大节竹属4种竹子叶片抗寒性.PDF

安徽农业大学学报, 2018, 45(1): 59-63 Journal of Anhui Agricultural University [DOI] 10.13610/ki.1672-352x030 网络出版时间：2017/12/14 14:41:20 [URL] /kcms/detail/34.1162.S1441.060.html 大节竹属 4 种竹子叶片抗寒性 岳祥华，雷 刚 (安徽太平试验中心，黄山 245700) 摘 要：以11 月、12 月、翌年1 月、2 月和3 月的摆竹、棚竹、中华大节竹和浦竹仔的半致死温度、可溶性 糖含量和丙二醛质量摩尔浓度的测定和计算结果为依据，对4 种竹子的抗寒性进行了研究。结果表明，4 种竹子之 间的抗寒能力存在不同程度的差异。4 种竹子不同月份间的半致死温度呈现显著差异，且均表现为 1 月份半致死温 度最低，3 月份最高。可溶性糖含量与半致死温度变化规律相反，表现为1 月份最高，3 月份最低。4 种竹子的丙 二醛质量摩尔浓度也存在显著差异，其中1 月份，中华大节竹的丙二醛质量摩尔浓度最低，浦竹仔最高。在试验的 几个月中，半致死温度与可溶性糖含量均呈极显著负相关，说明增加可溶性糖含量能够提高竹子的抗寒性。从 4 种竹子不同月份的半致死温度的计算结果看，1 月份（–3.75℃～–8.5℃）最低，3 月份（–0.57℃～–0.64℃）最 高,抗寒能力强弱均表现为 1 月＞12 月＞2 月＞11 月＞3 月。以1 月份的半致死温度及野外冬季受低温胁迫的形态 表现综合判断，4 种竹子抗寒能力强弱顺序为中华大节竹＞摆竹＞棚竹＞浦竹仔。 关键词：大节竹属；抗寒性；半致死温度；可溶性糖；丙二醛 中图分类号：S795 文献标识码：A 文章编号：1672352X (2018)01005905 Cold resistance of four species of bamboo leaves in Indosasa YUE Xianghua, LEI Gang (Anhui Taiping Experimental Center, Huangshan 245700) Abstract: Cold resistance adaptability of Indosasa shibataeoides, Indosasa Iongispicata, Indosasa sinica, In- dosasa hispida leaves was studied based on the measurement and calculation results of the semi-lethal temperature, soluble sugar and malondialdehyde (MDA) mass molar content of the bamboo leaves in November, December and January,February and March in next year. The results showed that there were different degrees of cold resistance among the four kinds of bamboo. The semi-lethal temperatures among the four different species of bamboo in dif- ferent months showed significant differences with the lowest in January and the highest in March.The law of change about soluble sugar was opposite