scholarly journals Effect of foliar application of iron and zinc on nutrient uptake and grain yield of wheat under different irrigation regimes

2018 ◽  
Vol 43 (3) ◽  
pp. 395-406 ◽  
Author(s):  
S Sultana ◽  
HM Naser ◽  
MA Quddus ◽  
NC Shill ◽  
MA Hossain
Keyword(s):  
Water Stress ◽  
Grain Yield ◽  
Foliar Application ◽  
Grain Filling ◽  
Root Initiation ◽  
Crown Root ◽  
Filling Stage ◽  
Water Stress Condition ◽  
Iron And Zinc ◽  
Grain Filling Stage

A field experiment was carried out to study the zinc-iron relationship in wheat (BARI Gom-26) plant grown under water stress condition in the field near net house of Soil Science Division, BARI, Joydebpur, Gazipur, during November 2015 to March 2016. The experiment was designed in a split plot on sixteen treatments comprising four irrigation treatments (regular irrigation, stopping irrigation at crown root initiation, stopping irrigation at booting stage and stopping irrigation at grain filling stage) and four foliar application of zinc and iron (control, 0.05% of zinc, 0.05% of iron and 0.05% of zinc +0.05% of iron). Zinc sulphate monohydrate (ZnSO4. H2O) and ferrous sulphate (FeSO4. H2O) were used as a source of Zn and Fe. The highest yield (4.01 t ha-1) was recorded in stopping irrigation at grain filling stage which was identical with regular irrigation. Water stress at crown root initiation stage had the most negative effect on growth and yield. Foliar application of zinc and iron played a major role on yield and yield components of wheat at later stages of growth. The results obtained from the present research showed that iron and zinc spray increased grain yield and quality of wheat and improved the effects caused by drought stress.Bangladesh J. Agril. Res. 43(3): 395-406, September 2018

Comparison of physiological response to growth stage-based supplemental and conventional irrigation management of wheat

2021 ◽  
pp. 1-12
Author(s):  
Adnan Al-ghawry ◽  
Attila Yazar ◽  
Mustafa Unlu ◽  
Celaleddin Barutcular ◽  
Yeşim Bozkurt Çolak
Keyword(s):  
Water Stress ◽  
Stomatal Conductance ◽  
Grain Yield ◽  
Chlorophyll Content ◽  
Grain Filling ◽  
Wheat Crop ◽  
Supplemental Irrigation ◽  
Filling Stage ◽  
Grain Filling Stage ◽  
Conventional Irrigation

Abstract A field experiment was carried out to evaluate the effect of different conventional and supplemental irrigation strategies on leaf stomatal conductance (gs) and chlorophyll content (SPAD) yield and irrigation water productivity (IWP) of wheat using sprinkler line source in 2014 and 2015 in the Mediterranean region. The irrigation strategies were, supplemental irrigation (SI) during flowering and grain filling (SIFG), SI during grain filling (SIG), SI during flowering (SIF) and conventional irrigation (CI). These strategies were conducted under four irrigation levels 25, 50, 75, 100% and a rain-fed as control. The results indicated that CI100 and CI75 produced the greater grain yield and IWP, respectively. CI100 resulted in the increased chlorophyll content by 8.8% over rain-fed. The results confirmed that the SPAD and stomatal conductance values were not equally sensitive to water stress during growth stages. The wheat crop suffered a greater SPAD and gs reductions when the water stress occurred during the grain filling stage (SIF strategy) compared to other strategies, which means that the grain filling stage is more sensitive and effective to decrease the yield of winter wheat. The higher grain yields were achieved when the seasonal mean gs reached 207.4 mmol/m2s in CI and 169.2 mmol/m2s in SI, and the stomatal closure responded well to low, moderate and severe drought treatments. The leaf stomatal conductance (gs) was correlated linearly with grain yield. These relations could be used as a physiological indicator to evaluate water stress effect on the growth and productivity of wheat.

scholarly journals Effects of foliar fertilization of common bean (Phaseolus vulgaris, L.) during the seed-filling stage

1977 ◽  
Vol 34 (0) ◽  
pp. 551-563
Author(s):  
A.M.L. Neptune ◽  
T. Muraoka
Keyword(s):  
Phaseolus Vulgaris ◽  
Grain Yield ◽  
Common Bean ◽  
Ammonium Nitrate ◽  
Root System ◽  
Foliar Application ◽  
Foliar Spray ◽  
Grain Filling ◽  
Phaseolus Vulgaris L ◽  
Filling Stage

An experiment was carried out with common bean (Phaseolus vulgaris, L.) in a Red Yellow Latossol, sandy phase, in order to study the influence of foliar spraying of the Hanway nutrient solution (NPKS) at grain filling stage on: 1) grain yield; 2) the uptake of fertilizer and soil nitrogen by this crop through the root system and 3) the efficiency of utilization of the nitrogen in the foliar spray solution by the grain. The results of this experiment showed that the foliar application of the Hanway solution with ammonium nitrate at the pod filling period caused severe leaf burn and grain yield was inferior to that of the plants which received a soil application of this fertilizer at the same stage. These facts can be attributed to the presence of ammonium nitrate in the concentration used. The composition of final spray was: 114,28 Kg NH4NO3 + 43,11 Kg potassium poliphosphate + 12,44 Kg potassium sulphate per 500 litres. The uptake of nitrogen fertilizer through the root system and the efficiency of its utilization was greater than that through the leaves.

