Active condensation of the atmospheric moisture as a self-irrigation mechanism for the ground-covering plants

Hortus Botanicus

Konnov Nicolay Alekseevich¹  Prokhorov Alexey Anatolievich²  Kuvaitsev Mikhail Valerievich³ 

[1] Federal State Scientific Institution “All-Russian Research Institute of Horticulture and Subtropical Crops”, Russian Academy of Sciences;Petrozavodsk State University;Subtropical Botanical Garden of Cuban;

关键词: засухоустойчивость;    атмосферная влага;    конденсация воды;    температура листьев;    почвопокровные растения;    Liriope;    Ophiopogon;    Convallariaceae;   

DOI  :  10.15393/j4.art.2015.2802

来源: DOAJ

【 摘 要 】

Studies conducted at the Subtropical Botanical Garden of Kuban (Utch-Dere, Sochi) pretty much allow to explain the abnormally high drought resistance of Liriope graminifolia Lour. and Ophiopogon japonicus Ker.-Gawl., plants that naturally grow mostly in sufficient humidity. Quite low temperatures of the leaves’ surface allow to effectively condense the atmospheric moisture and to direct it along the leaf blade to the ground. The accumulation of condensation water leads to self-irrigation, a mechanism that ensures survival of plants in case of insufficient natural precipitation in the form of rain or fog. Combined with xeromorphic leaves with a thick cuticle and thick branch roots with fusiform bulb-shaped swellings, allowing to store water, makes the named plants extremely resistant to stress factors such as prolonged summer droughts accompanied by high daytime temperatures.

【 授权许可】

Unknown