scholarly journals Identification of Drought Tolerant Chickpea Genotypes Through Multi Trait Stability Index

2021 ◽  
Author(s):  
Tamoor Hussain ◽  
Zahid Akram ◽  
Ghulam Shabbir ◽  
Abdul Manaf ◽  
Mukhtar Ahmed
Keyword(s):  
Stability Index ◽  
Drought Tolerant ◽  
Trait Stability

scholarly journals Estimations on Trait Stability of Maize Genotypes

Agriculture ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 952
Author(s):  
Vasileios Greveniotis ◽  
Elisavet Bouloumpasi ◽  
Stylianos Zotis ◽  
Athanasios Korkovelos ◽  
Constantinos Ipsilandis
Keyword(s):  
Field Experiments ◽  
Stability Index ◽  
Specific Weight ◽  
Kernel Weight ◽  
Local Conditions ◽  
Maize Hybrids ◽  
Maize Genotypes ◽  
Trait Stability ◽  
Two Factors ◽  
Stable Performance

The purposes of this study were to define the kind of trait inheritance through stability estimations of various traits in maize, to define the relationship between different environments and maize hybrids, and to propose the best environments and hybrids for farmers. Field experiments were conducted in two years (2011 and 2012) at four different locations in Greece: Florina, Trikala, Kalambaka and Giannitsa which were selected as they represent different environments. The genetic materials tested in a Randomized Complete Block (RCB) design, were 15 F1 commercial maize hybrids and 15 open-pollination lines developed from 4-cycle Honeycomb evaluation. Materials were sown and harvested by hand at different dates according to local conditions. Trait stability index (x̄ / s)2 across environments was computed for each maize trait studied: yield, specific weight, 1000-kernel weight, axis (spindle) weight, spike weight, number of kernels per spike, spike length and diameter, number of kernel rows, spindle diameter, main spike and plant height, prolificacy and number of kernels per row. The findings showed great differences in stability index between traits and also for the same trait across environments or between maize genotypes. GGE biplot for yield distributed genotypes in a different way for Florina on the basis of one main factor and managed to depict Trikala’s differential response on the basis of two factors. Almost the same trend was found for 1000-kernel weight and specific weight, where there was a wide core for similar responding genotypes. Basic conclusions of this research are summarized in great differences of various traits, indicating qualitative, medium or quantitative inheritance. Estimations for trait stability can be easily performed in a multi-genotype experiment using trait stability index. The most stable hybrids were proved to be 31Y43, COSTANZA and FACTOR. The environment favouring a general stable performance proved to be Florina.

scholarly journals Exploring the Phenotypic Stability of Soybean Seed Compositions Using Multi-Trait Stability Index Approach

Agronomy ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2200
Author(s):  
Ahmed M. Abdelghany ◽  
Shengrui Zhang ◽  
Muhammad Azam ◽  
Abdulwahab S. Shaibu ◽  
Yue Feng ◽  
...  
Keyword(s):  
Protein Content ◽  
Oil Content ◽  
Soybean Seed ◽  
Weighted Average ◽  
Stability Index ◽  
Environment Interaction ◽  
Quality Traits ◽  
Growing Seasons ◽  
Trait Stability ◽  
Soybean Genotypes

In order to ensure an ongoing and long-term breeding progress of soybean, stable sources of major quality traits across multi-environments need to be identified. Here, a panel of 135 soybean genotypes was tested in three different Chinese environments, including Beijing, Anhui, and Hainan during the 2017 and 2018 growing seasons to identify stable genotypes for cultivation under varying environmental conditions. The weighted average of absolute scores biplot (WAASB) for the best linear unbiased predictions of the genotype-environment interaction and multi-trait stability index (MTSI) were utilized to determine the stability of the soybeans for seven seed composition traits viz; protein content, oil content, and five fatty acids (palmitic, stearic, oleic, linoleic, and linolenic acids). Based on the WAASB index, the following genotypes were identified as stable genotypes for some specific traits; ZDD12828 and ZDD12832 for protein content, WDD01583 and WDD03025 for oil content, ZDD23040 for palmitic acid, WDD00033 for stearic acid, ZDD23822 for oleic acid, ZDD11183 for linoleic acid, and ZDD08489 for linolenic acid. Furthermore, based on MTSI at a selection intensity of 10%, 14 soybean genotypes were selected for their average performance and stability. Overall, the MTSI was shown to be a powerful and simple tool for identifying superior genotypes in terms of both performance and stability, hence, identifying stable soybean genotypes for future breeding programs of quality traits.

