Effect Of Zinc Application Research Articles

Effect of zinc application on growth, yield and grain quality of wheat (Triticum aestivum L.)

Effect of zinc application on growth, yield and grain quality of wheat (Triticum aestivum L.)

Effect of Zinc Applications on the Productivity of Thompson Seedless Grapevines

Effect of Zinc Applications on the Productivity of Thompson Seedless Grapevines

The effect of zinc application on growth and alleviating shoot concentration of cadmium in durum wheat plant growth under conditions of salt and cadmium stress

A study was conducted in a greenhouse to investigate the effect of the combination of cadmium (Cd) and salinity (NaCl) stress in zinc (Zn) deficiency on growth, Cd accumulation in durum wheat (Triticum turgidum L. durum, cv. Balcali-2000), and micro (Zn, Fe, Cu, Mn) minerals differing in salt tolerance. The negative effects of Cd and NaCl stress on plant growth and Cd accumulation detected to alleviate Cd uptake on wheat growth increasing zinc application. The results revealed that Cd, NaCl and their combined stresses reduced shoots dry matter and Cd concentration in shoots increased compared to control pots. In increasing Cd and NaCl treatments, increasing Zn application significantly decreased the Cd concentration in shoot. In particularly, the decrease in Cd concentration was more noticeable with the improvement of Zn nutrition of plants at low doses of NaCl and Cd. The effect of increasing zinc treatments on reducing Cd accumulation decreased to slightly at high doses of Cd and NaCl. According to the results it can be suggested that Zn application to soils with low Cd content and medium salinity can be reduce Cd uptake by durum wheat.

Effect of zinc application on yield, nutrients uptake and biochemical properties of rice under Inceptisols

A field experiment was conducted in a randomized block design at Regional Agricultural Research Station, Karjat during kharif 2016-2019 to study the effect of zinc on soil fertility, yield, nutrients uptake and biochemical properties of rice under Inceptisols. Results revealed that the grain (50.65 q ha-1) and straw (56.74 q ha-1) yield of rice was significantly improved with application of zinc in the form of zinc sulphate @ 15 kg ha-1 at the time of transplanting through soil application (T7) which was better than foliar spray and root dipping methods. Significantly highest values of DTPA-extractable Zn (0.45 mg kg-1) and SO4-S (32.40 kg ha-1) were registered in the treatment T8. The zinc supplied plots led to significant enhancement in total N (93.38 kg ha-1), P (15.55 kg ha-1), K (96.80 kg ha-1) and S (35.54 kg ha-1) uptake in the treatment T7 and Zn (183.40 g ha-1) in the treatment T8. The treatment T7 showed higher hulling (74.28%), milling (63.32%), gel consistency (81mm), alkali spreading value (4.0) as well as the head rice recovery (57.80%), protein (8.96%) and amylose (24.40%) content which was acceptable.Overall, Zn-fertilization assumes great significance in improving soil properties, productivity and quality of rice.

Effect of Zinc Application on Growth and Yield of Summer Maize (Zea mays)

A field experiment was conducted at the Instructional-cum-Research (ICR) Farm, Assam Agricultural University, Jorhat during the summer season of 2019 to find out the effect of zinc on growth and yield through soil and foliar application. The experiment consisted of nine treatments viz., 0 kg/ha ZnSO4 (Control), 10 kg/ha ZnSO4 soil application, 20 kg/ha ZnSO4 soil application, 0.5% ZnSO4 foliar spray at 25 DAS, 0.5% ZnSO4 foliar spray at 25 DAS and 45 DAS, 10 kg/ha ZnSO4 ­soil application + 0.5% ZnSO4 foliar spray at 25 DAS, 10 kg/ha ZnSO4 ­soil application + 0.5% ZnSO4 foliar spray at 25 DAS and 45 DAS, 20 kg/ha ZnSO4 ­soil application + 0.5% ZnSO4 foliar spray at 25 DAS and 20 kg/ha ZnSO4 ­soil application + 0.5% ZnSO4 foliar spray at 25 DAS and 45 DAS. The treatments were laid out in Randomized Block Design (RBD) and replicated thrice. The soil of the experimental site was sandy loam in texture, acidic in reaction (pH 5.4), medium in organic carbon (0.64%), low in available N (198.04 kg/ha), medium in available P2O5 (24.98kg/ha), low in available K2O (187.30 kg/ha) and low in available zinc (0.56 mg/kg). Experimental findings revealed that growth attributing characters like plant height was recorded in the combined application of 20 kg/ha ZnSO4 ­soil application + 0.5% ZnSO4 foliar spray at 25 DAS and 45 DAS. The Leaf Area Index (LAI) and yield attributing characters like weight of the cob with and without husk, number of grain rows per cob, number of grains per row, number of grains per cob as well as grain yield (43.05 q/ha) were recorded the highest in the combined application of 20 kg/ha ZnSO4 soil application + 0.5% ZnSO4 foliar spray at 25 DAS and 45 DAS which was at par with the combined application of 20 kg/ha ZnSO4 soil application + 0.5% ZnSO4 foliar spray at 25 DAS.

