Effects of Zinc on Growth and Physiological Characters of Flag Leaf and  Grains of Winter Wheat after Anthesis

Jiang, Lina; Zhang, Daijing; Song, Fei; Zhang, Xinmin; Yun, Shao; Li, Chunxi

doi:10.19026/ajfst.5.3129

Cited by 10 publications

(5 citation statements)

References 15 publications

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“… Kutman et al (2012) showed that the increase in the grain yield due to improved N and Zn supply was parallel to the increase in spike number and eventually grain amount. Nadim et al (2012) and Jiang et al (2013) in their respective studies pointed out higher leaf area index and photosynthetic rate in connection with soil applied Zn at sowing time. Ekiz et al (1998) noticed significant increase in wheat and other cereals grain yield when Zn (7 kg ha -1 ) was applied in Zn- deficient soil.…”

Section: Discussionmentioning

confidence: 89%

Zinc and Iron Concentration as Affected by Nitrogen Fertilization and Their Localization in Wheat Grain

et al. 2018

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Nearly half of the world cereal production comes from soils low or marginal in plant available zinc, leading to unsustainable and poor quality grain production. Therefore, the effects of nitrogen (N) rate and application time on zinc (Zn) and iron (Fe) concentration in wheat grain were investigated. Wheat (Triticum aestivum var. Krabat) was grown in a growth chamber with 8 and 16 h of day and night periods, respectively. The N rates were 29, 43, and 57 mg N kg-1 soil, equivalent to 80, 120, and 160 kg N ha-1. Zinc and Fe were applied at 10 mg kg-1 growth media. In one of the N treatments, additional Zn and Fe through foliar spray (6 mg of Zn or Fe in 10 ml water/pot) was applied. Micro-analytical localization of Zn and Fe within grain was performed using scanning macro-X-ray fluorescence (MA-XRF) and laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS). The following data were obtained: grain and straw yield pot-1, 1000 grains weight, number of grains pot-1, whole grain protein content, concentration of Zn and Fe in the grains. Grain yield increased from 80 to 120 kg N ha-1 rates only and decreased at 160 kg N ha-1 g. Relatively higher protein content and Zn and Fe concentration in the grain were recorded with the split N application of 160 kg N ha-1. Soil and foliar supply of Zn and Fe (Zn + Fes+f), with a single application of 120 kg N ha-1N at sowing, increased the concentration of Zn by 46% and of Fe by 35%, as compared to their growth media application only. Line scans of freshly cut areas of sliced grains showed co-localization of Zn and Fe within germ, crease and aleurone. We thus conclude that split application of N at 160 kg ha-1 at sowing and stem elongation, in combination with soil and foliar application of Zn and Fe, can be a good agricultural practice to enhance protein content and the Zn and Fe concentration in grain.

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Section: Discussionmentioning

confidence: 89%

Zinc and Iron Concentration as Affected by Nitrogen Fertilization and Their Localization in Wheat Grain

et al. 2018

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“…Therefore, its higher doses can be attributed to increased protein contents. Levels of Zn also played important role in stimulating protein contents in grains (Nadim et al, 2012;Jiang et al, 2013) Zn is indispensable nutrient for N metabolism due to its catalytic influence on numerous enzyme systems, biochemical activities responsible for nitrate reduction and protein synthesis (Khare and Dixit, 2011).…”

Section: Discussionmentioning

confidence: 99%

“…Its acute deficiency can lead up to 40% reduction in crop yield (Salvagotti and Miralles, 2007;Kutman et al, 2010;Kutman et al, 2011). Chlorophyll and auxin synthesis necessitate adequate Zn contents in plant tissues (Nadim et al, 2012;Jiang et al, 2013). Zinc also performs as cofactor to various enzymes hence, controls their activities.…”

Section: Introductionmentioning

confidence: 99%

Synergistic use of nitrogen and zinc to bio-fortify zinc in wheat grains

Akram¹,

Depar²,

Memon³

2017

Eurasian Journal of Soil Science (Ejss)

