Effects of nitrogen fertilizer rates and waterlogging on leaf physiological characteristics and grain yield of maize

Tian, Guangli; Qi, Dongliang; Zhu, Jianqiang; Yin, Xiaohong

doi:10.1080/03650340.2020.1791830

Cited by 21 publications

(11 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Antioxidant enzyme activity must be maintained at a high level for plants to adapt under waterlogging stress [ 54 ]. Our findings agree with previous studies which revealed that waterlogging stress causes oxidative damage in maize seedlings [ 55 , 56 ]. Increasing KNO 3 levels with the optimum level of melatonin application can also improve antioxidant enzyme (SOD, POD, CAT, and APX) activities in winter rape, cotton, and maize leaves under waterlogging stress conditions [ 11 , 57 ].…”

Section: Discussionsupporting

confidence: 94%

Melatonin and KNO3 Application Improves Growth, Physiological and Biochemical Characteristics of Maize Seedlings under Waterlogging Stress Conditions

Ahmad

Wang

Ihsan

et al. 2022

Biology

View full text Add to dashboard Cite

Waterlogging is one of the serious abiotic stresses that inhibits crop growth and reduces productivity. Therefore, investigating efficient waterlogging mitigation measures has both theoretical and practical significance. The objectives of the present research were to examine the efficiency of melatonin and KNO3 seed soaking and foliar application on alleviating the waterlogging inhibited growth performance of maize seedlings. In this study, 100 µM melatonin and different levels (0.25, 0.50 and 0.75 g) of potassium nitrate (KNO3) were used in seed soaking and foliar applications. For foliar application, treatments were applied at the 7th leaf stage one week after the imposition of waterlogging stress. The results showed that melatonin with KNO3 significantly improved the plant growth and biochemical parameters of maize seedlings under waterlogging stress conditions. However, the application of melatonin with KNO3 treatments increased plant growth characteristics, chlorophyll content, and the net photosynthetic rate at a variable rate under waterlogging stress. Furthermore, melatonin with KNO3 treatments significantly reduced the accumulation of hydrogen peroxide (H2O2) and malondialdehyde (MDA), and it decreased the activity of pyruvate decarboxylase and alcohol dehydrogenase, while increasing enzymatic activities and soluble protein content of maize seedlings under waterlogging stress conditions. Overall, our results indicated that seed soaking with 100 µM melatonin and 0.50 g KNO3 was the most effective treatment that significantly improved the plant growth characteristics, chlorophyll content, photosynthetic rate, and enzymatic activity of maize seedling under waterlogging conditions.

show abstract

Section: Discussionsupporting

confidence: 94%

Melatonin and KNO3 Application Improves Growth, Physiological and Biochemical Characteristics of Maize Seedlings under Waterlogging Stress Conditions

Ahmad

Wang

Ihsan

et al. 2022

Biology

View full text Add to dashboard Cite

show abstract

Section: Plant Growth and Yieldcontrasting

confidence: 95%

“…Although other studies have demonstrated that N limitations to plant growth can occur concurrently with soil waterlogging (e.g., Orchard et al, 1986;Tian et al, 2020), we did not find evidence to suggest that this occurred in this study. If N limitation were present, we would have expected chlorophyll content to decrease from drier to wetter areas of our transects (e.g., Tian et al, 2020), but we did not observe a monotonic spatial trend in chlorophyll content in either cropping system. Moreover, if N or other nutrients were limited waterlogged locations, we would have anticipated late-season LAI plant −1 to decrease from drier to waterlogged areas (e.g., Orchard & Jessop, 1984), but we observed no spatial trend in maize and the opposite trend in sorghum.…”