Effect of Zinc Application on Maize Productivity and Eukaryotic Microorganism’s Diversity in a Newly Cultivated Field

Effect of Zinc Application on Maize Productivity and Eukaryotic Microorganism’s Diversity in a Newly Cultivated Field

Effects of Zinc Application on Some Important Yield and Quality Characteristics of Coriander (Coriandrum sativum L.)

In this study, the effects of zinc application on the yield and quality characteristics of coriander was investigated. The experiments were conducted in randomized blocks split plots experimental design with 4 replications. In the experiment, coriander cultivars (Arslan and Gürbüz) were placed in the main plots and zinc doses (Control, 200, 400, 800 g da-1) were placed in the subplots. In the study, cultivar x zinc interaction was significant in the number of umbel per plant and essential oil content; zinc treatments were found to be significant in the number of branches per plant, biological and fruit yield, essential and crude oil contents; cultivars were significant in thousand fruit weight and harvest index. In this study, essential oil content varied between 0.40-0.55% and crude oil content varied between 10.8-14.6%. In essential oil composition analysis, linalool was the main component, while in fatty acid composition analysis petroselinic acid was determined as the main component. At the end of the study, it was determined that 800 g da-1 zinc dose of Arslan cultivar was appropriate in terms of fruit yield. Also, the 200 g da-1 zinc dose of Gürbüz cultivar and the 800 g da-1 zinc dose of Arslan cultivar had the highest values in terms of linalool and petroselinic acid ratios respectively.

Effects of zinc application on the growth and photosynthetic characteristics of pecan at the seedling stage.

Pecan (Carya illinoinensis) is sensitive to Zn, which is involved in basic physiological and biochemical processes. To explore the growth and physiology of pecan in response to Zn application, we used 1-year-old annual grafted seedlings (Pawnee) and applied four concentrations of Zn fertilizer (0.05, 0.10, 0.20 and 0.40g·plant-1 ); a control (CK; no Zn fertilization) was also included. The growth characteristics, anatomical structure of the leaves and photosynthesis were assessed. Compared with the CK, photosynthesis and chlorophyll (Chl) fluorescence parameters, leaf area and leaf structure significantly increased at Zn concentrations of 0.05 and 0.10g·plant-1 . In addition, growth of pecan at the seedling stage increased in response to moderate Zn application. In contrast, treatment with 0.20 and 0.40g·Zn·plant-1 dramatically decreased these physiological indices and inhibited pecan growth. The results show that moderate soil Zn application promotes pecan growth and development by increasing photosynthesis. However excess Zn concentrations were not conducive to seedling growth. The concentration of 0.1g·Zn·plant-1 was best when considering long-term soil Zn applications, providing a theoretical foundation for microelement management of pecan.

