Growth and development of the <EM>Carya cathayensis</EM> nut

XIE Hong-en; HUANG You-jun; XUE Xia-ming; XU Chang-shou; LIU Li

Volume 25 Issue 4

Aug. 2008

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XIE Hong-en, HUANG You-jun, XUE Xia-ming, XU Chang-shou, LIU Li. Growth and development of the Carya cathayensis nut[J]. Journal of Zhejiang A&F University, 2008, 25(4): 527-531.

Citation:

XIE Hong-en, HUANG You-jun, XUE Xia-ming, XU Chang-shou, LIU Li. Growth and development of the Carya cathayensis nut[J]. Journal of Zhejiang A&F University, 2008, 25(4): 527-531.

Growth and development of the Carya cathayensis nut

1.
The Key Laboratory for Modern Silvicultural Technology of Zhejiang Province，Zhejiang Forestry College，Lin’an 311300，Zhejiang，China;
2.
Maxiao Forest Station of Lin’an City，Lin’an 311323，Zhejiang，China

More Information

Corresponding author: LIU Li
Publish Date: 2008-08-20

Abstract

Carya cathayensis is famous because its nut has rich nutrition，especially in oil and protein. We explore the nut’s growth process in order to obtain the law of oil accumulation. From May to September in 2006，we picked 150－300 nuts from 6 sample trees each 7－10 days. Then，we determine its diameter，fresh and dry weight，the weight rate of kernel to shell，crude protein，soluble sugar，and crude fat. Results showed that development of the Carya cathayensis nut throughout its growing season is divided into two distinct phases. Phase Ⅰ occurred from early May to early August. During this phase the C. cathayensis nut enlarged with the fastest growth in June and July and came to full size. Phase Ⅱ occurred from early August until harvest in early September，wherein the kernel developed and filled out with nutrients accumulating and transforming. In this phase，significant negative correlations were found between crude protein and crude fat （r =－0.991 3，P＜0.01） and between soluble sugar and crude fat （r = －0.956 5，P＜0.01）with protein content decreasing from 117.4 to 93.6 mg·g－1，soluble sugar decreasing from 56.1 to 19.67 mg·g－1，and crude fat continuously increasing from 33.9% to 69.0%. So we should provide adequate nutrition to maintain the vitality of leaves in June and July，to postpone harvesting is beneficial to enhance the kernel’s output and the fat content．［Ch，1 fig. 3 tab. 21 ref.］
- botany,
- Carya cathayensis,
- fruit maturation,
- crude protein,
- sugar,
- crude fat

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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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Proportional views

Growth and development of the Carya cathayensis nut

1. The Key Laboratory for Modern Silvicultural Technology of Zhejiang Province，Zhejiang Forestry College，Lin’an 311300，Zhejiang，China;

2. Maxiao Forest Station of Lin’an City，Lin’an 311323，Zhejiang，China

Corresponding author: LIU Li

Publish Date: 2008-08-20

Key words:

Abstract: Carya cathayensis is famous because its nut has rich nutrition，especially in oil and protein. We explore the nut’s growth process in order to obtain the law of oil accumulation. From May to September in 2006，we picked 150－300 nuts from 6 sample trees each 7－10 days. Then，we determine its diameter，fresh and dry weight，the weight rate of kernel to shell，crude protein，soluble sugar，and crude fat. Results showed that development of the Carya cathayensis nut throughout its growing season is divided into two distinct phases. Phase Ⅰ occurred from early May to early August. During this phase the C. cathayensis nut enlarged with the fastest growth in June and July and came to full size. Phase Ⅱ occurred from early August until harvest in early September，wherein the kernel developed and filled out with nutrients accumulating and transforming. In this phase，significant negative correlations were found between crude protein and crude fat （r =－0.991 3，P＜0.01） and between soluble sugar and crude fat （r = －0.956 5，P＜0.01）with protein content decreasing from 117.4 to 93.6 mg·g－1，soluble sugar decreasing from 56.1 to 19.67 mg·g－1，and crude fat continuously increasing from 33.9% to 69.0%. So we should provide adequate nutrition to maintain the vitality of leaves in June and July，to postpone harvesting is beneficial to enhance the kernel’s output and the fat content．［Ch，1 fig. 3 tab. 21 ref.］

Growth and development of the Carya cathayensis nut

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References

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通讯作者: 陈斌, bchen63@163.com

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Growth and development of the Carya cathayensis nut

1. The Key Laboratory for Modern Silvicultural Technology of Zhejiang Province，Zhejiang Forestry College，Lin’an 311300，Zhejiang，China;

2. Maxiao Forest Station of Lin’an City，Lin’an 311323，Zhejiang，China

Corresponding author: LIU Li

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Growth and development of the Carya cathayensis nut

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通讯作者: 陈斌, bchen63@163.com

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Growth and development of the Carya cathayensis nut

1. The Key Laboratory for Modern Silvicultural Technology of Zhejiang Province，Zhejiang Forestry College，Lin’an 311300，Zhejiang，China; 2. Maxiao Forest Station of Lin’an City，Lin’an 311323，Zhejiang，China

Corresponding author: LIU Li

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1. The Key Laboratory for Modern Silvicultural Technology of Zhejiang Province，Zhejiang Forestry College，Lin’an 311300，Zhejiang，China;

2. Maxiao Forest Station of Lin’an City，Lin’an 311323，Zhejiang，China