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020			_a9781003307938
024	8		_ahttps://doi.org/10.1201/9781003307938-16
040			_aMX-TxCIM
041			_aeng
100	1		_aVelu, G. _8INT2983 _9880 _gGlobal Wheat Program
245	1	0	_aChapter 16. Wheat biofortification and mainstreaming grain zinc and iron in CIMMYT wheat germplasm
260			_bCRC Press, _c2023. _aUSA :
500			_aPeer review
500			_aReference only
520			_aSeveral studies have indicated that ample genetic variation exists in wheat for the success of a biofortified wheat breeding program. Consequently, the International Maize and Wheat Improvement Center (CIMMYT) embarked upon the breeding program to develop and deploy biofortified wheat lines and the NARS in South Asia and Africa, frequently get access to two important nurseries, namely High Zinc Advance Nursery (HZAN) and Harvest Plus Yield Trial (HPYT), and bred at CIMMYT for varietal improvement. These nurseries are field-evaluated at multiple locations to shortlist candidate varieties possessing more than 6 ppm additional Zn concentration. Following that, elite lines are submitted to the varietal release programs in the relevant countries. Recently, sharing of early-generation segregating materials (F4/F5) was started for the fast-track development of locally adapted varieties for high Zn. The new biofortified varieties that have a 100% target increment for grain Zn concentration (37 ppm) and are agronomically comparable to, or superior to, popular South Asian wheat cultivars were released in target countries (e.g., Zincol-2016 and Akbar-2019). Resistance to major diseases, such as yellow rust and stem rust (Ug99), was also incorporated into zinc-enriched wheat lines. So far, 25 biofortified wheat varieties have been released in eight different countries. Since 2020, CIMMYT has begun to integrate grain Zn and Fe traits into all germplasm and breeding pipelines aimed at more than 60 million ha of wheat-growing areas of Asia Africa, and Latin America. By incorporating higher levels of key nutrients in all breeding lines without compromising on agronomic performance will lead to availability of a larger number of biofortified varieties to farmers.
546			_aText in English
650		7	_2AGROVOC _91310 _aWheat
650		7	_2AGROVOC _91731 _aBiofortification
650		7	_2AGROVOC _91138 _aGrain
650		7	_2AGROVOC _91315 _aZinc
650		7	_2AGROVOC _93544 _aIron
650		7	_91136 _aGermplasm _2AGROVOC
700	1		_aSingh, R.P. _8INT0610 _9825 _gGlobal Wheat Program
700	1		_a Ibba, M.I. _8001711897 _95836 _gGlobal Wheat Program
773	0		_tWheat Science: Nutritional and Anti-Nutritional Properties, Processing, Storage, Bioactivity, and Product Development _g p. 421-427 _dUSA : CRC Press, 2023 _z9781003307938
942			_cBP _n0 _2ddc
999			_c66428 _d66420