Growth and Yield of Sweetcorn as Influenced by Zinc Fertilization

In order to investigate the effect of zinc nutrition on growth, yield, and quality parameters of sweetcorn, a field experiment comprising of nine treatments with three replications was carried out in Randomised Block Design during Kharif, season 2020 on sandy clay soils of Agricultural College Farm, Bapatla. The analysis of variance showed a significant effect of zinc application on growth and yield parameters. The detailed results of the study showed that among the various zinc fortification treatments, RDF + Zn EDTA @ 10 kg ha-1 (Soil) + Nano ZnO @ 250 ppm at 20 & 40 DAS (Foliar spray) registered superior plant growth characters like plant height at harvest (214.4 cm) leaf area index at harvest (2.94) and dry matter accumulation at harvest (9903 kg ha-1). The yield parameters like no. of seed rows per cob (16.84), no. of seeds per row (32.57), green cob yield (12,638 kg ha-1), and green fodder yield (19,674 kg ha-1) were maximum with RDF + Zn EDTA @ 10 kg ha-1 (Soil) + Nano ZnO @ 250 ppm at 20 & 40 DAS (Foliar spray) which was significantly superior over rest of the treatments whereas lower growth and yield was noticed with RDF alone.

Change in plant densities combined with zinc application affects rapeseed seed oil and fatty acid composition

In order to investigate the effect of zinc application on qualitative characteristics of rapeseed cultivars in different plant densities, a factorial split-plot experiment was carried out based on randomized complete block design with three replications for two cropping years (2014–2016) in Karaj, Iran. In this experiment, plant density at three levels (40, 60, and 80 plants m−2), zinc application at two levels (0 and 0.3% at pod formation stage) as factorial in main plots and six rapeseed cultivars, including GKH3705, GKH2624, GKH0224, GK-Gabriella, Neptune, and Elvis were assigned to sub-plots. The interaction effect of plant density × Zn × cultivar on oil yield, oleic acid, linolenic acid, linoleic acid, palmitic acid, erucic acid, and glucosinolate content of seeds and interaction effect of plant density × cultivar on oil percentage was significant at 1% level. According to the results, all the tested cultivars showed a positive response to zinc application on different plant densities, especially the density of 40 plants m−2. GK-Gabriella cultivar at density of 40 plants m−2 and under zinc application had the highest oil yield and the highest content of oleic, linoleic, and palmitic fatty acids. Moreover, having low and standard erucic acid and glucosinolate, this cultivar is recommended for canola production.

Response of Potato to Zinc Application in Eastern Indo-Gangetic Plains of India

A field experiment was conducted during two consecutive years of 2015-16 and 2016-17 at Central Potato Research Station, Patna with objective to evaluate theresponse of zinc on potato tuber yield. Significant effect of zinc application was not noticed on plant emergence and plant height of crop at 30 days after planting. However, higher plant height was recorded in the plot which received the zinc as compare to without zinc application. Significant difference in plant height was observed at later stages of crop due to application of zinc at the rate of 6.0 kg/ha along with recommended dose of fertilizers. Similarly, dry matter yield of potato tubers was also recorded consequently higher due to application of higher doses of zinc. Tuber grades of 0-25g and 25-50g were found non-significant irrespective of doses of zinc application in potato. Significant variation in medium and large size tuber yield were recorded due to application of zinc @ 6 kg/ha over without zinc application. About 18.1% increase in marketable tuber yield of potato was found due to application of zinc @ 6.0 kg/ha as compare to without zinc application. About11.3% and 13.7% increase in the total tuber yield of potato was observed due to application of zinc @ 4.5 and 6.0 kg/ha, respectively over without zinc application. However, no significant variation in pooled yield was found with application of zinc up to 3.0 kg/ha over without zinc application. The highest net return (Rs. 36.0×103/ha) and net benefit cost ratio (2.52) was recorded due to application of zinc @ 6.0 kg/ha as compare to without zinc. Application of zinc @ 6.0 kg/ha along with recommended dose of NPK may be found more beneficial for potato cultivation under Eastern Indo-Gangetic plains of India.

Effect of zinc application on quality of wheat grain (Triticum aestivum L.)

