scholarly journals Grain yield and correlated traits of bread wheat lines: Implications for yield improvement

2021 ◽  
Author(s):  
Muhammad Irfan Ullah ◽  
Shahzadi Mahpara ◽  
Rehana Bibi ◽  
Rahmat Ullah Shah ◽  
Rehmat Ullah ◽  
...  
Keyword(s):  
Grain Yield ◽  
Bread Wheat ◽  
Yield Improvement ◽  
Correlated Traits ◽  
Wheat Lines

scholarly journals Expected genetic gains from mono trait and indexbased selection in advanced bread wheat (Triticum aestivum L.) populations

2020 ◽  
Vol 73 (2) ◽  
pp. 9131-9141
Author(s):  
Zine El Abidine Fellahi ◽  
Abderrahmane Hannachi ◽  
Hamenna Bouzerzour
Keyword(s):  
Grain Yield ◽  
Bread Wheat ◽  
Flag Leaf ◽  
Block Design ◽  
Triticum Aestivum L ◽  
Research Unit ◽  
Kernel Weight ◽  
Wide Range ◽  
Wheat Lines ◽  
Selection Of

This study aimed at evaluating the expected gains from selection obtained based upon direct, indirect, and index-based selection in a set of 599 bread wheat lines. The experiment was carried out at the experimental field of INRAA institute, Setif research unit (Algeria), in a Federer augmented block design including three controls. A wide range of genetic variability was observed among lines for the eleven traits assessed. The results indicated that index-based selection and selection based on grain yield expressed higher expected genetic gain than direct and indirect mono-trait-based selection. The best 15 selected lines exhibited higher grain yield than the control varieties, and they were clustered in three groups that contrasted mainly for the flag-leaf area, thousand-kernel weight, biomass, and harvest index. The index-based selection appears as a useful tool for the rapid selection of early filial generations, enriching selected breeding materials with desirable alleles and reducing the number of years required to combine these traits in elite varieties.

scholarly journals Evaluation of advanced bread wheat lines for yield components during season 2019-2020

2021 ◽  
Vol 2 (3) ◽  
pp. 4652-4662
Author(s):  
José Luis Félix-Fuentes ◽  
Guillermo Fuentes-Dávila ◽  
Ivón Alejandra Rosas-Jáuregui ◽  
Juan Manuel Cortés-Jiménez ◽  
Alma Angélica Ortiz-Avalos ◽  
...  
Keyword(s):  
Grain Yield ◽  
Bread Wheat ◽  
Sowing Date ◽  
Grain Weight ◽  
Thousand Grain Weight ◽  
Grain Length ◽  
Spike Number ◽  
Para Determinar ◽  
Third Line ◽  
Wheat Lines

ABSTRACT A study was conducted with seven advanced bread wheat lines to determine grain yield, a thousand grain weight, grain length, grain weight per spike, number of grains per spike, spike length and spike weight, at the Norman E. Borlaug Experimental Station in the Yaqui Valley, Sonora, Mexico, during the 2019-2020 crop season. Plots were 100 m long on three beds, 0.80 m apart, with two rows, and three replications; seed density was 100 kg/ha. Sowing date was December 14, 2019. Experimental lines were generated by the Global Wheat Program from the International Maize and Wheat Improvement Center, and they are candidates for commercial release by the National Institute for Forestry, Agriculture, and Livestock Research in Mexico. Genotypes BORL14*2/5/ATTILA/3*BCN*2//BAV92/3/ KIRITATI/WBLL1/4/DANPHE,   BORL14*2//MUNAL#1/FRANCOLIN#1, and PREMIO /4/CROC_1/AE.SQUARROSA(205)//KAUZ/3/PIFED/5/BORL14, showed the highest grain yield with 7.1, 7, and 6.9 t/ha, respectively, which can compete with current bread wheat cultivars in southern Sonora, Mexico, like Borlaug 100. The third line also showed the highest a thousand grain weight, grain length, grain weight per spike, and spike weight.   RESUMEN Se realizó un estudio con siete líneas avanzadas de trigo pan para determinar el rendimiento de grano, peso de mil granos, longitud de grano, peso de grano por espiga, número de granos por espiga, longitud de espiga y peso de espiga, en la Estación Experimental Norman E. Borlaug en el Valle del Yaqui, Sonora, México, durante la temporada de cultivo 2019-2020. Las parcelas tuvieron una longitud de 100 m en tres camas, separadas 0.80 m, con dos hileras y tres repeticiones; la densidad de semilla fue de 100 kg/ha. La fecha de siembra fue el 14 de diciembre de 2019. Las líneas experimentales fueron generadas por el Programa Global de Trigo del Centro Internacional de Mejoramiento de Maíz y Trigo, y son candidatas a ser liberadas comercialmente por el Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias de México. Los genotipos BORL14*2/5/ATTILA/3*BCN*2//BAV92/3/ KIRITATI/WBLL1/4/DANPHE, BORL14*2//MUNAL#1/FRANCOLIN#1, y PREMIO /4/CROC_1/AE.SQUARROSA(205)//KAUZ/3/PIFED/5/BORL14, mostraron el mayor rendimiento de grano con 7. 1, 7 y 6.9 t/ha, respectivamente, que pueden competir con los cultivares actuales de trigo pan en el sur de Sonora, México, como Borlaug 100. La tercera línea también mostró el mayor peso de mil granos, longitud de grano, peso de grano por espiga y peso de espiga.

