Open AccessEffect of shading on biomass and N mass partitioning in paddy rice seedlings through allometric analysis
Author(s) -
Fafu Zhang,
J. Li,
X-T L� Z-W Wang,
Wei Mao,
Huaguo Zhang,
Jiguang Guo,
J.W. Li
Publication year - 2017
Publication title -
cereal research communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.28
H-Index - 32
eISSN - 1788-9170
pISSN - 0133-3720
DOI - 10.1556/0806.45.2017.016
Subject(s) - allometry , shading , biomass (ecology) , oryza sativa , shoot , agronomy , biomass partitioning , botany , poaceae , rice plant , biology , sunlight , horticulture , ecology , art , visual arts , biochemistry , physics , astronomy , gene
An allometric analysis of biomass and N mass allocation of rice (Oryza sativa L.) seedlings under non-shaded (100% of full sunlight) and shaded (30% of full sunlight) treatments were conducted. The allometric slopes and the intercepts were estimated using standardized major axis regression. Results indicated that biomass was preferentially allocated to stems during plant ontogeny, and leaves and roots were isometric when rice seedlings were not shaded. Under shade, however, more biomass was allocated to leaves and stems. N mass allocation was also altered by shading in that more N mass was allocated to the aerial shoots, and plants accumulated less N mass when shaded. Our study revealed that both biomass and N mass were in accordance with the optimal partitioning theory
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