摘要
为研究热带樱花在海南岛园林绿化中的推广与应用,针对其抗逆适应性进行干旱胁迫试验。研究设4个水分干旱梯度试验,采用改良指甲油印迹法测定其叶片气孔的形态特征,观察叶片形态变化。结果表明:(1)随着干旱时间延长,降低了其叶面积与叶片含水量,干旱处理30 d变化最明显;(2)随干旱程度的加重,叶片气孔密度、气孔周长等呈减小趋势;(3)干旱下气孔密度与其开放度有显著相关性(R2=0.038 3,p<0.05,N=36)。干旱条件对海南岛种植热带樱花有很大影响。
The purpose of this study is to do application and promotion of tropical cherry blossom in Hainan Island. The study set up 4 water drought gradient tests, using the improved method to determine the morphological characteristics of leaf stomata. The main test showed that： （1）Long time drought affected leaf area and leaf water content for the most obvious change of thirtieth days; （2）With the drought, stomatal density, stomatal perimeter decreased; （3）Under drought stress and stomatal density of openness has a significant correlation （R2=0.038 3, p〈0.05, N=36）. The drought conditions had a great influence on the planting of tropical cherry blossoms in Hainan Island.
出处
《热带作物学报》
CSCD
北大核心
2017年第8期1441-1445,共5页
Chinese Journal of Tropical Crops
基金
海南省自然科学基金"热带樱花在海南岛的引种与生物学性研究(No.20153093)"
