scholarly journals Enrichment of 65Zn in two contrasting rice genotypes under varying methods of zinc application

2014 ◽  
Vol 60 (No. 3) ◽  
pp. 111-116
Author(s):  
B. Mathpal ◽  
Srivastava PC ◽  
Shukla AK ◽  
D. Shankhdhar ◽  
Shankhdhar SC
Keyword(s):  
Foliar Spray ◽  
Rice Varieties ◽  
Soil Application ◽  
Plant Parts ◽  
Zn Content ◽  
Translocation Efficiency ◽  
Rice Genotypes ◽  
Almost All ◽  
Zinc Application ◽  
Different Levels

Zinc (Zn) is an essential micronutrient for growth and development of almost all organisms and its deficiency severely affects the health of plants, animals and humans. In order to investigate the enrichment of Zn in cereals a pot experiment was performed in two contrasting rice varieties viz., PD16 (zinc efficient) and NDR359 (zinc inefficient) under different levels of zinc regimes such as control (0 Zn), soil application (5 mg Zn/kg soil tagged with 3.7 MBq of <sup>65</sup>Zn/pot), foliar spray of 0.5% ZnSO<sub>4</sub> at 30, 60 and 90 days (925 KBq of <sup>65</sup>Zn/pot), soil application (5 mg Zn/kg soil tagged with 3.7 MBq of <sup>65</sup>Zn/pot) + foliar spray of 0.5% ZnSO<sub>4</sub> at 30, 60 and 90 days (925 KBq of <sup>65</sup>Zn/pot). Both varieties markedly differ in <sup>65</sup>Zn accumulation and grain Zn content. NDR359 showed poor translocation efficiency and accumulated relatively less <sup>65</sup>Zn in all the plant parts. In both rice varieties, highest concentration of Zn in dehusked grains could be obtained with soil application of Zn + foliar spray of zinc sulphate. Though NDR359, a zinc inefficient variety exhibited poor zinc translocation efficiency yet, it contained more Zn content in grains with husk and dehusked grains than PD16.

scholarly journals Agronomic biofortification with zinc on yield, nutritional quality, nutrient uptake and economics of babycorn

2021 ◽  
Vol 13 (SI) ◽  
pp. 80-85
Author(s):  
G. Tamil Amutham ◽  
R. Karthikeyan ◽  
N. Thavaprakaash ◽  
C. Bharathi
Keyword(s):  
Nutrient Uptake ◽  
Nutritional Quality ◽  
Crude Protein ◽  
Soluble Sugars ◽  
Foliar Spray ◽  
Quality Parameters ◽  
Total Soluble Sugars ◽  
Soil Application ◽  
Zn Content ◽  
Agronomic Biofortification

The aim of the present study was to investigate the effect of agronomic biofortification with zinc on yield, nutritional quality, nutrient uptake and economics of babycorn under irrigated condition. The observations on yield viz., green cob yield, babycorn yield and green fodder yield and quality parameters (crude protein, total soluble sugars, starch and Zn content) were recorded at harvest stage. The nutrient uptake was analysed at different growth stages and economic indices viz., the total cost of cultivation, gross return, net return and benefit cost ratio were worked out for various zinc fertilization treatments. Increased green cob yield and babycorn yield was recorded higher in soil application of zinc sulphate @ 37.5 kg ha-1  along with a foliar spray of 1.0 % on 20 and 40 DAS. Quality parameters of babycorn viz., crude protein, total soluble sugars, starch and Zn content in corn were significantly increased with soil application of ZnSO4 @ 37.5 kg ha -1 along with a foliar spray of 0.5% at 20 and 40 DAS that recorded higher values of these quality characters. Plant nutrient uptake of N, K and Zn in babycorn was significantly increased with the application of ZnSO4 @ 37.5 kg ha -1 in soil with foliar spray of 0.5% at 20 and 40 DAS. Higher net monetary returns and B: C ratio were obtained with application of ZnSO4@ 37.5 kg ha -1in soil with foliar spray @ 0.5% on 20 and 40 DAS.  

scholarly journals Molecular characterization of rice genotypes for Zinc biosynthetic gene(s) using microsatellite simple sequence repeat (SSR) markers

2015 ◽  
Vol 1 (2) ◽  
pp. 187-197 ◽  
Author(s):  
Md Mukul Mia ◽  
Shanjida Rahman ◽  
Mirza Mofazzal Islam ◽  
Shamsun Nahar Begum ◽  
Lutful Hassan
Keyword(s):  
Information Content ◽  
Ssr Markers ◽  
Polymorphism Information Content ◽  
Gene Diversity ◽  
Genetic Relationships ◽  
Polyacrylamide Gel Electrophoresis ◽  
Rice Varieties ◽  
Zn Content ◽  
Rice Genotypes ◽  
Rice Microsatellite

