4种一年生藜科植物幼苗的生长动态  

Growth Dynamic State of Seedlings of Four Annuals Chenopodiaceae

作　　者：全杜娟[1] 魏岩[1] 严成[2] 

机构地区：[1]新疆农业大学草业与环境科学学院新疆草地资源与生态重点实验室及西部干旱荒漠区草地资源与生态教育部重点实验室,乌鲁木齐830052 [2]中国科学院新疆生态与地理研究所,乌鲁木齐830011

出　　处：《新疆农业大学学报》2011年第6期465-468,共4页Journal of Xinjiang Agricultural University

基　　金：国家自然科学基金项目(30770374)

摘　　要：通过对散枝猪毛菜(Salsola brachiata)、紫翅猪毛菜(S.affinis)、角果藜(Ceratocarpus arenarius)和叉毛蓬(Petrosimonia sibirica)这4种一年生藜科植物幼苗阶段的地上、地下生物量及株高与根长的动态变化进行研究,分析了荒漠植物的生态适应策略。结果表明,4种植物幼苗阶段的植株高度与根均生长缓慢,且根的增长量高于株高的增长量;地上生物量的积累大于地下生物量。4种藜科植物在幼苗阶段所表现出的地上、地下生长策略保证了其幼苗能够在荒漠环境中顺利生长,是植物长期适应荒漠环境所形成的生长策略。This research was carried out to analyze the ecological adaptability of desolated plants,based on studying dynamic changes of growth quantity,plant height,root length of aboveground and underground of 4 annual chenopodiaceae plants： Salsola brachiata, S. affi＇nis, CeratocarDus arenarius and Petrosiznonia sibirica during the seedling period. The result indicated that the plant height and length of the four plants during seedling period grew slowly and growth rate of root was higher than that of plant height. The strat- egies performed by seedlings of 4 annual chenopodiaceae plants growing on the aboveground and in under- ground ensured successful growth of the seedlings in desert environment,whose characteristics were devel- oped in desert environment during long period growth.

关 键 词：藜科 幼苗 生长动态 生态适应 

分 类 号：Q949.745.1[生物学—植物学]