论文部分内容阅读
植物对于干旱条件的抗御能力可以从形态特征和生理特性反应出来,这些反映也表现出对水份的需求状况。随着农田水利基本建设的发展,果园灌溉也越来越显示出是栽培管理的重要措施之一。对于不同品种何时灌溉既有利于果树的生长又是最经济的,是值得探讨的。我们根据长期的田间观察进行了几个甜橙品种的与抗旱性有关的叶片形态结构的比较观察和需水生理指标的初步探讨。一、叶片形态观察在土壤湿度低于饱和含水量的50％以下,在品种区选择同令的同酸橙砧的锦橙、先锋
The resilience of plants to drought conditions can be reflected in their morphological and physiological characteristics, which also reflect the demand for water. With the development of farmland water conservancy construction, orchard irrigation more and more shows that it is one of the important measures of cultivation and management. It is worth discussing when the different varieties of irrigation is conducive to the growth of fruit trees is the most economical. Based on long-term field observations, we conducted a comparative observation of drought-resistant leaf morphological structures of several sweet orange cultivars and preliminary discussions on water physiological indices. First, the leaf morphology observed in the soil moisture below 50% of saturated water content, select the same variety in the same area with orange anvil, orange pioneer