Nutritional and Physiological Significance of Potassium Application in Maize Hybrid Crop Production

Bu, M. Ahmad Alias Haji A.; Ahmad, Riaz; Iqbal, Javaid; Maqbool, Mehwish; Ali, Anser; Ishaque, Muhammad; Hussain, Saddam

doi:10.3923/pjn.2012.187.202

Cited by 32 publications

(8 citation statements)

References 105 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In another study, it was found that K application increased fertilization by adjusting the period between tasseling and silking, which resulted in a greater number of grain rows, grain cob −1 , and produced higher grain weight cob −1 (Ur Rehman and Ishaque, 2011 ). Moreover, K, in combination with N, has a synergistic influence on the uptake, translocation, and utilization of nutrients, and it reduces the percentage of senescent stalks, lodging and increases crushing strength and rind thickness (Bukhsh et al, 2012 ).…”

Section: Management Of Stem Lodging and Kernel Abortion In Maizementioning

confidence: 99%

Combating Dual Challenges in Maize Under High Planting Density: Stem Lodging and Kernel Abortion

et al. 2021

View full text Add to dashboard Cite

High plant density is considered a proficient approach to increase maize production in countries with limited agricultural land; however, this creates a high risk of stem lodging and kernel abortion by reducing the ratio of biomass to the development of the stem and ear. Stem lodging and kernel abortion are major constraints in maize yield production for high plant density cropping; therefore, it is very important to overcome stem lodging and kernel abortion in maize. In this review, we discuss various morphophysiological and genetic characteristics of maize that may reduce the risk of stem lodging and kernel abortion, with a focus on carbohydrate metabolism and partitioning in maize. These characteristics illustrate a strong relationship between stem lodging resistance and kernel abortion. Previous studies have focused on targeting lignin and cellulose accumulation to improve lodging resistance. Nonetheless, a critical analysis of the literature showed that considering sugar metabolism and examining its effects on lodging resistance and kernel abortion in maize may provide considerable results to improve maize productivity. A constructive summary of management approaches that could be used to efficiently control the effects of stem lodging and kernel abortion is also included. The preferred management choice is based on the genotype of maize; nevertheless, various genetic and physiological approaches can control stem lodging and kernel abortion. However, plant growth regulators and nutrient application can also help reduce the risk for stem lodging and kernel abortion in maize.

show abstract

Section: Management Of Stem Lodging and Kernel Abortion In Maizementioning

confidence: 99%

Combating Dual Challenges in Maize Under High Planting Density: Stem Lodging and Kernel Abortion

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Maize (Zea mays L.) is an important cereal crop with a wider range of uses than other cereals [1]. It ranks 3rd after wheat and rice in the world's production of cereal crops and is known as the king of grain crops [2,3]. Maize is valuable as a source of food, feed, oil, and biofuel [4].…”

Section: Introductionmentioning

confidence: 99%

Ameliorative Effects of Calcium Sprays on Yield and Grain Nutritional Composition of Maize (Zea mays L.) Cultivars under Drought Stress

