Claim · model-written summary
Plant height, 1000-grain weight and number of grains per panicle of indica hybrid rice slightly increased during genetic improvement.
Verbatim
t0“Changes in Agronomic Traits of Indica Hybrid Rice during Genetic Improvement”
e1“During the 30 years of genetic improvement,the effective panicle number per plant was progressively decreased,which caused the decrease of grain yield and biomass per plant of hybrid rice combinations in spite of the slightly increased plant height,1000-grain weight and number of grains per panicle”
Title
Changes in Agronomic Traits of Indica Hybrid Rice during Genetic Improvement
Danying Wang; Chunmei Xu; Yuan Mao Jiang; et al. Zhongguo shuidao kexue 2010
Other claims from this paper (11)
- Observation Effective panicle number per plant of indica hybrid rice progressively decreased during 30 years of genetic improvement.
- Observation Grain yield per plant of indica hybrid rice decreased during 30 years of genetic improvement.
- Observation Biomass per plant of indica hybrid rice decreased during 30 years of genetic improvement.
- Observation Transformation percentage of matter in stem and sheath of indica hybrid rice decreased after flowering.
- Observation Leaf photosynthetic capacity of indica hybrid rice increased after flowering.
- Observation Panicle weight of indica hybrid rice increased over the genetic improvement series.
- Association Biomass per plant was significantly correlated with grain yield per plant in indica hybrid rice.
- Association Number of grains per panicle was significantly correlated with grain yield per plant in indica hybrid rice.
- Association Biomass per plant was the key factor affecting yield per plant of indica hybrid rice, according to path analysis.
- Recommendation Panicle number is as important as large panicle in rice high-yield cultivation.
- Recommendation Tillering ability should not be neglected in rice breeding.
Oryza sativa