National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology
Egyptian Journal of Agronomy
0379-3575
2357-0288
40
2
2018
08
01
Seed Pre-soaking on Gibberellic Acid (GA3) Enhance Growth, Histological and Physiological Traits of Sugar Beet ( Beta vulgaris L) under Water Stress
119
132
EN
Enas
Azab
Agricultural Botany Department, Faculty of Agriculture, Suez Canal Universty, Ismailia, Egypt
enassafaa2010@hotmail.com
10.21608/agro.2018.2944.1095
THE PRESENT study aimed to evaluate the effect of three levels of gibberellic acid solutions (50, 100 and 150 mg/L) on two sugar beet cultivars. (Farida and Sultan) under three field capacity (50 , 75 and 100%). This experiment was carried out at the Experimental Farm, Faculty of Agriculture, Suez Canal University, Ismailia, during the two growing successive seasons of 2013/14 and 2014/15. Results showed that all GA3 tested treatments statistically improved growth parameters, i.e., number of leaves, fresh and dry weights of leaves/plant, as well as, root yield, sucrose%, photosynthetic pigments (chlorophylls a, b and carotenoids), relative water content (RWC), leaf osmotic pressure (LOP) and the studied anatomical characters (thickness of mysophyll, thickness of midrib, thickness of palisade tissue, thickness of spongy tissue, average number of xylem vessels/vascular bundle, thickness of vascular bundle, thickness of collenchaymatous tissue and upper epidermis). Conclusively, this study indicates that, soaking seeds in GA3 solutions especially at 150 mg/L can decrease the effects of drought on growth and yield of sugar beet.
Sugar beet,GA3,anatomical characters,RWC,LOP,Chlorophyll
https://agro.journals.ekb.eg/article_8991.html
https://agro.journals.ekb.eg/article_8991_9477288cbfeafcb82092d5f379318100.pdf
National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology
Egyptian Journal of Agronomy
0379-3575
2357-0288
40
2
2018
08
01
Correlation, Path and Regression Analysis in Some Bread Wheat ( Triticum aestivum L) Genotypes under Normal Irrigation and Drought Conditions
133
144
EN
Hassan
Fouad
0000-0002-3102-6882
Department of Agronomy, Faculty of Agriculture, Minia University, Minia, Egypt
hassan.mostafa@mu.edu.eg
10.21608/agro.2018.3109.1097
THE OBJECTIVE of this study was to assess correlation, path and regression analysis in 39 F6 bread wheat (Triticum aestivum L) genotypes during two seasons, i.e., 2015/2016 (F7) and 2016/2017 (F8) under irrigation and drought stress conditions at Fac. Agric. Edu. Farm, Minia University, Egypt. A positive correlation was found between grain yield and each of the number of spikes/plant and number of grains/spike under the two conditions. Path analysis revealed high positive direct effects on grain yield/plant via the number of grains/spike (0.929) under irrigation and number of spikes/plant (0.973) under drought. The direct effect of 100-grain weight on grain yield/plant was positive under irrigation (0.649) and drought (0.260). The indirect effects of these traits were negative under the two conditions. Stepwise regression analysis revealed that three models no. 8, 9 and 10 were fitted for each environment. The model no. 8 included one trait; the number of grains/spike under irrigation and number of spikes/plant under drought. Its relative contributions in grain yield were 0.180 and 0.693 under irrigation and drought; respectively. The model no. 9 in the two environments included two traits; the number of grains/spike and number of spikes/plant, its relative contributions in grain yield/plant were 0.544 and 0.836 under normal and drought conditions, respectively. The model no. 10 included three traits number of grains/spike, number of spikes/plant and 100-grain weight, its relative contribution in grain yield/plant were 0.0.931 and 0.978 under normal and drought conditions, respectively. This model no. 10 is fit and superior to use in selection for grain yield/plant.
