Claim · model-written summary
Nitrogen withdrawal during a critical growth period decreased rice upper three leaf-blades.
- Taxon
- rice plant
Oryza sativae0 - Treatment
- no supply of nitrogen during the critical growth periode0
- Outcome
- upper three leaf-bladese0
- Direction
- decreasee0
Not reportedComparator
Verbatim
e0“As previously reported, no supply of nitrogen during the critical growth period in which the plant type after heading was predetermined made the rice plant decrease the number of spikelets per unit area, length of lower three internodes and upper three leaf-blades, but increase the amount of carbohydrates in straw at heading stage, and as a result of it, favoured ripening and prevented the plant from lodging.”
Title
Seizo MATSUSHIMA; Genshichi WADA; Akio MATSUZAKI; et al. Japanese Journal of Crop Science 1968. doi:10.1626/jcs.37.175
Other claims from this paper (14)
- Intervention effect Nitrogen withdrawal during a critical growth period decreased rice number of spikelets per unit area.
- Intervention effect Nitrogen withdrawal during a critical growth period decreased rice length of lower three internodes.
- Intervention effect Nitrogen withdrawal during a critical growth period increased rice amount of carbohydrates in straw.
- Intervention effect Nitrogen withdrawal during a critical growth period favouredd rice ripening.
- Intervention effect Nitrogen withdrawal during a critical growth period preventedd rice lodging.
- Intervention effect Stopping nitrogen supply for 20 days starting 59 days before heading gave high grain yield through more ripened grains.
- Intervention effect Stopping nitrogen supply for 20 days starting 49 days before heading gave high grain yield through more ripened grains.
- Intervention effect Stopping nitrogen supply for 20 days starting 42 days before heading gave high grain yield through more ripened grains.
- Intervention effect Upper three leaf blades were shortest after nitrogen withdrawal from 42 to 20 days before heading.
- Intervention effect Lower three internodes were shortest after nitrogen withdrawal from 49 to 31 days before heading.
- Observation Improved plant type and light-use efficiency had little detectable effect on carbon assimilation, post-heading dry matter, or grain yield.
- Observation Post-heading photosynthetic production was mainly governed by leaf-blade nitrogen at heading and nitrogen supply after heading.
- Observation Post-heading photosynthetic production was scarcely affected by leaf-area index, leaf length, or light-use efficiency.
- Observation The present community-culture results differed considerably from earlier pot experiments.