Abstract
Using naturally aged F1 seed and artificially aged F1 seed of hybrid rice cultivar “Shan-you 63” as materials, 20 traits (10 traits measured in laboratory and 10 traits measured in paddy field) were compared between primed seed and corresponding control (non-primed seed). Results showed that germination percentage increased by 11.7% for naturally aged F1 seed after primed with 0.5% PVA (polyvinyl alcohol) + 1.0% KNO3 and by 10.3% for artificially aged F1 seed after treated with 1.0% PVA+ 1.0%KNO3. Germination energy and vigor index of primed seeds were significantly enhanced. Activities of SOD, POD and CAT of primed seeds were significantly increased. Content of MDA and soluble sugar in seed leakage of primed seeds were significantly decreased. Compared with corresponding non-primed seeds, seedling establishment rate, seedling height and seedling weight significantly increased, and mean emergence time shortened obviously on-farm in 2006 and in 2007 in primed seeds. Under transplanting condition, there was no significant difference between primed seed and non-primed seed in plant height, panicle number per plant, panicle length, panicle weight and grain yield. Key words: Hybrid rice, aged seed, priming technology, germination, seedling establishment, biochemical property, yield related traits.
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Claims 9
Claim · model-written summary
Priming with 0.5% PVA + 1.0% KNO3 increased germination percentage by 11.7% in naturally aged hybrid rice F1 seed compared with non-primed seed.
- Taxon
- hybrid rice
Oryza sativae0 - Material
- Shan-you 63e0
- Organ / stage
- F1 seede0
- Treatment
- primed with 0.5% PVA (polyvinyl alcohol) + 1.0% KNO3e1
- Outcome
- germination percentagee1
- Direction
- increasede1
- Value
- 11.7%e1
- Qualifier
- naturally agede1
- Comparator
- corresponding control (non-primed seed)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Using naturally aged F1 seed and artificially aged F1 seed of hybrid rice cultivar “Shan-you 63” as materials, 20 traits (10 traits measured in laboratory and 10 traits measured in paddy field) were compared between primed seed and corresponding control (non-primed seed)”
e1“Results showed that germination percentage increased by 11.7% for naturally aged F1 seed after primed with 0.5% PVA (polyvinyl alcohol) + 1.0% KNO3 and by 10.3% for artificially aged F1 seed after treated with 1.0% PVA+ 1.0%KNO3”
Claim · model-written summary
Priming with 1.0% PVA + 1.0% KNO3 increased germination percentage by 10.3% in artificially aged hybrid rice F1 seed compared with non-primed seed.
- Taxon
- hybrid riceOryza sativae0
- Material
- Shan-you 63e0
- Organ / stage
- F1 seede0
- Treatment
- 1.0% PVA+ 1.0%KNO3e1
- Outcome
- germination percentagee1
- Direction
- increasede1
- Value
- 10.3%e1
- Qualifier
- artificially agede1
- Comparator
- corresponding control (non-primed seed)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Using naturally aged F1 seed and artificially aged F1 seed of hybrid rice cultivar “Shan-you 63” as materials, 20 traits (10 traits measured in laboratory and 10 traits measured in paddy field) were compared between primed seed and corresponding control (non-primed seed)”
e1“Results showed that germination percentage increased by 11.7% for naturally aged F1 seed after primed with 0.5% PVA (polyvinyl alcohol) + 1.0% KNO3 and by 10.3% for artificially aged F1 seed after treated with 1.0% PVA+ 1.0%KNO3”
Claim · model-written summary
Germination energy and vigor index of primed hybrid rice seed were significantly enhanced compared with non-primed seed.
- Taxon
- hybrid riceOryza sativae0
- Treatment
- primed seedse2
- Outcome
- Germination energy and vigor indexe2
- Direction
- enhancede2
- Comparator
- corresponding control (non-primed seed)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Using naturally aged F1 seed and artificially aged F1 seed of hybrid rice cultivar “Shan-you 63” as materials, 20 traits (10 traits measured in laboratory and 10 traits measured in paddy field) were compared between primed seed and corresponding control (non-primed seed)”
e2“Germination energy and vigor index of primed seeds were significantly enhanced”
Claim · model-written summary
Activities of SOD, POD and CAT were significantly increased in primed hybrid rice seed compared with non-primed seed.
