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Role of Zinc on Drought Tolerance in Some Wheat (Triticum aestivum L.) Cultivars under Reduced Soil Water 锌对部分小麦抗旱性的影响土壤水分减少下的栽培品种
IF 0.5 Pub Date : 2021-12-01 DOI: 10.21608/agro.2022.105221.1291
R. Mahdy, K. Farghali
Received 09/11/2021; Accepted 10/1/2022 DOI : 10.21608/agro.2022.105221.1291 ©2021 National Information and Documentation Center (NIDOC) involved in many biochemical pathways (Alloway, 2009; Cakmak et al., 2017). The presence of some micronutrients needed for plant growth may alleviate the effect of dehydration. Interestingly Zn, B, and Mn applications raise the resistance of plants to drought stress (Khan et al., 2004; Movahhedy-Dehnavy et al., 2009). Otherwise, drought stress has exerted a negative effect on relative water content of leaves (RWC), and durum wheat under water stress loses much more water than the bread wheat. Larbi et al. (2004), Akram (2011) and Keyvan (2010) indicated that increase in the intensity of drought stress decreased RWC, total chlorophyll and increased proline content. Also, Tale & Haddad (2011) stated that drought stress closes stomata, inhibits photosynthesis and damages the chlorophyll contents. Furthermore, Almeselmani et al. (2012) recorded reduction in all physiological traits, yield and yield component in D is a serious abiotic stress affects crop production in Egypt and worldwide. Two experiments were carried out under drought stress and normal irrigation during the seasons of 2018/19 and 2019/20 to study the effect of foliar application of Zn to alleviate drought stress. The soil texture is clay. The genetic materials were three Egyptian cultivars; Sakha 69, Giza 68 and Gemmieza 11. The levels of foliar spray of zinc oxide were 500ppm, 250 ppm, water and control (no treatment), sprayed two weeks before and at anthesis. Mean squares of the combined data was significant (P≤ 0.01) for Zn levels and for yield traits except for spike length. The differences among cultivars were significant (P≤ 0.01) except for yield under irrigation. This confirms the concept of “selection for yield under stress is better than under favorable environment”. The traits plant height (PH), number of spikes/plant (NS/P), biological yield/plant (BY/P), grain yield/plant (GY/P) and 100GW showed the best performance at the higher Zn level 500ppm. Water deficit exerted negative effects on RWC% and chlorophyll. The reduction % (the difference between irrigation and drought stress relative to irrigation performance) in all traits was the lowest at 500ppm of Zn and increased ascendingly by decreasing the Zn level. Sakha 69 significantly showed the best performance for PH, NS/P and BY/P under both, drought stress and normal irrigation. It could be concluded that Zn foliar application alleviated drought stress, and Sakha 69 was the most stable cultivar in GY/P and gave the best performance under drought stress.
