Full TGIF Record # 269826
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Web URL(s):https://archive.lib.msu.edu/tic/its/articles/1974sup13.pdf
    Last checked: 03/15/2016
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Publication Type:
Content Type:Abstract or summary only
Author(s):Hull, R. J.
Author Affiliation:University of Rhode Island
Title:Carbon assimilation, translocation and metabolism in Kentucky bluegrass turf as a function of fertility
Section:Nutrition and fertilizers
Other records with the "Nutrition and fertilizers" Section
Meeting Info.:Blacksburg, Virginia: June 19-21, 1973
Source:Abstracts of Papers Presented at the Second International Turfgrass Research Conference. 1973, p. 13.
# of Pages:1
Publishing Information:Blacksburg, Virginia: [International Turfgrass Society]
Keywords:TIC Keywords: Cultivar evaluation; Fertilization rates; Metabolism; Nutritional requirements; Photosynthesis; Physiological processes; Poa pratensis; Soil fertility; Translocation
Cultivar Names:Merion
Abstract/Contents:"The response of turfgrass to management practices as they influence fundamental physiological processes is the subject of this study. Merion Kentucky Bluegrass plots were established in 1966 and subjected to four fertilizer ratios: N-O-O, N-P-O, N-O-K and N-P-K. In 1970, these plots were subdivided into three rate treatments: 2.5-1-1, 5-2-2, and 10-4-4 kg/200 m2. Turf was scored for quality throughout the growing seasons of 1970, 71 and 72. Soil samples were analyzed for N, P and K each year in early summer and mid-autumn. Clippings were analyzed for the same elements once each year. Carbon assimilation was measured using an infrared gas analyzer which monitored the C02 content within a glass bell jar placed over turf for two-three minutes. Assimilate translocation and metabolism was measured by exposing six inch diameter circles of turf to 14C02 and harvesting the turf at selected times following exposure. Individual grass plants were separated into shoots, shallow roots and deep roots. Plant tissue was freeze dried and the carbon-14 analyzed quantitatively and characterized biochemically. Mineral analysis of soil and plant tissue indicated that fertilizer treatments had caused marked differences in soil fertility and in the mineral content of the grass. C02 fixation rates were increased almost two-fold on high fertility plots. Carbon fixed by leaves translocated into root and crown tissue in one-two hours. Within 24 hours, most carbon fixed at any point in time was no longer mobile. During the cold season, carbon fixation continued, especially in turf maintained under high fertility. At this time, when shoot growth had all but stopped, assimilated carbon translocated over a longer period of time and a greater percentage of fixed carbon moved into crown and roots. Turf grown under high fertility maintained smaller carbohydrate storage pools but the turnover rate of these pools was greater than in low fertility turf."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hull, R. J. 1973. Carbon assimilation, translocation and metabolism in Kentucky bluegrass turf as a function of fertility. Int. Turfgrass Soc. Annexe - Tech. Pap. p. 13.
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    Last checked: 03/15/2016
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