Data/hora: 26/09/2024 10:23:50

Biblioteca(s): 	Embrapa Florestas.	
Data corrente: 	06/06/1995	
Data da última atualização: 	23/02/2015	
Autoria: 	SHIMIZU, J. Y.	
Título: 	Variation in frost resistance and monoterpene compositon in Eucalyptus species.	
Ano de publicação: 	1974	
Fonte/Imprenta: 	1974.	
Páginas: 	44 f.	
Idioma: 	Inglês	
Notas: 	Thesis (Master of Science in Forestry) - The Graduate Council, The University of Florida, Florida.	
Conteúdo: 	Analysis of cold resistance in Eucalyptus species showed significant differences in early and late cold resistances among halfsib families and also among plants from bulk seed-lots of definitely known species. Variations among families within species did not allow classification by species tested as either resistant or susceptible. There was no indication of correlation between early and late cold resistance. Variations in monoterpene composition were remarkable among species an among families within species. Variations among individuals within seed-lot seemed due to segregation between genes for high and low concentrations of one or more monoterpenes. The percentages of cold damage and the monoterpene concentrations showed bimodal distribution which suggests control by few genes. Early cold resistance was significantly associated with high concentration of alfa-phellandrene and p-cymene. Some of the half-sib families which had uncertain identifications could be tentatively identified by comparison of their monoterpene characters with those of definitely known species.	
Thesagro: 	Frio; Genética; Muda; Resistência.	
Thesaurus Nal: 	Eucalyptus; frost; genetics; seedlings.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Florestas (CNPF)	
Exemplares: 	CNPF - (29972-1) - ADD - TS - -- - TS0052 -  - TS0052 - DIS