000			03465nab a22004217a 4500
001			G98191
003			MX-TxCIM
005			20230327185245.0
008			211125s2014 hu |||p|op||| 00| 0 eng d
022			_a1788-9170 (Online)
022	0		_a0133-3720
024	8		_ahttps://doi.org/10.1556/CRC.2013.0047
040			_aMX-TxCIM
041			_aeng
090			_aCIS-7356
100	1		_aMorgounov, A.I. _9833 _gFormerly Global Wheat Program _8INT1787
245	1	0	_aEffect of climate change and variety on long-term variation of grain yield and quality in winter wheat in Kazakhstan
260			_aSzeged (Hungary) : _bAkadémiai Kiadó, _c2014.
500			_aPeer review
500			_aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0133-3720
520			_aWinter wheat yield in three administrative regions of Kazakhstan (Almaty, South Kazakhstan, and Zhambyl) was analyzed during 1972?2009. Yield gains were greatest during 2000?2009, but absolute yields remain low (1.5?1.7 t/ha) and much below the production potential. Changes in important weather parameters over the same time period were also analyzed. Results indicated significant (15?20%) warming in winter and spring, as well as some increase in precipitation (spring and annual), especially in the last ten years. Increased temperatures in winter and precipitation in spring/annually were positively correlated with winter wheat yield, while increased temperatures in May had a small but negative effect on grain yield. Data from the four stations of the official variety testing system from 1972?2009 were also analyzed to evaluate the effect of variety on yield and quality. Genetic gain of the varieties released in the 1990s and 2000s, compared to Bezostaya 1 (1960s), was around 30%. However, the bread-making quality of new varieties, as well as the overall grain quality in variety trials, were reduced in protein content, with deteriorated dough physical properties, and therefore did not meet superior class requirements. Genetic diversity (coefficient of parentage and Shannon?s diversity index) of the winter wheat varieties tested in the 2000s was broader compared to the 1970s and 1980s, reflecting enhanced international cooperation and germplasm exchange. A negative association between genetic diversity parameters and some quality traits can be attributed to the utilization of more diverse high yielding parents with limited grain quality potential. Further yield increases and reductions in the yield gap should be based on improved agronomy, and the use of broadly-adapted varieties, with resistance to the biotic and abiotic stresses likely due to climate change.
536			_aGlobal Wheat Program
546			_aText in English
591			_aCIMMYT Informa No. 1866
594			_aINT1787
595			_aCSC
650		7	_92104 _aWinter wheat _2AGROVOC
650		7	_91303 _aVarieties _2AGROVOC
650		7	_91138 _aGrain _2AGROVOC
650		7	_91313 _aYields _2AGROVOC
650		7	_91028 _aBreadmaking _2AGROVOC
650		7	_91231 _aQuality _2AGROVOC
700	1		_aAbugalieva, A.I. _93367
700	1		_aMartynov, S. _91344 _gGenetic Resource Program _8I1706879
773	0		_tCereal Research Communications _gv. 42, no. 1, p. 163-172 _x0133-3720 _dSzeged (Hungary) : Akadémiai Kiadó, 2014. _wG445006
856	4		_uhttps://hdl.handle.net/20.500.12665/1488 _yAccess only for CIMMYT Staff
942			_cJA _2ddc _n0
999			_c30160 _d30160