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| Web URL(s): | http://img.kisti.re.kr/soc_img/society//tsk/JDHHBF/1992/v6n1/JDHHBF_1992_v6n1_29.pdf
Last checked: 01/28/2013
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Yoon, Y. B.;
Lee, J. S. |
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| Author Affiliation: | Yoon: Graduate School, Kon-Kuk University; Lee: College of Liberal Arts and Sciences, Yonsei University |
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| Title: | The growth and thatch accumulation of Kentucky bluegrasses as affected by cutting management: I. Varietal differences under removing clipping residues |
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| Source: | Korean Journal of Turfgrass Science. Vol. 6, No. 1, 1992, p. 29-37 [517-525]. |
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| Publishing Information: | Korea: Turfgrass Society of Korea |
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| # of Pages: | 9 |
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| Keywords: | TIC Keywords: Growth factors; Thatch accumulation; Poa pratensis; Mowing; Clipping residues; Dry weight; Tillering rate; Rhizomes; Root weight
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| Cultivar Names: | Park; Kenblue; Newport |
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| Abstract/Contents: | "This experiment was carried out in order to study the changes of morphological characters of the growth and thatch accumulation in 3 varieties of Kentucky bluegrass under removing clipping residues as affected by cutting management. The varieties used were Park, Kenblue and Newport. The results obtained are as follows: 1. The dry weight of leaf, stem and number of tiller was highest at 22. June and lowest at 21. Aug in all varieties. And then the dry weight of rhizome, root and thatch increased with growth progressed (Table 3). 2. The relationship of the dry weight of biological yield and number of tillers was quadratically increased in the growth stage of spring (R2=0.982**), and linearlly increased in the growth stage of autumn (r=0.944*) (Fig. 1). 3. The dry weight of thatch increased as an exponentially equation in all 3 varieties of Kentucky bluegrass (Fig. 2). Thatch increased rate (TIR) can used to estimate the specifying a quantity of thatch accumulation from the turf. Thatchincrease rate equation as follows. Where TH2 is the dry weight of thatch at T2 survey time and TH1 is the dry weight of thatch at T1 survey time. TIR (mg/cm2/day)= (Ln TH2-Ln TH1)/(T2-T1). 4. Correlation coefficients between the dry weight of thatch and leaf weight was -0.633(P>0.05), and number of tillers was -0.666(P>0.05), respectively. It means that thatch accumulation increased with growth depression of leaf and stem." |
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| Language: | Korean |
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| References: | 19 |
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| Note: | Abstract appears in English
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Yoon, Y. B., and J. S. Lee. 1992. The growth and thatch accumulation of Kentucky bluegrasses as affected by cutting management: I. Varietal differences under removing clipping residues. (In Korean, with English abstract.) Korean Journal of Turfgrass Science. 6(1):p. 29-37 [517-525]. |
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| Web URL(s):
http://img.kisti.re.kr/soc_img/society//tsk/JDHHBF/1992/v6n1/JDHHBF_1992_v6n1_29.pdf
Last checked: 01/28/2013
Requires: PDF Reader |
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MSU catalog number: b5472572a |
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