Effect of potassium and sulfur on grain yield, oil concentration and fatty acid profile of sunflower

Ullah, Saif; Anwar, Shazma; Khan, Gul Roz; Anjum, Muhammad Mehran; Ali, Nawab; Jalal, Abdul; Ali, K. I. Mohammed; Khaliq-uz-Zaman,; Miraj, Muhammad; Sohail, Amir

doi:10.19045/bspab.2018.700172

Cited by 2 publications

(4 citation statements)

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“…However, this amenity potassium absorption may suppress the absorption of other elements, resulting in a decrease in total N, total P, and N/P and P/K ratios under high potassium supply conditions (Table 6). Both N/K and P/K ratios in P. chinensis seedlings in both provenances decreased with increasing potassium application, consistent with previous studies [2,62,63].…”

Section: Discussionsupporting

confidence: 91%

Autumnal Potassium Induced Modulations in Plant Osmoprotectant Substances, Nutrient Stoichiometry and Precision Sustainable Seedling Cultivation in Parashorea chinensis

Ullah,

Liu,

Xie

et al. 2024

Forests

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Parashorea chinensis, an endemic tree species in China’s tropical rainforests, holds ecological and economic importance. Challenges like low resistance, poor quality, and low survival rates hinder its successful cultivation. This study explores the potential of autumn potassium fertilization on Parashorea seedlings from two provenances (Napo and Tianyang). The treatments included no fertilizer (CK-1), a single application of 160 mg K·plant−1 (CK-2), and various potassium levels K1, K2, K3, K4, K5, and K6 (corresponding to 0, 40, 80, 160, 320, and 640 mg·K·plant−1, respectively) combined with nitrogen (200 mg·plant−1) and phosphorus (80 mg·plant−1) fertilization. The findings indicate that autumn potassium application, in conjunction with nitrogen (N) and phosphorus (P) fertilization, significantly enhances seedling height and biomass in both provenances, resulting in an average increase of 101% and 89% under the K4 treatment compared to CK-1 and CK-2, comparatively. Both Napo and Tianyang provenances exhibited distinct responses in photosynthetic rate (2.70 μmol·m−2·s−1 and 1.97 μmol·m−2·s−1, respectively) and stomatal conductance (0.042 mol·m−2·s−1 and 0.029 mol·m−2·s−1, respectively) to the K4 treatment, which proved most effective. The chlorophyll content was significantly higher for Napo provenance with the K3 treatment (74.31%, 58.99%), while for Tianyang, it was higher with the K4 treatment (41.48%, 17.36%), compared to CK-1 and CK-2, respectively. Antioxidant enzymes activity, osmoregulatory capacity, and malondialdehyde content all exhibited variations with potassium application levels, with the K4 treatment offering significant benefits. In Napo provenance, lignin (199.82 mg·g−1) and cellulose (252.38 mg·g−1) peaked at K4, while Tianyang exhibited variation, higher lignin (184.25 mg·g−1) at K3, and cellulose (257.73 mg·g−1) at K4. Nutrient content analysis demonstrates that the K4 treatment enhances nutrient absorption and storage, increasing total N (21.56 mg·kg−1), P (4.69 mg·kg−1), and K (13.49 mg·kg−1) content. A comprehensive analysis reveals that the K4 treatment yields the highest quality scores (1.87, 1.85) and membership values (0.82, 0.68) for both Napo and Tianyang seedlings, with Napo seedlings outperforming their Tianyang provenance. Thus, treatment K4 underscores the effectiveness of autumn potassium applications for robust seedling cultivation and adaptation, offering valuable insights for sustainable cultivation practices.

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Section: Discussionsupporting

confidence: 91%

Autumnal Potassium Induced Modulations in Plant Osmoprotectant Substances, Nutrient Stoichiometry and Precision Sustainable Seedling Cultivation in Parashorea chinensis

Ullah,

Liu,

Xie

et al. 2024

Forests

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“…6,18,19 In Pakistan, agronomic biofortification has been proven effective in raising grain Zn content, agricultural productivity, and profitability. 6,20,21 Experimental evidence has demonstrated that the chemical similarity of cadmium and zinc minerals in soil simplifies their uptake as divalent cations in plants. 22 This uptake can be synergistic, additive, or antagonistic, depending on the levels of each metal present.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, zinc (Zn) is an essential nutrient for all living organisms, including plants, animals, and humans. , Studies have demonstrated that zinc deficiency can negatively impact plant development, pollen viability, blooming, and grain yield. , In humans, zinc deprivation can lead to stunted physical growth, a weakened immune system, difficulty in learning, an increased risk of impurities, DNA damage, and disease development. , Globally, zinc deficiency affects more than 30% of the population, making it the 11th leading cause of disease or death worldwide and the fifth most common in developing countries. ,, The efficacy of zinc fertilization (via seed, soil, or leaf treatments) for increasing plant Zn intake has been demonstrated. ,, In Pakistan, agronomic biofortification has been proven effective in raising grain Zn content, agricultural productivity, and profitability. ,, …”

Section: Introductionmentioning

confidence: 99%

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Zinc Foliar Application Mitigates Cadmium-Induced Growth Inhibition and Enhances Wheat Growth, Chlorophyll Contents, and Yield

Qian,

Dawar,

Ullah

et al. 2023

ACS Omega

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Cadmium (Cd) is a toxic heavy metal that significantly threatens plants and the environment. Its toxicity in plants can result in various adverse effects, including reduced growth, altered metabolism, and cell damage. Cadmium can also interfere with nutrient uptake, particularly zinc (Zn), leading to Zn deficiency and further exacerbating Cd toxicity. On the other hand, foliar application of zinc might be a useful strategy to mitigate cadmium (Cd) toxicity in plants. Hence, a pot experiment was conducted with three replications. The wheat plants were treated with various concentrations of Zn as a foliar spray (control, 0.1, 0.2, 0.4, and 0.5%) in Cd-spiked soil in pots. The results showed that foliar use of Zn at 0.4 or 0.5% resulted in higher plant height, grain yield, and dry matter yield than the control group. Using Zn as foliar spray enriched shoot and grain Zn content while reducing Cd content in the shoot and grain. The leaf’s electrolyte leakage (EL) decreased by 15.4, 29.8, 40.7, and 45.9% in the Zn 0.1%, Zn 0.2%, Zn 0.4%, and Zn 0.5% treatments, respectively, compared to the control treatment. Regarding superoxide dismutase (SOD) activity, Zn 0.5% treatment showed a decrease of 42.9% over control. Specifically, the Zn 0.1% showed a 27.2%, Zn 0.2% showed a 56.8%, Zn 0.4% showed a 91.1%, and Zn 0.5% showed a 133.7% increase in total chlorophyll content than control. Based on the results, it is recommended that 0.4% Zn solution may be used for foliar application for enhancing crop productivity and Zn concentration in plants under high Cd stress. Additionally, continued research on the mechanisms of cadmium uptake, transport, and detoxification in plants may lead to the identification of new targets for intervention.

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Effect of potassium and sulfur on grain yield, oil concentration and fatty acid profile of sunflower

Cited by 2 publications

References 4 publications

Autumnal Potassium Induced Modulations in Plant Osmoprotectant Substances, Nutrient Stoichiometry and Precision Sustainable Seedling Cultivation in Parashorea chinensis

Autumnal Potassium Induced Modulations in Plant Osmoprotectant Substances, Nutrient Stoichiometry and Precision Sustainable Seedling Cultivation in Parashorea chinensis

Zinc Foliar Application Mitigates Cadmium-Induced Growth Inhibition and Enhances Wheat Growth, Chlorophyll Contents, and Yield

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