scholarly journals Growth and yield of wheat (Triticum aestivum) under deficit irrigation

2014 ◽  
Vol 38 (4) ◽  
pp. 719-732 ◽  
Author(s):  
PK Sarkar ◽  
MSU Talukder ◽  
SK Biswas ◽  
A Khatun
Keyword(s):  
Water Stress ◽  
Grain Yield ◽  
Water Deficit ◽  
Deficit Irrigation ◽  
Water Productivity ◽  
Root Initiation ◽  
Moisture Condition ◽  
Soil Moisture Condition ◽  
Crown Root ◽  
Initiation Stage

Timing and the extent of water deficit were studied in a field experiment on wheat (cv. Shatabdi) for three consecutive years from 2003-04 through 2005-06 at Jamalpur area. The effects of number and timing of irrigation application on yields were investigated under variable soil moisture condition in the root zone of different treatments. Eight deficit irrigations, including one no stress and one rainfed treatments were selected to subject the crop to various degrees of soil water deficit at different stages of crop growth. Measured amount of irrigation water was applied as per schedule prescribed for a particular treatment. Grain yield (GY), biomass, harvest index (HI), and water productivity (WP) were reasonably affected by deficit irrigation. Other yield contributing parameters like 1000-grain weight, grains/spike and spike, length were also affected by different levels of deficit irrigation. During grain formation stage, water deficit did not affect the grain yield but saved water significantly. Such water deficit treatments also shortened the grain maturation period. Differences in grain and straw yield among the stressed and no stress treatments are comparatively small, and statistically insignificant in some cases. The highest water productivity (2.02 kg/m3) was observed in treatment which was irrigated only once at crown root initiation stage (T2) although the yield was comparatively low. The CRI (crown root initiation) stage was found the most sensitive to water stress. Water stress at vegetative stage also reduced the yield considerably. DOI: http://dx.doi.org/10.3329/bjar.v38i4.19663 Bangladesh J. Agril. Res. 38(4): 719-732, December 2013

Effects of 1, 2, 4 - trichlorobenzene on physiological characteristics during grain filling stage and grain yield of rice of different genotypes

2016 ◽  
Vol 36 (5) ◽  
Author(s):  
李玉 LI Yu ◽  
丁焕新 DING Huanxin ◽  
丁秀文 DING Xiuwen ◽  
殷毅凡 YIN Yifan ◽  
孙影 SUN Ying ◽  
...  
Keyword(s):  
Grain Yield ◽  
Grain Filling ◽  
Physiological Characteristics ◽  
Filling Stage ◽  
Grain Filling Stage

scholarly journals Screening of Foliar Reagent Reduces Cadmium Accumulation in Wheat Grains

2021 ◽  
Author(s):  
Shenglan Xia ◽  
Jie Wang ◽  
Zanming Chen ◽  
Hai Lan ◽  
Zhenguo Shen ◽  
...  
Keyword(s):  
Field Experiment ◽  
Foliar Application ◽  
Grain Filling ◽  
Cadmium Content ◽  
Cd Accumulation ◽  
Wheat Grains ◽  
Flag Leaves ◽  
Filling Stage ◽  
Grain Filling Stage ◽  
The Relationship

Abstract Cadmium (Cd) in agricultural soils can be taken up by wheat and transferred into the grains, risking human health. In this study, we tested the effects of nineteen foliar treatments alone, and also combined treatments on the Cd concentration of grains in pot/field experiments, and the field experiment, respectively. In addition, we tested the better growth period for foliar application to inhibit Cd accumulation in wheat grains. Foliar application of Ethylenediaminetetraacetic acid (EDTA), Sodium selenite (Se) and Sodium nitroprusside (SNP) can significantly reduce Cd concentration of wheat grains, with 49.2%, 29.6%, and 28.8% decreased respectively in the field. Foliar application of EDTA, Se, Zinc sulphate (Zn), Ascorbic acid (ASA), Sodium silicate (Si) and Ammonium molybdate (Mo) can significantly reduce Cd concentration of wheat grains in different treatments, with 32.3%, 32.0%, 27.7%, 27.7%, 26.3% and 25.9% decreased respectively in the pot. Thus, foliar application of 2 mM EDTA and 2 mM Se exerted excellent effects in controlling the Cd accumulation of wheat grains for both in pot and field experiment. We were concerned about the transfer of different aboveground tissues to the grain, foliar application with 0.1 mM Se or 2 mM EDTA significantly reduced Cd concentrations in grains both in grain filling stage and heading + grain-filling stage. Spraying at the filling stage of wheat has a better effect than at the heading stage for reducing the cadmium content in grains. In addition, the relationship between Cd concentration of grains and husks were significantly positive, while the relationship between Cd concentration of grains and flag leaves was significantly negative. Cd content in wheat grains decreased may be due to the Cd accumulation of flag leaves and the decrease of Cd transport from flag leaves and husks to the grains, which in turn reduces the transport of Cd to the grains.

