scholarly journals Can Technological Development Compensate for the Unfavorable Impacts of Climate Change? Conclusions from 50 Years of Maize (Zea mays L.) Production in Hungary

Atmosphere ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 1350
Author(s):  
László Huzsvai ◽  
József Zsembeli ◽  
Elza Kovács ◽  
Csaba Juhász
Keyword(s):  
Climate Change ◽  
Zea Mays ◽  
Heat Stress ◽  
Prediction Models ◽  
Zea Mays L ◽  
Technological Development ◽  
Linear Regression Analysis ◽  
Daily Maximum ◽  
Extreme High Temperature ◽  
Yield Depression

The goals of our study were to evaluate the historical aspects of maize (Zea mays L.) production in Hungary, and to provide a prognosis for the yield for 2050 based on the trends of temperature, precipitation, and climatic water balance changes. Different climate zones for the period of 1970–2019 were investigated by means of correlation analyses, normality tests, time series analysis, and multiple linear regression analysis. Two well-distinguishable linear trends in the yields were found, the first representing large-scale farming, and the second starting with the change of the socio-economic system in 1989. The annual amount of precipitation showed high variations both spatially and temporally, although no significant change was identified for the last five decades. In the period 1990–2019, not only were higher temperatures characteristic, but the frequency of extreme high temperature values (Tmax > 30 °C) also increased. We quantified the heat stress, expressing it in heat stress units (HSU, °C) derived from the heat-sum of the daily maximum air temperature values above 30 °C. By 2050, the average increase in HSUs may reach 35 °C. Increasing HSU causes yield depression; according to our estimations, a 1 °C increase in HSU results in a 23 kg ha−1 yield depression of maize. Taking the unfavorable effect of heat stress and technological development into consideration, the average domestic yield of maize will be 8.2 t ha−1. Our study revealed that without taking technological development into consideration, prediction models may overestimate the adverse effect of climate change on crop production.

Transcriptomic analysis of the maize (Zea mays L.) inbred line B73 response to heat stress at the seedling stage

Gene ◽  
2019 ◽  
Vol 692 ◽  
pp. 68-78 ◽  
Author(s):  
Yexiong Qian ◽  
Qiaoyu Ren ◽  
Jing Zhang ◽  
Liang Chen
Keyword(s):  
Zea Mays ◽  
Heat Stress ◽  
Inbred Line ◽  
Zea Mays L ◽  
Transcriptomic Analysis ◽  
Seedling Stage

scholarly journals Modeling soil organic carbon in corn ( Zea mays L.)-based systems in Ohio under climate change

2017 ◽  
Vol 72 (3) ◽  
pp. 191-204 ◽  
Author(s):  
E.D.v.L. Maas ◽  
R. Lal ◽  
K. Coleman ◽  
A. Montenegro ◽  
W.A. Dick
Keyword(s):  
Climate Change ◽  
Zea Mays ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Zea Mays L

Physiological and transcriptional response to heat stress in heat-resistant and heat-sensitive maize (Zea mays L.) inbred lines at seedling stage

PROTOPLASMA ◽  
2020 ◽  
Vol 257 (6) ◽  
pp. 1615-1637
Author(s):  
De-Chuan Wu ◽  
Jia-Fei Zhu ◽  
Zhong-Ze Shu ◽  
Wei Wang ◽  
Cheng Yan ◽  
...  
Keyword(s):  
Zea Mays ◽  
Heat Stress ◽  
Zea Mays L ◽  
Transcriptional Response ◽  
Inbred Lines ◽  
Seedling Stage ◽  
Heat Resistant

Comparison of teosinte (Zea mexicana L.) and inter-subspecific hybrids (Zea mays L.×Zea mexicana) for high forage yield under two sowing regimes

2015 ◽  
Vol 66 (1) ◽  
pp. 49 ◽  
Author(s):  
Imtiaz Akram Khan Niazi ◽  
Saeed Rauf ◽  
Jaime A. Teixeira da Silva ◽  
Hassan Munir
Keyword(s):  
Zea Mays ◽  
Heat Stress ◽  
Zea Mays L ◽  
Agronomic Traits ◽  
Plant Biomass ◽  
Stress Conditions ◽  
Forage Yield ◽  
Total Biomass ◽  
Percentage Survival ◽  
Biomass Plant

