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阐明黑腐病对苗期花椰菜的根系形态和生理影响，为建立花椰菜抗黑腐病根系育种新途径提供
依据，利用黑腐病菌感染花椰菜抗病品种雪峰的叶片后，研究植株根系发生的一系列形态和生理变化。
结果表明，接种7 天后的植株根长、根干重、地上部干重、根系活力比接种后2 天的显著增加。接种处理
的植株根长、根干重和地上部干重明显比未接种对照（CK）低，但是接种幼苗的根系活力比未接种对照
的根系活力高。接种3 天...
Oviposition preference of Pieris brassicae (L) on different Brassica oleracea var. capitata L. cultivars
white cabbage cultivars Pieris brassicae oviposition preference
2010/1/19
Cabbage White Butterfly, Pieris brassicae L. is widely distributed pest world wide
and causes severe damage to white cabbage (Brassica oleracea var. capitata f. alba L.). We
studied oviposition pr...
Black rot of broccoli（Brassica oleracea var. italica）caused by Xanthomonas campestris pv. campestris
broccoli black rot Xanthomonas campestris pv. campestris
2009/3/17
A new bacterial disease was observed on leaves of broccoli (Brassica oleracea L. var. italica Plen.) in a field in Gunma Prefecture, Japan in 2001. The causal agent was identified as Xanthomonas cam...