Fastlink of full TGIF record #4744

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	Full TGIF Record # 4744 Item 1 of 1
Publication Type:	Proceedings
Author(s):	Ceccarelli, Salvatore; Lorenzetti, Franco
Author Affiliation:	Plant Breeding Institute, University of Perugia, Italy
Title:	Within-varieties variability in differently adapted types of Lolium perenne
Section:	Breeding and seed production of grasses and legumes Other records with the "Breeding and seed production of grasses and legumes" Section
Source:	International Grassland Congress, Proceedings. Vol. 1, 1977, p. 329-332.
Publishing Information:	Zurich, Etc., V. P.
Keywords:	TIC Keywords: Cultivar variation; Lolium perenne; Heading date; Leaf blade length; Leaf width; Stem length; Seed dispersal
Abstract/Contents:	"The within-variety variances were estimated at Perugia (Central Italy) for heading time, flag leaf length and width, and legth of the tallest stem in 22 varieties of Lolium perenne. The 22 varieties, grouped on the basis of their country of origin, were characterized by different levels of variability; the variances estimated in varieties from Holland, Denmark, France, and Germany were always higher than those of the Italian varieties, the differences being significant in 11 out of 16 cases. The highest variability observed in nonadapted types suggests the opporunity of reconsidering the vailidity of the ruels for which certilfied seed can move freely from one country to another because, uniformity being a character required for all the varieties, in cross-pollinated grass species the term "variety" can be applied to a particular population only in the area of adaptation."
Language:	English
References:	7
Note:	Tables
	ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Ceccarelli, S., and F. Lorenzetti. 1977. Within-varieties variability in differently adapted types of Lolium perenne. p. 329-332. In International Grassland Congress, Proceedings. Zurich, Etc., V. P.
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