Effective selection criteria for screening drought tolerant recombinant inbred lines of sunflower

Abdi, Nishtman; Darvishzadeh, Reza; Maleki, Hamid Hatami

doi:10.2298/gensr1301153a

Cited by 12 publications

(13 citation statements)

References 23 publications

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“…Positive correlation between seed cotton yield in DI and FI shows that high yielding in the DI was also high yielding in FI environment. These results agree with those reported by Ramirez Vallejo and Kelly (1998) and Teran and Singh (2002) in common bean, Abdi et al (2013) in sunflower, Khokhar et al (2012) in barley. However, there have been contradictory reports in the literature, Gholipouri et al (2009) and Anwar et al (2011) reported that, the yield under irrigated conditions has a very weak association with stress conditions, therefore, indirect selection for stresses environment based on the performance of irrigated conditions would not be effective in wheat.…”

Section: Resultssupporting

confidence: 92%

Screening of Cotton Cultivars for Drought Tolerance Under Field Condition

Sezener¹,

Başal²,

Peynircioğlu³

et al. 2015

Turkish Journal of Field Crops

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To develop cotton germplasm with improved yield under drought conditions is one of the major goals for cotton breeders. The main purpose of this study was to evaluate 96 cotton genotypes for drought tolerance by measuring yield performance under deficit (water-limited) and full irrigation conditions. The field experiment was conducted under full (FI-100) and deficit (DI-50) irrigation conditions during the two growing seasons of 2011 and 2012 at the Agricultural Research Station of Adnan Menderes University, Aydin, Turkey. The mean data on performance of 96 different cotton genotypes showed the existance of considerable genotypic variations for yield, yield components, and drought tolerance indices. Correlation and regression analysis indicated that cotton genotypes characterizied with high GMP and low DSI could be selected as a potentially droght-tolerant genotypes. It is concluded from the present studies that, based on biplot analysis, 20 genotypes were found highly susceptile to water stress, 26 genotypes were highly susceptible to water stress but produced high yield in full irrigation, and 23 genotypes were not only water stress tolerant but also give maximum seed cotton yield. However, GC 555, Nieves, DAK-66/3, MS-30/1, Nazilli M-503, Zeta 2, Eva, NIAB 999, and Delta Diomand were found highly water stress tolerant because of maximum GMP and minimum DSI values. These genotypes could be exploited as genetic resources in breeding programs aiming to improve drought tolerance in cotton.

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Section: Resultssupporting

confidence: 92%

Screening of Cotton Cultivars for Drought Tolerance Under Field Condition

Sezener¹,

Başal²,

Peynircioğlu³

et al. 2015

Turkish Journal of Field Crops

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“…Genotypes 8, 9 and 7 with high SSI values (1.97, 1.45 and 1.45, respectively) can be considered drought susceptible. Similar results were found in those of Abdi et al (2013) and Raman et al (2012).…”

Section: Mean Performance Of Genotypes Based On the Tolerance Indicessupporting

confidence: 89%

“…The variation in Yp and Ys suggested the occurrence of important resources for getting drought tolerant genotypes under this study. The results are similar to those of Abdi et al (2013). STI ranged from 0.22 to 1.39; the higher values of up to 1 indicate high stress tolerance.…”

Section: Mean Performance Of Genotypes Based On the Tolerance Indicessupporting

confidence: 82%

Assessment of Variability for Drought Tolerance Indices in Some Wheat ( Triticum aestivum L.) Genotypes

Eid

Sabry

2019

Egypt. J. Agron.

