Effect of potassium application in drought-stressed tobacco ( Nicotiana rustica L.) plants: Comparison of root with foliar application

Bahrami-Rad, Sara; Hajiboland, Roghieh

doi:10.1016/j.aoas.2017.08.001

Cited by 74 publications

(37 citation statements)

References 30 publications

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“…() found that under stress, the weight of the above‐ground parts of plants, plant growth height, number of newly developed leaves and LAI decreased with the severity of treatment. Bahrami‐Rad and Hajiboland () found that the leaves increased the leaf water potential, relative water content and turgor under both well‐watered and drought conditions. Therefore, the research on the new compound resistance type microbial fertilizer has brought the gospel to the modern agricultural production, which not only can improve the problems of soil fertility deficiency and frequent drought, but also promote the crops growth.…”

Section: Resultsmentioning

confidence: 99%

“…() showed that EM bio‐organic fertilizer could improve net photosynthesis rate, stomatal conductance and evapotranspiration rate of leaves in the growth period. Bahrami‐Rad and Hajiboland () found that under drought conditions, photosynthesis and transpiration activities increased upon K application, leading to a reduced water use efficiency. Ryan et al .…”

Section: Resultsmentioning

confidence: 99%

“…In addition, drought is the most devastating stress factor that affects the growth and yield of various crops (Tardieu et al, ). One of the initial responses to water deficiency is stomatal closure, which depresses in turn photosynthesis and the ability of plants to produce dry matter (Farooq et al, ; Bahrami‐Rad and Hajiboland, ). Therefore, the photosynthetic characteristics in this study decreased with the increase of drought stress.…”

Section: Resultsmentioning

confidence: 99%

“…Chen et al (2012) showed that EM bio-organic fertilizer could improve net photosynthesis rate, stomatal conductance and evapotranspiration rate of leaves in the growth period. Bahrami-Rad and Hajiboland (2017) found that under drought conditions, photosynthesis and transpiration activities increased upon K application, leading to a reduced water use efficiency. Ryan et al (2013) indicated that compared with well-watered controls, the droughted nonemitting plants significantly decreased operating and maximum efficiencies of photosystem II photochemistry, lower leaf and whole-plant water productivity (WP).…”

Section: Effect Of Different Treatments On Photosynthetic Characterismentioning

confidence: 99%

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Influences of Drought and Microbial Water‐Retention Fertilizer on Leaf Area Index and Photosynthetic Characteristics of Flue‐Cured Tobacco

Yang

Shao

Mao

et al. 2019

Irrigation and Drainage

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Drought has become a severe and frequently happening issue in the Guizhou province of China due to unevenly distributed rainfall and long‐term continuous cropping. Since drought and continuous cropping could be significant in causing the soil environment to deteriorate, measures which are beneficial for improving the growth of crops need are of great concern. In this study, drought conditions and a microbial water‐retention fertilizer (MWF) were applied as influencing factors for the leaf area index (LAI) and photosynthetic characteristics of flue‐cured tobacco. Under different drought conditions, the largest leaf area was obtained in normal conditions combined with 45 g basin−1 MWF (T13), which significantly increased by 32.0% when compared to normal conditions combined with 0 g basin−1 MWF (T1). An index model was further used to validate the above‐mentioned results and the correlation coefficients of LAI among different treatments were precisely simulated (0.981–0.993). The MWF had remarkable effects on tobacco's net photosynthetic rate (Pn), stomatal conductance (Gs), intercellular CO2 concentration (Ci) and transpiration rate (Tr). Furthermore, normal conditions (550 mm irrigation) combined with MWF (45 g basin−1) proved to be the preferable strategy for improving water use efficiency as well as the tobacco plantation. The results might provide theoretical and practical guidance for the growth of crops in areas with water shortage. © 2019 John Wiley & Sons, Ltd.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Effect Of Different Treatments On Photosynthetic Characterismentioning

confidence: 99%

See 2 more Smart Citations

Influences of Drought and Microbial Water‐Retention Fertilizer on Leaf Area Index and Photosynthetic Characteristics of Flue‐Cured Tobacco

Yang

Shao

Mao

et al. 2019

Irrigation and Drainage

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“…The reproductive growth particularly flowering and boll setting are highly sensitive to low soil water potentials. Potassium, being involved in stomatal regulation and cell water relations, plays significant role in conferring drought resistance to plants under field conditions 5 . Use of K fertilizer can minimize the effects of drought stress and drought sensitive varieties are more responsive to K fertilizers than drought tolerant ones 6 .…”

Section: Introductionmentioning

confidence: 99%

Early maturing Bt cotton requires more potassium fertilizer under water deficiency to augment seed-cotton yield but not lint quality

Rizwan

Asghar

Qureshi

et al. 2019

Sci Rep

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Exhaustive crops such as cotton require potassium (K) in copious amounts as compared to other crops. High yielding cultivars in cotton-wheat cropping system, have further increased its demand in cotton growing areas of Pakistan. As cotton is grown in arid and semiarid areas, therefore often prone to water deficiency. The reproductive growth particularly flowering and boll setting are highly sensitive to low soil water potentials, where enough K supply can play a vital role. In this two-year field studies, three cultivars (early, mid and late maturing) were cultivated at two K fertilizer levels 100, 200 kg K ha −1 along with control with no K fertilizer application at two irrigation levels. In first irrigation level, water was applied as per full irrigation schedule, while in water deficit irrigation water was applied at deficit irrigation schedule started after flowering till harvesting. It has been revealed that K application has impact on boll setting as well as seed cotton yield, however early and mid-maturing cultivars are more responsive to K fertilization. Furthermore, irrigation level had significant impact against K fertilization and relatively better response was observed in deficit irrigation as compared to full irrigation. Nevertheless, fiber quality parameters were unaffected by K fertilization. Considering the best benefit cost ratio under water deficiency, it is concluded that 100 kg K 2 O ha −1 should be applied at the time of seed bed preparation for economical seed-cotton yield of early maturing Bt cotton.

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Plant Nutrients for Crop Growth, Development and Stress Tolerance

Ahmed

Hasanuzzaman

Raza

et al. 2020

Sustainable Agriculture in the Era of Climate Change

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Effect of potassium application in drought-stressed tobacco ( Nicotiana rustica L.) plants: Comparison of root with foliar application

Cited by 74 publications

References 30 publications

Influences of Drought and Microbial Water‐Retention Fertilizer on Leaf Area Index and Photosynthetic Characteristics of Flue‐Cured Tobacco

Influences of Drought and Microbial Water‐Retention Fertilizer on Leaf Area Index and Photosynthetic Characteristics of Flue‐Cured Tobacco

Early maturing Bt cotton requires more potassium fertilizer under water deficiency to augment seed-cotton yield but not lint quality

Plant Nutrients for Crop Growth, Development and Stress Tolerance

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