scholarly journals ANTITRANSPIRANTS APPLICATION FOR IMPROVING THE BIOCHEMICAL CHANGES OF BARLEY UNDER WATER STRESS

2020 ◽  
Vol 51 (1) ◽  
Author(s):  
Hellal & et al.
Keyword(s):  
Water Stress ◽  
Stress Condition ◽  
Agricultural Research ◽  
Foliar Application ◽  
Irrigation System ◽  
Research Centre ◽  
Research Station ◽  
Nutrient Contents ◽  
Water Stress Condition ◽  
Barley Leaves

Field experiment carried out at Nubaria Agricultural Research station, National Research Centre, Egypt to study the role of antitranspirants application{Salicylic Acid (SA), K2SO4 and MgCO3} in alleviating drought-induced changes of some sensitive barley varieties. Foliar application of the antitranspirants compounds registered a positive effect on plant pigment, relative water content, nutrient contents and proline accumulation under water stress condition especially after spraying SA. The barley varieties Tamellalet and Giza 125 highly responded to antitranspirants application especially after foliar application of SA and MgCO3 over remaining varieties. Application of MgCO3 produced the most balanced nutrients for Tamellalet variety under normal irrigation system whereas, under stress condition. The data together provide some indication that Ksar-Megrine and Tombari cultivars has more efficient H2O2 scavenging machinery at least in peroxisomes under drought stress. Application of antitranspirants treatments led to significant increase of CAT, POD and GR activity which could alleviate the adverse effect of water stress on barley leaves. Results concluded that antitranspirants application could be effective for barley production in arid and semi-arid areas to reduce the adverse effects of water deficit.

MORPHOLOGICAL AND PHYSIOLOGICAL STUDY FOR SUGARCANE EARLY SELECTION TO DROUGHT TOLERANCE

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
A. A. Gaber ◽  
A. F. Abou-Hadid ◽  
Y. A. El- Gabry ◽  
M. H. M. Ebid
Keyword(s):  
Water Stress ◽  
Stress Condition ◽  
Agricultural Research ◽  
Water Levels ◽  
Research Station ◽  
Fresh Weight ◽  
Shoot Fresh Weight ◽  
Shoot Ratio ◽  
Root Shoot Ratio ◽  
Water Stress Condition

In Egyptian sugarcane breeding program, a pot experiment was carried out during 2019 season at Agricultural Research Station, Giza Governorate (latitude 26o 33? N and longitude 31o 12? E), Egypt, to evaluate twenty sugarcane clones, compared with the cultivated variety GT.54-9, under three irrigation water levels IWL (100, 80 and 60% of IWL). The traits FW of the shoot and root, root: shoot ratio, LAI, LAR, Chla, Chlb, Chla: Chlb ratio, carotenoids and proline were assessed. From this study clones 17 had height shoot fresh weight under water stress condition, as same as, clones 1, 18 and 19 had great behavior under water stress. In addition to most of sugarcane tested clones were not affected by increase the degree of water stress from 100 to 80% of IWL. The LAI, Chl.a and Chl.b traits showed the high correlation with shoot fresh weight, whereas, proline had strong relationships with root fresh weight under sugarcane drought stress.

scholarly journals Effect of Foliar Application of Zinc on Yield of Wheat Grown under Water Stress Condition

2016 ◽  
Vol 7 (5) ◽  
pp. 1025-1031 ◽  
Author(s):  
A. K. Paul ◽  
◽  
T. K. Bala ◽  
S. Shahriar ◽  
H. R. Hira ◽  
...  
Keyword(s):  
Water Stress ◽  
Stress Condition ◽  
Foliar Application ◽  
Water Stress Condition

scholarly journals MINERAL NUTRIENT STATUS OF SOME MEDITERRANEAN BARLEY VARIETIES AS AFFECTED BY DROUGHT STRESS IN EGYPT

2020 ◽  
Vol 51 (Special) ◽  
Author(s):  
Hellal & et al.
Keyword(s):  
Water Stress ◽  
Drought Stress ◽  
Stress Condition ◽  
Sandy Loam ◽  
Nutrient Status ◽  
Nutrient Content ◽  
Mineral Nutrient ◽  
Research Station ◽  
Water Stress Condition ◽  
Reduction Percentage

