Evaluation of Maize Hybrids for Tolerance to High Temperature Stress in Central Punjab

Rahman, Saleem Ur; Arif, Muhammad; Hussain, Khadim; Hussain, Shahid; Mukhtar, Tanweer; Razaq, Abdul; Iqbal, Rana Aftab

doi:10.7726/ajbebt.2013.1003

Cited by 14 publications

(16 citation statements)

References 25 publications

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“…For example, HQPM-1 and HHM-1 are tolerant to both cold and frost, while HM-1 is tolerant to frost only. In Pakistan, YH-1898, KJ Surabhi, FH-793 ND-6339, and NK-64017 showed reasonable heat tolerance and produced higher grain yield per unit area as compared to other maize hybrids under high-temperature condition (Rahman et al 2013). The International Maize and Wheat Improvement Center (CIMMYT), which is collaborating with several national agricultural institutions and private sectors in South Asian countries in developing and deploying improved climate-resilient maize varieties, has achieved significant progress in developing and deploying elite heat-tolerant maize varieties (Cairns and Prasanna 2018).…”

Section: Crop Diversification Cropping System Optimization and Manamentioning

confidence: 91%

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Climate change and agriculture in South Asia: adaptation options in smallholder production systems

Aryal

Sapkota

Khurana³

et al. 2019

Environ Dev Sustain

433

156

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Agriculture in South Asia is vulnerable to climate change. Therefore, adaptation measures are required to sustain agricultural productivity, to reduce vulnerability, and to enhance the resilience of the agricultural system to climate change. There are many adaptation practices in the production systems that have been proposed and tested for minimizing the effects of climate change. Some socioeconomic and political setup contributes to adaptation, while others may inhibit it. This paper presents a systematic review of the impacts of climate change on crop production and also the major options in the agricultural sector that are available for adaptation to climate change. One of the key conclusions is that agricultural practices that help climate change adaptation in agriculture are available, while the institutional setup to implement and disseminate those technical solutions is yet to be strengthened. Thus, it is important to examine how to bring the required institutional change, generate fund to invest on these changes, and design dynamic policies for long-term climate change adaptation in agriculture rather than a mere focus on agricultural technology. This is one of the areas where South Asian climate policies require reconsidering to avoid possible maladaptation in the long run.

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Section: Crop Diversification Cropping System Optimization and Manamentioning

confidence: 91%

“…Major stress-tolerant maize varieties in South Asia. Source: Compiled by authors from CIMMYT website and also with personal communications with CIMMYT maize scientists, Press Information Bureau, Government of India, Ministry of Agriculture and Farmers Welfare (http://pib.nic.in/newsi te/Print Relea se.aspx?relid =12399 9), andRahman et al (2013) …”

mentioning

confidence: 99%

Climate change and agriculture in South Asia: adaptation options in smallholder production systems

Aryal

Sapkota

Khurana³

et al. 2019

Environ Dev Sustain

433

156

View full text Add to dashboard Cite

show abstract

“…Being a C4 plant, maize efficiently uses solar radiations and produces higher yields with wider adoptability. However, crop growth and development get reduced under elevated temperature (≥35 ○ C) (Rahman et al, 2013;Ur-Rehman et al, 2015). In maize, grain yield may get reduced up to 101 kg ha -1 day -1 when temperature reaches near 35 ○ C at pollination and grain filling stage (Rahman et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Characterization of Indigenous and Exotic Maize Hybrids for Grain Yield and Quality Traits under Heat Stress

Yousaf¹

2018

IJAB

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Heat stress is a major environmental constraint in crop production, worldwide. Identification and selection of suitable cultivars and traits for high temperature tolerance is vital to produce heat resilient genotypes. To find out superior genotypes and plant parameters, 14 maize hybrids of local and exotic origin, were evaluated under heat stress conditions. Evaluation of maize genotypes was done for morphological, phenological and quality related traits i.e., days to 50% tasseling, days to 50% silking, plant height, cob height, cob length, thousand grain weight, protein contents, oil contents, shelling (%) and grain yield under heat stress. Results revealed presence of high genetic variability among maize hybrids for yield and quality related traits. Association analysis showed that thousand grain weight (0.6328 *) cob height (0.5982 *) and protein contents (-0.5259 *) had significant relationship with grain yield. Principal component and biplot analysis were performed to assess genetic diversity and heat tolerance among maize genotypes. Locally bred hybrids FH-988, FH-922, FH-1046 and YH-1898 were found to be the most heat tolerant hybrids and possessed maximum diversity for yield and quality related traits under heat stress. These results could be implied for characterization and further improvement of maize germplasm to produce heat resilient maize genotypes.

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“…Surabhi’, ‘FH‐793 ND‐6339’ and ‘NK ‐64017’ provided stable yield under HS (Rahman et al. ). Important cultivars of tomato ‘Fresh market 9’, ‘Saladette’, ‘Processor 40’ and ‘Solar set’ have been reported to set fruit under HS (Abdul‐Baki ).…”

Section: Harnessing Crop Germplasm Repertoire For Breeding Against Hsmentioning

confidence: 99%

“…Apart from the genotypes described above, several hybrids including 'YH-1898', 'KJ. Surabhi', 'FH-793 ND-6339' and 'NK -64017' provided stable yield under HS (Rahman et al 2013). Important cultivars of tomato 'Fresh market 9', 'Saladette', 'Processor 40' and 'Solar set' have been reported to set fruit under HS (Abdul-Baki 1991).…”

Section: Molecular Mechanism Underlying Hs Acclimationmentioning

confidence: 99%

Heat stress in crop plants: its nature, impacts and integrated breeding strategies to improve heat tolerance

2014

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Increasing severity of high temperature worldwide presents an alarming threat to the humankind. As evident by massive yield losses in various food crops, the escalating adverse impacts of heat stress (HS) are putting the global food as well as nutritional security at great risk. Intrinsically, plants respond to high temperature stress by triggering a cascade of events and adapt by switching on numerous stress-responsive genes. However, the complex and poorly understood mechanism of heat tolerance (HT), limited access to the precise phenotyping techniques, and above all, the substantial G 9 E effects offer major bottlenecks to the progress of breeding for improving HT. Therefore, focus should be given to assess the crop diversity, and targeting the adaptive/morpho-physiological traits while making selections. Equally important is the rapid and precise introgression of the HT-related gene(s)/QTLs to the heat-susceptible cultivars to recover the genotypes with enhanced HT. Therefore, the progressive tailoring of the heat-tolerant genotypes demands a rational integration of molecular breeding, functional genomics and transgenic technologies reinforced with the next-generation phenomics facilities.

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Evaluation of Maize Hybrids for Tolerance to High Temperature Stress in Central Punjab

Cited by 14 publications

References 25 publications

Climate change and agriculture in South Asia: adaptation options in smallholder production systems

Climate change and agriculture in South Asia: adaptation options in smallholder production systems

Characterization of Indigenous and Exotic Maize Hybrids for Grain Yield and Quality Traits under Heat Stress

Heat stress in crop plants: its nature, impacts and integrated breeding strategies to improve heat tolerance

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