scholarly journals Screening of Worldwide Barley Collection for Drought Tolerance: The Assessment of Various Physiological Measures as the Selection Criteria

2020 ◽  
Vol 11 ◽  
Author(s):  
Kangfeng Cai ◽  
Xiaohui Chen ◽  
Zhigang Han ◽  
Xiaojian Wu ◽  
Shuo Zhang ◽  
...  
Keyword(s):  
Drought Tolerance ◽  
Selection Criteria ◽  
Physiological Measures

scholarly journals Selection criteria for drought tolerance at the vegetative phase in early maturing maize

2016 ◽  
Vol 15 (20) ◽  
pp. 816-822 ◽  
Author(s):  
O Akinwale R ◽  
A B Fakorede M ◽  
Oluwaranti A ◽  
Badu Apraku B ◽  
I Adejumobi I
Keyword(s):  
Drought Tolerance ◽  
Selection Criteria ◽  
Vegetative Phase ◽  
Early Maturing

scholarly journals Selection criteria for assessing drought tolerance in a segregating population of flax (Linum usitatissimum L.)

2016 ◽  
Author(s):  
Parvaneh Asgarinia ◽  
Aghafakhr Mirlohi ◽  
Ghodratollah Saeidi ◽  
Ali Akbar Mohamadi Mirik ◽  
Mahdi Gheysari ◽  
...  
Keyword(s):  
Drought Tolerance ◽  
Linum Usitatissimum ◽  
Selection Criteria ◽  
Linum Usitatissimum L ◽  
Segregating Population

Evaluation of physiological traits as indirect selection criteria for drought tolerance in sugar beet

2005 ◽  
Vol 91 (2-3) ◽  
pp. 231-249 ◽  
Author(s):  
Eric S. Ober ◽  
Mich Le Bloa ◽  
Chris J.A. Clark ◽  
Andy Royal ◽  
Keith W. Jaggard ◽  
...  
Keyword(s):  
Drought Tolerance ◽  
Sugar Beet ◽  
Selection Criteria ◽  
Indirect Selection ◽  
Physiological Traits

Evaluation of the tolerance of Thai indigenous upland rice germplasm to early drought stress using multiple selection criteria

2015 ◽  
Vol 15 (2) ◽  
pp. 109-118 ◽  
Author(s):  
Kittichai Narenoot ◽  
Tidarat Monkham ◽  
Sompong Chankaew ◽  
Patcharin Songsri ◽  
Wattana Pattanagul ◽  
...  
Keyword(s):  
Drought Stress ◽  
Drought Tolerance ◽  
Selection Criteria ◽  
Upland Rice ◽  
Block Design ◽  
Rice Variety ◽  
Tolerance Index ◽  
Rice Varieties ◽  
Rice Germplasm ◽  
Drought Tolerance Index

Drought remains the most important factor that affects rice productivity, especially in rainfed areas, worldwide. Upland rice is one of the crop choices of farmers in the rainfed environment. Although upland rice varieties require less water than lowland rice varieties, yields often remain limited by drought, particularly in the period of early growth. The aims of this study were to identify the traits related to early drought tolerance in upland rice varieties, and to identify the potential sources of germplasm for early drought tolerance. A total of sixty upland rice varieties were planted in a factorial experiment with a randomized complete block design with 3 replications in the rainy seasons of 2011 and 2012, under greenhouse conditions. Based on the drought tolerance index (DTI), the test germplasm sources were classified into three groups: (i) susceptible; (ii) moderately tolerant; (iii) tolerant to drought stress. Grain yield (GY) showed significant negative correlations with the leaf rolling score (r= − 0.623, P< 0.01), the leaf death score (LDS) (r= − 0.673, P< 0.01) and the recovery score (r= − 0.746, P< 0.01), while leaf dry matter (r= 0.698, P< 0.01) and leaf water potential (r= 0.618, P< 0.01) had significant positive correlations with GY. These findings indicate the suitability of the DTI as the selection criteria for early drought tolerance in a breeding programme. In addition, the upland rice germplasm accessions KKU-ULR011, KKU-ULR012, KKU-ULR125, KKU-ULR199 and KKU-ULR292 were identified as having high levels of stability for drought tolerance in both the 2011 and 2012 experiments, suggesting their potential for further use for rice variety improvement for drought tolerance.

Screening of maize (Zea mays L.) genotypes for drought tolerance using photosynthetic pigments and anti-oxidative enzymes as selection criteria

2021 ◽  
Vol 54 (1) ◽  
Author(s):  
Ambreen Khadija Alvi ◽  
Muhammad Sajid Aqeel Ahmad ◽  
Tanzila Rafique ◽  
Mehwish Naseer ◽  
Fozia Farhat ◽  
...  
Keyword(s):  
Zea Mays ◽  
Drought Tolerance ◽  
Photosynthetic Pigments ◽  
Selection Criteria ◽  
Zea Mays L ◽  
Oxidative Enzymes

scholarly journals Selection Criteria and Selection Environment for Drought Tolerance of Egyptian Wheat (Triticum aestivum L.) Landraces

2020 ◽  
pp. 25-40
Author(s):  
Ahmed Medhat Mohamed Al-Naggar ◽  
Mohamed Abd El-Maboud Abd El-Shafi ◽  
Mohamed Helmy El-Shal ◽  
Ali Hassan Anany
Keyword(s):  
Drought Tolerance ◽  
Grain Yield ◽  
Selection Criteria ◽  
Selection Criterion ◽  
Correlation Coefficients ◽  
Grain Filling ◽  
Triticum Aestivum L ◽  
Genetic Advance ◽  
Selection Environment ◽  
Selection For

Strong correlations between wheat traits and drought tolerance (DT) associated with high heritability and high genetic advance from selection would allow plant breeder to use such traits as selection criteria. The objective of the present investigation was to determine the optimum selection criteria and selection environment for drought tolerance via estimation of correlation coefficients (r) among 13 agronomic, grain yield and quality traits and DT of 20 wheat landraces, broad-sense heritability (h2b) and genetic advance (GA) from selection for such traits under well-watered (WW) and water stressed (WS) environments. A two-year experiment was carried out using a split-plot design with four replications. Results concluded that the best selection criterion for drought tolerance in our study was grain yield/plant (GYPP), followed by a number of grains/spike (GPS), grain filling period (GFP), grain starch (GSC) and protein (GPC) content, plant height (PH) and days to maturity (DTM), since they showed high (r), high h2b and high GA estimates. The best selection environment was WW for days to anthesis, PH, spikes/plant, GPS, spikelets/spike, GYPP, GPC and WS for DTM, GFP, GSC and thousand-grain weight traits. This information could help future breeding programs in selection for improving drought tolerance of wheat.

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