Abstract
Rice is one of the most important staple foods for the human population. More than 2000 million people obtain 60–70% of their calories from rice and its products in Asia alone. It is the grain with the second highest worldwide production. China, India, Indonesia and Bangladesh are the largest producers of rice. Climate change and global warming are two main reasons that concern sustainable food production. Drought is a major environmental stress factor that affects the growth and development of rice plants. Drought or soil water deficit can be chronic during the period of plant growth. Thus, understanding drought stress and water use in relation to plant growth are utmost important for sustainable agriculture. Keeping the severe effects of drought in mind, the present investigation was carried out in the Norman E. Borlaug Crop Research Centre and Department of Plant Physiology, G.B. Pant University of Agriculture and Technology Pantnagar, to evaluate morphological characterization of different drought tolerant rice genotype under field condition. In this experiment, 16 genotypes of rice were taken with three replications of each genotype. Two treatments were given at the time of flowering i.e., irrigated (control) and non irrigated (drought). The different observations were taken like Plant height, Number of tiller, grain yield, total dry matter, leaf area index and 1000 grain weight. Under the investigation, it was observed that plant height, total dry matter, leaf area index rest other parameters all are decreased under drought (non irrigated) condition compared to control (irrigated) condition. Therefore, morphological parameters may be used for screening of drought tolerant varieties of rice.
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Claims 5
Claim · model-written summary
Plant height decreased under non-irrigated drought relative to irrigation.
- Taxon
- Rice
Oryza sativat0 - Treatment
- drought (non irrigated) conditione0
- Outcome
- plant heighte0
- Direction
- decreasede0
- Comparator
- control (irrigated) conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant height, total dry matter, leaf area index rest other parameters all are decreased under drought (non irrigated) condition compared to control (irrigated) condition”
t0“Rice”
Claim · model-written summary
Total dry matter decreased under non-irrigated drought relative to irrigation.
- Taxon
- RiceOryza sativat0
- Treatment
- drought (non irrigated) conditione0
- Outcome
- total dry mattere0
- Direction
- decreasede0
- Comparator
- control (irrigated) conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant height, total dry matter, leaf area index rest other parameters all are decreased under drought (non irrigated) condition compared to control (irrigated) condition”
t0“Rice”
Claim · model-written summary
Leaf area index decreased under non-irrigated drought relative to irrigation.
- Taxon
- RiceOryza sativat0
- Treatment
- drought (non irrigated) conditione0
- Outcome
- leaf area indexe0
- Direction
- decreasede0
- Comparator
- control (irrigated) conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant height, total dry matter, leaf area index rest other parameters all are decreased under drought (non irrigated) condition compared to control (irrigated) condition”
t0“Rice”
Claim · model-written summary
Other measured parameters also decreased under drought.
- Taxon
- RiceOryza sativat0
- Treatment
- drought (non irrigated) conditione0
- Outcome
- Number of tiller, grain yielde1
- Direction
- decreasede0
- Comparator
- control (irrigated) conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rest other parameters all are decreased under drought (non irrigated) condition compared to control (irrigated) condition”
e1“Number of tiller, grain yield, total dry matter, leaf area index and 1000 grain weight”
t0“Rice”
Claim · model-written summary
Morphological parameters may be used to screen drought-tolerant rice varieties.
- Taxon
- riceOryza sativae0
- Outcome
- morphological parameters may be used for screening of drought tolerant varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“morphological parameters may be used for screening of drought tolerant varieties of rice”
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