热带亚热带植物学报Issue(5)：559-566,8.DOI:10.11926/j.issn.1005-3395.2015.05.011
谷子的亲缘识别能力及其与种植密度和土壤养分水平的关系
Kin Recognition inSetaria italicaand Its Relations with Plant Density and Soil Nutrient Level
摘要
Abstract
The aim was to explore whether crop plant could recognize its kin neighbors, and how it respond in different environmental conditions. The interaction effects of three factors, including neighbor identity (kin plant, non-kin plant and stranger plant), plant density and soil nutrient level, on the aboveground biomass allocation of Setaria italicawere studied by ifeld experiments. The results showed that the net reproductive biomass allocation and seed biomass allocation ofS. italicaplanted with neighboring kins increased and the vegetative biomass allocation decreased significantly than those planted with neighboring non-kins. Under high plant density, the ear length, net reproductive biomass allocation and seed biomass allocation ofS. italicain kin group were signiifcantly higher than those in non-kin group (P<0.05), while the vegetative biomass allocation was lower. As soil nutrient level increased, the proportion of biomass allocation to seed ofS. italicaplanted with neighboring kins signiifcantly increased, while that of vegetative biomass allocation signiifcantly decreased (P<0.05). It suggested thatS. italicacan recognize its kin neighbors, and this ability was regulated by plant density and soil nutrient level. Under high plant density and high soil nutrient level, the ability ofS. italicato recognize its kin neighbors tended to be stronger.关键词
谷子/亲缘识别/种植密度/土壤养分/生物量分配Key words
Setaria italica/Kin recognition/Plant density/Soil nutrient/Biomass allocation引用本文复制引用
陈青青,李德志,贠小涛,耿松,赖苏雯,陈惠娟,樊治华,黄瑶瑶,欧阳义..谷子的亲缘识别能力及其与种植密度和土壤养分水平的关系[J].热带亚热带植物学报,2015,(5):559-566,8.基金项目
国家自然科学基金项目(31170387,31370435)资助 （31170387,31370435）
