Comparison of architecture among different cultivars of hybrid rice using a spatial light model based on 3-D digitising
Bangyou Zheng A , Lijuan Shi B , Yuntao Ma A , Qiyun Deng B , Baoguo Li A and Yan Guo A CA Key Laboratory of Plant-soil Interactions, Ministry of Education, College of Resources and Environment, China Agricultural University, 100193 Beijing, China.
B China National Hybrid Rice R&D Center, 410125 Changsha, China.
C Corresponding author. Email: yan.guo@cau.edu.cn
This paper originates from a presentation at the 5th International Workshop on Functional–Structural Plant Models, Napier, New Zealand, November 2007.
Functional Plant Biology 35(10) 900-910 https://doi.org/10.1071/FP08060
Submitted: 8 March 2008 Accepted: 25 September 2008 Published: 11 November 2008
Abstract
Modification of plant types (i.e. plant architecture) is an important strategy to enhance the yield potential of crops. The aims of this study were to specify rice plant types using 3-D modelling methodology. The architecture of three typical hybrid rice cultivars were measured in situ in a paddy field using a 3-D digitiser at four development stages from the panicle initiation to the filling stage. The structural parameters of the rice canopies were calculated and their light capture and potential carbon gain were simulated based on a 3-D light model. The results confirmed that a plant type with steeper leaf angles let light penetrate more deeply with relatively uniform light distribution in the canopy at higher sun elevation angles, although this result was related to leaf area index. The variations of plant types, however, did not convert into differences of light distribution across rice varieties at lower sun elevation angles. Light use efficiency at the higher leaf area index could be enhanced by reducing mutual-shading. These results indicate that a promising approach to quantify the rice architecture in situ is to combine 3-D digitising and a 3-D light model to evaluate light interception and photosynthesis of rice plant types.
Additional keywords: functional–structural plant model, ideotype, leaf angle, light distribution, photosynthesis, plant architecture, Oryza sativa, super high-yielding breeding.
Acknowledgements
This study was sponsored by ‘863’ Hi-Tech Research and Development Program of China (2006AA10Z231), and the Program for Changjiang Scholars and Innovative Research Team in University (IRT0412). We are grateful to Lijie Zhou, Wen Zhuang, Yuedong Xiong and Chuanguang Zhou for their assistance in field measurements, and Professor Albert Weiss for helpful comments on the manuscript.
Chen HD,
Karplus VJ,
Ma H, Deng XW
(2006) Plant biology research comes of age in China. The Plant Cell 18, 2855–2864.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
[Verified 6 October 2008]
Rich PM
(1990) Characterizing plant canopies with hemispherical photographs. Remote Sensing Reviews 5, 13–29.
Sasahara T,
Takahashi T,
Kayaba T, Tsunoda S
(1992) A new strategy for increasing plant productivity and yield of rice. International Rice Commission Newsletter 41, 1–6.
Setter TL,
Conocono EA,
Egdane JA, Kropff MJ
(1995) Possibility of increasing yield potential of rice by reducing panicle height in the canopy. I. Effects of panicles on light interception and canopy photosynthesis. Australian Journal of Plant Physiology 22, 441–451.
Sinoquet H,
Stephan J,
Sonohat G,
Lauri PE, Monney P
(2007) Simple equations to estimate light interception by isolated trees from canopy structure features: assessment with three-dimensional digitized apple trees. New Phytologist 175, 94–106.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Sonohat G,
Sinoquet H,
Varlet-Grancher C,
Rakocevic M,
Jacquet A,
Simon JC, Adam B
(2002) Leaf dispersion and light partitioning in three-dimensionally digitized tall fescue-white clover mixtures. Plant, Cell & Environment 25, 529–538.
| Crossref | GoogleScholarGoogle Scholar |
Thomas H, Smart CM
(1993) Crops that stay green. Annals of Applied Biology 123, 193–219.
| Crossref | GoogleScholarGoogle Scholar |
Virk PS,
Khush GS, Peng SB
(2004) Breeding to enhance yield potential of rice at IRRI: the ideotype approach. International Rice Research Notes 29, 5–9.
Wang XP,
Guo Y,
Li BG,
Wang XY, Ma YT
(2006) Evaluating a three dimensional model of diffuse photosynthetically active radiation in maize canopies. International Journal of Biometeorology 50, 349–357.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Watanabe T,
Hanan JS,
Room PM,
Hasegawa T,
Nakagawa H, Takahashi W
(2005) Rice morphogenesis and plant architecture: measurement, specification and the reconstruction of structural development by 3-D architectural modelling. Annals of Botany 95, 1131–1143.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Werner C,
Ryel RJ,
Correia O, Beyschlag W
(2001) Structural and functional variability within the canopy and its relevance for carbon gain and stress avoidance. Acta Oecologica 22, 129–138.
| Crossref | GoogleScholarGoogle Scholar |
White JW, Montes RC
(2005) Variation in parameters related to leaf thickness in common bean (Phaseolus vulgaris L.). Field Crops Research 91, 7–21.
| Crossref | GoogleScholarGoogle Scholar |
Xu ZJ,
Chen WF,
Zhang WZ,
Zhou SQ,
Liu LX,
Zhang LB, Yang SR
(2004) New plant type breeding for super-high yielding northern Japonica rice. Scientia Agricultura Sinica 37, 1521–1526.
Yuan LP
(1997) Hybrid rice breeding for super high yield. Hybrid Rice 12, 4–6.
