Abstract
Light has a significant role in growth and development of plants because of its crucial role in photosynthesis and photo morphogenesis. If the amount of light intensity reaches the plants is reduced than the optimum level then it creates low light stress for plants and this problem is identified in the eastern and north-eastern region of India which is the major rice belt in our country. Therefore the present experiment was conducted during Kharif 2019 at plot no-4, Block-V of Department of Crop Physiology and Biochemistry, NRRI, Cuttack to study the Low light effect on the biochemical changes and grain yield of long duration rice cultivars. In the present research, 9 long duration rice varieties along with 2 check varieties were exposed to 75% light and 50% light condition in comparison to control (100% light) to know the leaf chlorophyll behaviour and yield during kharif (July‒November, 2019). Plants were grown in field condition with shade installation done 15days after transplanting to impose low light stress in plants. Among the varieties, Swarnaprabha was found with the highest total chlorophyll content in 100% L (2.311 mg g-1 fresh weight), 75% L (2.705 mg g-1 fresh weight) and 50% L (3.684 mg g-1 fresh weight) at 50% flowering stage. Similarly, Swarnaprabha was recorded with the highest chlorophyll at 7 days after 50% flowering. In both the cases, low light induced more chlorophyll in plants than normal light. Among the antioxidant enzymes, Peroxidase and Catalase exhibited an increased activity under low light stress, whereas Superoxide dismutase (SOD) exhibited decreased activity in low light stress. Besides, higher yield was recorded in normal light condition than 75% light and 50% light condition. Among the varieties Nasati Sali leads with higher yield in 100% (5.10 t ha-1) and 75% (4.27 t ha-1) light condition. On the other hand Swarnaprabha (3.05 t ha-1) having highest yield at 50% light intensity.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 13
Claim · model-written summary
Swarnaprabha had the highest chlorophyll at 100% light at 50% flowering.
- Taxon
- Oryza sativa L.
Oryza sativat0 - Material
- Swarnaprabhae0
- Organ / stage
- 50% flowering stagee0
- Treatment
- 100% Le0
- Outcome
- total chlorophyll contente0
- Direction
- higheste0
- Value
- 2.311 mg g-1 fresh weighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Swarnaprabha was found with the highest total chlorophyll content in 100% L (2.311 mg g-1 fresh weight), 75% L (2.705 mg g-1 fresh weight) and 50% L (3.684 mg g-1 fresh weight) at 50% flowering stage”
t0“Rice Varieties (Oryza sativa L.)”
Claim · model-written summary
Swarnaprabha had the highest chlorophyll at 75% light at 50% flowering.
- Taxon
- Oryza sativa L.Oryza sativat0
- Material
- Swarnaprabhae0
- Organ / stage
- 50% flowering stagee0
- Treatment
- 75% Le0
- Outcome
- total chlorophyll contente0
- Direction
- higheste0
- Value
- 2.705 mg g-1 fresh weighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Swarnaprabha was found with the highest total chlorophyll content in 100% L (2.311 mg g-1 fresh weight), 75% L (2.705 mg g-1 fresh weight) and 50% L (3.684 mg g-1 fresh weight) at 50% flowering stage”
t0“Rice Varieties (Oryza sativa L.)”
Claim · model-written summary
Swarnaprabha had the highest chlorophyll at 50% light at 50% flowering.
- Taxon
- Oryza sativa L.Oryza sativat0
- Material
- Swarnaprabhae0
- Organ / stage
- 50% flowering stagee0
- Treatment
- 50% Le0
- Outcome
- total chlorophyll contente0
- Direction
- higheste0
- Value
- 3.684 mg g-1 fresh weighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Swarnaprabha was found with the highest total chlorophyll content in 100% L (2.311 mg g-1 fresh weight), 75% L (2.705 mg g-1 fresh weight) and 50% L (3.684 mg g-1 fresh weight) at 50% flowering stage”
t0“Rice Varieties (Oryza sativa L.)”
Claim · model-written summary
Swarnaprabha also had the highest chlorophyll seven days after 50% flowering.
