Abstract
The effect of continuous light and complete dark period on seed germination to first leaf emergence was examined in BRRIdhan71 and BRRIdhan81 in controlled environment at 22 ± 2 ᵒC and 82± 2 % of relative humidity, with or without supplemental LED white light. In the dark, BRRIdhan71 had a germination rate of 97 percent and BRRIdhan81 had a germination rate of 57 percent. Germination was 92 percent in BRRIdhan81 and 77 percent in BRRIdhan71 under photoblastic conditions (Light). The dark and light treatments had a noticeable impact on the percentage of seeds that germinated. Coleoptile was longer in dark than light in BRRIdhan71. In both rice varieties, the light and dark treatments had little effect on the first leaf length, although the first leaf breadth increased noticeably in BRRIdhan81. The growth condition had an impact on root length, seedling fresh weight, and dry weight. Germination percent, coleoptile length, prophyll length, first leaf length, and root length all decreased in BRRIdhan71, whereas germination percent, first leaf length, first leaf breadth, seedling freash, and dry weight all increased significantly in BRRIdhan81.The findings imply that BRRIdhan71 and BRRIdhan81, in particular, responded to photoblastic treatment and predominantly possess photoblastic biocomponents in seed, which affect germination and subsequent growth phases. Rice seed during germinate in the field will light stress if photoblastism is not considered during the development and release of rice varieties for different seasons, such as Aman and Boro, because light affects seeding photomorphogenesis differently in different growth environments. Environ. Sci. & Natural Resources, 13(1&2): 43-49, 2020
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Claims 12
Claim · model-written summary
In darkness, BRRIdhan71 germination was 97 percent.
Verbatim
e0“In the dark, BRRIdhan71 had a germination rate of 97 percent”
Claim · model-written summary
In darkness, BRRIdhan81 germination was 57 percent.
Verbatim
e0“BRRIdhan81 had a germination rate of 57 percent”
Claim · model-written summary
Under light, BRRIdhan81 germination was 92 percent.
Verbatim
e0“Germination was 92 percent in BRRIdhan81 and 77 percent in BRRIdhan71 under photoblastic conditions (Light)”
Claim · model-written summary
Under light, BRRIdhan71 germination was 77 percent.
Verbatim
e0“Germination was 92 percent in BRRIdhan81 and 77 percent in BRRIdhan71 under photoblastic conditions (Light)”
Claim · model-written summary
BRRIdhan71 coleoptiles were longer in darkness than light.
Verbatim
e0“Coleoptile was longer in dark than light in BRRIdhan71.”
Claim · model-written summary
Light and dark treatments had little effect on first leaf length in both rice varieties.
- Taxon
- rice varieties
Oryza sativae0 - Treatment
- lighte0
- Outcome
- first leaf lengthe0
- Direction
- little effecte0
- Comparator
- darke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In both rice varieties, the light and dark treatments had little effect on the first leaf length”
Claim · model-written summary
BRRIdhan81 first leaf breadth increased noticeably under the light and dark treatments.
Verbatim
e0“the first leaf breadth increased noticeably in BRRIdhan81”
Claim · model-written summary
Growth conditions affected root length and seedling fresh and dry weights.
Not reportedTaxon
Verbatim
e0“The growth condition had an impact on root length, seedling fresh weight, and dry weight.”
Claim · model-written summary
BRRIdhan71 germination, coleoptile length, and prophyll length decreased.
Verbatim
e0“Germination percent, coleoptile length, prophyll length, first leaf length, and root length all decreased in BRRIdhan71”
Claim · model-written summary
BRRIdhan71 first leaf and root lengths decreased.
Verbatim
e0“Germination percent, coleoptile length, prophyll length, first leaf length, and root length all decreased in BRRIdhan71”
Claim · model-written summary
BRRIdhan81 germination and first leaf length and breadth increased significantly.
Verbatim
e0“germination percent, first leaf length, first leaf breadth, seedling freash, and dry weight all increased significantly in BRRIdhan81”
Claim · model-written summary
BRRIdhan81 seedling fresh and dry weights increased significantly.
Verbatim
e0“seedling freash, and dry weight all increased significantly in BRRIdhan81”
The same questions in other papers
light · growth · Oryza sativa (rice)Positive and negative results
39 papers in the same direction as this paper · 55 reporting no difference from an alternative
- positive
- negative
- positive
91 papers more in this group
See all 95 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.