Comparative growth of Palmer amaranth (Amaranthus palmeri) accessions

被引：33

作者：

Bond, JA

Oliver, LR

机构：

[1] Louisiana State Univ, Rice Res Stn, Rayne, LA 70578 USA

[2] Univ Arkansas, Dept Crop Soil & Environm Sci, Fayetteville, AR 72701 USA

来源：

WEED SCIENCE | 2006年 / 54卷 / 01期

关键词：

growth analysis; leaf area ratio; net assimilation rate; relative growth rate; specific leaf area; stem leaf ratio; weed biology;

D O I：

10.1614/WS-04-155R2.1

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

A 2-yr field study was conducted to compare growth characteristics of 24 Palmer amaranth accessions collected from across the indigenous range of the species in the United States. Variation in growth and development of Palmer amaranth was noted among accessions based oil leaf area ratio (LAR), specific leaf area (SLA), net assimilation rate (NAR), and stein leaf ratio (SLR), but only SLR varied across harvest intervals an-long accessions. Accessions collected across the range of Palmer amaranth in the United States displayed variation in gowth and development based on differences in LAR, SLA, NAR, and SLR. Observed differences among accessions indicate the existence of Palmer amaranth ecotypes.

引用

页码：121 / 126

页数：6

共 41 条

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