Abstract
Abstract Soil pH not only plays a regulatory role in seed germination but also influences seedling development, flowering, and crop yield. The study investigated the germination characteristics of sorghum [ Sorghum bicolor (L.) Moench.] under varying pH to understand the potential ameliorative effects of seed priming using plant growth-promoting substances. Seeds were sown in Petri dishes with pH moistened solutions at 1, 3, 5, 7, 9, 11, and 13 respectively. These were replicated five times in the second stage, viable seeds were first primed in 150 ppm indole-3-acetic acid, gibberellic acid, and vitamin C before sowing in pH solutions. The experiment showed no significant changes in morphology or physiology of primed and unprimed seeds and no germination at extreme pH. However, there was a significant difference in the activity of enzymes, germination time, and speed as well as germination percentages of both primed and unprimed seeds. Although chemo-priming did not reverse the effect of pH, it was observed however that vitamin C had a significant effect on germination percentage at higher pH. Germination was observed to be impaired at extreme pH. Seeds did not respond to germination capacity suggesting an optimal pH range of 3 and 11 for germination without priming. However, priming did not show any improved germinability index. Seeds primed in the presence of light showed enhanced germination at pH 7. Generally, the germination index without priming showed better germination characteristics than primed seeds, which suggests pH interactions with primers may be a limiting factor.
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Claims 9
Claim · model-written summary
Primed and unprimed sorghum seeds showed no significant morphological or physiological changes.
- Taxon
- Sorghum bicolor
Sorghum bicolort0 - Treatment
- primede0
- Outcome
- morphology or physiologye0
- Direction
- no significant changese0
- Comparator
- unprimed seedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no significant changes in morphology or physiology of primed and unprimed seeds”
t0“Sorghum bicolor”
Claim · model-written summary
Sorghum seeds did not germinate at extreme pH.
- Taxon
- Sorghum bicolorSorghum bicolort0
- Outcome
- no germinatione0
- Qualifier
- extreme pHe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no germination at extreme pH”
t0“Sorghum bicolor”
Claim · model-written summary
Enzyme activity, germination time, speed and percentages differed significantly in primed and unprimed sorghum seeds.
- Taxon
- Sorghum bicolorSorghum bicolort0
- Outcome
- activity of enzymes, germination time, and speede0
- Qualifier
- both primed and unprimed seedse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a significant difference in the activity of enzymes, germination time, and speed as well as germination percentages of both primed and unprimed seeds”
t0“Sorghum bicolor”
Claim · model-written summary
Vitamin C significantly affected sorghum germination percentage at higher pH.
- Taxon
- Sorghum bicolorSorghum bicolort0
- Treatment
- vitamin Ce0
- Outcome
- germination percentagee0
- Qualifier
- higher pHe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“vitamin C had a significant effect on germination percentage at higher pH”
t0“Sorghum bicolor”
Claim · model-written summary
Sorghum germination was impaired at extreme pH.
- Taxon
- Sorghum bicolorSorghum bicolort0
- Outcome
- Germinatione0
- Direction
- impairede0
- Qualifier
- extreme pHe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Germination was observed to be impaired at extreme pH”
t0“Sorghum bicolor”
Claim · model-written summary
Sorghum germination without priming was suggested to be optimal between pH 3 and 11.
- Taxon
- Sorghum bicolorSorghum bicolort0
- Outcome
- germinatione0
- Value
- 3 and 11e0
- Qualifier
- without priminge0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an optimal pH range of 3 and 11 for germination without priming”
t0“Sorghum bicolor”
Claim · model-written summary
Priming did not improve the sorghum germinability index.
- Taxon
- Sorghum bicolorSorghum bicolort0
- Treatment
- priminge0
- Outcome
- germinability indexe0
- Direction
- did not show any improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“priming did not show any improved germinability index”
t0“Sorghum bicolor”
Claim · model-written summary
Light during priming enhanced sorghum germination at pH 7.
- Taxon
- Sorghum bicolorSorghum bicolort0
- Treatment
- primed in the presence of lighte0
- Outcome
- germinatione0
- Direction
- enhancede0
- Qualifier
- pH 7e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds primed in the presence of light showed enhanced germination at pH 7”
t0“Sorghum bicolor”
Claim · model-written summary
The unprimed sorghum germination index showed better germination characteristics than primed seeds.
- Taxon
- Sorghum bicolorSorghum bicolort0
- Treatment
- without priminge0
- Outcome
- germination indexe0
- Direction
- bettere0
- Comparator
- primed seedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the germination index without priming showed better germination characteristics than primed seeds”
t0“Sorghum bicolor”
The same questions in other papers
light · growth · Sorghum bicolor (sorghum)Positive and negative results
2 in the opposite direction
- no effect
- negative
seed treatment · growth · Sorghum bicolor (sorghum)Results agree
13 papers in the same direction as this paper
- positive
- positive
- positive
10 papers more in this group
See all 14 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.