收到09/11/2021;接受10/1/2022 DOI: 10.21608/agro.2022.105221.1291©2021国家信息文献中心(NIDOC)涉及许多生化途径(Alloway, 2009;Cakmak et al., 2017)。植物生长所需的一些微量元素的存在可以减轻脱水的影响。有趣的是,锌、B和锰的施用提高了植物对干旱胁迫的抗性(Khan等人,2004;Movahhedy-Dehnavy et al., 2009)。此外,干旱胁迫对叶片相对含水量(RWC)产生了负面影响,干旱胁迫下硬粒小麦的水分损失率明显高于面包小麦。Larbi et al.(2004)、Akram(2011)和Keyvan(2010)指出,干旱胁迫强度的增加降低了RWC、总叶绿素和脯氨酸含量。Tale & Haddad(2011)也指出,干旱胁迫关闭气孔,抑制光合作用,损害叶绿素含量。此外,Almeselmani等人(2012)记录了D的所有生理性状、产量和产量成分的减少,这是一种严重的非生物胁迫,影响埃及和全世界的作物生产。在2018/19和2019/20两季干旱胁迫和正常灌溉条件下,研究了叶面施锌缓解干旱胁迫的效果。土壤的质地是粘土。遗传物质为3个埃及栽培品种;萨哈69,吉萨68,吉米耶萨11。花前2周和花期喷施氧化锌,分别为500ppm、250ppm、水和对照(未处理)。除穗长外,锌水平和产量性状的均方差均极显著(P≤0.01)。除灌溉产量外,各品种间差异均极显著(P≤0.01)。这证实了“逆境条件下的产量选择优于有利环境”的概念。株高(PH)、穗数/株(NS/P)、生物产量/株(BY/P)、籽粒产量/株(GY/P)和100GW在高锌500ppm处理下表现最佳。水分亏缺对RWC%和叶绿素均有不利影响。各性状的降低率(灌溉和干旱胁迫相对于灌溉性能的差值)在500ppm Zn处理下最低,随Zn水平的降低而逐渐增大。在干旱胁迫和正常灌溉条件下,萨哈69在PH、NS/P和BY/P方面的表现均显著最佳。结果表明,叶面施锌缓解了干旱胁迫,萨哈69是干旱胁迫下土壤养分比最稳定、表现最好的品种。
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引用次数: 0
Possibility of Sugar Beet Production in Toshka Region. II- Effect of Water Stress on Some Sugar Beet Varieties 托什卡地区甜菜生产的可能性。水分胁迫对甜菜品种的影响
IF 0.5 Pub Date : 2021-12-01 DOI: 10.21608/agro.2022.102043.1286
A. Awadalla, A. Ahmed, M. Mohammad
In Egypt, the yearly national production of sugar, 2.28 million tons, fails to cover the consumption amounted to3.25 million tons (S. C. C., 2020). As an attempt to minimize this gap, it was necessary to expand the area planted with sugar beet in the newly reclaimed lands. This work was conducted to evaluate the performance of three beet varieties under water stress to find out the best variety and its proper water requirement to get the maximum root and sugar yields per unit area in Toshka zone. Maximizing sugar production is a national target through expansion in sugar beet cultivation in the newly reclaimed soils, the specific problems of newly reclaimed soils management in particular their low water holding capacity require using an efficient irrigation system such as controlled irrigation. This technique makes it possible to relate, under water shortage condsitions, the drought stress undergone by the sugar beet plants to possible decreases in the yield or quality. The performance of beet plants under controlled irrigation with respect to yield and its components was studied by many authors among them, Tognetti et al. (2002), TWO field experiments were carried out during 2016/2017 and 2017/2018 seasons at the agricultural experimental station farm of Water Studies & Research Complex (WSRC), National Water Research Center, located in Abu-Simbel, Toshka, at the most southern part of Egypt, about 1300 south from Cairo and 280 Km from Aswan (latitude of 22 o.49N, longitude of 28 o.58E) Aswan Governorate, Egypt. These trials aimed to find out the effect of water stress rates (60%, 80% and 100% of irrigation water requirements (IWR). on yield, yield components and quality of sugar beet varieties namely Oscar poly, Farida, and Universal. Randomized complete block design, in Strip Plots arrangement, with three replications was used.
在埃及,全国每年的糖产量为228万吨,但不能满足消费量为325万吨(S. C. C., 2020)。为了缩小这一差距,有必要在新开垦的土地上扩大种植甜菜的面积。本研究通过对3个甜菜品种在水分胁迫下的表现进行评价,找出Toshka地区获得最大单位面积根产量和糖产量的最佳品种及其适宜需水量。通过在新开垦的土壤中扩大甜菜种植,实现糖产量最大化是一个国家目标,新开垦土壤管理的具体问题,特别是其低持水量需要使用有效的灌溉系统,如控制灌溉。这种技术使得在缺水条件下,甜菜植株所遭受的干旱胁迫与产量或质量的可能下降有可能联系起来。包括Tognetti等(2002)在内的许多作者对控制灌溉条件下甜菜植株的产量及其组成进行了研究。在2016/2017和2017/2018季节,在位于埃及最南部Toshka Abu-Simbel的国家水研究中心水研究综合体(WSRC)的农业实验站农场进行了两次田间试验。埃及阿斯旺省,距开罗以南1300米,距阿斯旺280公里(北纬22.49度,东经28.58度)。这些试验旨在找出水分胁迫率(60%、80%和100%灌溉需水量)的影响。研究了Oscar poly、Farida和Universal三个甜菜品种的产量、产量构成和品质。随机完全区组设计,采用条形图排列,3个重复。
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引用次数: 0
