Characteristics of Dry Matter Production for Super Rice Cultivars in Fujian Province

HE Hua-rong; FANG Xian-tao; XIE Zu-qin; YANG Hui-jie

doi:10.19303/j.issn.1008-0384.2015.04.001

Volume 30 Issue 4

Apr. 2015

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Article Navigation > Fujian Journal of Agricultural Sciences > 2015 > 30(4): 313-317

HE Hua-rong, FANG Xian-tao, XIE Zu-qin, YANG Hui-jie. Characteristics of Dry Matter Production for Super Rice Cultivars in Fujian Province[J]. Fujian Journal of Agricultural Sciences, 2015, 30(4): 313-317. doi: 10.19303/j.issn.1008-0384.2015.04.001

Citation:

HE Hua-rong, FANG Xian-tao, XIE Zu-qin, YANG Hui-jie. Characteristics of Dry Matter Production for Super Rice Cultivars in Fujian Province[J]. Fujian Journal of Agricultural Sciences, 2015, 30(4): 313-317. doi: 10.19303/j.issn.1008-0384.2015.04.001

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Characteristics of Dry Matter Production for Super Rice Cultivars in Fujian Province

doi: 10.19303/j.issn.1008-0384.2015.04.001

Rice Research Institute of Fujian Academy of Agricultural Sciences

Received Date: 2015-01-15
Publish Date: 2015-04-18

Abstract

Abstract

Physiological characteristics of four super rice cultivars were analyzed including dry matter accumulation,allocation and transportation as well as crop growth rate.The results showed that leaf area index(LAI)of super rice cultivars exhibited dynamic change as parabolic curve and peaked at full heading stage.Crop growth rate(CGR)of each super rice cultivar was the highest during full heading stage and milky stage.CGR of four super rice cultivars were higher than that of the control during the entire growth stage,indicating stronger photosynthetic production capacity of super rice.There was no significant relationship between grain yield of super rice cultivars and dry matter accumulation at the early developing stage(before stem elongation),but dry matter accumulation at mid and late developing stages(from stem elongation to ripening stage),indicating there was higher dry matter production capacity of super rice at mid and late developing stage.Furthermore,average output percentage and apparent transformation rates of stem and leaf dry matter for super rice cultivars were all lower than that of the control.Compared to the control,the significant yield of super rice cultivar depends on higher dry matter production and stronger photosynthesis of leaves at mid and late developing stages.
- super rice,
- leaf area index,
- dry matter production,
- allocation

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References(11)

References

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