Growth stage and plant sex with chemical compounds of industrial hemp stalks

WU Ning; XIAO Rui; XU Yanping; DU Guanben; LI Xiaoping; SUN Fei

doi:10.11833/j.issn.2095-0756.2015.05.018

Volume 32 Issue 5

Sep. 2015

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WU Ning, XIAO Rui, XU Yanping, DU Guanben, LI Xiaoping, SUN Fei. Growth stage and plant sex with chemical compounds of industrial hemp stalks[J]. Journal of Zhejiang A&F University, 2015, 32(5): 776-782. doi: 10.11833/j.issn.2095-0756.2015.05.018

Citation:

WU Ning, XIAO Rui, XU Yanping, DU Guanben, LI Xiaoping, SUN Fei. Growth stage and plant sex with chemical compounds of industrial hemp stalks[J]. Journal of Zhejiang A&F University, 2015, 32(5): 776-782. doi: 10.11833/j.issn.2095-0756.2015.05.018

Growth stage and plant sex with chemical compounds of industrial hemp stalks

doi: 10.11833/j.issn.2095-0756.2015.05.018

WU Ning^1,2,
XIAO Rui^1,2,
XU Yanping³,
DU Guanben¹,
LI Xiaoping^{1,2
,
,},
SUN Fei^1,2

1.
Yunnan Key Laboratory of Wood Adhesives and Glue Products, Southwest Forestry University, Kunming 650224, Yunnan, China;
2.
College of Materials Engineering, Southwest Forestry University, Kunming 650224, Yunnan, China;
3.
Industrial Crop Research Institute, Yunnan Academy, Agricultural Sciences, Kunming 650205, Yunnan, China

Funds:

国家自然科学基金资助项目（31200437）;国家麻类产业技术体系建设项目资助（CARS-19-E05）;国家林业局林业公益性行业科研专项（201404515）;云南省教育厅重点资助项目（2013Z085）

Received Date: 2014-12-13
Rev Recd Date: 2015-01-13
Publish Date: 2015-10-20

Abstract

Studying the influence of growth stage and plant sex on chemical compounds of industrial hemp stalks could provide a reference for renewable fiber preparation and new energy. The cellulose, hemicellulose, and lignin contents of industrial hemp stalks were tested by the high performance liquid chromatography （HPLC） and China chemical compounds analysis standard for paper making raw materials （GB/T 2677－1993）. Results showed that growth stage had a significant effect （P＜0.05） on cellulose content and lignin content of industrial hemp stalks but not on hemicellulose content. Meanwhile, plant gender significantly affected （P＜0.05） cellulose content and hemicellulose content of industrial hemp stalks but not lignin content. For the entire growth period of hemp stalk, the range of cellulose content was from 380.8 to 525.0 gkg－1, of hemicellulose content was from 174.2 to 275.5 gkg－1, and of lignin content was from 109.8 to 235.8 gkg－1. As time increased, the mass fractions of cellulose and hemicellulose increased first and then decreased （The P value of cellulose was P =0.015 2 and hemicelluloses was P=0.945 9 with SAS software）; whereas the mass fraction of lignin increased steadily （P＜0.000 1 with SAS software）. Also, synthesis of cellulose and hemicellulose was earlier than lignin. Differences between male and female gender became apparent by the 77th day of growth with cellulose （P =0.004 0 with SAS software） and lignin （P =0.123 7 with SAS software） contents of female plants being higher than male plants, and the hemicellulose content lower （P =0.001 0 with SAS software）. Reasons for differences in the chemical compounds between male and female plants will require further study.［Ch, 6 fig. 1 tab. 21 ref.］
- botany,
- growth stage,
- plant gender,
- industrial hemp stalk,
- cellulose,
- hemicellulose,
- lignin

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Growth stage and plant sex with chemical compounds of industrial hemp stalks

1. Yunnan Key Laboratory of Wood Adhesives and Glue Products, Southwest Forestry University, Kunming 650224, Yunnan, China;

2. College of Materials Engineering, Southwest Forestry University, Kunming 650224, Yunnan, China;

3. Industrial Crop Research Institute, Yunnan Academy, Agricultural Sciences, Kunming 650205, Yunnan, China

Funds:

Received Date: 2014-12-13

Rev Recd Date: 2015-01-13

Publish Date: 2015-10-20

Key words:

Abstract: Studying the influence of growth stage and plant sex on chemical compounds of industrial hemp stalks could provide a reference for renewable fiber preparation and new energy. The cellulose, hemicellulose, and lignin contents of industrial hemp stalks were tested by the high performance liquid chromatography （HPLC） and China chemical compounds analysis standard for paper making raw materials （GB/T 2677－1993）. Results showed that growth stage had a significant effect （P＜0.05） on cellulose content and lignin content of industrial hemp stalks but not on hemicellulose content. Meanwhile, plant gender significantly affected （P＜0.05） cellulose content and hemicellulose content of industrial hemp stalks but not lignin content. For the entire growth period of hemp stalk, the range of cellulose content was from 380.8 to 525.0 gkg－1, of hemicellulose content was from 174.2 to 275.5 gkg－1, and of lignin content was from 109.8 to 235.8 gkg－1. As time increased, the mass fractions of cellulose and hemicellulose increased first and then decreased （The P value of cellulose was P =0.015 2 and hemicelluloses was P=0.945 9 with SAS software）; whereas the mass fraction of lignin increased steadily （P＜0.000 1 with SAS software）. Also, synthesis of cellulose and hemicellulose was earlier than lignin. Differences between male and female gender became apparent by the 77th day of growth with cellulose （P =0.004 0 with SAS software） and lignin （P =0.123 7 with SAS software） contents of female plants being higher than male plants, and the hemicellulose content lower （P =0.001 0 with SAS software）. Reasons for differences in the chemical compounds between male and female plants will require further study.［Ch, 6 fig. 1 tab. 21 ref.］

Growth stage and plant sex with chemical compounds of industrial hemp stalks

doi: 10.11833/j.issn.2095-0756.2015.05.018

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Related

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