- Taxon
- Oryza sativa L.Oryza sativat0
- Material
- Swarnaprabhae0
- Organ / stage
- 7 days after 50% floweringe0
- Outcome
- chlorophylle0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Swarnaprabha was recorded with the highest chlorophyll at 7 days after 50% flowering”
t0“Rice Varieties (Oryza sativa L.)”
Claim · model-written summary
Low light increased chlorophyll relative to normal light.
- Taxon
- Oryza sativa L.Oryza sativat0
- Treatment
- low lighte0
- Outcome
- chlorophylle0
- Direction
- moree0
- Comparator
- normal lighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“low light induced more chlorophyll in plants than normal light”
t0“Rice Varieties (Oryza sativa L.)”
Claim · model-written summary
Low light increased peroxidase activity.
- Taxon
- Oryza sativa L.Oryza sativat0
- Treatment
- low light stresse0
- Outcome
- Peroxidasee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peroxidase and Catalase exhibited an increased activity under low light stress”
t0“Rice Varieties (Oryza sativa L.)”
Claim · model-written summary
Low light increased catalase activity.
- Taxon
- Oryza sativa L.Oryza sativat0
- Treatment
- low light stresse0
- Outcome
- Catalasee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peroxidase and Catalase exhibited an increased activity under low light stress”
t0“Rice Varieties (Oryza sativa L.)”
Claim · model-written summary
Low light decreased superoxide dismutase activity.
- Taxon
- Oryza sativa L.Oryza sativat0
- Treatment
- low light stresse0
- Outcome
- Superoxide dismutase (SOD)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Superoxide dismutase (SOD) exhibited decreased activity in low light stress”
t0“Rice Varieties (Oryza sativa L.)”
Claim · model-written summary
Yield was higher in normal light than 75% light.
- Taxon
- Oryza sativa L.Oryza sativat0
- Treatment
- 75% lighte0
- Outcome
- yielde0
- Direction
- highere0
- Comparator
- normal light conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher yield was recorded in normal light condition than 75% light and 50% light condition”
t0“Rice Varieties (Oryza sativa L.)”
Claim · model-written summary
Yield was higher in normal light than 50% light.
- Taxon
- Oryza sativa L.Oryza sativat0
- Treatment
- 50% lighte0
- Outcome
- yielde0
- Direction
- highere0
- Comparator
- normal light conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher yield was recorded in normal light condition than 75% light and 50% light condition”
t0“Rice Varieties (Oryza sativa L.)”
Claim · model-written summary
Nasati Sali had the highest yield under 100% light, 5.10 t ha-1.
- Taxon
- Oryza sativa L.Oryza sativat0
- Material
- Nasati Salie0
- Treatment
- 100%e0
- Outcome
- yielde0
- Direction
- highere0
- Value
- 5.10 t ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nasati Sali leads with higher yield in 100% (5.10 t ha-1) and 75% (4.27 t ha-1) light condition”
t0“Rice Varieties (Oryza sativa L.)”
Claim · model-written summary
Nasati Sali had the highest yield under 75% light, 4.27 t ha-1.
- Taxon
- Oryza sativa L.Oryza sativat0
- Material
- Nasati Salie0
- Treatment
- 75%e0
- Outcome
- yielde0
- Direction
- highere0
- Value
- 4.27 t ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nasati Sali leads with higher yield in 100% (5.10 t ha-1) and 75% (4.27 t ha-1) light condition”
t0“Rice Varieties (Oryza sativa L.)”
Claim · model-written summary
Swarnaprabha had the highest yield at 50% light, 3.05 t ha-1.
- Taxon
- Oryza sativa L.Oryza sativat0
- Material
- Swarnaprabhae0
- Treatment
- 50% light intensitye0
- Outcome
- yielde0
- Direction
- higheste0
- Value
- 3.05 t ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Swarnaprabha (3.05 t ha-1) having highest yield at 50% light intensity”
t0“Rice Varieties (Oryza sativa L.)”
The same questions in other papers
light · yield · Oryza sativa (rice)Results differ
31 papers in the same direction as this paper · 36 in the opposite direction
- negative
- positive
- positive
64 papers more in this group
See all 68 papers →light · physiology: pigments · Oryza sativa (rice)Positive and negative results
4 papers in the same direction as this paper · 11 in the opposite direction
- no effect
- negative
- negative
12 papers more in this group
See all 16 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.