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. 2014:2014:707095.
doi: 10.1155/2014/707095. Epub 2014 Jun 22.

Photosynthetic and canopy characteristics of different varieties at the early elongation stage and their relationships with the cane yield in sugarcane

Jun Luo  1 , Yong-Bao Pan  2 , Liping Xu  1 , Yuye Zhang  1 , Hua Zhang  1 , Rukai Chen  1 , Youxiong Que  1
Affiliations

Photosynthetic and canopy characteristics of different varieties at the early elongation stage and their relationships with the cane yield in sugarcane

Jun Luo et al. ScientificWorldJournal. 2014.

Abstract

During sugarcane growth, the Early Elongation stage is critical to cane yield formation. In this study, parameters of 17 sugarcane varieties were determined at the Early Elongation stage using CI-301 photosynthesis measuring system and CI-100 digital plant canopy imager. The data analysis showed highly significant differences in leaf area index (LAI), mean foliage inclination angle (MFIA), transmission coefficient for diffused light penetration (TD), transmission coefficient for solar beam radiation penetration (TR), leaf distribution (LD), net photosynthetic rate (PN), transpiration rate (E), and stomatal conductance (GS) among sugarcane varieties. Based on the photosynthetic or canopy parameters, the 17 sugarcane varieties were classified into four categories. Through the factor analysis, nine parameters were represented by three principal factors, of which the cumulative rate of variance contributions reached 85.77%. A regression for sugarcane yield, with relative error of yield fitting less than 0.05, was successfully established: sugarcane yield = -27.19 - 1.69 × PN + 0.17 × E + 90.43 × LAI - 408.81 × LD + 0.0015 × NSH + 101.38 × D (R(2) = 0.928**). This study helps provide a theoretical basis and technical guidance for the screening of new sugarcane varieties with high net photosynthetic rate and ideal canopy structure.

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Figures

Figure 1
Figure 1
A clustering dendrogram based on photosynthetic parameters of 17 sugarcane varieties.
Figure 2
Figure 2
A clustering dendrogram based on canopy parameters of 17 sugarcane varieties.
See this image and copyright information in PMC

References

    1. Wang KR, Li SK, Song GJ, Chen G, Cao SZ. Studies on cultivated physiological indexes for high-yielding cotton in Xinjiang. Scientia Agricultura Sinica. 2002;35(6):638–644.
    1. Zhao M, Li JG, Zhang B, Dong ZQ, Wang MY. The compensatory mechanism in exploring crop production potential. Acta Agronomica Sinica. 2006;32(10):1566–1573.
    1. Peng SB, Khush GS, Virk P, Tang Q, Zou Y. Progress in ideotype breeding to increase rice yield potential. Field Crops Research. 2008;108(1):32–38.
    1. Hua S, Yuan S, Shamsi IH, et al. A comparison of three isolines of cotton diff ering in fiber color for yield, quality, and photosynthesis. Crop Science. 2009;49(3):983–989.
    1. Feng GY, Luo HH, Yao YD, et al. Spatial distribution of leaf and boll in relation to canopy photosynthesis of super high-yielding cotton in xinjiang. Scientia Agricultura Sinica. 2012;45(13):2607–2614.

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