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| Effect of Different Grinding Degrees of Coconut Coir Substrate on Growth and Quality of Cucumber Plug Seedlings |
| XIANG Zong-guo，ZHAO Rui*，CHEN Jun-qin |
| College of Horticulture，Shenyang Agricultural University，Shenyang 110161，Liaoning，China |
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Abstract Three treatments with different grinding degrees of coconut coir substrate including item 5，10，15，were designed．The ratio between coconut coir and vermiculite was 3 V∶1 V．The physical and chemical properties of unit weight，total porosity，water holding pores，pH，conductivities and different physiological and biochemical indexes were investigated by comparing with the control of peatmoss∶vermiculite = 3 V∶1 V，so as to screen out an optimal formula．The results showed that among 3 different grinding degrees，treatment of item 10 was in favor of cucumber growth．The plant had reached an ideal growth state： cucumber seedling index，root shoot ratio，dry weight，chlorophyll content of seedling，net photosynthetic rate were all better than the other 2 treatments．
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Received: 14 July 2011
Published: 28 December 2011
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