Abstract
Investigations on premature heading were made on 25 plots of Peiliangyou Teqing, a high-yieldingtwo-line hybrid rice combination. Supplementary experiments were made with the same combination under different treatments of seedling-raising methods, sowing date, sowing rate, temporary planting densities, and transplanting densities. Characteristics in occurrence of premature heading and its influences on yield components wereanalyzed. It was found that longer seedling age and higher nitrogen application were the major factors causing premature heading. Heavy premature heading could cause reduced spikelet number per panicle and 1000-grain weight,and decrease the yield by a margin of 12-14%. Light premature heading would not cause yield loss under highyielding cultivation,since later occurring tillers could compensate the total panicle number, and premature headingpanicles had a higher seed setting rate. An evaluation system for premature heading was established based on thevegetative growth of rice plants.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher.
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 8
Claim · model-written summary
Longer seedling age caused premature heading.
Not reportedDirection
Verbatim
e0“longer seedling age and higher nitrogen application were the major factors causing premature heading”
t0“Rice Peiliangyou Teqing”
Claim · model-written summary
Higher nitrogen application caused premature heading.
Not reportedDirection
Verbatim
e0“longer seedling age and higher nitrogen application were the major factors causing premature heading”
t0“Rice Peiliangyou Teqing”
Claim · model-written summary
Heavy premature heading reduced spikelet number per panicle and 1000-grain weight.
Verbatim
e0“Heavy premature heading could cause reduced spikelet number per panicle and 1000-grain weight”
t0“Rice Peiliangyou Teqing”
Claim · model-written summary
Heavy premature heading could decrease yield by 12-14%.
Verbatim
e0“Heavy premature heading could cause reduced spikelet number per panicle and 1000-grain weight,and decrease the yield by a margin of 12-14%”
t0“Rice Peiliangyou Teqing”
Claim · model-written summary
Light premature heading caused no yield loss under high yielding cultivation.
Verbatim
e0“Light premature heading would not cause yield loss under highyielding cultivation”
t0“Rice Peiliangyou Teqing”
Claim · model-written summary
Later tillers compensated total panicle number under light premature heading.
Verbatim
e0“later occurring tillers could compensate the total panicle number”
t0“Rice Peiliangyou Teqing”
Claim · model-written summary
Premature heading panicles had a higher seed setting rate.
Verbatim
e0“premature headingpanicles had a higher seed setting rate”
t0“Rice Peiliangyou Teqing”
Claim · model-written summary
An evaluation system for premature heading was established based on vegetative growth.
- Taxon
- rice
Oryza sativae0 - Outcome
- evaluation system for premature headinge0
- Qualifier
- thevegetative growthe0
- Comparator
- thevegetative growthe0
Not reportedValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An evaluation system for premature heading was established based on thevegetative growth of rice plants”