Abstract
The utilization of hybrid vigor is an important breakthrough in the history of rice breeding. To select the best hybrid combinations, breeders manually perform extensive testing of hybridizations between restorer and sterile lines, which is a laborious and time-consuming process. Here, we report that a modified flowering stimulant containing methyl jasmonate (MeJA), 6-benzylamine adenine and kinetin effectively promotes the flowering and seed set of male-sterile rice lines. Different concentrations of the ingredients were tested to identify an optimal formulation. Seed quality evaluation indicated that hybrid seeds from plants sprayed with the flowering stimulant had a higher germination rate than seeds from plants prepared by glume-cutting. In summary, the modified flowering stimulant described in this study may help reduce the labor requirement associated with hybrid rice breeding and improve yield and efficiency. Keywords: hybrid rice, cross, flowering stimulant, methyl jasmonate, kinetin DOI: 10.25165/j.ijabe.20201303.5632 Citation: Zheng L, Zhang S X, Xue F Y, Yun Y F, Liu P, Yuan H, et al. Improving the efficiency of hybrid combination preparation in rice breeding by a modified flowering stimulant. Int J Agric & Biol Eng, 2020; 13(3): 36–40.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 5
Claim · model-written summary
The modified flowering stimulant promoted flowering of male-sterile rice lines.
- Taxon
- rice
Oryza sativae0 - Material
- male-sterile rice linese0
- Treatment
- a modified flowering stimulant containing methyl jasmonate (MeJA), 6-benzylamine adenine and kinetine0
- Outcome
- floweringe0
- Direction
- promotese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a modified flowering stimulant containing methyl jasmonate (MeJA), 6-benzylamine adenine and kinetin effectively promotes the flowering and seed set of male-sterile rice lines”
Claim · model-written summary
The modified flowering stimulant promoted seed set of male-sterile rice lines.
- Taxon
- riceOryza sativae0
- Material
- male-sterile rice linese0
- Treatment
- a modified flowering stimulant containing methyl jasmonate (MeJA), 6-benzylamine adenine and kinetine0
- Outcome
- seed sete0
- Direction
- promotese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a modified flowering stimulant containing methyl jasmonate (MeJA), 6-benzylamine adenine and kinetin effectively promotes the flowering and seed set of male-sterile rice lines”
Claim · model-written summary
Hybrid seeds from stimulant-sprayed plants had higher germination than seeds prepared by glume-cutting.
- Taxon
- riceOryza sativat0
- Treatment
- sprayed with the flowering stimulante0
- Outcome
- germination ratee0
- Direction
- highere0
- Comparator
- glume-cuttinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hybrid seeds from plants sprayed with the flowering stimulant had a higher germination rate than seeds from plants prepared by glume-cutting”
t0“rice breeding”
Claim · model-written summary
The authors suggest the stimulant may reduce labor for hybrid rice breeding.
- Taxon
- riceOryza sativae0
- Outcome
- reduce the labor requiremente0
- Qualifier
- may helpe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the modified flowering stimulant described in this study may help reduce the labor requirement associated with hybrid rice breeding and improve yield and efficiency”
Claim · model-written summary
The authors suggest the stimulant may improve yield and efficiency.
- Taxon
- riceOryza sativae0
- Outcome
- improve yield and efficiencye0
- Qualifier
- may helpe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the modified flowering stimulant described in this study may help reduce the labor requirement associated with hybrid rice breeding and improve yield and efficiency”
The same questions in other papers
(-)-methyl jasmonate · yield · Oryza sativa (rice)Results differ
12 papers in the same direction as this paper · 3 in the opposite direction
- negative
- no effect
- negative
12 papers more in this group
See all 16 papers →kinetin · yield · Oryza sativa (rice)Results differ
23 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
22 papers more in this group
See all 26 papers →(-)-methyl jasmonate · phenology · Oryza sativa (rice)Results agree
2 papers in the same direction as this paper
- positive
- positive
stage · phenology · Oryza sativa (rice)Positive and negative results
1 paper in the same direction as this paper · 3 in the opposite direction
- no effect
- negative
- negative
1 paper more in this group
See all 5 papers →stage · growth · Oryza sativa (rice)Positive and negative results
15 papers in the same direction as this paper · 13 in the opposite direction
- negative
- negative
- negative
25 papers more in this group
See all 29 papers →stage · yield · Oryza sativa (rice)Positive and negative results
87 papers in the same direction as this paper · 35 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- negative
120 papers more in this group
See all 124 papers →application · growth · Oryza sativa (rice)Positive and negative results
273 papers in the same direction as this paper · 36 in the opposite direction · 3 reporting no difference from an alternative
- negative
- negative
- no effect
309 papers more in this group
See all 313 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.