In plants, zinc plays a vital role as a catalytical, structural and regulatory co-factor of many enzyme reactions. Zinc is necessary for the metabolism of carbohydrates, protein synthesis, the biosynthesis of growth hormones, in particular of indole acetic acid and the maintenance of the integrity of cell membranes. The deficiency symptoms first appears on young leaves as zinc is an immobile nutrient in plants. Zinc deficient leaves remains small with extended necrotic spots and interveinal chlorosis on the upper leaf surfaces. Zinc deficiency is major problem in cereal crops. Therefore, zinc agronomic fortification of wheat and other cereal crops is being urgently addressed and highly prioritized as a research topic. Increasing the zinc content of food crop resulting in better crop production is an important global challenge. A pot culture study entitled “Agronomic fortification of wheat as influenced by graded levels of zinc” was conducted during rabi 2017-2018 at Department of Soil Science and Agricultural Chemistry. Dr. Panjabrao Deshmukh Krishi Vidhyapeeth, Akola. The significantly highest test weight, carbohydrates and protein content were observed in the treatment of soil application of RDF + ZnSO4 @ 30 kg ha-1. It is concluded that the soil application of ZnSO4 @ 30 Kg ha-1 + RDF (80:40:40 kg ha-1 N, P2O5, K2O) at the time of sowing recorded highest wheat grain quality viz test weight, carbohydrates and protein content.

Effect of zinc application on water content and photosynthetic pigments of mungbean (Vigna radiata L.) under water stress

A field experiment was conducted during rabi season of 2017-18 at agricultural college farm, Bapatla to investigate the effect of seed pretreatment and foliar application of zinc on relative water content (RWC) and photosynthetic pigments in mungbean under moisture stress, in a split plot design with three replications. The treatments comprised of two main treatments viz., no stress i.e. control (M0) and stress from flowering stage (i.e. from 30 DAS) up to harvest (M1) and seven sub-treatments viz., no zinc application (S0), seed treatment with 0.05% and 0.075% ZnSO4 solutions for 5 hrs before sowing (S1 and S2), foliar spray of 300, 400 and 500 ppm ZnSO4 at 30 DAS (S3, S4 and S5) and water spray at 30 DAS (S6). The results of the study revealed that plants that were subjected to water stress from flowering stage decreased the RWC, total chlorophyll and carotenoid contents by 10.0, 7.5 and 12.6 per cent, respectively, over control plants. Among zinc treatments, Zinc foliar spray @ 500 ppm at 30 DAS increased the RWC, total chlorophyll and carotenoid contents by 8.1, 10.2 and 6.1 per cent respectively, over untreated plants. It can be concluded that the use of zinc spray @ 500 ppm at 30 DAS counteracted the negative effects of water stress on mungbean by maintaining high water potential and by actively synthesizing the photosynthetic pigments.

The effect of zinc application on annual ryegrass (Lolium multiflorum) under drought stress

The effect of zinc application on annual ryegrass (Lolium multiflorum) under drought stress

Effect of zinc application on water content and photosynthetic pigments of mungbean (Vigna radiata L.) under water stress

A field experiment was conducted during rabi season of 2017-18 at agricultural college farm, Bapatla to investigate the effect of seed pretreatment and foliar application of zinc on relative water content (RWC) and photosynthetic pigments in mungbean under moisture stress, in a split plot design with three replications. The treatments comprised of two main treatments viz., no stress i.e. control (M0) and stress from flowering stage (i.e. from 30 DAS) up to harvest (M1) and seven sub-treatments viz., no zinc application (S0), seed treatment with 0.05% and 0.075% ZnSO4 solutions for 5 hrs before sowing (S1 and S2), foliar spray of 300, 400 and 500 ppm ZnSO4 at 30 DAS (S3, S4 and S5) and water spray at 30 DAS (S6). The results of the study revealed that plants that were subjected to water stress from flowering stage decreased the RWC, total chlorophyll and carotenoid contents by 10.0, 7.5 and 12.6 per cent, respectively, over control plants. Among zinc treatments, Zinc foliar spray @ 500 ppm at 30 DAS increased the RWC, total chlorophyll and carotenoid contents by 8.1, 10.2 and 6.1 per cent respectively, over untreated plants. It can be concluded that the use of zinc spray @ 500 ppm at 30 DAS counteracted the negative effects of water stress on mungbean by maintaining high water potential and by actively synthesizing the photosynthetic pigments.

