Ecogenetic Characteristics of Dandelion (Taraxacum officinale s.l.) Populations from the Techa River Floodplain Ecosystems

This study looks into T. officinale cenopopulations growing in the Techa River floodplain under conditions of chronic low-dose irradiation. It has been shown that the left-bank and right-bank cenopopulations differ from one another, as well as from the control (background) population, in the allozyme structure, viability, and radioresistance of the seed progeny and the mechanisms of antioxidant protection. In nature, cenopopulations differing in their phenogenetic structure may have different strategies of adaptation to the chronic influence of low radiation doses against the background of changing environmental conditions. The consequences of irradiation for such cenopopulations, including the viability and radiosensitivity of their seed progenies, may also differ considerably.     

中缅边境一带发展潜力巨大的魔芋新品种--珠芽魔芋

介绍了珠芽魔芋的基本生物学特性及其独特的生长方式,特别是地上植株"珠芽"小球茎生长及其籽种无性繁殖的特点,显著增加了魔芋的繁殖系数.该品种开发潜能大、种植风险低、经济效益高,是一种低成本且易产业化的魔芋优势种质资源.