scholarly journals Estimations of fibre trait stability and type of inheritance in cotton

2018 ◽  
Vol 54 (No. 4) ◽  
pp. 190-192 ◽  
Author(s):  
Vasileios Greveniotis ◽  
Evangelia Sioki ◽  
Constantinos G. Ipsilandis
Keyword(s):  
Stability Index ◽  
Quality Trait ◽  
Quality Traits ◽  
Quantitative Inheritance ◽  
Fibre Quality ◽  
Mean Estimation ◽  
Trait Stability ◽  
Genotype Evaluation ◽  
The Mean ◽  
Almost All

Traits affecting fibre quality were evaluated in a multi-location environmental experiment. Four main cotton regions in Greece were selected as different environments. Five commercial cotton cultivars were used for evaluation of 10 fibre quality traits. Each cultivar was sown in 10 different fields in each region. Environmental fluctuations within regions affected each quality trait differently showing a different degree of inheritance. Four traits showed the lowest stability index values indicating quantitative inheritance, further four traits with intermediate values indicated determination by a few genes, while the more stable and thus with qualitative inheritance traits were considered to indicate fibre maturity and uniformity. The mean estimation of stability in multi-location experiments was found the same as in multi-genotype evaluation. Two cultivars (Elsa and Celia) were found to be more stable across the Greek environments and two regions favoured stability for almost all traits. Correlations between regions were high and the same was found between genotypes.  

scholarly journals Simulation of in vitro water deficit for selecting drought-tolerant banana genotypes

2017 ◽  
Vol 52 (12) ◽  
pp. 1301-1304 ◽  
Author(s):  
Alice Lichs Marssaro ◽  
Lucymeire Souza Morais-Lino ◽  
Jailson Lopes Cruz ◽  
Carlos Alberto da Silva Ledo ◽  
Janay Almeida dos Santos-Serejo
Keyword(s):  
Polyethylene Glycol ◽  
Water Stress ◽  
Liquid Medium ◽  
Water Deficit ◽  
Dry Matter ◽  
Stability Index ◽  
Yield Stability ◽  
Musa Sp ◽  
Drought Tolerant

Abstract: The objective of this work was to determine a method to simulate water stress in vitro to select drought-tolerant banana (Musa sp.) genotypes. The BRS Tropical and Prata Anã cultivars were grown in vitro in an MS liquid medium containing sucrose and benzylaminopurine (BAP), supplemented with different concentrations of polyethylene glycol (PEG) or sorbitol. The yield stability index of dry matter was evaluated. Cultivation for 30 days in a medium containing 15 g L-1 PEG or 36.4 g L-1 sorbitol is appropriate to simulate water stress in vitro.

scholarly journals Selection of drought-tolerant local rice cultivars from East Nusa Tenggara, Indonesia during vegetative stage

2019 ◽  
Vol 21 (1) ◽  
Author(s):  
Yustina Carolina Febrianti Salsinha ◽  
Didik Indradewa ◽  
Yekti Asih Purwestri ◽  
Diah Rachmawati
Keyword(s):  
Intercellular Co2 Concentration ◽  
Stability Index ◽  
High Sensitivity ◽  
Co2 Concentration ◽  
Vegetative Stage ◽  
Severe Drought ◽  
Rice Cultivars ◽  
Drought Tolerant ◽  
Physiological Analysis ◽  
Selection Of

