Potassium Management for Improving Growth and Grain Yield of Maize (Zea mays L.) under Moisture Stress Condition

Amanullah, .; Iqbal, Asif; Ullah, Irfan; Hidayat, Zeeshan

doi:10.1038/srep34627

Cited by 80 publications

(64 citation statements)

References 29 publications

(22 reference statements)

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“…Hussain et al [21] reported a significant interaction between mung bean genotypes and potassium application with respect to protein content and seed yield. Amanullah et al [24] reported that foliar and soil applied potassium improved maize performance under moisture stress. Nevertheless, there is a limited research on interactive response of potassium application and maize genotypes to water stress for yield related traits and drought susceptibility index especially under arid conditions.…”

Section: Introductionmentioning

confidence: 99%

Potassium Application Improves Grain Yield and Alleviates Drought Susceptibility in Diverse Maize Hybrids

Ul‐Allah

Ijaz

Nawaz

et al. 2020

Plants

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Maize (Zea mays L.) is an important component of global food security but its production is threatened by abiotic stresses in climate change scenarios, especially drought stress. Many multinational companies have introduced maize hybrids worldwide which have variable performance under diverse environmental conditions. The maize production is likely to be affected by a future water crisis. Potassium (K) is a well-known macronutrient which improves the performance of cereals under abiotic stresses. In this field experiment, we assessed the influence of soil applied K on the productivity of diverse maize hybrids grown under well-watered and drought stress conditions. The study consisted of three K levels viz., control (no KCl), KCl at 50 kg ha−1, and KCI at 75 kg ha−1 factorally combined with two irrigation levels (i.e., normal recommended irrigation, well-watered condition, and half of the recommended irrigation, drought stress condition) and eight maize hybrids. Irrigation was kept in main plots, potassium in subplot, and maize hybrids in sub-subplots. The results revealed that performance of the maize hybrids was significantly influenced by all three factors, and the interaction of irrigation with potassium and irrigation with hybrids was significant; results being non-significant for all other interactions. Potassium application improved yield traits and water productivity under both normal and water stress conditions but effect was more prominent under water stress conditions than normal conditions. Potassium application also alleviated drought susceptibility of all maize hybrids. In all cases, the performance of maize hybrids was maximum under potassium application at 75 kg ha−1.

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Section: Introductionmentioning

confidence: 99%

Potassium Application Improves Grain Yield and Alleviates Drought Susceptibility in Diverse Maize Hybrids

Ul‐Allah

Ijaz

Nawaz

et al. 2020

Plants

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“…Concerning the effect of potassium on total phenolic content in potato tubers, illustrated results showed that the healthy plants (higher yield) which received 120 kg/feddan had the lowest phenolic content, while the control plants had the highest values, which may indicate that the control plants might be subjected to stress during the growing seasons. This effect may be attributed to the role of potassium in alleviation of abiotic stress (Cakmak, 2005;Amanullah and Irfanullah, 2016).…”

Section: Discussionmentioning

confidence: 99%

“…For instance, Cutcliffe and Munro (1976) reported a slight early season advantage from high rate of potassium. One the other hand, Pettigrew (2003) and Amanullah et al (2016) stated that the earlier crop maturity of cotton and maize was associated with low dose of potassium. While, Abay and Sheleme (2011) confirmed that potassium application has no effect on physiological maturity of potato.…”

Section: Accordingmentioning

confidence: 99%

Early potato production is positively affected by potassium fertilization

Yousef¹,

Nasef²

2019

HJSC

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with aim of investigation of potassium application on earliness of potato. To achieve this goal, five different net potassium levels: 0, 60, 90, 120, and 150 kg/Feddan were applied and potato tubers were harvested at two harvesting times: 90 and 105 days after planation. The results reported that both potassium application and harvesting time as well as their interaction significantly affected most of the studied traits. The highest values of plant height, plant fresh weight, plant dry matter, tuber dry matter, marketable yield/feddan, total yield/feddan, soluble solid content (SSC), nitrogen (N) content and potassium (K) content were obtained from the plants received 120 kg K and harvested at 105 days after planation. While, the potassium fertilized plant at 120 kg/feddan and harvested at 90 days achieved the maximum values of total yield per plant, total sugar and non-reducing sugars. However, the difference between these two treatments was not necessarily significant for some traits. In addition, the results of the current study interestingly clarified that potassium level (150 kg) negatively affected some yield attributes in both harvesting times compared to the other potassium levels. Consequently, the result of the current study indicates that high level of potassium (120 kg) can hasten the earliness of potato, which may achieve notable financial profits for potato growers.

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“…-Leaf proline content, in µg/g fresh weight, according to Bates et al (1973). -Potassium, sodium contents and Na + /K + ratio in plants leaves as mmole/kg dry weight, according to Allen et al (1974). At harvest time, yield and yield components were determined for each crop under study as well as potassium and protein percentage in grains and/or seeds, according to Horneck and Miller (1998).…”

Section: • T2-t1= Number Of Days Between Two Successive Samples (Day)mentioning

confidence: 99%

Response of some Field Crops to Foliar Spray by Potassium on Growth, Productivity and Economic Feasibility under Saline Soils Conditions

El-Hawary

Ibrahim

2018

Journal of Plant Production

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A field trail was conducted at three sites in East Delta Region, Egypt, during the two successive summer seasons 2015 and 2016 as well as winter seasons 2015/2016 and 2016/2017 to study the physiological response of some field crops grown under saline soil conditions to foliar spraying with potassium at 1 and 2% K 2 O in the form of K-leaf fertilizer besides control treatment. Results indicated that plant height, leaf area index (LAI), crop growth rate (CGR), net assimilation rate (NAR), photosynthetic pigments, soluble sugars, potassium content in leaves, potassium and protein percentages in grains or seeds, as well as yield and yield components for all crops under study were significantly increased when plants received 1% or 2% K 2 O. Also, significant increase was achieved in proline, Na + , and Na + /K + ratio in leaves when plants sprayed with water (control) as compared with other potassium treatments for all crops wheat, barley, faba bean, rice, maize and clover. Foliar spraying with 2% K 2 O as K-leaf fertilizer was more efficient for increasing growth, biochemical, potassium percentage, protein percentage and yield of wheat, barley, faba bean, rice, maize and clover crops as compared to untreated potassium fertilizer (control) under saline soils conditions.

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Potassium Management for Improving Growth and Grain Yield of Maize (Zea mays L.) under Moisture Stress Condition

Cited by 80 publications

References 29 publications

Potassium Application Improves Grain Yield and Alleviates Drought Susceptibility in Diverse Maize Hybrids

Potassium Application Improves Grain Yield and Alleviates Drought Susceptibility in Diverse Maize Hybrids

Early potato production is positively affected by potassium fertilization

Response of some Field Crops to Foliar Spray by Potassium on Growth, Productivity and Economic Feasibility under Saline Soils Conditions

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