Physicochemical and Phytotoxic Studies of Arena 7% OD Herbicide on Some Morphological Parameters of Common Wheat (Triticum aestivum L.) Arena 7% OD除草剂对普通小麦某些形态参数的理化及植物毒性研究
IF 0.5 Pub Date : 2021-11-30 DOI: 10.21608/agro.2021.95029.1279
Ramadan F. Hamaad, Zakia Elkhiat, N. Ibrahim
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引用次数: 1
The Development of Distinctive Multi-cut a New Alfalfa Variety “Naimat or GR-722” Performs Well in Salt-affected Soils 多段型紫花苜蓿新品种“Naimat or GR-722”的选育在盐渍化土壤中表现良好
IF 0.5 Pub Date : 2021-11-26 DOI: 10.21608/agro.2021.103228.1289
A. Jabbar, M. Zubair, Abdul Basit, A. Shah, R. Minhas, Amjad Hussain, Muhammad Aslam, G. Ahmad, Altab Khan, Muhammad Sultan Ali Buzmi
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引用次数: 1
Impact of Irrigation Water Quantities and Soil Mulching on Pearl Millet Performance under Heat Stress Conditions 热胁迫条件下灌溉水量和覆膜对珍珠粟生产性能的影响
IF 0.5 Pub Date : 2021-10-26 DOI: 10.21608/agro.2021.95157.1280
E. Salem, H. Shoman
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引用次数: 1
Optimizing Cowpea Productivity by Sowing Date and Plant Density to Mitigate Climatic Changes 通过播种日期和种植密度优化豇豆产量以减缓气候变化
IF 0.5 Pub Date : 2021-10-20 DOI: 10.21608/agro.2021.93864.1277
Elsayed E.A. Elsobky, H. Hassan
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引用次数: 2
Effects of Water Stress on Cotton (Gossypium spp.) Plants and Productivity 水分胁迫对棉花植株及产量的影响
IF 0.5 Pub Date : 2021-10-18 DOI: 10.21608/agro.2021.89343.1272
M. Rehman, A. Bakhsh, M. Zubair, M. Rehmani, Aqeel Shahzad, S. Nayab, M. Laeeq Khan, W. Anum, Rubina Akhtar, N. Kanwal, Nadia Manzoor, I. Ali
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引用次数: 1
Estimation of Combining Ability and Heterosis for Wheat Yield and Its Components under Water Stress Conditions 水分胁迫条件下小麦产量及其组成的配合力和杂种优势估计
IF 0.5 Pub Date : 2021-09-01 DOI: 10.21608/agro.2021.77971.1268
Marwa M. El Nahas, O. Ali
DROUGHT is a worldwide problem which controls the crop productivity. Six Egyptian bread wheat varieties were crossed in a 6x6 half diallel in 2018/19 season. Parents and their fifteen F1 crosses were evaluated under normal irrigation (N), mid water stress (MS) and severe water stress (SS) during 2019/20 in three field experiments. Results showed that the analysis of variance were significant for all the studied traits. The highest mean values were recorded under all irrigation treatments as well as the combined analysis with the crosses P1x P2, P1 x P3, P1 x P5, P2 x P3, P3 x P5 and P5 x P6 for grain yield per plant. Mean squares for both general (GCA) and specific (SCA) combining ability estimates were highly significant for all studied traits. GCA/SCA ratio was greater than unity for most traits. The parental P1 exhibited positive and significant GCA effects for number of kernels per spike, grain yield per spike and grain yield per plant. The highest desirable SCA effects were obtained with the crosses P3 x P5 and P4 x P5 for grain yield per plant under stresses conditions. Positive significant heterosis were detected by the crosses P1 x P3, P2 x P3, P3 x P5, P4 x P5 and P5 x P6 for number of spikes per plant, number of kernels per spike, grain yield per spike, 1000-grain weight and grain yield per plant at N, MS, SS conditions and the combined data.
