Mansoura University, Faculty of AgricultureJournal of Plant Production2090-36699920180901Siderophore Production by Rhizosphere Inhabiting Bacteria and Fungi7177213639510.21608/jpp.2018.36395ENY. OsmanBotany Department, Faculty of Science, Mansoura University, Mansoura 35516, EgyptA. M.MowafyBotany Department, Faculty of Science, Mansoura University, Mansoura 35516, EgyptA. S.GebreilBotany Department, Faculty of Science, Mansoura University, Mansoura 35516, EgyptS. M.HamedBotany Department, Faculty of Science, Mansoura University, Mansoura 35516, EgyptJournal Article20180820The production of siderophores is greater in rhizosphere inhabiting fungi and bacteria. The present work was designed to isolate the rhizosphere inhabiting bacteria and fungi from the rhizosphere of <em>Phaseolus Vulgaris, </em><em>Pisum sativum</em>, <em>Vicia faba</em> and <em>Alfa alfa</em>. The obtained isolates has been screened for siderophores production using Chrome Azurol Sulfonate assay (CAS). The highest siderophore producer bacterium and fungus has been molecularly identified as <em>Bacillus </em>MG214652 and<em>Aspergillus niger</em> MH844535 respectively. They were able to produce 70.4% and 87% units of siderophore respectively. <em>Bacillus </em>MG214652 siderophores was characterized as catecholate type with maximum absorbance at 495 nm. <em>Aspergillus niger</em> MH844535 siderophore was characterized as hydroxymate type with maximum absorbance at 450 nm. Mansoura University, Faculty of AgricultureJournal of Plant Production2090-36699920180901Combining Ability and Mean Performance of Some New Inbred Lines of Yellow Maize Through Line × Tester Method7237323639610.21608/jpp.2018.36396ENM. S.SultanAgronomy Department, Faculty of Agriculture , Mansoura University, Egypt .S. E.SadekMaize Research Department , Field Croup Institute , Agriculture Research Center, EgyptM. A.Abdel MoneamAgronomy Department, Faculty of Agriculture , Mansoura University, EgyptM. S.ShalofMaize Research Department , Field Croup Institute , Agriculture Research Center, EgyptJournal Article20180823In Egypt, there are several maize production constraints, among which shortage of improved varieties is the major one. The objective of this study was to observe the mean performance of crosses and estimate combining abilities for grain yield and other agronomic traits in nine maize inbred lines and three testers using Line × Tester mating design. 27 yellow single crosses , 9 inbred lines , three testers and two standard checks (SC162 and SC168) were evaluated at two locations (Gemmeiza and Mallawy) under two density (24000 plant /fed and 30000 plant /fed). Analyses of variances showed significant mean squares for studied traits. Lines , tester and hybrids mean squares were highly significant and significant at combined data over two densities. Among the crosses, P<sub>1 </sub>× Gm 174 , P<sub>6</sub> × Gm 1021 , P<sub>7</sub> × Gm 1021 and P<sub>8</sub> × Gm 1021 highest grain yield mean performance and highly significant and significant in studied traits at combined data over both densities and these crosses may be useful for improving grain yield of maize. GCA effects, Inbred lines P<sub>6</sub><strong> ,</strong> P<sub>8</sub> , P<sub>2</sub><strong> ,</strong> P<sub>7</sub><strong>,</strong> Gm 174 andGm1021 had significant and highly significant positive GCA effects and were the best general combiners for grain yield, and hence were promising parents for hybrids as well as for inclusion in breeding programs for yield improvement. Inbred line Gm 1021 could be considered as a good general combiner for earliness and parental inbred lines P<sub>1</sub> , P<sub>4</sub> and Gm 1002 could be considered as a good general combiners for lateness for day to 50% tasseling, indicating that the line Gm 1021had general combinations that can enhance early maturity. P<sub>1</sub>×Gm 174 , P<sub>2</sub>×Gm 1002<strong> ,</strong> P<sub>3</sub>×Gm 1002<strong>,</strong> P<sub>4</sub>×Gm 174, P<sub>5</sub>×Gm 1021 , P<sub>6 </sub>×Gm 1021, P<sub>7</sub>×Gm 1002 and P<sub>8</sub>×Gm 1002 had highly significant and significant positive SCA effects for grain yield trait<strong>.</strong> it could be concluded that the parental inbred line for that crosses could made themselves recombination's. The information of GCA and SCA effects for grain yield is very useful for maize breeders to determine which maize line should be selected to improve local lines and which parental lines should be used for making hybrids with greater grain yields.