Bread wheat ( Triticum aestivum L),correlation,path,regression,Drought stress,stepwise
https://agro.journals.ekb.eg/article_8992.html
https://agro.journals.ekb.eg/article_8992_6b99573deafa678fd10786e4311272c4.pdf
National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology
Egyptian Journal of Agronomy
0379-3575
2357-0288
40
2
2018
08
01
Physiological Traits and Drought Tolerance Indices in Advanced Genotypes of Bread Wheat ( Triticum aestivum L)
145
154
EN
Hassan
Fouad
0000-0002-3102-6882
Department of Agronomy, Faculty of Agriculture, Minia University, Minia, Egypt
hassan.mostafa@mu.edu.eg
10.21608/agro.2018.3108.1096
TWO FIELD experiments were carried out at Fac. Agric. Edu. Farm, Minia University, Egypt, during the two successive seasons of 2015/2016 and 2016/2017 under irrigation and drought conditions. Thirty nine genotypes of bread wheat were evaluated to estimate physiological traits related to water stress, tolerance indices, and to determine the best drought tolerant genotypes. The combined analysis revealed significant differences for environments, genotypes, years, environments x genotypes and years x genotypes interactions for all studied traits. Under irrigation, three genotypes No. 39, No. 42 and No.68 were significantly higher than the better parent in excised leaf water retention and grain yield. Under drought stress condition, genotypes No. 13, No. 42 and No. 246 exceeded the better parent in relative water content, leaf water content, specific leaf weight and grain yield. Under normal irrigation, relative water content showed negative and significant (P≤0.01) correlation with leaf water loss (-0.86), with leaf area (-0.36), and positive correlation with grain yield (P≤005), while under drought stress, excised leaf water retention showed negative and significant (P≤0.01) correlation with leaf water loss (-0.85), and negative correlation with both of leaf area (-0.25) and grain yield. Ranking method indicated that genotypes No. 13, No.296 and No.379 were the most drought tolerant genotypes, while genotypes No. 1, No.74, No.95 and No.129 were the most sensitive to drought condition.
Drought stress,Excised leaf water retention,Relative water content,Leaf water loss,<i> Triticum aestivum </i> L
https://agro.journals.ekb.eg/article_9222.html
https://agro.journals.ekb.eg/article_9222_577a8d6e87cf9ea9f8b9438149e89151.pdf
National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology
Egyptian Journal of Agronomy
0379-3575
2357-0288
40
2
2018
08
01
Effect of Potassium Foliar Applications on Productivity and Quality of Mono-Cut Egyptian Clover under Saline Soil
155
163
EN
Zizy
Abbas
Forage Crops Res. Department, Field Crops Research Institute, Agricultural Research Center (ARC), Giza, Cairo, Egypt
zizyyuossef70@yahoo.com
A.M.
Awad
Soil Fertility and Plant Nutrition Department, Soil, Water and Environment Research Institute, Agricultural Research Center (ARC), Giza, Cairo, Egypt
10.21608/agro.2018.3122.1098
Several field and laboratory experiments were carried out to study the effect of different potassium (potassien) rates as foliar application on growth traits, yield and yield components of mono-cut Egyptian clover (variety Giza 1). Two field experiments were conducted at the Experimental Farm Station of El-Serw, Damietta Governorate, Mansoura, Agriculture Research Center (salt affected soil) and tow laboratory experiments at the Forage Crops Res. Depart., Field Crops Res. Inst., ARC, Giza, during 2015/2016 and 2016/2017 seasons. <br />A completely randomized blocks design with six replicates was used in the field experiments and a completely randomized design with three replicates was used in the laboratory experiments. Results revealed that all the levels of potassium foliar application treatments (0.5, 1 and 2L fad-1 of potassien) showed superiority over the control treatment (without foliar potassium). Foliar treatment with 2L fad-1 recorded the highest values of all studied growth traits, i.e, plant height, no.of branches plant-1, leaves/ stem ratio, fresh and dry forage yields compared with control. The maximum values of the above mentioned traits were 66.33cm, 5.33 no.of branches plant-1, 0.593%, 14.05ton fad-1 and 3.18ton fad-1, respectively. Moreover the highest number of head/m2, no. of seeds/head, the weight of 1000 seeds and seed yield kg fad-1 were obtained by increasing the concentration or rate of potassien application up to 2L fad-1. In addition potassien foliar applications lead to improving forages quality by increasing the content of N, P & K and protein and carbohydrate %. Results showed that application of potassien rates had a positive effects on germination %, shoot and radical lengths, dry seedling weight, seedling vigor.
