DOI: 10.1111/j.1365-2494.1983.tb01627.x Web URL(s): http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1983.tb01627.x/pdf Publication Type:
i
Refereed Author(s): Hampton, J. G. ;
Clemence, T. G. A. ;
Hebblethwaite, P. D. Author Affiliation: University of Nottingham School of Agriculture, Sutton Bonington, UK Title: Response of amenity types and influence of a growth regulator Article Series: Nitrogen studies in Lolium perenne grown for seed, part 4 Source: Grass and Forage Science . Vol. 38, No. 2, June 1983, p. 97-105.# of Pages: 9 Related Web URL: http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1983.tb01627.x/abstract Keywords: TIC Keywords: Lolium perenne ; Fertilizers ; Nitrogen ; Seed production ; Growth regulators ; Nutrition ; Nitrogen fertilizers Abstract/Contents: "In field trials in 1979-81, perennial ryegrass cultivars Royal and Majestic (amenity) and Morenne (agricultural) produced maximum seed yields at levels of applied N ranging from 40 to 160 kg ha⁻¹. Available soil N levels were estimated at 55 kg ha⁻¹; hence maximum seed yields were obtained at total nitrogen levels of 95-135 kg ha⁻¹ in Royal, 95-215 kg ha⁻¹ in Morenne, and 175-215 kg ha⁻¹ in Majestic. Applied N at rates above 120 kg ha⁻¹ either reduced or did not significantly increase seed yield, decreased seed numbers per unit area and decreased spikelets per tiller and seeds per spikelet. The use of a growth regulator increased seed yields by preventing lodging, but did so irrespective of nitrogen application rate. It is suggested that failure to increase seed yield at high Nitrogen rates is a result not of poor pollination because of lodging, but seed abortion as a consequence of competition for assimilate supply by secondary vegetative tillers." Language: English References: 19 See Also: See also part 1 "Level of application" Journal of the British Grassland Society , 32(4) December 1977, p. 195-204, R=200485. R=200485 Journal of the British Grassland Society , 33(3) September 1978, p. 159-166, R=199203. R=199203 Grass and Forage Science , 34(3) September 1979, p. 221-227, R=200486. R=200486 Note: Tables Geographic Terms: UK See Also: Other items relating to: PGRS ASA/CSSA/SSSA Citation (Crop Science -Like - may be incomplete ): Grass Forage Sci. 38(2):p. 97-105.Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=4352 If there are problems with this record, send us feedback about record 4352 . Choices for finding the above item : DOI: 10.1111/j.1365-2494.1983.tb01627.x Web URL(s): http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1983.tb01627.x/pdf SB 197 .B7 Find from within TIC: Request through your local library's inter-library loan service (bring or send a copy of this TGIF record)
