Evaluation of the Stress Adaptive Trait Yield Nursery (SATYN) in irrigated wheat growing locations in Mexico during the 2015-16 growing season
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ArticleLanguage: English Publication details: Mexico : CIMMYT, 2016.Subject(s):
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Proceedings of the 2nd International TRIGO Wheat Yield Potential p. 10-14Summary: The SATYN (Stress Adaptive Trait Yield Nursery) was established as a uniform trial in five locations of Mexico (Baja California, Guanajuato, Jalisco, Sinaloa, and Sonora) during the 2014-15 crop season. It included 28 outstanding bread wheat lines derived from, or having Parula, Pastor, Veery, synthetic lines, SOKOLL, or WEEBIL 1 in their parentage, with the final two and Roelfs F2007 included as checks. Grain yield, plant height, days to heading, days to maturity, harvest index, biomass, spikes per square meter, thousand kernel weight, and grains per square meter were evaluated. Independent analyses of variance by location and a combined analysis of variance with the data from all the locations were performed for each variable. Significant differences were observed among locations, genotypes, and the genotype-by-environment interaction for all variables studied. From the combined analysis, two sister lines derived from the cross Sokoll/Weebil 1 (genotypes 25 and 23) showed better average yields than the best check, by 7.9 and 6%, respectively, and a tendency to interact positively with environments. Their good performance can be explained, at least partially, by their outstanding TKW. Similarly, line 4 (JNRB.5/PIFED/5/BJY/COC//PRL/BOW/3/SARA/THB//VEE/4/PIFED) deserves special attention for its tendency to outyield the checks in Sonora and Sinaloa, environments characterized this season by exceptional heat stress. Its good performance seems to be associated with maintaining good values of biomass and thousand kernel weight and this type of material could be more valuable in the future, as global warming increases.
| Item type | Current library | Collection | Call number | Status | Date due | Barcode | Item holds | |
|---|---|---|---|---|---|---|---|---|
| Conference proceedings | CIMMYT Knowledge Center: John Woolston Library | CIMMYT Staff Publications Collection | Available |
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The SATYN (Stress Adaptive Trait Yield Nursery) was established as a uniform trial in five locations of Mexico (Baja California, Guanajuato, Jalisco, Sinaloa, and Sonora) during the 2014-15 crop season. It included 28 outstanding bread wheat lines derived from, or having Parula, Pastor, Veery, synthetic lines, SOKOLL, or WEEBIL 1 in their parentage, with the final two and Roelfs F2007 included as checks. Grain yield, plant height, days to heading, days to maturity, harvest index, biomass, spikes per square meter, thousand kernel weight, and grains per square meter were evaluated. Independent analyses of variance by location and a combined analysis of variance with the data from all the locations were performed for each variable. Significant differences were observed among locations, genotypes, and the genotype-by-environment interaction for all variables studied. From the combined analysis, two sister lines derived from the cross Sokoll/Weebil 1 (genotypes 25 and 23) showed better average yields than the best check, by 7.9 and 6%, respectively, and a tendency to interact positively with environments. Their good performance can be explained, at least partially, by their outstanding TKW. Similarly, line 4 (JNRB.5/PIFED/5/BJY/COC//PRL/BOW/3/SARA/THB//VEE/4/PIFED) deserves special attention for its tendency to outyield the checks in Sonora and Sinaloa, environments characterized this season by exceptional heat stress. Its good performance seems to be associated with maintaining good values of biomass and thousand kernel weight and this type of material could be more valuable in the future, as global warming increases.
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