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-36699920180908Effect of Some Mineral and Bio Fertilization Treatments on Yield and Yield Components of Bread Wheat Under Two Seeding Rates7337383639710.21608/jpp.2018.36397ENE. A.El-MetwallyAgronomy Dep., Fac. Agric., Cairo Univ., EgyptM. E. R.MekkeiAgronomy Dep., Fac. Agric., Cairo Univ., EgyptR. M.Abd El-SalamAgronomy Dep., Fac. Agric., Cairo Univ., EgyptH. M. Abo ShamaAbo ShamaAgronomist in Private Sector, Cairo, EgyptJournal Article20180830Two field experiments were carried out during 2013/2014 and 2014/2015 winter seasons at Agric. Res. Stat., Fac. Agric., Cairo Univ. Giza, Egypt to study the effect of two seeding rates i.e.50 and 65 kg seed/ faddan (4200 m<sup>2</sup>) and seven treatments of N, P and K fertilizers with or without Cerealin inoculation on wheat growth, grain yield and its components. These seven treatments were T1( 0 - 0 - 0 NPK ), T<sub>2 </sub>(50 - 30 - 24 NPK), T<sub>3</sub> (65 - 37.5 - 36 NPK), T<sub>4 </sub>( 80 - 45 - 48 NPK), T<sub>5 </sub>( T<sub>2</sub> + Cerealin), T<sub>6 </sub>( T<sub>3</sub> + Cerealin), and T<sub>7 </sub>(T<sub>4</sub> + Cerealin). A split plot design in randomized complete blocks arrangement with three replications was used. Seeding rates were randomly assigned for the main plots while, fertilizer treatments were randomly arranged for the sub plots. The obtained results showed that seeding rates had no significant effect on all yield attributes except, number of shoots m<sup>-2</sup>, number of grains spikes<sup>-1</sup> in 2013/2014 season, number of shoots m<sup>-2</sup>, number of spikes m<sup>- 2</sup>, straw yield /faddan and harvest index in 2013/2014 season. Mineral NPK fertilizers with bio-fertilizer (Cerealin) had significant effect on yield and its components except, spike length in both seasons. Grain, straw and biological yields and its attributes i.e. plant height, number of shoots m<sup>-2</sup>, number of spikes m<sup>-2</sup>, number of grains spike<sup>-1</sup>, grains weight spike<sup>-1</sup>, 1000-grain weight were significantly increased by adding bio-fertilizer compared to none adding in both seasons, respectively. Adding 75% of recommended dose of NPK mineral fertilizer combined with Cerealin inoculation resulted in significant increment in plant height, number of shoots m<sup>-2</sup>, number of spikes m<sup>-2</sup>, number of grains spike<sup>-1</sup>, grains weight spike<sup>-1</sup>, 1000-grain weight, grain, straw and biological yields as well as harvest index compared with other combination treatments. The interaction between seeding rate and fertilizer treatments was significant for all characters under study in both seasons. The highest grain yield (4.31 and 4.07 ton / faddan ) in both seasons, respectively was recorded by sowing 65 kg seed faddan<sup>-1</sup> with adding 65 kg N + 37.5 kg P<sub>2</sub>O<sub>5</sub> + 36 kg K<sub>2</sub>O + Cerealin inoculation compared with other tested treatments.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-36699920180908Growth and Yield of Broccoli (Brassica oleracea L. Var. Corato) as affected by humic acid application7397413639810.21608/jpp.2018.36398ENI. Al-jafHawallUniv.of Sulaimani, College of Agric. Sciences, Agribusiness and Rural Development Department.Sumaia M.RaheemUniv.of Sulaimani, College of Agric. Sciences, Agribusiness and Rural Development Department.Ghuncha K.TofiqUniversity of Sulaimani, College of Agricultural Sciences, Horticulture Department.Journal Article20180830The present study was conducted during the 2016-2017 at University of Sulaimani, College of Agricultural Sciences. This investigation aimed to study the effect of humic acid (foliar application) with three levels; 2.5, 3.5 and 4.5 ml/L and three levels of (soil application) ; 1.5, 2.5 and 3.5 ml/L, compared with the control (spray with water only) on growth and yield components of broccoli (<em>Brassica oleracea</em> L. var. corato). After 2 weeks from transplanting, the humic acid was added four times to the plants. The experimental design was used is Random Complete Block Design (RCBD), with three replicates was applied and the means compared according to Dunken at 0.05 level. The obtained results showed that soil application in the rate of (1.5 ml/L) achieved the highest results of Plant height (53 cm), fresh weight of main head (403.5 gm) and total yield (50 ton/ha). On the other hand, the highest value of the main head diameter was obtained by foliar application of 2.5 ml/L. In addition, the highest value of TSS was recorded when humic acid as a foliar spray at a rate of 3.5 ml/L, while the amount of NPK were not significantly affected by applications of different doses of humic acid. These results imply that soil application of humic acid at the rate of 1.5 ml/L could be recommended to use in the agricultural field for producing optimum yields.