Please wait a minute...
Frontiers of Agriculture in China

ISSN 1673-7334

ISSN 1673-744X(Online)

CN 11-5729/S

Front Agric Chin    2009, Vol. 3 Issue (1) : 75-77     DOI: 10.1007/s11703-008-0062-y
Research Article |
The main factors causing “imperfect shell development” (ISD) in thin-shelled walnut
Baoguo LI(), Suping GUO, Guohui QI
Forestry College, Agricultural University of Hebei
Download: PDF(66 KB)   HTML
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks
Abstract  

Effects of solar radiation, rainfall and cultivars on “imperfect shell development” (ISD) of the thin-shelled walnut were studied by means of field investigation and weather data comparison. The results showed that cultivars were the main factor causing the ISD of the thin-shelled walnut. Among the cultivars, Shangsong 6 was the most sensitive one, whose percentage of imperfect shell attained 67.3%, followed by Xiangling (52.7%). However, the rate of imperfect shells in Zhonglin 5 was only 20.9%. It was suggested that the main environmental factors contributing to the ISD of the thin-shelled walnut were sunlight intensity and rainfall during the shell-hardening stage.

Keywords walnut      shell      imperfect shell development (ISD)     
Corresponding Authors: LI Baoguo,Email:lbg888@163.com   
Issue Date: 05 March 2009
URL:  
http://academic.hep.com.cn/fag/EN/10.1007/s11703-008-0062-y     OR     http://academic.hep.com.cn/fag/EN/Y2009/V3/I1/75
typeXianglingYuanfengShangsong 6Liaoning 1Zhonglin 5
percentage of perfect shell/%47.3C62.4B32.7D64.1B79.1A
percentage of imperfect shell/%52.7B37.6C67.3A35.9C20.9D
Tab0  Shell development conditions of different walnut cultivars in 2004
1 DengL (1999). Brief description of main desired walnut cultivars. South China Fruits , 28(1): 39(in Chinese)
2 LiuC M, ChenS (2000). Introduction to main desired cultivars of early-bearing walnut. Shanxi Fruits , (3): 23–24 (in Chinese)
3 Xi R T, Zhang Y P (1996). China Fruits Germplasm: Walnut. Beijing: China Forestry Publishing House(in Chinese)
4 Xiao L, Xu Y P, Zhao X G, Luo J H (1998). The developmental anatomy on the pericarp of Juglans regia. Acta Botanica Boreali-Occidentalia Sinica , 18(4): 577–580 (in Chinese)
5 Yang W C, Gao S F (1996). The early-bearing walnut in China. Journal of Hebei Forestry College , 11(Suppl): 134–137 (in Chinese)
[1] Yurong ZOU, Qinghui AI, Kangsen MAI. Ontogenic development of digestive enzyme activities in juvenile soft-shelled turtle (Pelodiscus sinensis) under cultured conditions[J]. Front Agric Chin, 2011, 5(4): 624-630.
[2] Fuqiang HE, Hongxia WANG, Zhihua ZHANG. Molecular cloning and sequence analysis of an LFY homologous gene from Juglans regia L.[J]. Front Agric Chin, 2011, 5(3): 366-371.
[3] Qunbiao ZHOU, Yaxin SANG, Li WANG, Shuangshang JI, Jing YE, Xianghong WANG. Determination of polychlorinated biphenyls by GC/MS with ultrasound-assisted extraction from shellfish[J]. Front Agric Chin, 2010, 4(4): 489-493.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed