Frontiers of Agriculture in China >
The main factors causing “imperfect shell development” (ISD) in thin-shelled walnut
Received date: 16 Apr 2007
Accepted date: 05 Jun 2008
Published date: 05 Mar 2009
Copyright
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.
Key words: walnut; shell; imperfect shell development (ISD)
Baoguo LI , Suping GUO , Guohui QI . The main factors causing “imperfect shell development” (ISD) in thin-shelled walnut[J]. Frontiers of Agriculture in China, 2009 , 3(1) : 75 -77 . DOI: 10.1007/s11703-008-0062-y
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