Field experiment was carried out at the experimental research station of Nubaria, representing the newly reclaimed sandy loam soils of Egypt. The study was done to evaluate the nutrient status of barley varieties (Egyptian, Tunisian, Algerian and Morocco) grown under normal (75% water holding capacity=WHC) and stress condition (40% WHC). Results indicated that the Egyptian variety El-Arish scored the highest values of N% under normal and drought stress condition and Giza 127 for P and Giza 123 for K in same sequence. The lowest values of N, P and Ca content observed with Giza 2000 variety. As for the Tunisian varieties, the lowest reduction percentage was attained at Raihane (9.38%, 3.54% and 3.62%) for N, K and Ca, respectively. Algerian barley varieties, N in Naïlia/Techedrett, P in Temacine/Ksar Megrine, K in Ras El-Mouche/Temacine, Ca in Saida/Ksar Megrine, got the highest and lowest values under normal and stress conditions, respectively. Morocco varieties, lowest values of N, P, K and Ca were recorded for Massine, Taffa and Amalou under water stress condition. The highest and lowest value of Fe, Zn and Mn were recorded for barley varieties Giza 2000, Giza 131 and Giza 127, respectively. Results concluded that the Egyptian varieties (Giza 127, Giza131, Giza 2000), Tunisian varieties (Kebili-3 and Tozeur-2), Algerian varieties (Techedrett, Naïlia) and Morocco varieties (Laanaceur, Amira) registered the lowest reduction percentage in nutrient content indicating their tolerance to sustain its productivity under water stress condition.

scholarly journals Changes in Yield and its Components of Maize (Zea mays L.) to Foliar Application of Zinc Nutrient and Mycorrhiza under Water Stress Condition

2015 ◽  
Vol 9 (5) ◽  
pp. 75-80 ◽  
Author(s):  
Amin Farnia ◽  
Saeed Khodabandehloo
Keyword(s):  
Water Stress ◽  
Interaction Effect ◽  
Yield Components ◽  
Stress Condition ◽  
Zea Mays L ◽  
Foliar Application ◽  
Grain Weight ◽  
Effect Of Water ◽  
Irrigation Period ◽  
Water Stress Condition

A field experiment was carried out in order to evaluate the effect of mycorrhiza and foliar application of Zn chelate on yield and yield components of maize (zea mays L.)  SC600 cultivar under water stress condition in the faculty of agronomy and plant breeding, Islamic Azad University, Boroujerd Branch, Iran during the growing seasons 2013-2014. The experiment was laid out in a split-factorial design based on randomized block design with three replications. Treatments were different irrigation periods (7, 14 and 21 days) in main plots and Zn chelate and mycorrhiza (strain of Glomus intraradices) in two levels of use and non use of them as factorial in sub plots. Results showed that, the effect of water stress mycorrhiza and Zn chelate on all traits were significant. The interaction effect of water stress mycorrhiza and Zn chelate on all traits excluding number of grain per cob and biomass were significant. Also interaction effect of water stress ad mycorrhiza on number of grain per cob and 100 grain weight were significant only. However the interaction effect of water stress*Zn chelate and mycorrhiza*Zn chelate were significant on 100 grain weight and biomass yield respectively. The comparison of the mean values showed that 7 day irrigation period treatment with use of mycorrhiza  and Zn chelate had the highest chlorophyll SPAD,  number of row per cob, 100 grain weight, grain yield and harvest index but 21 day irrigation period without application of Zn chelate and mycorrhiza had the lowest of them. The maximum production of maize was recorded for normal irrigation as 7 day irrigation period and application of mycorrhiza and Zn chelate. It can be stated that with respect to the alleviating effects of mycorrhiza fungi under moderate drought stress on corn grain yield, these fungi can enhance corn water efficiency under drought conditions and hence increase corn yield. The combined effects of mycorrhiza fungi and Zn chelate can intensify the alleviating effects of mycorrhiza fungi on corn growth and production under water stress. Therefore, we can increase yield and yield components of maize by decrease of irrigation period and application Zn chelate as nutrient and colonization of corn roots by mycorrhiza fungi.DOI: http://dx.doi.org/10.3126/ijls.v9i5.12702

scholarly journals Genotypic response of barley to exogenous application of nanoparticles under water stress condition

2019 ◽  
Vol 72 (2) ◽  
pp. 15 ◽  
Author(s):  
Hamid Ghorbanian ◽  
Mohsen Janmohammadi ◽  
Asghar Ebadi-Segherloo ◽  
Naser Sabaghnia
Keyword(s):  
Water Stress ◽  
Tio2 Nanoparticles ◽  
Seed Yield ◽  
Stress Condition ◽  
Foliar Application ◽  
Morphological Characteristics ◽  
Sio2 Nanoparticles ◽  
Yield Component ◽  
Water Stress Condition ◽  
Barley Genotypes

<p>Beneficial nanoparticles (SiO2 and TiO2) can have various profound effects on the crop physiological, biochemical and morphological characteristics. Here, we evaluated the mitigation of drought stress in barley genotypes by foliar application of SiO2 and TiO2 nanoparticles under filed condition in North West of Iran. Nanoparticles were foliar applied in late vegetative phase and during reproductive stages. Drought was imposed at by irrigation withdrawals during the dry months in the end of the growing season. We measured parameters related morphological growth, yield, and yield component. The genetic diversity between the genotypes was quite evident and the highest seed yield and yield component were recorded for G1, G2, G4, G11, G12 and G13. Foliar application of nanoparticles considerably affected the plant height, thousand seed weight, biological and seed yield. The best performance was observed for plant treated with SiO2 nanoparticles. Spike length of G2, G6, G13 and G20 considerably responded to nano silicone foliar application. However, the best results for G8, G11 and G20 were obtained by foliar application TiO2 nanoparticles while this treatment decreased the seed yield components in G1, G5, G9, G10, G15 and G20. This could be due to genetic variation between the evaluated genotypes and high sensitivity of some genotypes to the applied concentration. The results of current study showed that application of SiO2 nanoparticles under water stress condition could have more beneficial effects on yield component of barley genotypes.</p>

scholarly journals Growth and Yield Production of Canola as Affected by Organic and Mineral Fertilizers Application under Drought Stress Conditions

2021 ◽  
pp. 1-13
Author(s):  
Saied El Sayed ◽  
Farid Hellal ◽  
Hanan H. Abdel-Kader
Keyword(s):  
Water Stress ◽  
Foliar Application ◽  
Foliar Spray ◽  
Growth Parameter ◽  
Growth And Yield ◽  
Research Centre ◽  
Mineral Fertilizers ◽  
Branch Number ◽  
Yield Production ◽  
Water Stress Condition

Field experiment were carried out at the Research and Production Station of the National Research Centre, Nubaria region, Behiera Governorate, Egypt during 2019/2020 to study the effects of compost and zinc foliar application on growth and yield production of canola under drought condition. The water stress treatments (75 and 40% water holding capacity, WHC) occupied the main plots and compost treatments at the rates (0, 2, 4 and 6 ton fed-1) were allocated at random in the sub-plots with the foliar application of zinc at a rate of 0, 50 and 100 ppm. Data noticed that increase compost rate associated with increasing the SPAD red and RWC under both irrigation treatments where 75%WHC scored the highest values than 40 %WHC. Results indicated that increasing compost rates was associated with increasing of canola characters plant height, number of branch, number of pods and 1000 seeds weight as well as, seed yield, biological yield as affected by compost and zinc application rates and their interaction under normal and stress treatments. Also, data illustrated that stress tolerance indices (SSI, STI, GMP, YI, YSI, MP, TOL and HM) of canola as affected by water stress and Compost application and Zinc sulphate. Data indicated that the highest values were attained after application compost at a rate of 6.0 ton fed-1 with a foliar spray ZnSO4 at a rate of 100 ppm. Results concluded that, application of compost and zinc is important for enhancing the growth parameter and seed production of canola under water stress condition.

