Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-12-05T03:08:46.798Z Has data issue: false hasContentIssue false
  • English
  • Français

Effects of late-autumn fertilizer dressing on accumulation of photosynthates in tea (Camellia sinensis) and its contribution to spring tea quality

Published online by Cambridge University Press:  27 March 2009

Y. Shen ,
X. Yang  and
X. Xie
Y. Shen
Affiliation:
Institute of Nuclear-Agricultural Sciences
X. Yang
Affiliation:
Department of Tea Science, Zhejiang Agricultural University, Hangzhou 310029, China
X. Xie
Affiliation:
Institute of Nuclear-Agricultural Sciences
Get access Rights & Permissions [Opens in a new window]

Summary

Two-year-old tea bushes were given NPK fertilizer on 12 November 1986 and 14CO2 on 22–23 December 1986 and 9–10 January 1987. Late-autumn fertilizer dressing stimulated photosynthate accumulation in the whole bush, especially in overwintering leaves and roots. Large amounts of photosynthates in overwintering leaves provide the nutrition required for early spring budding. Lateautumn dressing also accelerated the transport of photosynthates from leaves to roots in winter, where photosynthates, with absorbed nitrogen, synthesized more animo acids, especially theanine and phenylalanine. The re-use of photosynthates stored in the roots of the dressed bushes during shoot growth the following spring was also facilitated by late-autumn dressing. The contents of amino acids and caffeine in the shoots of dressed bushes were much higher than those in the control, whereas the content of polyphenol was lower than in the control. The results indicate that late-autumn dressing improves the quality of spring green tea.

Type
Crops and Soils
Information
The Journal of Agricultural Science , Volume 115 , Issue 2 , October 1990 , pp. 233 - 238
Copyright
Copyright © Cambridge University Press 1990

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Akiyasu, N. (1979). Metabolism of nitrogen compounds in tea plants. Tea 6, 10–14 [in Japanese].Google Scholar
Hakamata, K. & Sakai, S. (1980). Translocation and redistribution of 14C-photosynthates assimilated in winter leaves in the young tea plant. Research on Tea Science and Technology 58, 11–20 [in Japanese].Google Scholar
Konishi, S., Ota, M. & Iwase, F. (1978). Studies on the absorption and utilization of nitrogen in tea plants. I. Contribution of nitrogen absorbed at different stages of growth to new shoots of tea plants. Journal of the Science of Soil and Manure 49, 221–225 [in Japanese].Google Scholar
Manivel, L. (1980). Role of maintenance foliage. Two and a Bud 27, 52–55.Google Scholar
Mu, W. (1984). Statistics of Agriculture. Shanghai: Science & Technology Press.Google Scholar
Nakayama, A. (1972). Recent trends and problems of studies on the photosynthesis of tea plant. Tea Research Journal 49, 221–225 [in Japanese].Google Scholar
Shatilov, L. S. & Akholediani, N. S. (1980). Photosynthetical productivity of different tea varieties. Agrobiology 15, 534–538 [in Russian].Google Scholar
Wu, X. (1984). Improvement of dressing method and increase of tea quality. Fujian Tea 2, 5–9 [in Chinese].Google Scholar
Wu, X. & Ru, G. (1986). Uptake and utilization of nitrogen fertilizer by tea plant. Journal of Tea Science 6, 15–24 [in Chinese].Google Scholar
Yang, X. & Mao, Z. (1985). Studies on carbon and nitrogen metabolism and culture techniques. Tea 1, 5–10 [in Chinese].Google Scholar