江西农业大学学报2015，Vol.37Issue(5)：819-824,6.DOI:10.13836/j.jjau.2015124
播种期与移栽方式对籽粒苋生长和生物量的影响
Effects of Planting Date and Transplanting on Growth and Biomass of Amaranthus hypochondriacus
摘要
Abstract
The experiment was conducted to explore the effect of different planting dates and cultivation patterns on morphological character,accumulation and allocation biomass of Amaranthus hypochondriacus (A.Hypochondriacus).A.Hypochondriacus species K112 and R104 were cultivated as plant materials,to compare the difference in morphological indexes and biomass under different planting dates and cultivation patterns.The results showed that toth transplanting and early-planting showed there was increased the biomass of A.Hypo-chondriacus to various degrees.Analysis statistics of that correlation relationships between biomass and multiple growth under different cultivation patterns.The plant height,ground diameter,SPAD,ratio of height to diame-ter,and root length of A.Hypochondriacus planted in April was significantly higher than those planted in May,and the total biomass of A.Hypochondriacus planted in April also showed 2.9 and 15.8 times increments in spe-cies K112 and R104,respectively than that planted in May.For the same planting dates,the indexes of ground diameter,plant height,leaf area,root length of transplanted A.Hypochondriacus were significantly greater thanwithout being transplanted,and the total biomass of the two species,K112 and R104,have increase 13.23%and 29.7%,respectively.Transplanting was benefit to the root systems of A.Hypochondriacus,but have no im-pact on the allocation of biomass.When consider the A.Hypochondriacus species used in this study,transplan-ting has greater influence on species R104 than species K112.According to the multiple regression analysis,the dry weight of root,ground diameter,plant height were the key factors for the allocation biomass of A.Hypochon-driacus,and the dry weight of root was the most important factor.关键词
籽粒苋/移栽/播种期/生物量Key words
Amaranthus hypochondriacus/transplanting/planting dates/biomass分类
农业科技引用本文复制引用
游璐,涂淑萍,刘细燕,胡冬南..播种期与移栽方式对籽粒苋生长和生物量的影响[J].江西农业大学学报,2015,37(5):819-824,6.基金项目
国家科技支撑计划项目(2012BAD14B14) （2012BAD14B14）