Zinc deficiency is prevalent and affects nearly two billion people in the developing world, where mainly cereals are consumed as staple food by the people. It is essential to study the genetic characters of the rice genotypes containing genes responsible for zinc synthesis so that they can be used as breeding resource to develop nutrient rich rice varieties. In this study, 46 rice (Oryza sativa L., 2n=24) genotypes were studied for their Zinc biosynthesis ability using 3 Rice Microsatellite (RM) markers (RM23, RM217 and RM35) linked to Zn content at Biotechnology Laboratory of Bangladesh Institute of Nuclear Agriculture (BINA) and Genetics and Plant Breeding Laboratory of Bangladesh Agricultural University, Mymensingh during 5 August, 2013 to 30 April, 2014. The DNA samples were isolated by CTAB mini-prep method from 21 days older rice leaf samples followed by Polymerase chain reaction (PCR). Three markers (Rm23, RM35 and RM217) showed effective polymorphism in DNA band appearance for Zn content out of ten SSR markers. The alleles were separated on Polyacrylamide Gel Electrophoresis (PAGE) system. After molecular analyses of DNA bands using Power Marker software, variation was found in allele number, allele frequency, polymorphism information content (PIC) and gene diversity for each genotype. Number of alleles (23, 19 & 13), PIC-polymorphism information content (0.946, 0.911 & 0.829), gene diversity (0.948, 0.917 & 0.846), rare allele (16, 12 & 8) and null allele (0, 16 & 2) were observed for 3 rice microsatellite (RM) markers viz. RM35, RM217 and RM23, respectively for the 46 rice genotypes. A total of 55 alleles were found by using 3 SSR primers for all genotypes. The number of alleles per locus ranged from 13 to 23 with an average of 18.33 out of total 55 alleles. The UPGMA Dendrogram categorized all the varieties into 7 distinct clusters based on 50% of average genetic distance among the 46 genotypes (Figure 2 and Table 7). Since the primers showed almost similar and highest PIC values, based on this study, the larger range of similarity values using SSR markers will provide greater confidence for the assessment of genetic relationships among the varieties. The information obtained from SSR profiling helped in identifying the varieties containing genes for Zn synthesis among the selected rice genotypes. Among all the rice genotypes, Kumra Ghor, Ghigoj, Tilek Kuchi contained high Zn content found in another chemical analysis. Most of the genotypes contained candidate gene for Zn synthesis and can be used as breeding materials to develop nutrient (Zn) rich rice varieties through different selective breeding methods in future.Asian J. Med. Biol. Res. June 2015, 1(2): 187-197

scholarly journals Improving nutritional quality of wheat through soil and foliar zinc application  

2013 ◽  
Vol 59 (No. 8) ◽  
pp. 348-352 ◽  
Author(s):  
K. Bharti ◽  
N. Pandey ◽  
D. Shankhdhar ◽  
Srivastava PC ◽  
Shankhdhar SC
Keyword(s):  
Nutritional Status ◽  
Nutritional Quality ◽  
Foliar Spray ◽  
Molar Ratio ◽  
Wheat Grain ◽  
Zn Content ◽  
Foliar Zinc Application ◽  
Zinc Application ◽  
Methionine Content

A field study was conducted to ascertain the effect of three zinc (Zn) levels: 0, 20 kg ZnSO<sub>4</sub>/ha and 20 kg ZnSO<sub>4</sub>/ha + foliar spray of 0.5% ZnSO<sub>4</sub>, on wheat grain Zn content and factors contributing to or hindering in its bioavailability. Increasing Zn levels were established as serviceable in improving the nutritional status of genotypes. Soil application + foliar spray proved to be paramount for all the traits leading to an 80% increase in grain Zn content, 61.3% in methionine content and a decrease of 23.2% in phytic acid as an average of all genotypes and both years. The genotype UP 2382 was found more suited to Zn fertilization in allocating Zn and maintaining a lower phytate to Zn molar ratio.

