|Table of Contents|

Observation of Soybean Ultrastructure with Different Phosphorous Treatments(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2012年02期
Page:
242-246
Research Field:
Publishing date:

Info

Title:
Observation of Soybean Ultrastructure with Different Phosphorous Treatments
Author(s):
WANG Jin-sheng1WU Jun-jiang1MA Feng-ming2LIN Wei-gang1ZHONG Peng1DONG?De-jiang1
1.Soybean Research Institute of Heilongjiang Academy of Agricultural Sciences, Harbin 150086;
2.College of Agriculture, Northeast Agricultural University, Harbin 150030, Heilongjiang, China
Keywords:
SoybeanPhosphorus efficiencyUltra microscopic structure
PACS:
S565.1
DOI:
10.3969/j.issn.1000-9841.2012.02.016
Abstract:
Eight soybean cultivars with different P efficiency were cultivated until flowering in 3 P levels(0, 640 and 960 mg·kg-1) and then took the mid-leaf of the second ternate for ultrastructure observation. The result showed that with the increase of P amount, the stoma number, size and aperture in unit leaf area of high or low P efficiency cultivars were increased. Under P0 control, the stoma size of high P efficiency cultivar was smaller than low P ones, but the aperture was bigger than low P cultivars. The chloroplast number in single mesophyll cell of high P efficiency cultivars in low and middle P levels were significantly higher than low P efficiency ones, but opposite in high P treatment. With the increase of P amount, the chloroplast number was increased with regular shape. However, a large amount of P fertilizer may be harmful to the chloroplast of high P efficiency genotypes and destroyed chloroplast shape seriously. In conclusion, scientifically P utilization could improve the ultra microscopic structure of stomata and chloroplast, finally increase the efficiency of photosynthesis.

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Last Update: 2014-08-15