2021

View full text Add to dashboard Cite

Drought stress is seriously affecting maize production. To investigate the influence of calcium (Ca) foliar application on maize production and chemical composition of grains under drought stress, two experiments were carried out at Cairo University Research Station, Giza, Egypt, during the summer seasons of 2018 and 2019. The experimental design was split-split plot design with a completely randomized blocks arrangement with three replications. Water regimes were assigned to the main plots [100 (control), 75, and 50% of estimated evapotranspiration]. Calcium levels (zero and 50 mg/L) were assigned to the sub plots. Maize cultivars (SC-P3444, Sammaz-35 and EVDT) were assigned to the sub-sub plots. Three maize cultivars were sprayed with Ca solution concentration (50 mg/L) under normal and drought conditions. The control treatment (0 mg/L) was sprayed with an equal amount of distilled water for comparison. Results indicated a significant decrease in total yield and grain characteristics [protein, ash, total sugars, nitrogen (N), phosphorus (P), potassium (K), and iron (Fe) contents] as a response of drought. Calcium foliar application significantly increased maize yield, protein, ash, carbohydrates, starch, total sugars, and ionic contents of grains, except for manganese (Mn), under all irrigation levels. Based on the drought tolerance index (DTI), only cultivar SC-P3444 showed drought tolerance while cultivars Sammaz-35 and EVDT were sensitive to drought stress. Foliar application of Ca on SC-P3444 cultivar achieved the highest grain yield per hectare (8061 kg) under the water regime of 100% of the total evapotranspiration, followed by Sammaz-35 (7570 kg), and EVDT (7191 kg) cultivars. At the water regime of 75% of estimated evapotranspiration (75% irrigation), Ca foliar application increased grain yield by 16, 13 and 14% in SC-P3444, Sammaz-35, and EVDT, respectively. At the water regime of 50% of the estimated evapotranspiration (50% irrigation), Ca foliar application increased grain yield by 17, 16, and 13% in SC-P3444, Sammaz-35, and EVDT, respectively. In brief, Ca had a clear impact on productivity and grain quality with important implications for maize yield under normal and water stress conditions. Our findings demonstrate that foliar application of Ca enabled drought stressed maize plants to survive better under stress. The most water stress tolerant cultivar was SC-P3444 followed by Sammaz-35 and EVDT under drought stress.

show abstract

“…However, characterization of the water deficit is highly complex because it involves the differences between the places, crops and, apart from these effects, the indirect effects induced by fungi, high temperatures, as well as fertility as reported by Paterniani et al (2015), making it difficult to identify the best hybrid. Bukhsh et al (2012) reaffirm that the potassium application not only improves the grain yield, but also the quality characters, as well as a more judicious use of water and ability to tolerate drought. Thus, greater potassium efficiency may also indirectly promote the identification of plants that can better tolerate water stress.…”

Section: Potassium (K)mentioning

confidence: 65%

Agronomic Efficiency of Hybrids of Corn to Nitrogen, Phosphorus and Potassium Targeting Fresh Corn

Resende¹,

Damaso²,

Ávila³

et al. 2019

JAS

View full text Add to dashboard Cite

The efficiency and responsiveness agronomic to the main macronutrients is becoming increasingly important due to the risk of supply, since it is a finite resource. In addition, excess fertilizer decreases the quality of water and air. Thus, the objective of this work was to assess the corn hybrids in terms of their efficiency and responsiveness to nitrogen (N), phosphorus (P) and potassium (K), and identify the ones most suitable for fresh consumption, according to the product type and technological level to be adopted by the farmer. The randomized complete block design in a 10 × 3 (hybrids and doses) factorial scheme was adopted for the experiment, with three replications, for two season crops (2013/14 and 2014/15). Ten hybrids (2B512PW, 2B587PW, 2B707PW, 30F35HR, 30F53YH, AG1051, BRS1055, BM3061, P3646H e P3862YH) were used in isolation under low availability (without application) and partial, of N, P and K, in an isolated manner, also evaluated under the recommended dose, aiming at fresh consumption. The most efficient and responsive hybrid must first be identified in isolation, based on the availability it is subjected to and later, by its sale, focused on fresh consumption. The hybrids indicated for low availability (low technological level) were BRS1055 and 30F53YH, with respect to responsiveness or agronomic efficiency, the hybrid P3862YH was the one that presented the best performance and indicated for technological levels of medium to high, considering the classification obtained for the nitrogen, phosphorus, and potassium for production vegetable corn.

show abstract

Nutritional and Physiological Significance of Potassium Application in Maize Hybrid Crop Production

Cited by 32 publications

References 105 publications

Combating Dual Challenges in Maize Under High Planting Density: Stem Lodging and Kernel Abortion

Combating Dual Challenges in Maize Under High Planting Density: Stem Lodging and Kernel Abortion

Ameliorative Effects of Calcium Sprays on Yield and Grain Nutritional Composition of Maize (Zea mays L.) Cultivars under Drought Stress

Agronomic Efficiency of Hybrids of Corn to Nitrogen, Phosphorus and Potassium Targeting Fresh Corn

Contact Info

Product

Resources

About