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Effect of Different Nutrient Concentration on Germination and Growth of Paspalum notatum(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年17期
Page:
64-67
Research Field:
Publishing date:

Info

Title:
Effect of Different Nutrient Concentration on Germination and Growth of Paspalum notatum
Author(s):
ZHAO Ben-shu1; SONG Yuan-yuan1; LI Shao-cai1; SUN Hai-long2; LONG Feng1
1.College of Life Science,Sichuan University,Chengdu,Sichuan 610064；
2.State Key Laboratory of Hydraulics and Water Resources,Sichuan University,Chengdu,Sichuan 610064
Keywords:
Paspalum notatum; nutrient concentration; germination; growth
PACS:
s543+.9
DOI:
-
Abstract:
Taking Paspalum notatum as the test material,the effect of eight nutrient concentration gradients which were 10%,30%,50%,70%,100%,150%,200% and 300% on germination rate,height,tillering and dry matter accumulation of Paspalum notatum were studied,in order to get the germination and growth of Paspalum notatum in different nutrient concentrations treatment.The results showed that the germination rates of Paspalum notatum were negatively correlated with nutrient concentrations.But in a certain concentration range,the nutrient concentration had little effect on germination of Paspalum notatum.At 60 days after seedling,the plants height of all concentrations treatment were the hightest,but the height had no significant difference with the nutrient concentrations.The tillering number increased at first,then tended to decrease and be stable with the increasing of nutrient concentration.And the minimum tillering numbers was the treatment of 10% nutrient concentration,the maximum tillering number was the treatment of 100% nutrient concentration.The dry matter accumulations increased and then they gradually reduced with time.The optimum nutrient concentrations was between 70%~100%.The growth would be stunted by low concentrations,and the seed germination and growth would be affected by high concentrations.

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Last Update: 2014-09-25