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-36699920180909Improving some Economical Traits of Local Okra (Abelmoschus esculentus L. Moench) Through Selection and Inbreeding7437483639910.21608/jpp.2018.36399ENE. A.IbrahimCross pollinated Vegetable crops Dept., Horticulture Research Institute, GizaM. Y.AbedCross pollinated Vegetable crops Dept., Horticulture Research Institute, GizaA. M.MoghazyVegetable Seed Technology Dept., Horticulture Research Institute, GizaJournal Article20180830This investigation aimed to genetic improvement of local okra (cv. Balady) plants and to develop superior inbreds through selection and inbreeding. Three cycles of selection were employed in three consecutive seasons of 2013, 2014, 2015 and the developed inbreds were evaluated in summer season of 2016 with the local variety. The analysis of variance parameters showed a great variation for all studied traits within the cv. Balady. Therefore, the selection and inbreeding procedure resulted in isolation of twelve inbreds characterized by different horticultural traits. These inbreds showed uniform plants within each genotype. Highly significant variations were obtained for all the studied traits. On the basis of mean performance, the results of evaluation trial showed that the inbreds L5 and L8 were the earliest in flowering time. The selected inbreds L3, L6 and and L10 significantly exhibited the largest means of plant height. The developed inbreds significantly exceeded the cv. Balady for yield/plant and total yield, except for L8, L9 and L11. The selected inbreds L5 and L8 exhibited the largest means of pod length and pod weight and they surpassed the Balady pod measurements. The magnitudes of genetic variation were close to the magnitudes of phenotypic variation for all traits, indicating that the predomination of genetic component in the expression of the studied traits. There are positive and significant correlations between yield/plant and plant height, number of pods/plant and total yield/fed which prove the relative importance of the foregoing traits for yield improvement through selection of these traits. It is recommended to use the L3, L10, L4 and L7 inbreds for maximizing yield production Therefore, the foregoing inbreds are considered as promising genotypes suitable for growing under local environmental conditions.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-36699920180913Evaluation of a New Thornless Strain of Mexican Lime (Citrus aurantifolia, Swingle) Under Kaferelsheikh Governorate Conditions, Egypt7497563640010.21608/jpp.2018.36400ENM. M. S.Abo El-EnienCitrus Research Department, Hort. Res. Instit. ARC. Giza, EgyptA. M. A.KhederCitrus Research Department, Hort. Res. Instit. ARC. Giza, EgyptJournal Article20180901This work has been carried out to evaluate a new thornless strain of lime trees as compared with Mexican lime (local or Balady cultivar) planted at 5x5m and grown in clay soil at a private orchard at Kaferelsheikh Governorate during 2015 and 2016 seasons. The evaluation involved growth, flowering, seeds, yield and fruit parameters. The new strain revealed morphological characteristics distinct from the local cultivars but it had a small size of canopy which may be reflected in increasing the number of planted trees/ feddan. Fruits of the selected strain is distinguished by high percentage of juice acidity (7.2-8.2%), juice weight % (47.8-48.9%) over the local cultivar. Also, it was characterized as thornless trees with less seed number /fruit (2.06-2.23). DNA fingerprint was performed using RAPD technique for the molecular characterization. RAPD analyses exhibited a total of 42 bands with an average of 10.4 bands / primer when six primers were used. The polymorphism percentage (18%) was observed between the new strain and Mexican lime. The new lime strain is considered as a valuable genetic material for Egyptian citriculture industry.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-36699920180922Role of some growth Characters in Improving the Drought Tolerance in Rice.7577643640110.21608/jpp.2018.36401ENA. A.El-SayedAgronomy Department, Faculty of Agriculture, Kafr El-Sheikh University, EgyptM. A.El- HityAgronomy Department, Faculty of Agriculture, Kafr El-Sheikh University, EgyptA. A.Abd- AllahRice Research and Training Center, Field Crops Institute, ARC, EgyptH. E.Abd-ellaAgronomy Department, Faculty of Agriculture, Kafr El-Sheikh University, EgyptJournal Article20180913The present investigation was carried out at the farm of the of Rice Research and Training Center, Sakha, Kafr El-Sheikh, Egypt, during 2014 and 2015 seasons to evaluate some growth and yield parameters in rice by using eight rice varieties under normal and drought conditions. The results indicated that, the parents Sakha 106, Giza178, Nerica4 and WAB880 and the crosses (Sakha106 × Giza177), (Sakha106 x