Effects of zinc application on cadmium (Cd) accumulation and plant growth through modulation of the antioxidant system and translocation of Cd in low- and high-Cd wheat cultivars

Cadmium (Cd) contamination is a big challenge for managing food supply and safety around the world. Reduction of the bioaccumulation of cadmium (Cd) in wheat is an important way to minimize Cd hazards to human health. This study compared and highlighted the effects of soil and foliar applications of Zn on Cd accumulation and toxicity in cultivars with high Cd accumulation (high-Cd wheat) and low Cd accumulation (low-Cd wheat). Both foliar and soil Zn applications provided effective strategies for reducing wheat grain Cd concentrations in the high-Cd wheat by 26–49% and 25–52%, respectively, and these also significantly reduced the concentrations in wheat stems and leaves. Foliar and soil Zn applications significantly reduced Cd in leaves and stems of the low-Cd wheat but had no effects on grain Cd. Both soil and foliar Zn applications significantly alleviated Cd toxicity by regulation of Cd transport genes, as reflected by the increased grain yield and antioxidant enzyme activity in the wheat tissues. Gene expression in response to zinc application differed in the two wheat cultivars. Down-regulation of the influx transporter (TaNramp5) and upregulation of the efflux transporters (TaTM20 and TaHMA3) in the high-Cd wheat may have contributed to the Zn-dependent Cd alleviation and enhanced its tolerance to Cd toxicity. Additionally, foliar Zn applications down-regulated the leaf TaHMA2 expression that reduced root Cd translocation to shoots, while soil Zn applications down-regulated the root TaLCT1 expression, which contributed to the reduction of root Cd concentrations. Soil (99 kg ZnSO4·7H2O ha−1) and foliar (0.36 kg ZnSO4·7H2O ha−1) Zn applications can effectively decrease the Cd in grains and guarantee food safety and yield, simultaneously. The presented results provide a new insight into the mechanisms of, and strategies for, using Zn for the Cd reduction in wheat.

Effect of zinc application on growth and yield of baby corn (Zea mays L.) in lateritic soil of West Bengal

A field experiment was conducted during rabi season of 2017-18 at agricultural farm, Palli Siksha Bhavana, Visva-Bharati, Sriniketan, West Bengal, to study the “Effect of zinc application on growth, yield and economics of baby corn (Zea mays L.) in lateritic soil of West Bengal”. The experiment was laid out in Factorial RBD having two factors: one with two levels of soil application of ZnSO4; 0 and 25 kg ha-1 and other with four levels of foliar spray of ZnSO4; no foliar spray, 25 DAS, 40 DAS and twice at 25 DAS & 40 DAS. There were eight treatment combinations with each treatment replicated thrice. Soil application of ZnSO4 @ 25 kg ha-1 exhibited significantly higher growth attributes (viz. plant height, number of leaves/plant, LAI, dry matter accumulation, crop growth rate) and yield attributes (viz. number of cobs per plant, corn and cob weight, corn and cob length, corn and cob girth and also corn yield, cob yield, husk yield and green fodder yield) of baby corn, than no soil application of ZnSO4. Foliar spray of ZnSO4 applied twice at 25 DAS & 40 DAS gave the highest yield components and yield in baby corn. However, this was statistically at par with foliar spray of ZnSO4 at 40 DAS and 25 DAS. Combined soil application of ZnSO4 @ 25 kg ha-1 and foliar spray twice at 25 DAS & 40 DAS interacted significantly and produced higher number of cobs per plant, number of cobs per hectare of baby corn cultivation. This was at par with soil application of ZnSO4 at 25 kg ha-1 and foliar spray at 40 DAS and significantly higher than foliar spray at 25 DAS.

Morpho-physiological and transcriptome analysis provide insights into the effects of zinc application on nitrogen accumulation and metabolism in wheat (Triticum aestivum L.)

