Evaluation of Local and Multinational Maize Hybrids for Tolerance Against High Temperature using Stress Tolerance Indices

Rehman, Saleem Ur; Yousaf, Muhammad Irfan; Hussain, Mozammil; Hussain, Khadim; Hussain, Shahid; Bhatti, Muhammad Husnain; Hussain, Dilbar; Ghani, Aamir; Razzaq, Abdul; Akram, Muhammad; Ibrar, Iqra; Ahmed, Muhammad Shakeel; Kohli, Shoaib Anwar; Siddiq, Muhammad

doi:10.17582/journal.pjar/2022/35.1.36.46

Cited by 5 publications

(5 citation statements)

References 18 publications

(29 reference statements)

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“…Among maize hybrids, YH-5482 and YH-5395 out-performed other hybrids under water stress conditions while JPL-1908 and NK-8441 were proved to be fairly drought susceptible hybrids based on their agro-morphological traits. These hybrids (YH-5482 and YH-5395) were also proved as heat tolerant hybrids in the previous studies ( Rahman et al, 2022 ). Therefore, these hybrids could be distributed in large quantities to the farming communities in drought prone areas to improve their livelihood.…”

Section: Discussionsupporting

confidence: 60%

Responses of maize hybrids to water stress conditions at different developmental stages: accumulation of reactive oxygen species, activity of enzymatic antioxidants and degradation in kernel quality traits

Yousaf

Riaz

Shehzad

et al. 2023

PeerJ

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Sustainable maize production under changing climatic conditions, especially heat and water stress conditions is one of the key challenges that need to be addressed immediately. The current field study was designed to evaluate the impact of water stress on morpho-physiological, biochemical, reactive oxygen species, antioxidant activity and kernel quality traits at different plant growth stages in maize hybrids. Four indigenous i.e., YH-5427, YH-5482, YH-5395, JPL-1908, and one multinational maize hybrid i.e., NK-8441 (Syngenta Seeds) were used for the study. Four stress treatments (i) Control (ii) 3-week water stress at pre-flowering stage (iii) 3-week water stress at anthesis stage (iv) 3-week water stress at grain filling/post-anthesis stage. The presence of significant oxidative stress was revealed by the overproduction of reactive oxygen species (ROXs) i.e., H2O2 (1.9 to 5.8 µmole g−1 FW) and malondialdehyde (120.5 to 169.0 nmole g−1 FW) leading to severe negative impacts on kernel yield. Moreover, a severe reduction in photosynthetic ability (50.6%, from 34.0 to 16.8 µmole m−2 s−1), lower transpirational rate (31.3%, from 3.2 to 2.2 mmol m−2 s−1), alterations in plant anatomy, reduced pigments stability, and deterioration of kernel quality was attributed to water stress. Water stress affected all the three studied growth stages, the pre-flowering stage being the most vulnerable while the post-anthesis stage was the least affected stage to drought stress. Antioxidant activity was observed to increase under all stress conditions in all maize hybrids, however, the highest antioxidant activity was recorded at the anthesis stage and in maize hybrids YH-5427 i.e., T-SOD activity was increased by 61.3% from 37.5 U mg−1 pro to 60.5 U mg−1 pro while CAT activity was maximum under water stress conditions 8.3 U mg−1 pro as compared to 10.3 U mg−1 pro under control (19.3%). The overall performance of maize hybrid YH-5427 was much more promising than other hybrids, attributed to its higher photosynthetic activity, and better antioxidant defense mechanism. Therefore, this hybrid could be recommended for cultivation in drought-prone areas.

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Section: Discussionsupporting

confidence: 60%

Responses of maize hybrids to water stress conditions at different developmental stages: accumulation of reactive oxygen species, activity of enzymatic antioxidants and degradation in kernel quality traits

Yousaf

Riaz

Shehzad

et al. 2023

PeerJ

Self Cite

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“…Several researchers also showed that variations among cotton genotypes for key agronomic traits will provide a strong base to run a breeding program to improve an existing genotype or to develop a new cotton variety Aslam et al, 2022;Hussain et al, 2023a;Manan et al, 2022;Munir et al, 2020;Rahman et al, 2022).…”

Section: Resultsmentioning

confidence: 99%

Genotypic Performance Evaluation of Elite Cotton Stains Based on Plant Traits Related to Cotton Yield, Fiber Quality, and Insect/Disease Tolerance Under Heat Stress

