Drought tolerance in Brassica napus is accompanied with enhanced antioxidative protection, photosynthetic and hormonal regulation at seedling stage

2021 ◽  
Author(s):  
Ahsan Ayyaz ◽  
Yilin Miao ◽  
Fakhir Hannan ◽  
Faisal Islam ◽  
Kangni Zhang ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Drought Tolerance ◽  
Hormonal Regulation ◽  
Seedling Stage ◽  
Antioxidative Protection

Evaluation of cassava germplasm (14 cultivars) for drought tolerance at seedling stage

2013 ◽  
Vol 38 (4) ◽  
pp. 366-372
Author(s):  
Xiao-qing WANG ◽  
Mao-chang TANG ◽  
Jie HUANG ◽  
Zi-fan LIU ◽  
Juan XU ◽  
...  
Keyword(s):  
Drought Tolerance ◽  
Seedling Stage

scholarly journals Overexpression of BnKCS1-1, BnKCS1-2, and BnCER1-2 promotes cuticular wax production and increases drought tolerance in Brassica napus

2020 ◽  
Vol 8 (1) ◽  
pp. 26-37 ◽  
Author(s):  
Yanmei Wang ◽  
Shurong Jin ◽  
Yi Xu ◽  
Shuai Li ◽  
Shuangjuan Zhang ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Drought Tolerance ◽  
Cuticular Wax ◽  
Wax Production

scholarly journals Screening for drought tolerance of maize hybrids by multi-scale analysis of root and shoot traits at the seedling stage

2016 ◽  
Vol 67 (8) ◽  
pp. 2453-2466 ◽  
Author(s):  
Viktoriya Avramova ◽  
Kerstin A. Nagel ◽  
Hamada AbdElgawad ◽  
Dolores Bustos ◽  
Magdeleen DuPlessis ◽  
...  
Keyword(s):  
Drought Tolerance ◽  
Seedling Stage ◽  
Scale Analysis ◽  
Maize Hybrids ◽  
Multi Scale ◽  
Root And Shoot Traits ◽  
Multi Scale Analysis

scholarly journals Affordable Phenotyping of Winter Wheat under Field and Controlled Conditions for Drought Tolerance

Agronomy ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 882
Author(s):  
Dhananjay Kumar ◽  
Sandeep Kushwaha ◽  
Chiara Delvento ◽  
Žilvinas Liatukas ◽  
Vivekanand Vivekanand ◽  
...  
Keyword(s):  
Drought Tolerance ◽  
Winter Wheat ◽  
Growth Rates ◽  
Plant Biomass ◽  
Growth Conditions ◽  
Seedling Stage ◽  
Growth Stages ◽  
Digital Cameras ◽  
Relative Growth ◽  
Relative Growth Rates

Drought stress is one of the key plant stresses reducing grain yield in cereal crops worldwide. Although it is not a breeding target in Northern Europe, the changing climate and the drought of 2018 have increased its significance in the region. A key challenge, therefore, is to identify novel germplasm with higher drought tolerance, a task that will require continuous characterization of a large number of genotypes. The aim of this work was to assess if phenotyping systems with low-cost consumer-grade digital cameras can be used to characterize germplasm for drought tolerance. To achieve this goal, we built a proximal phenotyping cart mounted with digital cameras and evaluated it by characterizing 142 winter wheat genotypes for drought tolerance under field conditions. The same genotypes were additionally characterized for seedling stage traits by imaging under controlled growth conditions. The analysis revealed that under field conditions, plant biomass, relative growth rates, and Normalized Difference Vegetation Index (NDVI) from different growth stages estimated by imaging were significantly correlated to drought tolerance. Under controlled growth conditions, root count at the seedling stage evaluated by imaging was significantly correlated to adult plant drought tolerance observed in the field. Random forest models were trained by integrating measurements from field and controlled conditions and revealed that plant biomass and relative growth rates at key plant growth stages are important predictors of drought tolerance. Thus, based on the results, it can be concluded that the consumer-grade cameras can be key components of affordable automated phenotyping systems to accelerate pre-breeding for drought tolerance.

Evaluation of green gram genotypes for drought tolerance by PEG (polyethylene glycol) induced drought stress at seedling stage

2019 ◽  
Author(s):  
M. Jincya ◽  
V. Babu Rajendra Prasad ◽  
P. Jeyakumara ◽  
A. Senthila ◽  
N. Manivannan
Keyword(s):  
Drought Stress ◽  
Drought Tolerance ◽  
Moisture Stress ◽  
Germination Percentage ◽  
Seedling Stage ◽  
Green Gram ◽  
Stress Index ◽  
Seedling Mortality ◽  
Seed Vigour ◽  
Selection Of

Drought stress is one of the major constraints for pulse production which negatively affecting its growth and production. Screening and selection of desirable genotypes for drought tolerance is the first and foremost important step in pulse breeding program. In green gram standardization for moisture stress was done under laboratory conditions using various concentration of PEG 6000 and 50% seedling mortality was observed at 0.5 MPa of moisture stress. Using this level of moisture stress 108 green gram genotypes were screened for their drought tolerance at seedling level and the following parameters viz., germination percentage, promptness index, radicle length, root length stress index, germination stress index and seed vigour were recorded. Observations revealed that the following green gram genotypes COGG 1332, VGG 16069, VGG 17003, VGG 17004, VGG 17009, VGG 17019 and VGG 17045 were found highly tolerant to moisture stress at seedling stage.

scholarly journals QTL mapping of salt and drought tolerance related traits in <italic>Brassica napus </italic>L.

2020 ◽  
Vol 47 (3) ◽  
pp. 462-471
Author(s):  
Jiang-Yu MENG ◽  
Guang-Wei LIANG ◽  
Ya-Jun HE ◽  
Wei QIAN
Keyword(s):  
Brassica Napus ◽  
Drought Tolerance ◽  
Qtl Mapping ◽  
Salt And Drought Tolerance
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