scholarly journals Morphophysiological Responses of Common Bean (Phaseolus vulgaris L.) Genotypes to Water Stress

2021 ◽  
Vol 5 (1) ◽  
pp. 1-17
Author(s):  
Mebelo Mataa ◽  
◽  
Philip Kalima ◽  
Davies Lungu ◽  
◽  
...  
Keyword(s):  
Water Stress ◽  
Phaseolus Vulgaris ◽  
Grain Yield ◽  
Common Bean ◽  
Stress Condition ◽  
Research Station ◽  
Moisture Regime ◽  
Phaseolus Vulgaris L ◽  
Chl A ◽  
Water Stress Condition

Yield of common bean (Phaseolus vulgaris L.) is highly constrained by water deficit especially when this occurs during the reproductive development. The purpose of the study was to determine the association of the morphophysiological traits with water stress and how this affects grain yield in common beans. A field experiment involving eight common bean genotypes and three water regimes (50 %, 75 %, and 100 % of crop evapotranspiration) was conducted at National Irrigation Research Station, Mazabuka district during the 2012 growing season. A Split plot design with four replications was used; with soil moisture regime (main plot) and the genotypes (subplot). Based on variation in water stress tolerances, 8 test genotypes - Gadra, KE 3, KE 4, ZM 4488, SER 76 SER 180, SER 89 and CAR-ZAR were used. Water stress treatments were imposed at pre-flowering stage and was discontinued after 43 days when the crop was in its late reproductive stage. Significant differences were found among genotypes for Chlorophyll a (Chl a), Chlorophyll b (Chl b), Total Chlorophyll, Relative water content, Grain yield, Number pods per, Seed weight, Seeds per pod and Days to 50 % flowering under the three water stress conditions. The grain yield in normally irrigated condition (2191.3 kg ha-1) was 60 % higher than in high water stress condition (866.2 kg ha-1), while in the low water stress condition (1078.3 kg ha-1), the reduction in grain yield was 50.8 %. There were significant genotype by environment showing that the genotypes behaved differently under the different growing conditions. Results suggested that Gadra, KE 4, ZM 4488, and SER 180 were water stress tolerant while the SER 89, CAR-ZAR, KE 3 and SER 76 were water stress sensitive genotypes. These results suggest that a selection method based on 100 SW, Chl a, Chl b, and NPP can be used in breeding for bean genotypes to water stress.

Effect of foliar application of chelated copper and manganese on yield components and fibre properties of Egyptian cotton (Gossypium barbadense)

1993 ◽  
Vol 121 (2) ◽  
pp. 193-198 ◽  
Author(s):  
Z. M. Sawan ◽  
M. H. Mahmoud ◽  
B. R. Gregg
Keyword(s):  
Yield Components ◽  
Agricultural Research ◽  
Foliar Application ◽  
Field Studies ◽  
Gossypium Barbadense ◽  
Research Centre ◽  
Fibre Properties ◽  
Foliar Sprays ◽  
Egyptian Cotton ◽  
Cotton Cultivar

SUMMARYA decline in supplies of organic manures and the increased use of chemical fertilizers has led to a decrease in the micronutrient content of the soil, with attendant effects on yield.Field studies were conducted in 1986 and 1987 at the Giza Agricultural Research Centre, Egypt, to determine the effect of Cu-EDTA and Mn-EDTA foliar sprays on growth, mineral content, yield components and fibre properties of the Egyptian cotton cultivar Giza 75 (Gossypium barbadense L.).All combinations used significantly increased the uptake of Cu and Mn and the dry matter yield. The earliness of harvest and the value of yield components were all increased by the application of Cu or Mn; 25 mg/1 of both Cu and Mn gave the highest values. Lint percentage and fibre properties were not significantly affected.This study indicated that the yield of cotton, grown under otherwise standard conditions, may be increased by foliar sprays of Cu-EDTA and Mn-EDTA combined.

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