Abstract
This report studies effect of Lanthanum on physiological and biochemical bases of seed vigor of rice. The results of experiments showed that Lanthanum nitrate accelerated germination and increased seed vigor of rice. With 20mg/L Lanthanum nitrate treatment was best, and with 15mg/L Lanthanum nitrate treatment was the second best. It is Lanthanum that could increase respiratory rate,activities of hydrolytic enzymes, such as amylase, proteinase and lipase,and contents of plant hormones, such as auxins (IAA), gibberellins (GAs) and cytokinin (CTK) during germination. The enhancement of GAs is the most obvious. The change of abscisic acid (ABA) is relativelystable. However,with 30 and 35 mg/L Lanthanum nitrate treatments could inhibit seed germination, respiration and activities of hydrolitc enzymes,and obviously decreased contents of IAA,GAs and CTK.
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Claims 10
Claim · model-written summary
Lanthanum nitrate accelerated rice germination and increased seed vigor.
- Taxon
- rice
Oryza sativae0 - Treatment
- Lanthanum nitratee0
- Outcome
- seed vigore0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lanthanum nitrate accelerated germination and increased seed vigor of rice.”
Claim · model-written summary
The 20mg/L lanthanum nitrate treatment performed best.
- Taxon
- riceOryza sativae0t0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With 20mg/L Lanthanum nitrate treatment was best”
t0“rice”
Claim · model-written summary
The 15mg/L lanthanum nitrate treatment was second best.
- Taxon
- riceOryza sativae0t0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with 15mg/L Lanthanum nitrate treatment was the second best”
t0“rice”
Claim · model-written summary
Lanthanum increased respiratory rate during germination.
- Taxon
- riceOryza sativae0t0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lanthanum that could increase respiratory rate,activities of hydrolytic enzymes”
t0“rice”
Claim · model-written summary
Lanthanum increased hydrolytic enzyme activities during germination.
- Taxon
- riceOryza sativae0t0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lanthanum that could increase respiratory rate,activities of hydrolytic enzymes, such as amylase, proteinase and lipase”
t0“rice”
Claim · model-written summary
Lanthanum increased auxin, gibberellin and cytokinin contents during germination, most obviously gibberellins.
- Taxon
- riceOryza sativae0t0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lanthanum that could increase respiratory rate,activities of hydrolytic enzymes, such as amylase, proteinase and lipase,and contents of plant hormones, such as auxins (IAA), gibberellins (GAs) and cytokinin (CTK) during germination. The enhancement of GAs is the most obvious.”
t0“rice”
Claim · model-written summary
Abscisic acid changed relatively little.
- Taxon
- riceOryza sativae0t0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The change of abscisic acid (ABA) is relativelystable.”
t0“rice”
Claim · model-written summary
High lanthanum nitrate doses inhibited rice seed germination and respiration.
- Taxon
- riceOryza sativae0t0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with 30 and 35 mg/L Lanthanum nitrate treatments could inhibit seed germination, respiration”
t0“rice”
Claim · model-written summary
High lanthanum nitrate doses inhibited hydrolytic enzyme activities.
- Taxon
- riceOryza sativae0t0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with 30 and 35 mg/L Lanthanum nitrate treatments could inhibit seed germination, respiration and activities of hydrolitc enzymes”
t0“rice”
Claim · model-written summary
High lanthanum nitrate doses decreased IAA, GAs and CTK contents.
- Taxon
- riceOryza sativae0t0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with 30 and 35 mg/L Lanthanum nitrate treatments could inhibit seed germination, respiration and activities of hydrolitc enzymes,and obviously decreased contents of IAA,GAs and CTK”
t0“rice”
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