A new well-behaved diameter distribution function for unthinned Chinese fir (Cunninghamia lanceolata) plantations in southern China

2011 ◽  
Author(s):  
Aiguo Duan ◽  
Jianguo Zhang ◽  
Shuzhen Tong ◽  
Caiyun He
Keyword(s):  
Distribution Function ◽  
Southern China ◽  
Chinese Fir ◽  
Cunninghamia Lanceolata ◽  
Diameter Distribution

scholarly journals Shoot Blight on Chinese Fir (Cunninghamia lanceolata) is Caused by Bipolaris oryzae

Plant Disease ◽  
2018 ◽  
Vol 102 (3) ◽  
pp. 500-506 ◽  
Author(s):  
Lin Huang ◽  
Ya-Nan Zhu ◽  
Ji-Yun Yang ◽  
De-Wei Li ◽  
Yong Li ◽  
...  
Keyword(s):  
Southern China ◽  
Phylogenetic Analyses ◽  
Large Subunit ◽  
Elongation Factor ◽  
Morphological Characteristics ◽  
Chinese Fir ◽  
Cunninghamia Lanceolata ◽  
Timber Species ◽  
Bipolaris Oryzae ◽  
Shoot Blight

Chinese fir (Cunninghamia lanceolata) is a significant timber species that has been broadly cultivated in southern China. A shoot blight disease on Chinese fir seedlings was discovered in Fujian, China and a fungus was then consistently associated with the symptoms. This fungus was determined to be causing this disease, among others by fulfilling Koch’s postulates. Based on morphological characteristics and multilocus phylogenetic analyses with the sequences of the internal transcribed spacer, partial glyceraldehyde-3-phosphate dehydrogenase gene, partial translation elongation factor 1-α gene, and partial 28S large subunit ribosomal RNA gene, the fungus was identified as Bipolaris oryzae. These characteristics and phylogenetic analyses clearly support that this pathogen is different from B. sacchari, which was, until now, considered to be the causal agent of a similar blight on Chinese fir in Guangdong, China. The fungus was also shown to be strongly pathogenic to rice, one of the most susceptible hosts to B. oryzae. Crop rotation involving rice is often carried out with Chinese fir in southern China, a practice that most likely increases the risk of shoot blight on C. lanceolata. To our knowledge, shoot blight caused by B. oryzae is reported for the first time in a gymnosperm species.

scholarly journals Stand Transpiration Estimates from Recalibrated Parameters for the Granier Equation in a Chinese Fir (Cunninghamia lanceolata) Plantation in Southern China

Forests ◽  
2018 ◽  
Vol 9 (4) ◽  
pp. 162 ◽  
Author(s):  
Shuai Ouyang ◽  
Kaiyu Xiao ◽  
Zhonghui Zhao ◽  
Wenhua Xiang ◽  
Chuanhong Xu ◽  
...  
Keyword(s):  
Southern China ◽  
Chinese Fir ◽  
Cunninghamia Lanceolata ◽  
Stand Transpiration

Several Important Diseases of Chinese Fir Plantations and their Control Measures

2011 ◽  
Vol 480-481 ◽  
pp. 727-732
Author(s):  
He Li ◽  
Guo Ying Zhou
Keyword(s):  
Disease Control ◽  
Southern China ◽  
Chinese Fir ◽  
Control Measures ◽  
Cunninghamia Lanceolata ◽  
Timber Species ◽  
Healthy Development ◽  
Fast Growing ◽  
Important Basis ◽  
Chinese Fir Plantation

Chinese fir (Cunninghamia Lanceolata) is a unique fast growing merchantable timber species in China with good materials, and is a major fast growing timber species in provinces of southern China. With the increase in Chinese fir plantation areas and the improvement in the degree of pure forests, the diseases of Chinese fir are increasing and their damages are getting worse, which have caused great losses and affected the sustainable, rapid and healthy development of forestry in China. This article gives a description of pathogenies, symptoms and occurrence regularities of four important diseases of Chinese fir, including Glomerella cingulata, Pestalotia Sp., Pseudomonas cunninghamiae and Chlorosis, and puts forward the corresponding control measures of these diseases, which provides an important basis for disease control of Chinese fir plantations.

Age-dependent microRNAs in regulation of vascular cambium activity in Chinese fir (Cunninghamia lanceolata)

Trees ◽  
2021 ◽  
Author(s):  
Guijun Liu ◽  
Xian Xue ◽  
Jinling Feng ◽  
Dechang Cao ◽  
Jinxing Lin ◽  
...  
Keyword(s):  
Chinese Fir ◽  
Cunninghamia Lanceolata ◽  
Vascular Cambium ◽  
Age Dependent ◽  
Cambium Activity

Genetic parameters and genotype–environment interactions of Chinese fir (Cunninghamia lanceolata) in Fujian Province

2014 ◽  
Vol 44 (6) ◽  
pp. 582-592 ◽  
Author(s):  
Liming Bian ◽  
Jisen Shi ◽  
Renhua Zheng ◽  
Jinhui Chen ◽  
Harry X. Wu
Keyword(s):  
Genetic Parameters ◽  
Breeding Strategy ◽  
Chinese Fir ◽  
Breeding Program ◽  
Cunninghamia Lanceolata ◽  
Environment Interaction ◽  
Fujian Province ◽  
The Third ◽  
Genotype Environment Interaction ◽  
Sib Families

Chinese fir (Cunninghamia lanceolata (Lamb.) Hook) is the most commercially important conifer in China, and the Nanjing Forestry University – Fujian Province Chinese fir Cooperation (NJFU – Fujian Cooperation) breeding program has advanced it into the third cycle of selection and breeding. In this paper, we estimated genetic parameters from four sites for 80 half-sib families and summarized previous estimates of genetic parameters in Chinese fir with an objective to propose optimal breeding strategy. Heritability averaged 0.20 and 0.14 for height and diameter at breast height (DBH), respectively, for the four sites. A significant genotype–environment interaction (G × E) for growth was also observed among the four sites, with the greatest interactions between a marginal site and the three central sites in the Fujian Province Chinese fir plantation region. The average estimated type-B genetic correlation between the marginal site and the three central sites was 0.08 for height and –0.09 for DBH. However, the highly productive families were among the most stable across the four sites. The results from this study in combination with summarized genetic parameters from literature were used to discuss and propose an optimal breeding strategy for the third generation of the breeding program for Chinese firs in Fujian Province.

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