Sakha102), (Giza178 × Giza177), (WAB880 × Nerica4) and (IRAT112 × Nerica4) were found to have the most desirable mean values under the two environments and their combined data. Genotypes, parents and the crosses mean squares and their interactions with environments were found to be highly significant for all studied characters. The most pronounced useful heterosis effects relative to the better parents for all characters were detected in the crosses (Sakha106× Giza 177), (IRAT170 × Nerica4),( Giza 177 × IRAT112),( Giza177 × Nerica4) and (Sakha102 × IRAT112) under the two environments and their combined data. Over dominance was detected in most crosses for plant height, number of tillers / plant, panicle length, relative water content and grain yield/plant. The values of potence ratio was less than unity in most crosses for days to heading, chlorophyll content, flag leaf area, flag leaf angle and leaf rolling. The results showed also high genetic variance for days to heading, plant height and flag leaf angle. However moderate values were obtained for chlorophyll content, flag leaf area and grain yield / plant, and low estimates of number of tiller/ plant, relative water content, panicle length and leaf rolling. High heritability values had been obtained for plant height, chlorophyll content, flag leaf area, flag leaf angle and grain yield / plant. The results obtained here indicates the relative importance of physiological parameters such as chlorophyll content, flag leaf area, flag leaf angle, relative water content and leaf rolling as selection criteria for drought tolerance. Also, the existence of significant amounts of genetic variation among the tested materials suggests their potential in breeding for water deficit tolerant rice genotypes.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-36699920180930Stability and Performance Analysis for Grain Sorghum Hybrids and ther Parental Lines7657743640210.21608/jpp.2018.36402ENM. E. M.EL- SagheerGrain sorghum Dept., Field Crops Res. Institute Agricultural Research Center, EgyptA. A.TagGrain sorghum Dept., Field Crops Res. Institute Agricultural Research Center, EgyptE. M.HusseinGrain sorghum Dept., Field Crops Res. Institute Agricultural Research Center, EgyptJournal Article20180922This investigation aimed to study the stability and performance of 30 sorghum genotypes across 8 environments. Twenty grain sorghum crosses and five introduced cytoplasmic male sterile lines (CMS-lines), four restorer lines (R-lines) and hybrid H-305 as the check were evaluated at eight environments i.e.; two years (2016 and 2017), two locations (Shandaweel Agric. Res. Station, Sohag Governorate and Arab El-Awamer Agric. Res. Station, Assiut Governorate ) and two planting distances 20 (D<sub>1</sub>) and 15 (D<sub>2</sub>) cm between hills.The combined analysis of variance of 30 genotypes over eight environments appear highly significant differences among genotypes and environments for all studied traits.Moreover, the genotypes × environments interaction variance was also highly significant for all the studied traits, evidence that genotypes responded differently to environmental factors. Most crosses were earlier and heavier in 1000 grains weight, taller and higher in grain yield per plant than best parents over eight environments. In addition, decreasing planting distances from 20 cm to 15 cm decline in plant height,1000 grains weight and grain yield/plant. While, decreasing planting distances from 20 cm to 15 cm led to increasing in days to 50% flowering. The joint regression analysis showed highly significant differences between genotypes and between environments, as well as significant genotype x environment interactions, indicating differential responses to changes in environment for the studied traits. The G × E interactions were linear functions to the environment, which were significant for all studied traits, except plant height. The stability parameters (b<sub>i</sub> and s<sup>2</sup>d) for grain yield per plantshowed that the genotypes varied in their (b<sub>i</sub>) values as well as S<sup>2</sup>d.It could be noticed that the regression coefficient (b<sub>i</sub>) for genotypes (A SH-21×R SH-76), (A SH-16×R SH-76), (A SH-10×R SH-10), (A SH-16×R SH-10), (A SH-10×R SH-37), (A SH-14×R SH-37), (A SH-21× ICSR-92003), (A SH-28×ICSR-92003) and (R-SH-10) were insignificant from unity and the deviation from regression (S<sup>2</sup>di) were insignificant from zero indicating that these genotypes considered to be stable for grain yield per plant. Seven genotypes had significant higher grain yield per plant than the grand mean (A SH-21×R SH-76), (A SH-10×R SH-10), (A SH-16×R SH-10), (A SH-10×R SH-37), (A SH-14×R SH-37), (A SH-21× ICSR-92003) and (A SH-28×ICSR-92003).