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Article Info Received : 24.01.2017 Accepted : 07.04.2017 Our daily diet is largely contributed by cereals, which have low genetic abilities to amass higher concentrations of micronutrients in their grains. Hence, wide spread deficiencies iron, zinc and other essential nutrients have prevailed. Present study focuses the biofortification of Zn in wheat grains, taking advantage of nutrient-nutrient synergy between Zn and N. Three wheat genotypes (NIA-Amber, BWQ-4 and SD-998) were tested in a field experiment following randomized complete block factorial design with three replicates. Urea fertilizer was applied at the rates of 120 (recommended), 150 and 180 kg N ha -1 in combination with three levels of Zn (0, 5 & 10 kg ha -1 ). Outcomes of the experiment revealed that NIA-Amber had the highest grain yield of 6.03 tons/ha against 150 kg N ha -1 and 10 kg Zn ha -1 . Maximum Zn contents of 447.86, 429.56 and 395.56 g ha -1 were observed in BWQ-4, SD-998 and NIA-Amber at 180 kg N ha -1 in combination with 10 kg Zn ha -1 . Maximum enhancement in protein contents was observed in BWQ-4 (743 kg ha -1 ) at 180 kg N ha -1 and combined with 5 kg Zn ha -1 . For NIA-Amber, 180 kg N ha -1 in combination of 10 kg Zn ha -1 proved the most suitable in terms of Zn concentration and other quality attributes. Nitrogen @ 180 kg N ha -1 with 5 kg Zn ha -1 depicted appreciable zinc and protein contents in grains of BWQ-4 and SD-998.

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“…SOD is the elementary scavenger enzyme involved in the detoxification of ROS in plant and converts superoxide to H 2 O 2 and O 2 (Miller et al 2007). SOD, an antioxidative enzyme, catalyzes the dismutation of free radical into H 2 O 2 and O 2 which in turn inhibits lipid peroxidation of membrane and hence may delay flag leaf senescence (Jiang et al 2013;Xu et al 2017), whereas CA is involved in photosynthesis and acts as storage pool of Zn in leaf (Han et al 2004). The enhancement in SOD and CA activities due to Zn helps in greater accumulation of photosynthates as well as Zn concentration in different plant parts (Bharti et al 2014;Singh et al 2019).…”

Section: •-mentioning

confidence: 99%

Interactive Application of Zinc and Herbicides Affects Broad-leaved Weeds, Nutrient Uptake, and Yield in Rice

El-Metwally

Saudy

2020

J Soil Sci Plant Nutr

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Due to the ability of weeds to deplete nutrients from the soil, crop plants become subjected to a complex of abiotic and biotic stresses. Thus, the interactive effects between one of the most important micronutrients, i.e., zinc (Zn) and some herbicides on weeds, rice yield and nutrient uptake were investigated. The experiment was carried out in a randomized complete block design in factorial arrangement using three replicates. Ten combinations of two Zn levels (without Zn, Zn−, and with Zn, Zn+) as well as four herbicides (halosulfuron-methyl, bentazon, azimsulfuron, pyrazosoulfuron-ethyl), and unweeded treatment were investigated. Findings clarified that application of halosulfuron-methyl herbicide whether with Zn− or Zn+ were the effective combinations for decreasing weed biomass. Halosulfuron-methyl and pyrazosoulfuron-ethyl had similar impact either with Zn− or with Zn+ resulted in minimum values of K uptake by weeds. The increases in grain yield ha −1 due to the application of halosulfuron-methyl, pyrazosoulfuron, azimsulfuron, and bentazon reached 13.4, 15.9, 21.3, and 24.8%, respectively, under Zn+ greater than Zn−. Halosulfuron-methyl x Zn+ was the promising interaction treatment for increasing P, K, and Zn uptakes by rice. Correlation coefficient showed that fertile panicle number, fertile grain number, rice N and K uptakes, weed biomass, and weed P uptake were the most closely associated traits with grain yield. Our study proved that there is a positive correlation between Zn and the applied herbicides in rice. Zn application alleviated the herbicidal pressure (abiotic stress) and decreased weed harmful impacts (biotic stress) on rice plants. Thus, it should be focused on the complementary effect between Zn and applied herbicides in breeding programs for generating new rice genotypes which are efficient in Zn utilization and tolerant to herbicides.

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Effects of Zinc on Growth and Physiological Characters of Flag Leaf and Grains of Winter Wheat after Anthesis

Cited by 10 publications

References 15 publications

Zinc and Iron Concentration as Affected by Nitrogen Fertilization and Their Localization in Wheat Grain

Zinc and Iron Concentration as Affected by Nitrogen Fertilization and Their Localization in Wheat Grain

Synergistic use of nitrogen and zinc to bio-fortify zinc in wheat grains

Interactive Application of Zinc and Herbicides Affects Broad-leaved Weeds, Nutrient Uptake, and Yield in Rice

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