances. The AFI increased the crop water productivity (CWP) and irrigation water productivity (IWP) by 13 and 15%, respectively compared to the CFI. The irrigation methods during both growing seasons had significant effects on cotton seed yield, cotton lint percentage, boll weight, lint index, seed index, 2.5% span length, length uniformity ratio, fiber strength (pressly index) and fiber fineness. The AFI realized positive higher effect on cotton traits and yield quality than those under (CFI).

Comparative Study on some Pure Successive Maintained Nuclei (Foundation Seed) of Giza 95 Cotton Cultivar and its Corresponding Handled one’s in General Cultivation.

Four successive pure maintained nuclei (N) and four handled farmer's seeds (F) of Giza 95 Egyptian cotton cultivar were used to evaluate the changements that might occur in earliness, yield ,fiber quality and genetic constitution of the cultivar after handling the seeds by the farmers. Two field experiments were carried out at Sids Agric. Res. Station, throughout growing seasons 2017 and 2018. Genotypes mean squares were significant and/or highly significant for seed cotton yield, lint yield, earliness index and yarn strength in both seasons and combined analysis. The greatest amount of differences among the studied strains were mainly due to the variances among the farmer's seeds and the interaction (N vs F), for these characters indicating farmer seeds might get genetic imperfection due to mechanical mixture or out-crossing by off-type plants. The interactions of genotypes by environments (G x E) were insignificant for all studied characters except boll weight and fiber fineness. Regarding mean performances, the results indicated that the pure nuclei strains surpassed the farmer's ones for most studied traits. The older farmer's strains (G.95/2014) exhibited lower mean performance estimates for most studied yield traits over the two environments and it’s combined data. Also, nuclei seeds gave the best performances for most fiber properties compared with the farmer's ones. Seed cotton yield in both nuclei and farmer's strains was positively and significantly related with earliness index and fiber fineness suggested that any changes when appear in these characters may be correlate with decrease of seed cotton yield or any deterioration appeared.

The Relationship Between Seed Cotton Production Locations and Their Lint Cotton Grade on Fiber Quality and Yarn Strength of The Egyptian Cotton Cultivar Giza 86

The Relationship Between Seed Cotton Production Locations and Their Lint Cotton Grade on Fiber Quality and Yarn Strength of The Egyptian Cotton Cultivar Giza 86

Ginning Efficiency and Fiber Quality Properties of Cotton as Affected by Roller Gin Stand Feeding Methods and Seed Cotton Grade

Aims: Attaining the highest ginning efficiency process and fiber quality properties of Egyptian cotton cultivar ̔ Giza 88᾿during feeding methods of roller gin stand is the ultimate objective of the community of cotton field industry for local uses, but the productivity of the three feeding methods of conventional roller gin stand used in ginning process still limited.
 Therefore, the aim of this investigation is to overcome this obstacle.
 Study Design: This investigation was conducted in a completely randomized design with three replicates and analyzed as a factorial experiment.
 Place and Duration of Study: Plant Production Department, the Faculty of Agriculture (Saba Basha), Alexandria University, Egypt during 2017.
 Methods: Four seed cotton grades; namely, Good to Fully Good (G/FG), Good + ¼ (G + ¼), Good (G) and Good -¼ (G - ¼) belonging to ̔ Giza 88᾿ cotton cultivar were used in this work. The extra-long staple Egyptian cotton variety with the pedigree and origin of cotton Giza 88 (Giza 77 x Giza 45 B) was used. This work was carried out in 2017. About half cantar (1 cantar = 157.5 kg) of each seed cotton grade as a bulk sample was thoroughly mixed and checked and reclassified by a committee of three expert classers belong to the Cotton Arbitration for Testing General Organization (CATGO), in the gin plan.
 Results: The obtained results indicated that the gin stand's hand feeding method (control treatment); results in significant increases the highest mean values of the gin stand capacity (0.97 kg lint/inch/h), Lint % (36.59%) and lint grade code (27.33) and the lowest mean value of the ginning time (1.42 h/cantar). Meanwhile, the Belt (2 row) as a mechanical feeding method; gave rise to the lowest mean value of gin stand capacity (0.89 kg lint/inch/h). The differences in fiber length parameters (Upper half mean length and short fiber index), fiber elongation %, micronaire reading, yellowness degree (+b) were not significantly affected. The highest seed cotton grade (Good / Fully Good) gave the better lint cotton grade and the best fiber properties tested by HVI instrument of ̔ Giza 88᾿ cotton cultivar.
 Conclusion: The hand feeding method of seed cotton to the gin stand surpassed all studied feeding methods in gin stand productivity, lint percentage and the most HVI fiber properties are better classer grade. Though, this method is recommended to be used specially with the high levels of the extra-long cottons.
 Cylinder feeding method ranked first in order among studied mechanical method and it could be recommended for ginning medium and low seed cotton level.
 Belt (2 rows) is the preferred feeding method regardless of gin stand productivity.

