Effects of plant density on forage production in five populations of kleingrass
作者:
B.A. Young,
C.R. Tischler,
期刊:
African Journal of Range & Forage Science
(Taylor Available online 1995)
卷期:
Volume 12,
issue 1
页码: 7-10
ISSN:1022-0119
年代: 1995
DOI:10.1080/10220119.1995.9647856
出版商: Taylor & Francis Group
关键词: Forage yield;Panicum coloratum
数据来源: Taylor
摘要:
Kleingrass (Panicum coloratumL.) forage yield evaluation plots are often established at a density of 6.0 plants m‐2to accommodate mechanical transplanting and harvesting equipment. However, forage crops are usually established from seed at higher plant densities. Experiments were conducted to determine if populations respond dissimilarly to planting density, and if the ability to statistically distinguish among populations is density‐dependent. Two, 2‐y studies compared the yield of five populations of kleingrass at three plant densities (6.1, 10.8 and 24.2 plants m‐2). Although all populations produced more dry matter per plant with decreasing density, population x density interactions were absent. In addition, experiments at all three densities had equivalent power to statistically separate populations. Kleingrass yield trials can be established at a density which will accommodate mechanical transplanting and harvesting equipment with confidence that the relative differences among populations determined from research plots will be similarly observed in swards.
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