scholarly journals Effect of Water Stress at Tillering Stage on Different Morphological Traits of Rice (Oryza Sativa L) Genotypes

2017 ◽  
Vol 7 (3) ◽  
pp. 471-480 ◽  
Author(s):  
Sudeshna Panja et al., Sudeshna Panja et al., ◽  
Keyword(s):  
Oryza Sativa ◽  
Water Stress ◽  
Morphological Traits ◽  
Oryza Sativa L ◽  
Effect Of Water

Effect of Water Stress on Seed Germination and Seedling Growth of Rice (Oryza sativa L.) Genotypes

2003 ◽  
Vol 2 (4) ◽  
pp. 217-222 ◽  
Author(s):  
H. Pirdashti ◽  
Z. Tahmasebi Sarvestani ◽  
GH. Nematzadeh ◽  
A. Ismail
Keyword(s):  
Oryza Sativa ◽  
Water Stress ◽  
Seed Germination ◽  
Seedling Growth ◽  
Oryza Sativa L ◽  
Effect Of Water

scholarly journals Evaluation of Rice (Oryza sativa L.) Genotypes for Drought Tolerance at Germination and Early Seedling Stage

2018 ◽  
Vol 16 (1) ◽  
pp. 44-54 ◽  
Author(s):  
M M Islam ◽  
E Kayesh ◽  
E Zaman ◽  
T A Urmi ◽  
M M Haque
Keyword(s):  
Oryza Sativa ◽  
Water Stress ◽  
Drought Stress ◽  
Drought Tolerance ◽  
Evaluation System ◽  
Oryza Sativa L ◽  
Dry Weight ◽  
Seedling Height ◽  
Early Seedling ◽  
Rice Genotypes

Drought stress is a major constraint to the production and yield stability of crops. Rice (Oryza sativa L.) is considered as a drought-sensitive crop species. Within this species, there are considerable varietal differences in sensitivity to this environmental stress. An experiment was conducted at the laboratory of the Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Bangladesh during April to September 2016 to evaluate 100 rice genotypes for drought tolerance during germination and early seedling growth stage. The genotypes were tested against five levels of drought stress imposed by Polyethylene glycol 6000 (PEG-6000) @ 0, 5, 10, 15 and 20%. The experiment was laid out in a complete randomized design with four replications. The results showed that with increasing water stress, germination in all the genotypes decreased from 95.8% in control to 6.6 % in highest stress (20% PEG) level. Seedling height and dry weight also decreased in all rice genotypes with the increase in water stress level. Based on Standard Evaluation System (SES),18 genotypes were selected primarily. Among the 18 genotypes, Ratoil and Chinisakkar showed higher germination index, relative seedling height and relative seedling dry weight than the check drought tolerant BRRI dhan43 at 20% PEG. Beside these, performance of Kumridhan, Pusur and Somondori was also well at this level compared to BRRI dhan43. The genotypes Ratoil, Chinisakkar, Kumridhan, Pusur and Somondori showed the best performance under drought condition. The Agriculturists 2018; 16(1) 44-54

scholarly journals Characterization of rice (Oryza sativa L.) landraces based on agro-morphological traits

2019 ◽  
Vol 10 (2) ◽  
pp. 627
Author(s):  
K. Keerthivarman ◽  
S. Juliet Hepziba ◽  
R.P. Gnanamalar ◽  
J. Ramalingam
Keyword(s):  
Oryza Sativa ◽  
Morphological Traits ◽  
Oryza Sativa L

scholarly journals Evaluation of seedling growth of rice (Oryza sativa L.) genotypes under water stress and non-stress conditions

2020 ◽  
Vol 5 (2) ◽  
pp. 174-178
Author(s):  
Shreejana K. C. ◽  
Kabita Kumari Shah ◽  
Niru Baidhya ◽  
Prashamsa Neupane ◽  
Surakshya Pokhrel ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Water Stress ◽  
Drought Tolerance ◽  
Stress Condition ◽  
Oryza Sativa L ◽  
Rice Variety ◽  
Research Work ◽  
Higher Plant ◽  
Water Stress Condition ◽  
Number Of Leaves

Rice (Oryza sativa L.) is a species of crops which is highly sensitive to drought. The sensitivity to water stress varies from genotypes to genotypes of rice. An experiment was performed to compare twenty-five different rice genotypes for drought tolerance in the seedling stage at Gokuleshwor Agriculture and Animal Science College, Baitadi Nepal from July to August 2018. The genotypes were tested under two conditions viz., water stress and non-water stress. The research work was carried out in a completely random design (CRD) with three replications. The results exhibited the height of seedling, length & breadth of leaf, number of leaves/plant decreased, and number of leaves shedding increased under water stress condition. Clustering was done by the method of average linkage, and genotypes were categorized into five clusters. The genotype, namely Radha 11 grouped in Cluster-V had higher plant height, bigger length & breadth of leaf, maximum number of leaves/plant and minimum number of leaf shedding. Thus, this genotype showed the best performance for morphological traits under water stress condition. Therefore, this genotype Radha 11 can be utilized further for developing rice variety with drought-tolerance.

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