Wheat assessment for heat stress tolerance using stress selection indices under distinct planting regimes

Ahmad, Zeeshan; Khan, Naqib Ullah; Gul, Samrin; Azhar, Iqbal Nurul; Ali, Sardar; Ali, Naushad; Khan, Sher Aslam; Hussain, Izhar; Din, Kiramat; Ali, Waqar

doi:10.30848/pjb2022-3(33)

Cited by 2 publications

(2 citation statements)

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“…This demonstrates that the elite germplasm under evaluation had significant diversity for these stress related indices which could be used to improve heat and drought tolerance in wheat through selection breeding (Ali et al, 2015). This finding is consistent with a previous study (Ahmad et al, 2022).…”

Section: Exploration Of Variance For Heat Stress Tolerance Indexsupporting

confidence: 94%

Divergence Assessment of Advanced Bread Wheat Lines under Contrasting Heat Stress Regimes Utilizing Stress Tolerance Indices

Zulkiffal,

Ahmed,

Ahsan

2024

Phytopathogenomics and Disease Control

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Heat stress during the post-anthesis phase significantly impacts wheat cultivation. To evaluate the tolerance of advanced wheat lines to heat stress, stress tolerance indices were used under both normal and post-anthesis heat stress conditions. The results showed a decrease in the average yield of advanced lines under both conditions, indicating the negative impact of heat stress on wheat cultivation. The analysis using PCs, biplot, and ranked clusters revealed that line V-21448 had below-average values for RHSI and %YDR, while V-21243 had values close to the average and all other lines had above-average values. Additionally, under normal conditions, V-19532 had the highest values for RHSI and HYT 100-47 had the lowest values for %YDR. In heat stress conditions, HYT 100-47 had the lowest values for both indices. HYT 100-74 and HYT 100-76 had the highest average values for MNP and YDI and were highly stable in the heat environment. Under normal settings, YDI, RHSI, and % YDR showed a positive correlation, while under heat stress conditions, the same traits showed a negative correlation. MNP had a high positive correlation with Yp and Ys, while YDSI had a negative correlation with Yp but a positive correlation with Ys. These results suggest that these traits are useful for identifying advanced lines with increased yield under both conditions.

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Section: Exploration Of Variance For Heat Stress Tolerance Indexsupporting

confidence: 94%

Divergence Assessment of Advanced Bread Wheat Lines under Contrasting Heat Stress Regimes Utilizing Stress Tolerance Indices

Zulkiffal,

Ahmed,

Ahsan

2024

Phytopathogenomics and Disease Control

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“…Among cereals, wheat (Triticum aestivum L) holds the unique distinction of being the primary cereal crop worldwide and most extensively grown crop within Poaceae family. Due to its extensive cultivation, commonly referred to as the King of Cereals and have substantial role in the international grain market (Ahmad et al, 2022;Bhanu et al, 2018). Wheat flour is widely used as a main diet source by humans worldwide.…”

Section: Introductionmentioning

confidence: 99%

Foliar-Applied Sorghum Water Extract Improves the Productivity of Wheat Planted at Varying Dates

Farooq,

Mubeen,

Asif

et al. 2023

J. Arab. Crops Market.

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Among the cereals, wheat is a key crop fulfilling the food demand of millions of masses around the globe. Late sowing in wheat is the most yield-limiting factor causing 35% yield losses. One approach to compensate for yield losses is boosting crop growth by the application of growth regulators. We checked the role of sorghum water extract that can act as plant-based growth regulators in wheat planted at various dates to cover a wide sowing window. A trial under controlled condition was conducted at the glass house facility of Bahauddin Zakariya University, Multan, Pakistan during 2021-2022. Wheat cultivar Akbar 2019 was sown with an interval of 7 days starting from October 29 to December 03. A pre-determined level of sorghum water extract at 3% concentration was foliar-applied at 30 days after sowing. For comparison, un-treated pots were applied with water spray. Collected data revealed that significantly higher grain yield was obtained from the pot that were sown on November 19 and treated with sorghum water extract followed by same sowing date but was untreated. Data further explained that grain yield and other yield related traits significantly reduced in late planted wheat when compared with timely plantation of wheat. Results concluded that sorghum water extract is a potential plant regulator and its foliar application can enhance the yield of timely as well late planted wheat but for getting maximum yield foliar application should done at timely plantation of wheat at November 19.

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Wheat assessment for heat stress tolerance using stress selection indices under distinct planting regimes

Cited by 2 publications

References 0 publications

Divergence Assessment of Advanced Bread Wheat Lines under Contrasting Heat Stress Regimes Utilizing Stress Tolerance Indices

Divergence Assessment of Advanced Bread Wheat Lines under Contrasting Heat Stress Regimes Utilizing Stress Tolerance Indices

Foliar-Applied Sorghum Water Extract Improves the Productivity of Wheat Planted at Varying Dates

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