000			01963nab|a22003017a|4500
001			65422
003			MX-TxCIM
005			20220708175109.0
008			20194s2019||||mx |||p|op||||00||0|eng|d
020			_a978-1-57808-575-0
040			_aMX-TxCIM
041			_aeng
100	0		_aRuifa Hu _96602
245	1	0	_aChapter 6. Wheat diversity changes in China, 1982-97
260			_bScience Publishers, _c2019. _aUSA :
300			_a21 pages
500			_aPeer review
520			_aChanges in production and consumption patterns for wheat in China have combined with changing production constraints to induce new wheat breeding priorities since 1950. These factors together have shaped the selection of new genetic materials by wheat breeders and have in turn induced changes in the level and trends of wheat diversity in China. Using three taxonomies-namely named varieties, morphological characteristics, and pedigree data-we compared measures of spatial diversity across seven key wheat-producing provinces from 1982 to 1997. Diversity based on genealogical and morphological data has generally increased since 1982, though there have been some significant differences between provinces, with Hebei showing a higher and Sichuan showing a lower level of diversity than the other provinces. Diversity based on named varieties has not exhibited precisely the same pattern. Nevertheless, with notable exceptions, diversity at the province and national levels in China has generally been high by international standards, whichever measure is used.
546			_aText in English
650		7	_91310 _aWheat _2AGROVOC
650		7	_2AGROVOC _91029 _aBreeding
650		7	_2AGROVOC _91303 _aVarieties
650		7	_2AGROVOC _99142 _aResearch
651		7	_2AGROVOC _93990 _aChina
700	1		_aMeng, E.C.H. _96601
773	0		_tEconomic Analysis of Diversity in Modern Wheat _g p. 85-105 _dUSA : Science Publishers, 2009. _z978-1-57808-575-0 _wG93744
942			_cBP _n0 _2ddc
999			_c65422 _d65414