Exogenous sodium nitroprusside increases antioxidative potential and grain yield of bread wheat exposed to cadmium

2018 ◽  
Vol 51 (2) ◽  
Author(s):  
Muhammad Arshad ◽  
Muhammad Iqbal ◽  
Muhammad Yasin Ashraf ◽  
Qasim Ali ◽  
Naeem Iqbal
Keyword(s):  
Grain Yield ◽  
Sodium Nitroprusside ◽  
Bread Wheat

Relation of Rubisco to Maize Grain Yield Improvement: Effect of Water Restriction

Crop Science ◽  
1992 ◽  
Vol 32 (3) ◽  
pp. 718-722 ◽  
Author(s):  
E. Martínez‐Barajas ◽  
C. Villanueva‐Verduzco ◽  
J. Molina‐Galán ◽  
H. Loza‐Tavera ◽  
E. Sánchez‐de‐Jiménez
Keyword(s):  
Grain Yield ◽  
Water Restriction ◽  
Yield Improvement ◽  
Maize Grain Yield ◽  
Effect Of Water ◽  
Improvement Effect ◽  
Maize Grain

scholarly journals Stress-induced expression of IPT gene in transgenic wheat reduces grain yield penalty under drought

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Ailin Beznec ◽  
Paula Faccio ◽  
Daniel J. Miralles ◽  
Leonor G. Abeledo ◽  
Cecilia Decima Oneto ◽  
...  
Keyword(s):  
Grain Yield ◽  
Bread Wheat ◽  
Transcriptional Control ◽  
Field Conditions ◽  
Wild Type ◽  
Ipt Gene ◽  
Receptor Like Kinase ◽  
Biomass Components ◽  
Yield Penalty ◽  
Wild Type Control

Abstract Background The heterologous expression of isopentenyl transferase (IPT) under the transcriptional control of the senescence-associated receptor-like kinase (SARK) promoter delayed cellular senescence and, through it, increased drought tolerance in plants. To evaluate the effect of pSARK::IPT expression in bread wheat, six independent transgenic events were obtained through the biolistic method and evaluated transgene expression, phenology, grain yield and physiological biomass components in plants grown under both drought and well-irrigating conditions. Experiments were performed at different levels: (i) pots and (ii) microplots inside a biosafety greenhouse, as well as under (iii) field conditions. Results Two transgenic events, called TR1 and TR4, outperformed the wild-type control under drought conditions. Transgenic plants showed higher yield under both greenhouse and field conditions, which was positively correlated to grain number (given by more spikes and grains per spike) than wild type. Interestingly, this yield advantage of the transgenic events was observed under both drought and well-watered conditions. Conclusions The results obtained allow us to conclude that the SARK promoter-regulated expression of the IPT gene in bread wheat not only reduced the yield penalty produced by water stress but also led to improved productivity under well-watered conditions.

scholarly journals Nutrient uptake, use efficiency and productivity of bread wheat (Triticum aestivum L.) as affected by nitrogen and potassium fertilizer in Keddida Gamela Woreda, Southern Ethiopia

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Temesgen Godebo ◽  
Fanuel Laekemariam ◽  
Gobeze Loha
Keyword(s):  
Triticum Aestivum ◽  
Grain Yield ◽  
Nutrient Uptake ◽  
Bread Wheat ◽  
Block Design ◽  
N Uptake ◽  
Fertilizer Application ◽  
Southern Ethiopia ◽  
K Fertilizer ◽  
Use Efficiency

AbstractBread wheat (Triticum aestivum L.) is one of the most important cereal crops in Ethiopia. The productivity of wheat is markedly constrained by nutrient depletion and inadequate fertilizer application. The experiment was conducted to study the effect of nitrogen (N) and potassium (K) fertilizer rates on growth, yield, nutrient uptake and use efficiency during 2019 cropping season on Kedida Gamela Woreda, Kembata Tembaro Zone Southern Ethiopia. Factorial combinations of four rates of N (0, 23, 46 and 69 kg Nha−1) and three rates of K2O (0, 30 and 60 kg Nha−1) in the form of urea (46–0-0) and murate of potash (KCl) (0-0-60) respectively, were laid out in a randomized complete block design with three replications. The results showed that most parameters viz yield, yield components, N uptake and use efficiency revealed significant differences (P < 0.05) due to interaction effects of N and K. Fertilizer application at the rate of 46 N and 30 kg K ha−1 resulted in high grain yield of 4392 kg ha− 1 and the lowest 1041 from control. The highest agronomic efficiency of N (52.5) obtained from the application of 46 kg N ha−1. Maximum physiological efficiency of N (86.6 kg kg−1) and use efficiency of K (58.6%) was recorded from the interaction of 46 and 30 kg K ha−1. Hence, it could be concluded that applying 46 and 30 kg K ha−1was resulted in high grain yield and economic return to wheat growing farmers of the area. Yet, in order to draw sound conclusion, repeating the experiment in over seasons and locations is recommended.

A multi-environment trial analysis shows slight grain yield improvement in Texas commercial maize

2013 ◽  
Vol 149 ◽  
pp. 167-176 ◽  
Author(s):  
Ivan D. Barrero Farfan ◽  
Seth C. Murray ◽  
Stephen Labar ◽  
Dennis Pietsch
Keyword(s):  
Grain Yield ◽  
Yield Improvement ◽  
Trial Analysis
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