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Scientia Silvae Sinicae ›› 2014, Vol. 50 ›› Issue (6): 90-97.doi: 10.11707/j.1001-7488.20140612

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Comparison of the Accumulation Ability of Photosynthetic Product between Two Types of Bearing Shoots of Southern China Fresh-Eat Jujube

Wang Sen, Yan Chao   

  1. College of Forestry, Central South University of Forestry and Technology Changsha 410004
  • Received:2014-01-18 Revised:2014-04-27 Online:2014-06-25 Published:2014-07-07

Abstract:

In this paper, a southern fresh jujube, Zhongqiusucui, used in a comparative study on the growth period, leaf area and photosynthetic efficiency of lignified bearing shoot and non-lignified bearing shoot. The results showed that: 1) The growth period of lignified bearing shoot was longer than that of non-lignified bearing shoot. 2) The leaf area of lignified bearing shoot was significantly larger than that of non-lignified bearing shoot. 3) The net photosynthetic rate of lignified persistent bearing was higher than that of non-lignified bearing shoot. Under the strong light condition, lignified bearing shoot still maintained high photosynthetic rate. 4) Anatomy showed that the cell density of the palisade tissues of lignified bearing shoot was greater, and the conducting tissue of stem was stronger than that of non-lignified bearing shoot. 5) The chlorophyll a/b ratio of lignified bearing shoot was significantly greater than that of non-lignified bearing shoot. By comprehensive analysis on the comparison between lignified bearing shoot and non-lignified bearing shoot, the lignified bearing shoot had advantages in growth period, leaf area and photosynthetic efficiency, all of which indicate the lignified bearing shoot should have higher accumulation ability of photosynthetic product.

Key words: jujube, bearing shoot, tissue anatomical structure, photosynthetic efficiency

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