Mono-cut clover,Potassien rates,Salt-affected soil,forage and seed yields,Chemical composition
https://agro.journals.ekb.eg/article_9223.html
https://agro.journals.ekb.eg/article_9223_48ef90f1c61bd292f43654705413a6e6.pdf
National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology
Egyptian Journal of Agronomy
0379-3575
2357-0288
40
2
2018
08
01
Effect of Growth Promoter Supplement on Yield and Grain Quality of Maize ( Zea mays L)
165
180
EN
Hashim
Abdel-Lattif
Agronomy Department, Faculty of Agriculture, Cairo University, Giza, Cairo, Egypt
hashemlatif@agr.cu.edu.eg
Ragab
Absy
0000-0002-0144-6675
Agronomy Department, Faculty of Agriculture, Cairo University, Giza, Cairo, Egypt
ragab.ibrahim@agr.cu.edu.eg
Mohamed
Atta
Agronomy Department, Faculty of Agriculture, Cairo University, Giza, Cairo, Egypt
mohamedatta@agr.cu.edu.eg
10.21608/agro.2018.3790.1104
GROWTH promoters or biostimulants have been called for the supplements that contain nutrients, amino acids and plant extracts. One of them would be taken into consideration to increase the production of plants is the growth promoter VIUSID agro. To study the effect of VIUSID agro on the maize grain yield (ton ha-1) as well as grain quality, two field experiments were carried out in the experimental field of Agric. Res. Stat., Fac. Agric., Cairo Univ., Giza, Egypt in 2015 and 2016 seasons.With this aim, five maize cultivars (Namely, the single cross hybrids SC-30k9, SC-110, SC-30k8, the three way cross hybrid TWC-310 and the open-pollinated composite Cairo-1) were evaluated under four dosages, i.e., 0.0, 0.96, 1.44 and 2.0L ha-1 of foliar spraying of theVIUSID agro. Means under the dosage of 0.96L ha-1 of theVIUSID agro significantly exceeded the control by 26.19% for grain yield ha-1 (GYH), 8.89% for grain protein percentage (GP%), 45.39% for protein yield/ha, 3.14% for grain oil percentage (GO%), 40.44% for oil yield ha-1 (OYH) and 33.29% for carbohydrate yield/ha. It was concluded that increasing maize yield ha-1and grain quality in the present investigation could be achieved by applying the low dosage (0.96L ha-1) of VIUSID agro.
Amino acids,bioactive compounds,biostimulants,Maize (Zea mays L),VIUSID agro
https://agro.journals.ekb.eg/article_10902.html
https://agro.journals.ekb.eg/article_10902_67390dcf2c65e11a9afa24c995b359fb.pdf
National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology
Egyptian Journal of Agronomy
0379-3575
2357-0288
40
2
2018
08
01
Effect of Corps Rotation and Sequence Weed Control Treatments on Weeds and Faba Bean Productivity
181
192
EN
Adel
Fakkar
Weed Central Lab, Agricultural Research Center, Giza, Cairo, Egypt
fakkar44@yahoo.com
Yasser
Mohamed
0000-0002-9026-4936
Agronomy Department Faculty of Agriculture, Alzhar University (Assiut Branch), Assiut, Egypt
yasserbeet@yahoo.com
10.21608/agro.2018.4159.1106
CROP rotation is thought to reduce weed density, hence preventing the domination of some weeds problem. Variance in weed population between cropping systems may be the direct result of crop rotation. Two rotation experiments in a long - term study were carried out at Shandaweel Res. St., Sohag Governorate in Upper Egypt from 2014/15, 2015/16 and 2016/17 winter seasons. The area used for agriculture has not changed over the three seasons. Plots were not changed in every treatment in the sense that all experimental pieces received the same treatment in the three seasons of summer and winter.<br />Results showed that of crop rotation system (Faba bean/maize/faba bean/maize) gave the height effect in decreased on number and weight of grassy, broad-leaved and total weeds and increased weight of pods, weight of seeds/plant, 100-seed weight and seed yield (arad/fad) compared with (Faba bean/peanut/faba bean/peanut) in seasons 2014/15,2015/16 and 2016/17, respectively. Gradually increased the weight of pods and seeds/plant, 100-seed weight and seed yield (arad/fad) from season to season using of herbicide or hand hoeing compared with control.<br />Significant positive correlation values were detected between the number and weight of all weeds spices in both seasons. A correlation value was negative between the number and weight of weeds and seed yield (ard/fad) and 100-seed weight but a correlation value was positive between yield and it’s components.<br />Economic evaluation of the results indicated that using crop rotation system (Faba bean/maize/faba bean/maize) gave the highest economic values in the average of three seasons for all economic evaluation.
crop rotation,weed control,Faba bean,Maize,Peanut Fusilade super Basagran,hand hoeing
https://agro.journals.ekb.eg/article_11942.html
https://agro.journals.ekb.eg/article_11942_b6e4a99193349be25d76ed69e43eb7b6.pdf