Effects of soil zinc availability, nitrogen fertilizer rate and zinc fertilizer application method on zinc biofortification of rice

2015 ◽  
Vol 154 (4) ◽  
pp. 584-597 ◽  
Author(s):  
J. X. GUO ◽  
X. M. FENG ◽  
X. Y. HU ◽  
G. L. TIAN ◽  
N. LING ◽  
...  
Keyword(s):  
Grain Yield ◽  
Foliar Spray ◽  
Fertilizer Application ◽  
N Fertilizer ◽  
Rice Grain ◽  
Fertilizer Rate ◽  
Soil Application ◽  
Application Method ◽  
Zn Content ◽  
Zn Status

SUMMARYRice (Oryza sativa L.) is one of the most important cereal crops in the world and a potentially important source of zinc (Zn) in the diet. The improvement of Zn content of rice is a global challenge with implications for both rice production and human health. The objective of the present study was to identify the effects of nitrogen (N) fertilizer rates and Zn application methods on Zn content of rice by evaluating rice production on native soils with different Zn availabilities in 2010/11. The results indicated that Zn application increased rice grain yield and Zn content in grains compared with the control; however, this effect was also affected by the native soil Zn availability, N fertilizer rate and Zn fertilizer application method. The native soil Zn status was the dominant factor influencing grain yield and grain Zn content in response to Zn fertilizer application. Grain Zn content ranged from 19·74 to 26·93 mg/kg under the different Zn statuses. The results also indicated that Zn application method has a significant influence on grain yield. Application of Zn fertilizer to the soil was more effective than the foliar spray on rice grain yield; however, the foliar spray resulted in a greater increase in grain Zn content when compared with soil application. Grain Zn content was affected by application method and displayed the following general trend: soil application + foliar spray > foliar spray > soil application. The experiments investigating the effect of N fertilizer rate combined with Zn application method showed a clear increase in both grain yield and Zn content as the N fertilizer level increased from 200 to 300 kg/ha. In addition, the results also indicated that N content and accumulation increased in all plant tissues, which suggests that Zn application might influence the uptake and translocation of N in rice plants. These results suggest that soil application in addition to a foliar spray of Zn should be considered as an important strategy to increase grain yield and grain Zn content of rice grown in soils with low background levels of Zn-associated diethylene triamine pentaacetate acid. Moreover, this process could be further strengthened by a high N application rate. In conclusion, these results demonstrate the potential of optimizing nutrient management using Zn fertilizer to obtain higher grain yields and higher grain Zn content in fields with low native Zn status.

scholarly journals Agronomic biofortification in rice varieties through zinc fertilization under aerobic condition

2018 ◽  
Author(s):  
Debasish Barua ◽  
Mrinal Saikia
Keyword(s):  
Grain Yield ◽  
Foliar Spray ◽  
Brown Rice ◽  
Aerobic Condition ◽  
Seed Priming ◽  
Control Treatment ◽  
Rice Varieties ◽  
Zinc Fertilization ◽  
Zn Content ◽  
Agronomic Biofortification

A field experiment on agronomic biofortification in rice varieties through zinc fertilization under aerobic condition was carried out at Assam Agricultural University, Jorhat during autumn season of 2014. Among the Varities, Inglongkiri recorded significantly higher grain yield (21.09 q/ha) followed by Banglami (19.88 q/ha) under aerobic condition. Application of ZnSO4 @ 25 kg/ha + foliar spray @ 0.5% at 3 stages recorded the highest grain yield (21.46 q/ha) followed by application of ZnSO4 @ 25 kg/ha + seed priming with ZnSO4 (2%) (20.72 q/ha). The lowest grain yield was recorded in control treatment (16.47 q/ha). Highest grain Zn content (32.03 mg/kg) and Zn content of brown rice(without polish) (26.81 mg/kg) was noticed in Inglongkiri. Application of ZnSO4 @ 25 kg/ha as basal + foliar spray @ 0.5 % at three stages reveals significantly highest Zn content in grain (35.09 mg/kg) and brown rice (28.31mg/kg).

scholarly journals Foliar Spray at Spring Flush Enhances Zinc Status of Pistachio and Walnut Trees

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 879F-880
Author(s):  
Qinglong Zhang ◽  
Patrick H. Brown
Keyword(s):  
Foliar Spray ◽  
Residual Effect ◽  
Zn Deficiency ◽  
Plant Parts ◽  
Spray Solution ◽  
Zn Addition ◽  
Zn Content ◽  
Walnut Leaves ◽  
Zn Status ◽  
Very High

