Screening of Wheat Genotypes for Water Stress Tolerance Using Soil–Water Relationships and Multivariate Statistical Approaches

Agronomy, Год журнала: 2024, Номер 14(5), С. 1029 - 1029

Опубликована: Май 12, 2024

Drought stress constricts crop production around the world. Employing high-yielding cultivars with drought tolerance might be ideal professional approach to coping its detrimental outcomes. As a result, current study was performed investigate sensitivity and of nine wheat genotypes stress. In randomized block design experiment, were subjected four water treatments: 100%, 85%, 70%, 55% available (AW). Four regimes in two growing seasons counted as eight environmental zones. The leaf’s relations photosynthetic pigment estimated, well growth yield parameters. Univariate multivariate statistical approaches, including new method multi-trait genotype–ideotype distance (MGIDI), used for evaluation. analysis variance revealed that genotype, environment, their interactions had highly significant effect on all traits. same trend shown by additive main effects multiplicative interaction (AMMI) grain across environments. AMMI biplot indicated G8 genotype is most stable terms G7 can withstand droughts up water, while G3 70% water. Based examined traits, this index identify G7, G8, G3, which therefore suggested cultivation during conditions. Furthermore, we found positive correlation between MGIDI, ANOVA, results, indicating desirable identified these procedures being tolerant range soil moisture MGIDI analysis, recommend exhibits higher yield-related traits best drought-tolerant indices.

Язык: Английский

Assessing Salinity, Drought and High Temperature Stress in Maize (Zea mays L.) and Wheat (Triticum aestivum L.) Varieties: Theoretical Combination as Multifactorial Stress

Journal of Agronomy and Crop Science, Год журнала: 2024, Номер 210(6)

Опубликована: Ноя. 22, 2024

ABSTRACT Maize and wheat are two important cereal crops for the food security of world population. However, constant climate change intensification anthropic activities have intensified emergence stressful environmental in various agricultural production systems around world. Therefore, this study we evaluate chlorophyll content, photosynthesis, transpiration grain yield maize exposed to soil salinity, drought high temperatures determine damage intensity these stressing conditions theoretical multifactorial intensity. Field experiments were conducted during 2022 2023 seasons Yaqui Valley, Sonora, Mexico. The treatments consisted cultivation three environments (soil temperatures) a non‐stressful environment (Control), with four repetitions. tolerance index abiotic stresses, as well stress (salinity, temperatures), morphological traits yield, calculated. results reported that physiological severely affected by conditions. High second factor most limits crops, being more harmful than salinity. has greater negative impact on elite varieties. sum increases both especially crop.

Язык: Английский

Does Exogenous Application of salicylic acid induce salt stress tolerance in potentially high-yielding modern wheat cultivars?

Egyptian Journal of Soil Science, Год журнала: 2024, Номер 64(2), С. 507 - 521

Опубликована: Фев. 10, 2024

Salinity is one of the abiotic stresses that affect negatively wheat productivity across globe. In Pakistan, a cash crop. Probably, exogenous application salicylic acid could be helpful to induce salt stress resistance in possibly high-yielding modern cultivars Pakistan (Ujala 2016 and Akbar 2019). A pot experiment complete randomized design was therefore conducted sand-filled plastic containers. These pots were planted with seeds at experimental area Department Botany, Government College Women's University Faisalabad, during winter season 2021-2022. Two levels NaCl [0 150mM] applied along Hoagland's nutrient solution 14-day interval two 100 mg L-1] leaves after 28 DAS. All treatments replicated 4 times. Plants sampled 3 weeks foliar estimate morphological biochemical parameters. significantly lessened shoot root fresh/dry weights. Also, it diminished soluble protein, K+ ion, K+/Na+ ratio when grown under saline conditions compared control. On other hand, salinity raised catalase, superoxide dismutase, ascorbic acid, total phenolic, glycine betaine, hydrogen peroxide, malondialdehyde Na+ ion. Exogenic SA activities peroxidase, calcium, this consequently enhanced (fresh dry) weights also non-stressful condition. conclusion, more effective for both acclimatize The cultivar Akbar-2019 revealed better performance than 2019 most characteristics conditions.

Язык: Английский