干旱是一个世界性的问题,它控制着作物的生产力。2018/19年,六个埃及面包小麦品种在6x6半双列杂交中杂交。在2019/20年的三个田间试验中,在正常灌溉(N)、中等水分胁迫(MS)和严重水分胁迫(SS)条件下对亲本及其15个F1组合进行了评估。结果表明,方差分析对所有研究性状均具有显著性。在所有灌溉处理以及与杂交组合P1x P2、P1 x P3、P1 x P5、P2 x P3、P3 x P5和P5 x P6的单株产量的组合分析下,记录了最高的平均值。一般(GCA)和特异(SCA)配合力估计的均方对所有研究性状都具有高度显著性。大多数性状的GCA/SCA比值大于1。亲本P1对穗粒数、穗粒产量和单株产量表现出积极而显著的GCA效应。在胁迫条件下,杂交组合P3×P5和P4×P5的单株产量达到了最高的SCA效果。杂交组合P1×P3、P2×P3、P3×P5、P4×P5和P5×P6在N、MS、SS条件下的单株穗数、单株粒数、单株产量、1000粒重和单株产量以及组合数据均表现出正显著的杂种优势。
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引用次数: 0
Influence of Hydrogen Peroxide and Nanofertilizer on Rusts Development and Wheat Productivity 双氧水和纳米肥对小麦锈病发展及产量的影响
IF 0.5 Pub Date : 2021-09-01 DOI: 10.21608/agro.2021.87731.1271
Lamyaa A. Abd El-Rahman, R. Omara, M. Gad
Wheat (Triticum aestivum L.) is the most strategic cereal crop allover the world and Egypt. Egypt faces food shortage problems because of increment of population. Therefore, Egypt is considered one of the biggest importers of wheat all over the world. Great efforts are continually driven for increasing its productivity by means of horizontal and/or vertical planting to reduce hiatus between production and consumption.
小麦(Triticum aestivum L.)是世界和埃及最具战略意义的谷物作物。由于人口增加,埃及面临粮食短缺问题。因此,埃及被认为是世界上最大的小麦进口国之一。人们不断努力通过水平和/或垂直种植来提高生产力,以减少生产和消费之间的中断。
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引用次数: 1
Effect of Heating by Microwave Oven on Weeds Seed Germination in Imported Shipments 微波炉加热对进口货物中杂草种子萌发的影响
IF 0.5 Pub Date : 2021-08-12 DOI: 10.21608/agro.2021.77144.1259
Enas M. Kamel
Laboratory and wirehouse experiments were conducted in Weed Research Central Laboratory, Agricultural Research Center, Giza, Egypt to investigate the possibility of using microwave energy to prevent the germination of weed seeds and find applicable treatments which can completely devitalize quarantine weed seeds. The present work evaluated the effect of microwave on germination of six weed species: wild oats, darnel, white bursage, Giant ragweed, field bindweed and dodder and improvement of some traits of two imported crops soybean and wheat (oil percentage of soybean seeds and protein content of wheat grains), which were contaminated by these weed species. Results showed that microwave power and time required for preventing germination varied considerably among the species studied. Microwave power 80% for 15 minutes prevented completely germination percentage of wild oats and darnel and reduced germination percentage of field bindweed to 10%. The microwave power 50%, 15 minutes was enough to prevent seeds germination completely and weaken dooder quarantine. In regard to Giant ragweed and white bursage, under all microwave power treatments, there were no germination of these weeds. Microwave powers 50% for 10 minutes and 80% for 15 minutes had no effect on the oil percentage extracted from soybean seeds and protein content of wheat grains, respectively. The present results suggest clearly that the exposure to microwave can weaken quarantine weed seeds in imported soybean and wheat without injury of oil percentage of soybean seeds and protein content of wheat grains.
在埃及吉萨农业研究中心杂草研究中心实验室进行了实验室和温室实验,以研究使用微波能防止杂草种子发芽的可能性,并找到可以完全使检疫杂草种子失去活力的适用处理方法。本工作评价了微波对野生燕麦、牛蒡、白法氏囊草、巨豚草、田边草和菟丝子六种杂草发芽的影响,以及对两种进口作物大豆和小麦的某些性状(大豆种子含油率和小麦籽粒蛋白质含量)的改善作用。结果表明,阻止发芽所需的微波功率和时间在所研究的物种之间有很大差异。80%的微波功率持续15分钟,完全阻止了野生燕麦和达尔内尔的发芽率,并将田边草的发芽率降低到10%。50%,15分钟的微波功率足以完全阻止种子发芽,并削弱涂鸦者的隔离。在所有微波功率处理下,对于巨型豚草和白色法氏囊,这些杂草都没有发芽。50%的微波功率10分钟和80%的微波功率15分钟对大豆种子的含油率和小麦籽粒的蛋白质含量分别没有影响。研究结果表明,微波辐照可以削弱进口大豆和小麦中的检疫杂草种子,而不会损害大豆种子的含油率和小麦籽粒的蛋白质含量。
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引用次数: 0
期刊
Egyptian Journal of Agronomy
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