Full TGIF Record # 269799
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Web URL(s):https://archive.lib.msu.edu/tic/its/articles/1974sup5a.pdf
    Last checked: 03/15/2016
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Publication Type:
i
Report
Content Type:Abstract or summary only
Author(s):Boeker, P.
Author Affiliation:Institut fur Pflanzenbau
Title:Root development under some turfgrass species and cultivars
Section:Turfgrasses
Other records with the "Turfgrasses" Section
Meeting Info.:Blacksburg, Virginia: June 19-21, 1973
Source:Abstracts of Papers Presented at the Second International Turfgrass Research Conference. 1973, p. 5.
# of Pages:1
Publishing Information:Blacksburg, Virginia: [International Turfgrass Society]
Keywords:TIC Keywords: Comparisons; Cultivar evaluation; Cultivar variation; Dry weight; Evaluative methods; Growth analysis; Growth factors; Mowing height; Root depth; Root growth; Root weight; Soil sampling
Abstract/Contents:"Since 1970 investigations on the root development under over 100 various cultivars of turfgrasses were carried on, the samples being taken in the late spring and late autumn. The depth of the sample cores reached in the beginning only until 10 cm, but was later extended up to 20 cm as it proved that until this depth there were considerable amounts of roots to be found. The soil cores were separated into layers of 5 cm each. After washing out the soil, the roots were dryed [dried] and the sand- and ash-free dry matter of the roots was determined. All comparisons are made on the basis of dry matter. The results of the investigations proved that there are considerable differences in the root weight between the various species involved. Especially high weights were found by Poa pratensis, Festuca avina, Festuca rubra rubra, and Festuca rubra commutate, slightly lower were the weights by Lolium perenne, Phleum pretense and Phleum nodosum, the least showed Agrostis canina and Agrostis tenuis. In the uppermost layer of 0-5 cm the root weights increased with the age of the swards, but this is partly due to the fact that it is somewhat difficult to distinguish here exactly between living roots and dead material of the basis of the shoots. In the following layer s below 5 cm the root weight seems to be higher in spring than in autumn, which may correspond with the development of the shoots above the soil. By most of the species 90% am more of the roots were concentrated in the layer between 0-5 cm, but by Festuca rubra and Agrostis tenuis the proportion of roots may here be only about 80% varying with the season. The height of cutting (1 cm and 3 cm respectively) is of influence on to root weight and distribution. Within the species there are considerable differences between the cultivars which are statistically significant. The differences refer to the total amount of roots as well as to the distribution in the various layers. It was possible to find cultivars which develop most of their roots in the uppermost layer and others which have their roots in a somewhat higher amount and percentage in the lower layers of the soil. This might be of some importance for the drought resistance of the cultivars or for their use in turf on slopes for erosion control."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Boeker, P. 1973. Root development under some turfgrass species and cultivars. Int. Turfgrass Soc. Annexe - Tech. Pap. p. 5.
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https://archive.lib.msu.edu/tic/its/articles/1974sup5a.pdf
    Last checked: 03/15/2016
    Requires: PDF Reader
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