Nitrogen (N) is the essential nutrient for wheat growth and development, its accumulation and metabolism controlled by many other elements. Zinc (Zn) is one of the important elements which tends to have effects on plant N homeostasis. Here in our study, 0 μM and 5 μM Zn was applied to the wheat seedlings culturing in 5 mM (+N) and 0.5 mM (-N) N treatments, respectively. The results showed that the shoot and root length growth performance, total N, NO3−, and amino acid concentrations, glutamine synthetase (GS) activity of wheat were facilitated by 5 μM Zn application under + N and –N conditions. Quantitative real-time PCR (qRT-PCR) analysis indicated that several NO3− transporters genes (TaNRT2.1, TaNPF7.1 and TaNPF7.2) and the genes encoding GS (TaGS1 and TaGS2) were induced by 5 μM Zn. In addition, transcriptional changes in wheat shoots and roots with Zn application were tested by RNA-seq techniques. A total of 147/551 induced and 36/2162 reduced differentially expression genes (DEGs) was detected in wheat shoots/roots, respectively. GO and KEGG enrichment analyses showed that 5 μM Zn mainly affected the glutathione (GSH) metabolism, phenylpropanoid biosynthesis and amino acid metabolism, involving in N homeostasis. Furthermore, the relative expression of genes related to phenylalanine, cysteine and methionine metabolism was induced by 5 μM Zn to promote the amino acid accumulation. Overall, these results highlight the facilitating of N accumulation by low level Zn, and provide an insight into the effects of Zn on N metabolism in wheat.

Effect of zinc application on the maize

The article presents the results of field experience in studying the effect of zinc-containing fertilizers on the growth and yield of maize. The experiment was carried out under typical loamy chernozem in the loess of the Left-Bank Forest-Steppe (Sumy region, Sumy oblast). The following plots were studied: 1) control; 2) pre-sowing treatment of corn seeds with Monozinc, 3) treatment of seeds with Monozinc + spraying in the phase of 3-5 leaves Nutrivant Plus (0.5 l/ha); 4) seed treatment with Monozinc + spraying Nutrivant Plus in the phase of 3‒5 leaves (0.5 l/ha) and 10-11 leaves (1 l/ha). Zn monocinc from «Compo» (Germany) and Nutrivant Plus grain from «ICL Fertilizers» (Israel) were used, a hybrid of corn was Inagua (FAO 210, France). An increasing of the leaf surface area, plant height, height of the main ear in maize and yield under zinc fertilizers application has been established. The height of the main ear in maize was at the level of 72‒78 cm, the application of fertilizers slightly increased this indicator. The zinc application clearly influenced on the increasing of maize yields, but their effectiveness more depended on weather conditions. Under stress, the application of Nutrivant gave a larger increasing of grain yield. The maize yield increased to 0.35 t/ha under Monozinc seed treatment and with foliar top dressing with a Nutrivant plus 0.73, two-time top dressing ‒ 0.97 t/ha.
 On average, over two years of research, the weight of 1000 seeds in the control was 301.1 g, in fertilized plots ‒ 303.8‒310.9 g. The weight of grain in the treatment 2 was 2.1 g, in the 3 ‒ 5.8 g and on the 4-th ‒ 9.7 g.
 Monozinc treatment of seeds leads to increased germination energy to 3.1 % (compared to control), field and laboratory germination to 3.3 and 3.0 %, respectively. 

Growth, Nodulation and Nutrients Uptakes of Cowpea (Vigna unguiculata L. Walp) following Zinc Fertilizer Applications in the Semi-deciduous Forest Zone of Ghana

Cowpea can fix atmospheric nitrogen through symbiotic association with indigenous rhizobia but unfortunately, the amount of N2-fixed is usually not enough due to the presence of ineffective or low numbers of indigenous rhizobia in the soil. The effect of Zinc applications on growth, nodulation and nutrient uptakes of cowpea was investigated during the major and minor cropping seasons (2016). Cowpea seed varieties were treated to foliar spray with three different rates of Zinc sulfate (0, 5 and 10 kg Zn ha-1) at 3 and 5 weeks after sowing. The split plot design was used for both cropping seasons. This study shows that the supply of Zn fertilizer applications did not affect growth and nodulation in 2016 major and minor cropping seasons. The application of the 5 kg Zn ha-1 led to better cowpea production and greatly improve the quantity (haulm and grain yield) and quality (NPK content and crude protein) of cowpea in both haulm and grain. The Zinc fertilizer significantly enhanced N2-Fixed in both cropping season’s trial investigating. These findings suggest that cowpea responds differently to Zinc Sulphate application depending on its rates and the application of the 5 kg Zn ha-1 is the optimum rate that will enhance the yield and nutrient quality of cowpea in the Semi-Deciduous Forest Zone of Ghana.