scholarly journals Impact of Zinc Fertilization on Yield, Yield Attributes and Quality Parameters of Finger Millet Varieties under Rainfed alfisols of Southern Zone, Andhra Pradesh

2021 ◽  
pp. 1-12
Author(s):  
G. Mrudula ◽  
P. Sandhya Rani ◽  
B. Sreekanth ◽  
K. V. Nagamadhuri ◽  
M. Martin Luther
Keyword(s):  
Andhra Pradesh ◽  
Finger Millet ◽  
Foliar Application ◽  
Grain Filling ◽  
Quality Parameters ◽  
Yield Attributes ◽  
Southern Zone ◽  
Filling Stage ◽  
Zinc Fertilization ◽  
Grain Filling Stage

Aims: To study the effect of zinc fertilization through soil and foliar at different stages of finger millet on yield, yield attributes and quality in two major finger millet varieties under rainfed alfisols of southern zone, Andhra Pradesh Study Design:  Split-plot design Place and Duration of Study: Wetland farm, S.V Agricultural College, Tirupati and during kharif season of 2019 and 2020 (Two seasons) Methodology: Zinc fertilization to two major finger millet varieties viz., Vakula and Tirumala through soil and foliar application at different crop stages with following treatments viz.,  Control (No fertilizers and manures); RDF (60 -30-20 kg N-P-K + FYM @ 4 t ha-1);  RDF + soil application of ZnSO4 @ 25 kg ha-1 as basal; RDF+Soil application of chelated-ZnSO4 @ 5 kg ha-1; RDF+foliar application of 0.2% ZnSO4 at ear head emergence stage; RDF+foliar application of 0.2% ZnSO4 at grain filling stage; and RDF+foliar application of 0.2% ZnSO4 at ear head emergence and grain filling stage. The yield, yield attributes and quality parameters viz., protein, zinc and iron content in grains were determined by adopting standard protocols. Results: The application of zinc significantly (p<0.05) improved the yield and quality parameters over control. The foliar application of 0.2% ZnSO4 at ear head emergence and grain filling stage was significantly (p≤0.05) improved the yield and yield attributes of finger millet over RDF. The grain yield, straw yield, no. of productive tillers per plant, no. of fingers per plant were increased to 57.0%, 83.2%, 44.6% and 51.7%, respectively over RDF i.e., 60-30-20 kg N-P-K + FYM @ 4 t ha-1. The quality parameters namely protein, grain zinc and iron also increased up to 40.7%, 69.5% and 43.2%, respectively over RDF. Conclusion: Application of zinc sulphate at ear head emergence and grain filling stages enhanced the yield, yield parameters and quality parameters compared to other treatments of tirumala variety under rainfed alfisols of southern zone of Andhra Pradesh.

scholarly journals Single Irrigation Enhanced Water Productivity of Rainfed Wheat under Mediterranean Environment

2019 ◽  
Vol 11 (2) ◽  
pp. 277-282
Author(s):  
Abolfazl NASSERI ◽  
Hossein Ali FALLAHI ◽  
Vahid REZAVERDINEJAD
Keyword(s):  
Grain Yield ◽  
Water Productivity ◽  
Irrigation Management ◽  
Grain Filling ◽  
Mediterranean Environment ◽  
Optimum Yield ◽  
Filling Stage ◽  
Effect On Yield ◽  
Rainfed Wheat ◽  
Grain Filling Stage

Single or double irrigations of wheat are necessary to obtain optimum yield in a humid region with insufficient rainfall for agricultural production. Therefore, the hereby study was conducted with the aim of analysis of water productivity under rainfed and (single or double) irrigated conditions in a Mediterranean environment during 11 cropping years. There were investigated four treatments for irrigation management of wheat viz. rainfed without irrigation (T0), single irrigation at the flowering stage (T1), single irrigation at the grain filling stage (T2) and double irrigation at the flowering and grain filling stages (T3). Results revealed that the highest water productivity and optimum yield were acquired with single irrigation at the grain filling stage. This scheme caused an increase of 20% in grain yield relative to yield from rainfed condition. Rainfall, grain yield and water productivity of rainfed wheat were analyzed over 11 years and averaged 3,614 m3 ha-1, 1,970 kg ha-1 and 0.63 kg m-3, respectively. Results also showed that single or double irrigation had a high compensation effect on yield loss from water stress. Irrigation water productivity (1.31 kg m-3), water productivity (0.68 kg m-3) and irrigation ratio (2.2) indices determined for the 11 years. Water productivity of rainfed wheat by single irrigation at grain filling stage increased as 10% during 11 years.

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