Open Access
ARTICLE
Location Distribution Characteristics in Leaf Lateral Asymmetry of Hybrid Indica Rice
Jie Li1,2, Yuehua Feng1,3,*, Jinfeng Peng1, Xiaoke Wang1, Dinghua Yang2, Guiling Xu1
1 College of Agronomy, Guizhou University, Guiyang, 550025, China
2 Qiandongnan Vocational and Technical College for Nationalities, Kaili, 556000, China
3 Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guiyang, 550025, China
* Corresponding Author: Yuehua Feng. Email:
Phyton-International Journal of Experimental Botany 2020, 89(3), 657-666. https://doi.org/10.32604/phyton.2020.010969
Received 10 April 2020; Accepted 22 May 2020; Issue published 22 June 2020
Abstract
Rice leaves show lateral asymmetry. Differences in width, thickness,
chlorophyll meter readings, nitrogen content, density, and yield on each asymmetrical have been reported. However, limited information is available on the distribution characteristics of the smooth side (SS) and rough side (RS) of rice leaves.
The SS of rice leaves can be divided into two types according to its location in
leaf: one is the smooth side appearing on the left (SSAL) of the leaf, while the
smooth side of the other type appears on the right (SSAR). Through the investigation of four rice varieties, we identified that the proportion of SSAL or SSAR of
flag leaves on main stems or tillers was close to 0.50 in the rice population. On the
same tiller stem, SSAL and SSAR present alternately, and the SS always stretches
ahead of the RS in the curled state. Among the tiller flag leaves of a single rice
plant, the proportion of tiller flag leaves with SSAL or SSAR to the total number
of tillers is a discrete random variable. Frequency distribution analysis of these
proportions showed that the percent of frequency of some class limits was close
to each other, and the ratios of percent of frequency of SSAL to SSAR were close
to 1:1. To our knowledge, this is a novel finding in rice canopy morphology.
According to this study, we can divide rice population into two groups in four
hybrid rice varieties.
Keywords
Cite This Article
Li, J., Feng, Y., Peng, J., Wang, X., Yang, D. et al. (2020). Location Distribution Characteristics in Leaf Lateral Asymmetry of Hybrid Indica Rice.
Phyton-International Journal of Experimental Botany, 89(3), 657–666. https://doi.org/10.32604/phyton.2020.010969