干旱区研究

Arid Zone Research >

2014 , Vol. 31 >Issue 4: 744 - 749

DOI: https://doi.org/10.13866/j.azr.2014.04.24

Plants and Plant Physiology

Effects of Soil-covering Thickness on Emergence Rate and Seedling Growth of Quercus wutaishanica

  • WANG Juan-ting ,
  • WANG Nai-jiang ,
  • DANG Peng ,
  • ZHANG Ren-fan ,
  • XI Shi-hong
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  • 1. Key Laboratory of Environment and Ecology in West China, Ministry of Education, College of Forestry, Northwest A & F University, Yangling 712100, Shaanxi, China;
    2. Hancheng Administrative Station of Water and Soil Conservancy, Hancheng 715400, Shaanxi, China

Received date: 2013-12-31

  Revised date: 2014-01-14

  Online published: 2014-08-11

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Abstract

In this study, the effects of soil-covering thickness and sowing time on the emergence rate and seedling growth of Quercus wutaishanica, a kind of natural secondary forest on the Loess Plateau, were researched. The results were as follows: ① Soil-covering thickness affected significantly the emergence rate (P<0.05), the emergence rate was increased with the increase of soil-covering thickness and reached its maximum value when the soil-covering thickness was increased to 10 cm. The effect of soil-covering thickness on the seedling growth was not significant; ② The effect of sowing time on the emergence rate was significant when the soil-covering thickness was 0-3 cm (P<0.05). The emergence rate that the sowing time was on November 1 was higher than that on December 10 because of the temperature difference, and the emergence rates that the sowing time was on these two days were (11.9±1.2)%-(53.2±20.7)% and (1.5 %±0.8)%-(42.0±0.7)% respectively; the effect of sowing time on the seedling growth was not significant but the leaf area (P<0.05). Therefore, it could be concluded that soil-covering was advantageous for improving the emergence rate of Q. wutaishanica, but its effect on the seedling growth was not significant.

Key words： Quercus wutaishanica; seed; soil-covering thickness; emergence rate; seedling growth; the Loess Plateau

Cite this article

WANG Juan-ting , WANG Nai-jiang , DANG Peng , ZHANG Ren-fan , XI Shi-hong . Effects of Soil-covering Thickness on Emergence Rate and Seedling Growth of Quercus wutaishanica[J]. Arid Zone Research, 2014 , 31(4) : 744 -749 . DOI: 10.13866/j.azr.2014.04.24

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