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Introduction Bread wheat (Triticum aestivum L.) is annual crop, self-pollinator and contains Genome Hexoploid (AABBDD). Wheat, ranking second among cereals, supplies nutrients to more than one billion of population (Mergoum et al., 2009 and Braun et al., 2010). The demand of wheat is anticipated to increase by 40% in next ten years (FAO, 2015). Arid and semiarid areas adversely affected by drought environment that suffered from reducing more than 50% of yield crops (Jalilvandy & Mehdi, 2013). Plant breeders detected intensively for reliable and rapid method to combat drought problems. So, the researches on wheat to develop or introduce new superior genotypes or varieties that are very valuable (Subhani et al., 2012; Khan et al., 2013; Mahmood et al., 2013 and Aktas, 2016). These genotypes can tolerate serious drought stress without considerable reduction in grain yield. However, Talebi et al. (2009), Pireivatlou et al. (2010) and Koleva & Dimitrova E STIMATION of nine yield-based drought tolerance indices was studied in ten wheat genotypes and identification of best index and best drought tolerant genotype. Nine drought tolerance indices comprising stress tolerance index (STI), tolerance index (TOL), stress susceptibility index (SSI), geometric mean productivity (GMP), mean productivity (MP), harmonic mean (HAM), yield index (YI), yield stability index (YSI) and drought resistance index (DRI) were each estimated based on yield under non-stress (Yp) and stress condition (Ys). The results of the genetic analysis for all drought tolerance indices studied demonstrated that GMP, MP and HAM had less variation between phenotypic coefficients of variability and genotypic coefficient of variability corresponded to high heritability. GMP, MP and HAM were nominated as the best useful indices that looking for drought tolerant genotypes. Also, they had positive correlation with Yp and Ys. The genotypes 1, 6 and 10 were considered drought tolerant while genotypes 3, 4, 5, 7 and 9 as drought susceptible. Genotype 8 was identified as highly drought susceptible. The studied genotypes showed considerable variation in performance and tolerated various drought conditions that could be exploited in further investigation.

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“…These STIs are stress susceptibility index (SSI) [114], geometric mean productivity (GMP) [115], mean productivity (MP) [116], stress tolerance (TOL) [117] and STI [118] that can be useful for documentation of stress tolerance crops cultivars with high-yield ability. Among STIs, genotypes with higher values for each of MP [47,119], GMP [118,120], yield index (YI) [121,122], yield stability index (YSI) [119,123] and relative performance (RP%) [23,33] suggest higher stress tolerance compared to lower tolerance for lower values of these indices. Whereas, the lower value of SSI of a crop cultivar indicates that the cultivar is tolerant to stress, while a higher SSI value indicates relatively greater sensitivity to a given stress [110,[124][125][126].…”

Section: Stress Tolerance Indices Could Be Used Effectively For the Smentioning

confidence: 99%

Wheat (Triticum aestivumL.) in the Rice-Wheat Systems of South Asia Is Influenced by Terminal Heat Stress at Late Sown Condition: A Case in Bangladesh

Hossain¹,

Islam²,

Islam³

2021

Plant Stress Physiology

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Wheat plays an important role in attaining food and nutritional security in Bangladesh after rice. The demand of wheat has been increasing every year at the rate of 13% due to rapid changes in dietary habits, socio-economic upliftment, enhancement of per capita income, etc. Bangladesh Wheat and Maize Research Institute (BWMRI) has already released 34 high yielding, disease-resistant, and abiotic stress-tolerant wheat varieties, and improved management practices to the farmers. Although all the released varieties have climatic yield potential as high as 6.0 t ha −1 with the attainable average yield is 4.0-4.5 t ha −1 , the national average yield in farmers' field is only 3.49 t ha −1 ; it is specified that there is a huge yield gap existing among potential, attainable and actual yields. One of the most important reasons for this yield gap of wheat is the terminal high temperature stress (HS) in late sowing wheat. Generally, farmers in Bangladesh are sowing wheat lately due to delay in sowing monsoon rice and subsequent late harvest of the rice; as a result, late sown wheat faces terminal HS at reproductive stage. The chapter highlighted the consequences of terminal HS on wheat and potential approaches to mitigate the stress in Bangladesh.

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Effective selection criteria for screening drought tolerant recombinant inbred lines of sunflower

Cited by 12 publications

References 23 publications

Screening of Cotton Cultivars for Drought Tolerance Under Field Condition

Screening of Cotton Cultivars for Drought Tolerance Under Field Condition

Assessment of Variability for Drought Tolerance Indices in Some Wheat ( Triticum aestivum L.) Genotypes

Wheat (Triticum aestivumL.) in the Rice-Wheat Systems of South Asia Is Influenced by Terminal Heat Stress at Late Sown Condition: A Case in Bangladesh

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