Abstract
Abstract— Rice genotypes were grown under different water regimes and nitrogen levels. Sufficient soil moisture content (SMC) and high N level caused optimum growth of the genotypes. Deficient water and N supply both retarded growth of rice. PSB Rc14, P42, and P38 had high number of tillers, number panicles per hill, number of spikelets per panicle, relative growth rate (RGR), water use efficiency (WUE), harvest index (HI), straw yield, grain weight, and grain yield at field capacity (FC). These genotypes also had high values in the aforementioned growth and yield parameters at 120 kg N ha-1 treatment. In terms of the efficiency in the use of N as indicated by agronomic efficiency of nitrogen application (AEN), recovery efficiency of nitrogen application (REN), and internal efficiency of nitrogen application, PSB Rc14, P42, and P38 still performed better than the rest of the genotypes tested. Evaluation of the combined effect of water and N application showed that PSB Rc14, P42, and P38 significantly produced high grain yields among the genotypes under SMC at FC with 120 kg N ha-1 which suggests that water plays a fundamental role in rice growth in combination with N. P42 showed the less affected by water deficit and low N nitrogen levels, hence, produced the high grain yield.
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Claims 9
Claim · model-written summary
Sufficient soil moisture and high nitrogen caused optimal genotype growth.
- Taxon
- Rice
Oryza sativat0 - Treatment
- Sufficient soil moisture content (SMC) and high N levele0
- Outcome
- growth of the genotypese0
- Direction
- optimume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sufficient soil moisture content (SMC) and high N level caused optimum growth of the genotypes.”
t0“Rice”
Claim · model-written summary
Deficient water and nitrogen both retarded rice growth.
- Taxon
- riceOryza sativae0
- Treatment
- Deficient water and N supplye0
- Outcome
- growth of ricee0
- Direction
- retardede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Deficient water and N supply both retarded growth of rice.”
Claim · model-written summary
PSB Rc14, P42 and P38 had high tiller, panicle and spikelet counts at field capacity.
- Taxon
- RiceOryza sativat0
- Material
- PSB Rc14, P42, and P38e0
- Treatment
- field capacity (FC)e0
- Outcome
- number of tillers, number panicles per hill, number of spikelets per paniclee0
- Direction
- highe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PSB Rc14, P42, and P38 had high number of tillers, number panicles per hill, number of spikelets per panicle, relative growth rate (RGR), water use efficiency (WUE), harvest index (HI), straw yield, grain weight, and grain yield at field capacity (FC).”
t0“Rice”
Claim · model-written summary
PSB Rc14, P42 and P38 had high relative growth rate, water use efficiency and harvest index at field capacity.
- Taxon
- RiceOryza sativat0
- Material
- PSB Rc14, P42, and P38e0
- Treatment
- field capacity (FC)e0
- Outcome
- relative growth rate (RGR), water use efficiency (WUE), harvest index (HI)e0
- Direction
- highe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PSB Rc14, P42, and P38 had high number of tillers, number panicles per hill, number of spikelets per panicle, relative growth rate (RGR), water use efficiency (WUE), harvest index (HI), straw yield, grain weight, and grain yield at field capacity (FC).”
t0“Rice”
Claim · model-written summary
PSB Rc14, P42 and P38 had high straw yield, grain weight and grain yield at field capacity.
- Taxon
- RiceOryza sativat0
- Material
- PSB Rc14, P42, and P38e0
- Treatment
- field capacity (FC)e0
- Outcome
- straw yield, grain weight, and grain yielde0
- Direction
- highe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PSB Rc14, P42, and P38 had high number of tillers, number panicles per hill, number of spikelets per panicle, relative growth rate (RGR), water use efficiency (WUE), harvest index (HI), straw yield, grain weight, and grain yield at field capacity (FC).”
t0“Rice”
Claim · model-written summary
These three genotypes also had high growth and yield parameters at 120 kg N ha-1.
- Taxon
- RiceOryza sativat0
- Material
- PSB Rc14, P42, and P38e1
- Treatment
- 120 kg N ha-1 treatmente0
- Outcome
- growth and yield parameterse0
- Direction
- highe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These genotypes also had high values in the aforementioned growth and yield parameters at 120 kg N ha-1 treatment.”
e1“PSB Rc14, P42, and P38 had high number of tillers”
t0“Rice”
Claim · model-written summary
The three genotypes performed better in agronomic, recovery and internal nitrogen efficiency than the other genotypes.
- Taxon
- RiceOryza sativat0
- Material
- PSB Rc14, P42, and P38e0
- Outcome
- agronomic efficiency of nitrogen application (AEN), recovery efficiency of nitrogen application (REN), and internal efficiency of nitrogen applicatione0
- Direction
- bettere0
- Comparator
- rest of the genotypes testede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“agronomic efficiency of nitrogen application (AEN), recovery efficiency of nitrogen application (REN), and internal efficiency of nitrogen application, PSB Rc14, P42, and P38 still performed better than the rest of the genotypes tested.”
t0“Rice”
Claim · model-written summary
At field capacity and 120 kg N ha-1 the three genotypes had significantly high grain yields among genotypes.
- Taxon
- RiceOryza sativat0
- Material
- PSB Rc14, P42, and P38e0
- Treatment
- SMC at FC with 120 kg N ha-1e0
- Outcome
- grain yieldse0
- Direction
- highe0
- Comparator
- among the genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PSB Rc14, P42, and P38 significantly produced high grain yields among the genotypes under SMC at FC with 120 kg N ha-1”
t0“Rice”
Claim · model-written summary
P42 was less affected by water deficit and low nitrogen and produced high grain yield.
- Taxon
- RiceOryza sativat0
- Material
- P42e0
- Treatment
- water deficit and low N nitrogen levelse0
- Outcome
- grain yielde0
- Direction
- highe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“P42 showed the less affected by water deficit and low N nitrogen levels, hence, produced the high grain yield.”
t0“Rice”
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