AFZAL,

SHAHID,

KHAN

et al. 2024

Biol Clin Sci Res J

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The current study was designed to compare the performance of twelve cotton strains based on their key agronomic and fiber quality-related traits under heat stress conditions. The experiment was laid out under RCBD with three replicates and a 75 cm row-to-row distance was maintained. The data was recorded for plant height, nodes per plant, monopods per plant, sympods per plant, bolls per plant, CLCuV percentage, whitefly occurrence percentage, total chlorophyll contents, peroxidases, fiber length, fiber fineness, and cotton yield. The results revealed the occurrence of significant variations for agronomically important and fiber quality-related traits in cotton strains under heat stress conditions except for CLCuV percentage. The correlation coefficient analysis revealed a strong positive correlation of cotton yield between bolls per plant, nodes per plant, and sympods per plant. The PC-1/PC-2 based biplot analysis reconfirms the results obtained through the correlation analysis and further unveiled that most of the variations in the data were due to transpiration rate, peroxidases, sympods per plant, nodes per plant, bolls per plant, and fiber fineness. The cluster analysis categorizes twelve cotton strains into three clusters, comprising four strains each, respectively, and found that cotton strains GR-4, GR-9, GR-2, and GR-5 were the most productive strains under heat stress conditions. Therefore, these genotypes must be tested in multilocation trials and potential genotypes must be found for heat-prone areas.

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“…The correlation coefficient analysis was used to establish the relationship between studied plant traits in cotton genotypes under heat stress conditions. Plant scientist is widely using this statistical to conclude based on associations between plant traits in several crop species under different climatic conditions (Mumtaz et al, 2018;Yousaf et al 2021a;Yousaf et al, 2021b;Riaz et al;Rahman et al, 2022). The results revealed the presence of a positive correlation of seed cotton yield with plant height, plant population per hectare, bolls per plant, sympodial branches per plant and nodes per plant.…”

Section: Correlation Coefficient Analysismentioning

confidence: 99%

Quantitative Effects of Heat Stress on Fiber Related and Agronomically Important Parameters in Cotton (Gossypium Hirsutum L.)

HUSSAIN¹,

ASLAM²,

YOUSAF³

et al. 2023

Biol Clin Sci Res J

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Climate change is one of the biggest problems for growing crops in a sustainable way around the world. At the cotton research station in Bahawalpur, th is experiment aimed to assess and classify cotton genotypes under conditions of heat stress. The study was done using RCBD with three replications. The distance between plants was 30 cm, and the distance between rows was kept at 75 cm. For key plant and fiber quality traits, data were taken from ten fully guarded plants and chosen randomly. Under conditions of heat stress, ANOVA showed that there were highly significant differences among the plant traits that were studied. The correlation coefficient analysis showed that seed cotton yield has a positive correlation with plant height (r = 0.46), plant population per hectare (r = 0.33), sympodial branches per plant (r = 0.27), number of bolls per plant (r = 0.27) and nodes per plant (r = 0.27) but a negative relationship with staple length (r = -0.35). The multivariate statistical methods of principal component and cluster analysis were used to describe cotton genotypes. Principal component analysis and cluster analysis showed that the most productive and heat-tolerant cotton genotypes were BH-200, BH-254, CIM-600, and BH-341. Also, BH-284 seemed more resistant to CLCuV than the other genotypes. So, rigorous, large-scale, and multilocation testing must be done on these cotton genotypes and plant traits to make cotton genotypes that can handle heat and CLCuV

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Evaluation of Local and Multinational Maize Hybrids for Tolerance Against High Temperature using Stress Tolerance Indices

Cited by 5 publications

References 18 publications

Responses of maize hybrids to water stress conditions at different developmental stages: accumulation of reactive oxygen species, activity of enzymatic antioxidants and degradation in kernel quality traits

Responses of maize hybrids to water stress conditions at different developmental stages: accumulation of reactive oxygen species, activity of enzymatic antioxidants and degradation in kernel quality traits

Genotypic Performance Evaluation of Elite Cotton Stains Based on Plant Traits Related to Cotton Yield, Fiber Quality, and Insect/Disease Tolerance Under Heat Stress

Quantitative Effects of Heat Stress on Fiber Related and Agronomically Important Parameters in Cotton (Gossypium Hirsutum L.)

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