|Table of Contents|

Effect of Fertilization on Photosynthetic Characteristics,Yield of Sugar Beet at Later Stage in the Cold and Arid Areas of North China(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年01期
Page:
174-178
Research Field:
Publishing date:

Info

Title:
Effect of Fertilization on Photosynthetic Characteristics,Yield of Sugar Beet at Later Stage in the Cold and Arid Areas of North China
Author(s):
WU Dong-xia; LIU Yu-hua; ZHANG Li-feng; ZHANG Jun-jun; ZHANG Li
1.Zhangbei Agricultural Resource and Ecological Environment Key Field Research Station,Ministry of Agriculture of China,Zhangbei,Hebei 076450；
2.College of Agronomy,Agricultural University of Hebei,Baoding,Hebei 071000
Keywords:
net photosynthetic rate; stomatal limitation analysis; light response curve; sugar beet
PACS:
S 566.3
DOI:
-
Abstract:
Taking sugar beet in the cold and arid areas of north China as material,the effect of fertilization on photosynthetic characteristics,especially yield and quality of sugar beet were studied,using Li-6400 photosynthetic measurement system to monitor the photosynthetic physiological parameters change and the effects of fertilization on yield and quality of sugar beet during sugar accumulation and harvest stages.The results showed compared with no fertilization that the leaf daily accumulation of photosynthesis (PD),the daily accumulation of transpiration (TD) and the average daily water use efficiency （WUED） of sugar beet were significantly increased by 23.8%，18.1%，4.7% of fertilization,the midday photosynthetic adversity stress of sugar beet was significantly lowered；Compared with no fertilization,the values of light saturation point (LSP),light compensation point (LCP),apparent quantum efficiency (AQY) increased by 30.0%,42.8%,13.9% of fertilization,and the ability of PAR consumption were enhanced；The biological yield and sugar yield of fertilization treatment were increased by 29.4% and 21.5%.Results showed that Fertilization was the key technology for increased resistance,maintain high photosynthetic efficiency and enhance the photosynthetic productive potential of sugar beet in cold and arid regions of north China.

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Last Update: 2014-08-08