- Taxon
- hybrid riceOryza sativae0
- Treatment
- primed seedse3
- Outcome
- Activities of SOD, POD and CATe3
- Direction
- increasede3
- Comparator
- corresponding control (non-primed seed)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Using naturally aged F1 seed and artificially aged F1 seed of hybrid rice cultivar “Shan-you 63” as materials, 20 traits (10 traits measured in laboratory and 10 traits measured in paddy field) were compared between primed seed and corresponding control (non-primed seed)”
e3“Activities of SOD, POD and CAT of primed seeds were significantly increased”
Claim · model-written summary
Content of MDA and soluble sugar in seed leakage of primed hybrid rice seed was significantly decreased compared with non-primed seed.
- Taxon
- hybrid riceOryza sativae0
- Treatment
- primed seedse4
- Outcome
- Content of MDA and soluble sugar in seed leakagee4
- Direction
- decreasede4
- Comparator
- corresponding control (non-primed seed)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Using naturally aged F1 seed and artificially aged F1 seed of hybrid rice cultivar “Shan-you 63” as materials, 20 traits (10 traits measured in laboratory and 10 traits measured in paddy field) were compared between primed seed and corresponding control (non-primed seed)”
e4“Content of MDA and soluble sugar in seed leakage of primed seeds were significantly decreased”
Claim · model-written summary
Seedling establishment rate, seedling height and seedling weight of primed hybrid rice seed were significantly increased compared with non-primed seed.
- Taxon
- hybrid riceOryza sativae0
- Treatment
- primed seedse5
- Outcome
- seedling establishment rate, seedling height and seedling weighte5
- Direction
- significantly increasede5
- Comparator
- corresponding non-primed seedse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Using naturally aged F1 seed and artificially aged F1 seed of hybrid rice cultivar “Shan-you 63” as materials, 20 traits (10 traits measured in laboratory and 10 traits measured in paddy field) were compared between primed seed and corresponding control (non-primed seed)”
e5“Compared with corresponding non-primed seeds, seedling establishment rate, seedling height and seedling weight significantly increased, and mean emergence time shortened obviously on-farm in 2006 and in 2007 in primed seeds”
Claim · model-written summary
Mean emergence time of primed hybrid rice seed was shortened on-farm in 2006 and 2007 compared with non-primed seed.
- Taxon
- hybrid riceOryza sativae0
- Treatment
- primed seedse5
- Outcome
- mean emergence timee5
- Direction
- shortenede5
- Comparator
- corresponding non-primed seedse5
- Setting
- on-farme5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Using naturally aged F1 seed and artificially aged F1 seed of hybrid rice cultivar “Shan-you 63” as materials, 20 traits (10 traits measured in laboratory and 10 traits measured in paddy field) were compared between primed seed and corresponding control (non-primed seed)”
e5“Compared with corresponding non-primed seeds, seedling establishment rate, seedling height and seedling weight significantly increased, and mean emergence time shortened obviously on-farm in 2006 and in 2007 in primed seeds”
Claim · model-written summary
Under transplanting, primed hybrid rice seed did not differ significantly from non-primed seed in plant height, panicle number per plant and panicle length.
- Taxon
- hybrid riceOryza sativae0
- Treatment
- primed seede6
- Outcome
- plant height, panicle number per plant, panicle lengthe6
- Direction
- no significant differencee6
- Qualifier
- Under transplanting conditione6
- Comparator
- non-primed seede6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Using naturally aged F1 seed and artificially aged F1 seed of hybrid rice cultivar “Shan-you 63” as materials, 20 traits (10 traits measured in laboratory and 10 traits measured in paddy field) were compared between primed seed and corresponding control (non-primed seed)”
e6“Under transplanting condition, there was no significant difference between primed seed and non-primed seed in plant height, panicle number per plant, panicle length, panicle weight and grain yield”
Claim · model-written summary
Under transplanting, primed hybrid rice seed did not differ significantly from non-primed seed in panicle weight and grain yield.
- Taxon
- hybrid riceOryza sativae0
- Treatment
- primed seede6
- Outcome
- panicle weight and grain yielde6
- Direction
- no significant differencee6
- Qualifier
- Under transplanting conditione6
- Comparator
- non-primed seede6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Using naturally aged F1 seed and artificially aged F1 seed of hybrid rice cultivar “Shan-you 63” as materials, 20 traits (10 traits measured in laboratory and 10 traits measured in paddy field) were compared between primed seed and corresponding control (non-primed seed)”
e6“Under transplanting condition, there was no significant difference between primed seed and non-primed seed in plant height, panicle number per plant, panicle length, panicle weight and grain yield”
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