000			02937nam a22004577a 4500
001			G81207
003			MX-TxCIM
005			20240919021106.0
008			121211s ||||f| 0 p|p||0|| |
020			_a970-648-116-8
040			_aMX-TxCIM
072		0	_aA50
072		0	_aF30
090			_aLook under series title
100	1		_aGuangtang, P. _uAsian Regional Maize Workshop, 8: New Technologies for the New Millennium
110	0		_aCentro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico, DF (Mexico)
111	2		_aProceedings of the Asian Regional Maize Workshop _cBangkok (Thailand) _d5-8 Aug 2002
245	0	0	_aInquiry about of strategies of maize breeding in South-West China
260			_aMexico, DF (Mexico) _bCIMMYT : _c2004
300			_ap. 127-129
340			_aPrinted
520			_aBased on the successful results of a maize genetics and hybrid breeding study carried out by local and foreign scientists, we suggest paying attention to GCA selection, making use of TTC (Triple Test Cross Design), and combining genetic study and population improvement with inbred and hybrid selection. This would help with making selections more accurate, shortening the period of developing inbred and hybrid, and speeding up maize breeding in southwest of China. Hybrids developed from Temperate Zone germplasms are not adaptable for the complicated and changeable circumstances in this mountainous area. According to the model of maize heterosis in China, a new model is raised for the comprehensive utilization of Torrid Zone germplasms with characteristics such as strong resistance, extensive adaptability, and great organism yield. Temperate Zone germplasms show characteristics such as great economic coefficient. In this model, inbreds of two kinds of germplasm are developed separately and the fine characteristics should be synthesized in a hybrid, not in an inbred to breed hybrids with great and stable yield and broad adaptability. The inbred selected in the southwest of China should be crossed with external inbred from foreign counties and north of China. The cooperation should be strengthened and inbreeds should be exchanged especially between south and north China. In this way, maize-breeding efficiency will increase greatly.
546			_aEnglish
591			_a0501|AGRIS 0501|AL-Maize Program
593			_aJuan Carlos Mendieta
595			_aCPC
650	1	0	_aChina _91042
650	1	7	_aCrop yield _gAGROVOC _2 _91066
650	1	0	_aEcologists
650	1	0	_aEnvironmental factors
650	1	7	_aGermplasm _gAGROVOC _2 _91136
650	1	7	_aInbred lines _gAGROVOC _2 _91155
650	1	7	_aMaize _gAGROVOC _2 _91173
650	1	0	_aTemperate zones
653	0		_aCIMMYT
650	1	0	_91151 _aHybrids _gAGROVOC
650	1	7	_aPlant breeding _gAGROVOC _2 _91203
700	1		_aSrinivasan, G.|Zaidi, P.H.|Prasanna, B.M.|Gonzalez, F.|Lesnick, K. _eeds.
700	1		_aTingzhao, R., _ecoaut.
942			_cPRO
999			_c7452 _d7452