Yield formation of different single-season rice (Oryza sativa L. ) types and its relationships with meteorological factors in Yunnan Province of Southwest China

By using the 1994-2010 observation data of paddy rice growth period and yield from 14 agro-meteorological stations at different altitudes in Yunnan Province, this paper studied the rice yield formation and the effects of meteorological factors on low-yield rice yield components. According to the sys...

Full description

Saved in:
Bibliographic Details
Published inYing yong sheng tai xue bao Vol. 24; no. 10; p. 2831
Main Authors Zhong, Chu, Zhu, Ying-Mo, Zhu, Yong, Zhu, Bin, Zhang, Mao-Song, Xu, Meng-Ying
Format Journal Article
LanguageChinese
Published China 01.10.2013
Subjects
Biomass
China
Ecosystem
Meteorological Concepts
Oryza - growth & development
China
Online AccessGet more information

Cover

More Information
Summary:By using the 1994-2010 observation data of paddy rice growth period and yield from 14 agro-meteorological stations at different altitudes in Yunnan Province, this paper studied the rice yield formation and the effects of meteorological factors on low-yield rice yield components. According to the systematic cluster analysis of rice yield components and the rice types at the 14 stations, the rice was divided into 4 types, i. e., low-yield japonica rice, low-yield indica rice, high-yield japonica rice, and high-yield indica rice. The analysis of the yield components of the 4 rice types showed that there was a significant positive correlation between the spikelet number per square meter (sqm) and the rice yield. The yield of low-yield japonica was mainly affected by the seed setting rate and the spikelet number per sqm. For the other three rice types, the spikelet number per sqm had greater effects on the rice yield. The low-yield japonica rice was mainly affected by low temperature. At booting stage, low tempera
ISSN:1001-9332