In this study, we investigated the effectiveness of several Zn formulations applied at various times of the year in increasing Zn status of pistachio and walnut leaves. Formulations included inorganic and organic forms of Zn. Fall sprays was ineffective at supplying Zn to developing leaves even when very high rates (5000 ppm) were used. Late dormant and budbreak sprays were effective at supplying Zn to developing leaves and nuts only when extremely high rates (5000 ppm) were applied. Spring flush sprays were the most effective, while late spring and summer sprays were ineffective. The majority of the Zn applied remained in the epidermis of the sprayed leaves, which resulted in high Zn content of leaves but poor correction of Zn deficiency and little or no translocation of Zn to other plant parts. Many of the Zn formulations sprayed at spring flush at a rate of 1000 ppm effectively increased leaf Zn values by at least 10 μg–g–1. Addition of an appropriate organic acid to the spray solution and adjustment of pH to ≈4.5 improves leaf uptake and translocation of Zn. Addition of specific surfactants into the spray solution is also recommended. Use of N- and P-containing Zn spray formulations is less effective than sulfur-based sprays (i.e., ZnSO4). Significantly, there is little residual effect of foliar sprays (even at spring flush), indicating that consecutive sprays for several years are needed to maintain productivity in Zn-deficient regions.

scholarly journals Hops (Humulus lupulus L.) as a Novel Multipurpose Crop for the Mediterranean Region of Europe: Challenges and Opportunities of Their Cultivation

Agriculture ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 484
Author(s):  
Francesco Rossini ◽  
Giuseppe Virga ◽  
Paolo Loreti ◽  
Nicolò Iacuzzi ◽  
Roberto Ruggeri ◽  
...  
Keyword(s):  
Humulus Lupulus ◽  
Specific Reference ◽  
Research Activity ◽  
Plant Parts ◽  
Craft Beer ◽  
Recent Success ◽  
Natural Medicine ◽  
Humulus Lupulus L ◽  
Challenges And Opportunities ◽  
Almost All

The common hop (Humulus lupulus L.) is a dioecious perennial climbing plant, mainly known for the use of its female inflorescences (cones or, simply, “hops”) in the brewing industry. However, the very first interest towards hops was due to its medicinal properties. Actually, the variety of compounds present in almost all plant parts were (and still are) used to treat or prevent several ailments and metabolic disorders, from insomnia to menopausal symptoms as well as obesity and even cancer. Although hops are predominantly grown for hopping beer, the increasing interest in natural medicine is widening new interesting perspectives for this crop. Moreover, the recent success of the craft beer sector all over the world, made the cultivated hop come out from its traditional growing areas. Particularly, in Europe this resulted in a movement towards southern countries such as Italy, which added itself to the already existing hop industry in Portugal and Spain. In these relatively new environments, a complete knowledge and expertise of hop growing practices is lacking. Overall, while many studies were conducted globally on phytochemistry, bioactivity, and the genetics of hops, results from public research activity on basic hop agronomy are very few and discontinuous as well. The objective of this article is to provide an overview of possible uses, phenology, and agronomic aspects of hops, with specific reference to the difficulties and opportunities this crop is experiencing in the new growing areas, under both conventional and organic farming. The present review aims to fill a void still existing for this topic in the literature and to give directions for farmers that want to face the cultivation of such a challenging crop.

scholarly journals Impact of zinc fertilization on growth, yield and quality of zero till wheat (Triticum aestivum L.)

2021 ◽  
Vol 42 (2) ◽  
pp. 326-331
Author(s):  
M. Singh ◽  
◽  
K.S. Sandhu ◽  
Keyword(s):  
Foliar Application ◽  
Foliar Spray ◽  
Growth Yield ◽  
Triticum Aestivum L ◽  
Recommended Dose ◽  
Zn Deficiency ◽  
Soil Application ◽  
Yield And Quality ◽  
The Impact

Aim: To determine the impact of soil and foliar application of ZnSO4.7H2O at late stages of wheat as heading initiation (5% ear formation), 100% heading (complete ear formation) and heading initiation and 100% heading along with recommended dose of fertilizer on growth, yield and quality of zero till wheat. Methodology: The field experiment was conducted on zero till wheat. The treatments consisted of control (no Zn), soil application of 12.5, 25, 37.5, 50 kg ha-1 ZnSO4.7H2O and foliar application of 0.5% Zn as one spray at heading initiation (5% ear formation), one spray at 100% heading (complete ear formation) and two sprays at heading initiation and 100% heading with recommended dose of fertilizer. These treatments were evaluated in RBD with three replications. Results: Soil application of 50, 37.5 and 25 kg Zn ha-1 with two foliar sprays of 0.5% at heading initiation (5% ear formation) and 100% heading (complete ear formation) stages gave significantly higher average grain and straw yield and Zn concentration in grain than other treatments, including control. Interpretation: Enhanced application of Zn as soil and foliar application ameliorates soil Zn deficiency and increases protein content in grains, which might influence the quality and yield of zero tilled wheat. Key words: Foliar spray, Grain yield, Wheat, Zinc

Sign in / Sign up

Export Citation Format

Share Document