EFFECT OF WATER STRESS AND FERTILIZATION ON COTTON PRODUCTIVITY UNDER CALCAREOUS SOIL CONDITIONS

Two field experiments were carried out at the Farm of Nubaria AgriculturalResearch Station, Agricultural Research Center (ARC), Giza, Egypt, representing the newly reclaimeddesert land of North West, Egypt in Nubaria, which located at 46 Km South West of Alexandria city tostudy the effect of irrigation regimes and NPK fertilization, earliness parameters, seed cotton yield, itscomponents of Egyptian cotton (Gossypium barbadense L.) cultivar Giza 94 was used which representlong staple Egyptian cotton category in the two summer growing seasons of 2017 and 2018. Theexperimental design was a split-split plot with four replications, where the irrigation regime treatmentswere allocated to the main plots and the sub-main plots included NPK fertilization, while foliarapplication treatments were taken place in sub-sub plots, where irrigation regimes were irrigation at50% depletion of available soil moisture. (I1), irrigation at 70% depletion of available soil moisture(I2) and irrigation at 90% depletion of available soil moisture (I3). While NPK-fertilizer rates were100% of NPK recommended doses (75 kg N, 31 P2O5 and 48 K2O/fad.), 75% of NPK recommendeddoses (56.3 kg N, 23.3 P2O5 and 36 K2O/fad.) and 50% of NPK recommended doses (37.5 kg N, 15.5P2O5 and 24 K2O/fad.). Foliar application treatments were control (water), potassium silicate (twotimes at the rate of 1 kg/fad., before flowering and two weeks later), extractable mixed of algae, aminoacids and micronutrients (two times at the rate of 1 L/fad., before flowering and two weeks later).Theresults revealed that growth and yield attributes of cotton were affected by water stress under NPKfertilization and foliar application, in this respect the highest value of growth, yield characters wereachieved under irrigation regime (50% depletion of available soil moisture) and recommended dose ofNPK and foliar application of Algal extracts + amino acids + micronutrient) under Nubaria conditions.

Response of Some Egyptian Cotton Cultivars to Foliar Spray by Some Microelements

Two field experiments were conducted on the Farm of Agricultural Research and Experiment Center, Faculty of Agriculture Moshtohor, Benha University, Toukh Directorate, Kalubia Governorate, Egypt, during the two successive seasons of 2015 and 2016 to study the effect of foliar spray by eight micronutrient treatments, i.e. without application (control), Zn, Mn, Fe, Zn + Mn, Zn + Fe, Mn + Fe and Zn + Mn + Fe on growth, yield components and yield as well as fiber quality properties for the two Egyptian cotton (Gossypium barbadense, L.) verities, i.e. Giza 86 and Giza 88. The experimental design was split plot design in four replications. The obvious results of this investigation can be summarized as follows: Significant differences were detected for all growth, yield components and yield as well as fiber properties of cotton among the two Egyptian cotton cultivars during 2015 and 2016 seasons. Giza 86 cultivar significantly surpassed Giza 88 cultivar and gave the greatest mean values of plant height, No. of sympodial branches/plant, No. of open bolls/plant, seed cotton yield/plant, boll weight, lint %, lint cotton yield/plant, seed index, seed cotton yield/fed, lint cotton yield/fed, fiber elongation %, micronaire value, fiber maturity ratio and fiber reflectance in the both seasons. While, Giza 88 recorded the highest mean values of upper half mean length, length uniformity index, fiber strength and fiber yellowness degree in the two seasons. Data revealed that the differences between the studied eight microelements treatments on growth, yield components and yield as well as fiber properties of cotton during 2015 and 2016 seasons were significant except, fiber reflectance and fiber yellowness degree were not significant. The application of combined of Zn + Mn + Fe treatment gave significantly the greatest mean values of plant height, No. of sympodial branches/plant, No. of open bolls/plant, seed cotton yield/plant, boll weight, lint %, lint cotton yield/plant, seed index, seed cotton yield/fed, lint cotton yield/fed, upper half mean length, length uniformity index, fiber strength, fiber elongation %, micronaire value and fiber maturity ratio in the both seasons. Planting Giza 86 which foliar spray by mixed Zn + Mn + Fe treatment significantly recorded the highest mean values of No. of open bolls/plant, seed cotton yield/plant, boll weight, lint cotton yield/plant, seed cotton yield/fed, lint cotton yield/fed and fiber maturity ratio in the first and second seasons. Meanwhile, planting Giza 88 under the same micronutrients application surpassed the other combinations in upper half mean length, length uniformity index and fiber strength during the both seasons.