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Effect of Different Photoperiod on the Growth andStarch Accumulation of Duckweed(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2017年22
Page:
50-54
Research Field:
Publishing date:

Info

Title:
Effect of Different Photoperiod on the Growth andStarch Accumulation of Duckweed
Author(s):
CHEN Xiaoyi; YANG Qianye; ZHAO Qi
School of Pharmacy and Biological Engineering,Chengdu University,Chengdu,Sichuan 610106
Keywords:
duckweed; starch; biomass; photoperiod
PACS:
-
DOI:
10.11937/bfyy.20171398
Abstract:
New energy plant duckweed was used as material,the effects of four different photoperiod treatments on the growth and starch accumulation of duckweed were studied.Four different photoperiod conditions were 12 h light+12 h darkness(L12/D12);16 h light+8 h darkness(L16/D8);20 h light+4 h darkness (L20/D4);24 h light+0 h darkness (L24/D0).The results showed that extending photoperiod could accelerate biomass yield of duckweed,the biomass was 2.93,3.32,3.70,4.39 g,respectively;and increasing the starch accumulation of duckweed,the starch percentage was 7.00%,8.64%,14.25% and 19.75%,respectively.Moreover,different photoperiod could affect chlorophyll content and net photosynthetic rate;the activities of key enzymes AGPase,SSS,α and β-amylase,which involved in starch metabolism were also changed.Based on above analysis,the best optimal photoperiods for biomass and starch accumulation of duckweed was full light L24/D0.

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Last Update: 2017-11-22