This study was undertaken to evaluate the response of teosinte (Zea mexicana L.) and intersubspecific hybrids to heat stress, in particular productivity. Unlike maize (Zea mays L.), teosinte demonstrated thermophilic properties, namely lower heat injury, sustained chlorophyll content under heat stress (36−45°C) and high percentage survival of seedlings (at 55°C). Teosinte also had the ability to produce large plant biomass (27% and 55% higher yield than maize under non-stressed and stress conditions, respectively) and therefore could be exploited as a forage crop. However, teosinte forage had low animal intake (1.48 kg day–1) because of high pubescence density (10.38 view–1) and low sweetness (9.90°Brix). There was a high percentage of heterosis in variable intersubspecific crosses and traits, and a high magnitude of over-dominance for many traits, for example 5.93–7.06 for total biomass plant–1. Hybrids showed additional advantages, including high oil (20% and 4%) and protein (14% and 25%) contents compared with teosinte under non-stressed and stress conditions, respectively. Moreover, inter-subspecific hybrids were also resistant to heat stress, with the capacity for sustaining growth for a longer period (20% and 33% higher than maize under non-stressed and stress conditions, respectively). Genetic distance between parents—calculated from stable agronomic traits—could be used to select parents for high heterosis under both heat stress and non-stressed conditions.

scholarly journals Combining Ability for Quantitative Traits Under Normal And Heat Stress Conditions in Maize (Zea Mays L.)

2021 ◽  
Vol 50 (3) ◽  
pp. 659-669
Author(s):  
Neha Rani ◽  
Ram Balak Prasad Nirala ◽  
Awadhesh Kumar Pal ◽  
Tushar Ranjan
Keyword(s):  
Zea Mays ◽  
Heat Stress ◽  
Normal Condition ◽  
Combining Ability ◽  
Zea Mays L ◽  
Stress Conditions ◽  
High Yield ◽  
Components Of Variance ◽  
Reciprocal Crosses ◽  
Heat Stress Condition

Investigation was carried out to ascertain the genetic architecture for heat tolerance and yield components from diallel crosses in maize (Zea mays L.). The combining ability in both the normal and heat stress conditions revealed highly significant mean squares due to general combining ability (GCA) and specific combining ability (SCA) in both the direct and reciprocal crosses for all the characters except for anthesis-silking interval in normal condition of the reciprocal crosses. Estimate of components of variance for 13 characters revealed higher SCA variance than that of GCA and reciprocal crosses for all the characters. CML 411 was good general combiner for grain yield in both the conditions, whereas, CML 306 and CML 307 were good general combiners in heat stress condition, and CML 164, CML 304 and CML 305 were average general combiners in normal condition. On the basis of high yield, high SCA and at least high GCA of seed parent, the CML 411*CML 305 and CML 411*CML 307 were identified as promising hybrids for normal and heat stress conditions, respectively. Bangladesh J. Bot. 50(3): 659-669, 2021 (September)

scholarly journals The Effect of Climate Change on Spring Maize (Zea mays L.) Suitability across China

2018 ◽  
Vol 10 (10) ◽  
pp. 3804 ◽  
Author(s):  
Yuhe Ji ◽  
Guangsheng Zhou ◽  
Qijin He ◽  
Lixia Wang
Keyword(s):  
Climate Change ◽  
Zea Mays ◽  
Zea Mays L ◽  
Threshold Value ◽  
Affected Area ◽  
Mitigation And Adaptation ◽  
Spring Maize ◽  
New Perspective ◽  
Abrupt Shifts ◽  
The Impact

Spring maize (Zea mays L.) is a thermophilic C4 crop which is sensitive to climate change. This paper provides a detailed assessment of the effect of climate change on the crop from a new perspective, by predicting the probability of the potential distribution of spring maize across China. The affected area of spring maize suitability was identified, and then the affected area was subdivided into the improved area and the deteriorated area. Our results confirmed that there was a detrimental consequence for spring maize suitability under observed climate change from 1961–1990 to 1981–2010. However, our results revealed that warming scenarios of 1.5 °C and 2 °C were helpful for the suitable area expansion of spring maize. The affected area was smaller under warming scenarios than under historical climate change, revealing that temperature rise alone was not enough to trigger a “tipping point” (a threshold value after which abrupt shifts occur) for spring maize, even if warming is 2 °C above the level of 1961–1990. Our results not only benefit China in the design of mitigation and adaptation strategies, but also provide a theoretical judgement that the impact of global warming on the crop ecosystem is not serious if other climate factors remain unchanged.

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