Abstract. Salsinha Y C F, Indradewa D, Purwestri Y A, Rachmawati D. 2020. Selection of drought-tolerant local rice cultivars from East Nusa Tenggara during vegetative stage. Biodiversitas 21: 170-178. East Nusa Tenggara (NTT), with the predominance of dry climate, has the potential of the plant with high tolerance to drought. This research was conducted to select drought-tolerant rice cultivars. There were eight NTT-rice cultivars tested: Pak morin (P1), Mapan (P2), Pak Mutin (P3), Gogo Fatuhao (P4), Seratus-malam Boawae (P5), Padi-Putih Kuatnana (P6), Padi-Putih Maumere (P7) and Gogo Sikka (P8) with 2 control cultivars tested: Ciherang (drought- susceptible) and IR-64 (drought tolerant). The treatment included were 100% FC (control), 50% FC (moderate) and 25% FC (severe drought) during vegetative stage. The morphological analysis of plant (plant height, number of leaves and tillers and root architecture) showed cultivars P1, P5 and P6 possess the best characteristics for tolerating drought. The physiological analysis (plant photosynthetic rate, stomatal conductance, intercellular CO2-concentration, and transpiration rate) showed cultivar P5 and P6 possess the best characteristics for tolerating drought. The high levels of chlorophyll and carotenoid contents during drought conditions were observed in P5, P6, and P7 cultivars. Based on the relative water content, membrane stability index and proline levels, highest-resistance cultivar was P5 and P7 while the cultivar with high sensitivity to drought stress was P3. Based on the morphophysiological characteristics, it can be concluded that P5, P6, and P7 cultivar have the potential as drought-tolerant rice.

Multi‐trait stability index: A tool for simultaneous selection of soya bean genotypes in drought and saline stress

2020 ◽  
Vol 206 (6) ◽  
pp. 815-822 ◽  
Author(s):  
Alan Mario Zuffo ◽  
Fábio Steiner ◽  
Jorge González Aguilera ◽  
Paulo Eduardo Teodoro ◽  
Larissa Pereira Ribeiro Teodoro ◽  
...  
Keyword(s):  
Stability Index ◽  
Soya Bean ◽  
Saline Stress ◽  
Trait Stability ◽  
Simultaneous Selection ◽  
Selection Of

scholarly journals Selection of Suitable Genotypes of Lentil (Lens culinaris Medik.) under Rainfed Conditions in South Italy Using Multi-Trait Stability Index (MTSI)

Agronomy ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1807 ◽  
Author(s):  
Mohamed Houssemeddine Sellami ◽  
Cataldo Pulvento ◽  
Antonella Lavini
Keyword(s):  
Seed Yield ◽  
Lens Culinaris ◽  
Seed Quality ◽  
Stability Index ◽  
Environment Interaction ◽  
High Performing ◽  
South Italy ◽  
Legume Crop ◽  
Trait Stability ◽  
Seed Yields

Lentil (Lens culinaris Medik.) is a popular legume crop in the Mediterranean region, widely grown for its nutritious seeds and improving soil fertility. Lentil yield is a critical and challenging trait for crop genetic improvement because it is influenced by various factors that have detrimental effects on seed yields and seed quality traits. This research was carried out in Italy between 2017 and 2019 to identify high-performing stable genotypes presenting multiple desirable traits and to assess the seed quality of 13 lentil accessions in the field. According to the results of the multi-trait stability index (MTSI), (1) only three accessions (Altamura, Easton, and Caltagirone) fared better in various environmental conditions, and (2) the selected accessions had strength toward seed yield (SY), above-ground biomass (AGB), and 1000-seed weight (THS). The genotype × environment interaction (GEI) effects were highly significant for all traits. During the third growing season, most lentil accessions were sensitive to frost. There was no correlation between lentil seed yield and protein concentration. The MTSI is a useful tool for breeders interested in selecting accessions based on their mean performance and stability, as well as desirable traits and minimum multicollinearity issues.