Section: Plant Growth and Yieldcontrasting

confidence: 95%

Comparative establishment and yield of bioenergy sorghum and maize following pre‐emergence waterlogging

et al. 2021

View full text Add to dashboard Cite

Biofuel feedstocks grown on marginal lands, such as those that experience ephemeral waterlogging, reduce interference with food agriculture. As early-season extreme precipitation events in the U.S. Midwest continue to increase, waterlogging tolerance may play an important role in the productivity of annual biofuel cropping systems. We assessed the establishment and yield of photoperiod-sensitive sorghum [Sorghum bicolor (L.) Moench] and maize (Zea mays L.) after extreme early-season rainfall events in central Illinois. We used paired sorghum and maize transects, spanning from low-lying poorly drained areas to higher better drained areas, to evaluate the response of both cropping systems throughout the 2020 growing season. Sorghum maintained 25% mean emergence rates in areas that experienced the most severe waterlogging, but maize failed to establish under the same conditions. Despite the low establishment, sorghum yields in the poorly drained areas were upwards of 50% of those found in the better drained, whereas maize yields were zero areas in the poorly drained locations. The yield compensation in sorghum resulted from increased tillering, higher productivity per stem, and subsequently higher productivity per plant, which illustrates the greater phenotypic plasticity of sorghum compared to maize. Land managers who are currently seeking to grow annual cellulosic feedstocks on soils that are vulnerable to transient soil waterlogging will likely have more success with photoperiod-sensitive bioenergy sorghum than maize.

show abstract

“…Antioxidative enzymes play an important role in delaying senescence and prolonging the green period of leaves (Procházková & Wilhelmová, 2007). Previous research has shown that water and fertilizer regulation can effectively improve the activities of the antioxidant enzymes SOD, POD, and CAT; reduce the damage of reactive oxygen species to the cell membrane; and delay senescence (Tian et al., 2021). In this study, the increase in the proportion of panicle and grain‐filling fertilizers (N 2 ) increased the activities of SOD, POD, and CAT in the roots in the 0–10 cm layer and in the leaves of rice plants at the heading stage (Figure 5).…”

Section: Discussionmentioning

confidence: 99%

The effect of nitrogen and water management on the yield and endogenous hormone levels of drip‐irrigated rice

et al. 2023

View full text Add to dashboard Cite

Improving the management of water and fertilizers is an effective method for enhancing the seed‐setting performance of rice. This study aimed to explore the regulation of optimized water and nitrogen management on the root‐leaf hormone balance and seed‐setting performance of drip‐irrigated rice. In a 2‐year field experiment, T‐43 (a drought‐resistant cultivar) and LX‐3 (a drought‐sensitive cultivar) were cultivated under two drip irrigation treatments (W1, limited, and W2, deficit) and three nitrogen fertilization treatments (N1, seedling:tillering:panicle:grain‐filling, 30%:50%:13%:7%; N2, 20%:40%:30%:10%; and N3, 10%:30%:40%:20%). Compared with other treatments, the W1N2 treatment increased the seed‐setting rate and grain biomass accumulation (2.7‐9.2% and 4.5‐69.8%) of the two cultivars on the basis of producing a higher effective panicle number, and T‐43 had a much higher seed‐setting rate and yield than LX‐3 (6.8‐14.6%). Increased fertilizer applications at the panicle and grain‐filling stages (N2) enhanced the root oxidation activity (ROA) and the zeatin+zeatin riboside (Z + ZR) and gibberellic acid (GA3) contents in the roots in the 0–10 cm layer and in the leaves from the heading stage to 20 d after heading. The grain biomass accumulation of T‐43 was significantly positively correlated with ABA and Z + ZR in the roots and leaves, while the grain biomass accumulation of LX‐3 was significantly positively correlated with IAA, ABA, Z + ZR/ABA and GA3/ABA in the roots in the 10–20 cm layer. Overall, W1N2 promoted grain biomass accumulation by modulating the Z + ZR and ABA balance in roots and leaves, improved the root–shoot ratio, and enhanced ROA, thereby improving the seed‐setting performance of drip‐irrigated T‐43 rice.This article is protected by copyright. All rights reserved

show abstract

Effects of nitrogen fertilizer rates and waterlogging on leaf physiological characteristics and grain yield of maize

Cited by 21 publications

References 33 publications

Melatonin and KNO3 Application Improves Growth, Physiological and Biochemical Characteristics of Maize Seedlings under Waterlogging Stress Conditions

Melatonin and KNO3 Application Improves Growth, Physiological and Biochemical Characteristics of Maize Seedlings under Waterlogging Stress Conditions

Comparative establishment and yield of bioenergy sorghum and maize following pre‐emergence waterlogging

The effect of nitrogen and water management on the yield and endogenous hormone levels of drip‐irrigated rice

Contact Info

Product

Resources

About