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.
Corresponding Author(s):
LI Baoguo,Email:lbg888@163.com
引用本文:
. The main factors causing “imperfect shell development” (ISD) in thin-shelled walnut[J]. Frontiers of Agriculture in China, 2009, 3(1): 75-77.
Baoguo LI, Suping GUO, Guohui QI. The main factors causing “imperfect shell development” (ISD) in thin-shelled walnut. Front Agric Chin, 2009, 3(1): 75-77.
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