DROUGHT TOLERANT INDICES OF LOWLAND TOMATO CULTIVARS

2020 ◽  
Vol 21 (2) ◽  
pp. 59
Author(s):  
Amalia Tetrani Sakya ◽  
Endang Sulistyaningsih ◽  
Benito Heru Purwanto ◽  
Didik Indradewa
Keyword(s):  
Drought Tolerance ◽  
Stability Index ◽  
Fruit Weight ◽  
Plant Diseases ◽  
Stress Index ◽  
Root Surface Area ◽  
Tolerance Index ◽  
Drought Tolerant ◽  
Tomato Cultivars ◽  
Promising Source

<p>The released lowland tomato cultivars are known for their resistance to plant diseases and high temperatures. The study aimed to identify the drought tolerance of lowland tomato cultivars based on the drought tolerant indices. The study was arranged in a split plot design, using seven lowland tomato cultivars (Zamrud, Permata F1, Ratna, Mirah, Tombatu F1, Tyrana F1, and Tymoti F1) as the main plot and watering (standard conditions and once every eight days as the drought conditions) as the subplot. Parameters observed were morpho physiological characters (plant height, leaf area, biomass, root length, root surface area, shoot root ratio, relative moisture content, membrane stability index, chlorophyll levels, and proline levels). The parameters observed in each character included the sensitivity stress index (SSI), stress tolerance index (STI), and yield stability index (YSI). Results showed that four cultivars (Tyrana F1, Tymoty F1, Mirah, and Tombatu F1) were drought tolerance, and three cultivars (Ratna, Permata F1, and Zamrud F1) were susceptible. The water stress decreased agronomic and physiological traits performance, but the drought-tolerant cultivars were less affected to the stress and produced higher fruit weight. The study implies that the drought-tolerant cultivars could be used as a promising source for drought tolerant genotypes.</p>

scholarly journals Evaluation of Physiological Traits, Yield and Yield Components at Two Growth Stages in 10 Durum Wheat Lines Grown under Rainfed Conditions in Southern Syria

2015 ◽  
Vol 48 (2) ◽  
pp. 29-49
Author(s):  
M. Almeselmani ◽  
A. Al-Rzak Saud ◽  
K. Al-Zubi ◽  
S. Al-Ghazali ◽  
F. Hareri ◽  
...  
Keyword(s):  
Durum Wheat ◽  
Relative Water Content ◽  
Yield Components ◽  
Stability Index ◽  
Wheat Cultivars ◽  
Membrane Stability Index ◽  
Drought Tolerant ◽  
Yield And Yield Components ◽  
Relative Water ◽  
Wheat Lines

AbstractWater stress, which limits the distribution and productivity of durum wheat (Triticum durum Desf.) in the Mediterranean region, is also considered to be a major factor reducing yield in semiarid regions. Improving drought resistance is thus an important objective in plant breeding programs for rainfed agriculture. The current study was carried out to identify drought-tolerant durum wheat lines among 10 lines and one variety (Douma1, the control) in the first and second settlement zones in the Southern part of Syria and to recognize the most important physiological parameters associated with drought tolerance. Membrane stability index, chlorophyll (chl) content, relative water content and chl fluorescence were recorded at the vegetative and anthesis stages, as were yield and yield components. Data recorded at vegetative and anthesis stages in both zones showed that there were significant differences between all lines growing in the first and second settlement zones and that all characters in the second zone were significantly lower than those in the first zone. Line 1 was superior to Douma1 in terms of membrane stability index, relative water content, chl content and chl florescence, also showing better yield and higher total plant biomass, tiller number/m2, 1000 grain weight and grain number/ear than the control. The ability of wheat cultivars to perform reasonably well in variable rainfall and water-stressed environments is an important trait since it allows for stable production under drought stress. Moreover, prior to genetic manipulation, it is important to characterize the physiological parameters of known drought-tolerant or drought-sensitive wheat cultivars with the objective of better understanding their physiological responses under drought

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