Understanding effects of genotype × environment × sowing window interactions for durum wheat in the Mediterranean basin

Padovan, Gloria; Martre, Pierre; Semenov, Mikhail A.; Masoni, Alberto; Bregaglio, Simone; Ventrella, Domenico; Lorite, Ignacio J.; Santos, C.; Bindi, Marco; Ferrise, Roberto; Dibari, Camilla

doi:10.1016/j.fcr.2020.107969

Cited by 18 publications

(4 citation statements)

References 69 publications

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“…The mean grain yield recorded under early and timely sown conditions was 68.65 and 59.17 q ha − 1 , respectively. The early sowing of wheat allows proper filling and development of grains prior to the exposure of crop to terminal heat stress, which otherwise cause shortening the heading and maturity duration (Jat et al, 2018 ; Padovan et al, 2020 ). In early sowing, anthesis and filling stages of wheat are advanced, thereby allowing the grains filling under optimum temperature for a longer period.…”

Section: Resultsmentioning

confidence: 99%

Advancing Sowing Time and Conservation Tillage - The Climate-Resilient Approach to Enhance the Productivity and Profitability of Wheat

Chhokar

Sharma²,

Kumar³

et al. 2022

Int. J. Plant Prod.

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Field experiments consisting of two sowing time (early and timely), two tillage options (conventional tillage and conservation tillage) and ten genotypes were conducted with the aim to maximize the wheat productivity and profitability. The early sowing (second fortnight of October) produced 16.0% higher grain yield compared to timely sowing (mid-November) in northern Indian Plains. However, no significant yield differences were observed between conventional tillage (CT) and conservation tillage (CST) practices. Among genotypes, the better yielders were PBW 723, BISA 927 and HD 2967. The interaction of sowing time and genotype had a significant (p < 0.05) effect on wheat yield. However, the interaction of genotype and tillage did not produce any significant response on wheat yield. The experiments conducted at farmer’s fields also demonstrated similar performance of wheat under CT and CST systems but CST offered the savings of more than Rs. 3500 (US $ 47) along with 125 kg ha − 1 lesser CO 2 emissions over CT due to reduction in fuel consumption associated with tillage and seed bed operations. At farmers field also, early sown wheat yielded 5.5% higher over wheat sown in November. The results of present studies show that early sowing of high yielding wheat genotypes under CST practice enhanced the productivity and profitability of wheat under rice-wheat cropping system along with lesser noxious impact on the environment. Amidst climate vagary and its menace on the agriculture, the adoption of climate-resilient management practices such as advancing the sowing time and conservation tillage can improve the productivity of long duration wheat cultivars in sub-tropical humid conditions besides lesser deleterious consequences on the environment.

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Section: Resultsmentioning

confidence: 99%

Advancing Sowing Time and Conservation Tillage - The Climate-Resilient Approach to Enhance the Productivity and Profitability of Wheat

Chhokar

Sharma²,

Kumar³

et al. 2022

Int. J. Plant Prod.

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“…Process-based crop growth models were developed to study the multiple interacting factors affecting crop growth, development, and yield formation under field conditions ( Chenu et al , 2017 ). By representing the interactions between genotype, environment, and management, crop models are useful tools to identify options to improve resource use efficiency in cropping systems and narrow yield gaps ( Xin and Tao, 2019 ; Padovan et al , 2020 ). Crop models are also used to evaluate the impact of climate change on wheat production ( Ye et al , 2020 ) and test genetic and management adaptation pathways to maintain or increase productivity ( Challinor et al, 2007 , 2014 ; Gouache et al , 2012 ; Ruiz-Ramos et al 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Simulation of winter wheat response to variable sowing dates and densities in a high-yielding environment

Dueri

Brown

Asseng

et al. 2022

Journal of Experimental Botany

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Crop multi-model ensembles (MME) have proven to be effective in increasing the accuracy of simulations in modelling experiments. However, the ability of a MME to capture crop response to changes in sowing dates and densities has not yet been investigated. These management interventions are some of the main levers for adapting cropping systems to climate change. Here, we explore the performance of a MME of 29 wheat crop models to predict the effect of changing sowing dates and rates on yield and yield components, on two sites located in a high-yielding environment in New Zealand. The experiment was conducted for 6 years and provided 50 combinations of sowing date, sowing density and growing season.”. We show that the MME simulates seasonal growth of wheat well under standard sowing conditions, but fails under early sowing and high sowing rates. The comparison between observed and simulated in-season fraction of intercepted photosynthetically active radiation (FIPAR) for early sown wheat shows that the MME does not capture the decrease of crop above ground biomass during winter months due to senescence. Models need to better account for tiller competition for light, nutrients and water during vegetative growth, and early tiller senescence and tiller mortality, which are exacerbated by early sowing, high sowing densities and warmer winter temperatures.

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“…Fifty percent of total human calories are supported by cereal crops, and durum wheat ( Triticum turgidum L. subsp. durum ) is among the most important crops in the Mediterranean basin ( Padovan et al, 2020 ). Moreover, global demand for food, feedstock, and biofuel due to the growing world population is expected to double by 2050; therefore, improving crop yield for tackling the future demand is the main challenge in the next decades ( Rathore et al, 2017 ).…”

Section: Introductionmentioning

confidence: 99%

Nitrogen Use Efficiency in Durum Wheat Under Different Nitrogen and Water Regimes in the Mediterranean Basin

et al. 2021

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Improving nitrogen use efficiency (NUE) represents one of the main goals to reduce N input in maximizing crop yield for sustainable agriculture. A NUE key strategy is the exploitation of genetic variation in available germplasm together with the understanding of molecular mechanisms governing this complex trait. Thus, NUE, its components, nitrogen uptake efficiency (NUpE) and nitrogen utilization efficiency (NUtE), and NUE-related traits heritability were evaluated in ancient (Cappelli, Capeiti, Russello, and Mazzancoio) and modern (Messapia, Tiziana, Svevo, and Normanno) wheat genotypes for tackling nitrogen (N) and/or water limitation in both growth chamber and field experiments. Our results exhibited a reduction of NUE, NUpE, and NUtE under water and combined (nitrogen + water) stress in all the genotypes, as expected. The contribution of genetic variability on phenotypic variation was significant for NUtE, harvest index, post-anthesis nitrogen uptake (PANU), and biomass production traits. Moreover, the stress tolerance indexes, calculated and bi-plotted for N and water stresses, exhibited two distinct clusters for many traits as then confirmed by principal component analysis. Although modern varieties showed higher crop yield and NUE under conventional N and water regimes, ancient varieties exhibited best performances to cope with both stresses, mainly under water limitation. Finally, the usage index, which takes into account total biomass increase, underlined that old genotypes were less affected by both stresses during crop cycle. In particular, these genotypes showed the best performances for NUE and its components under both stresses at stem elongation and milk ripening as shown also by PANU. In addition, at these stages, nitrate and ammonium transporter gene expressions in the root were performed, showing the highest activity in ancient varieties. In conclusion, the identification of NUE traits during a specific crop cycle stage, under both N and water limitation, will help in the breeding of more resilient varieties in Mediterranean sustainable agriculture by reducing N supply.

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Understanding effects of genotype × environment × sowing window interactions for durum wheat in the Mediterranean basin

Cited by 18 publications

References 69 publications

Advancing Sowing Time and Conservation Tillage - The Climate-Resilient Approach to Enhance the Productivity and Profitability of Wheat

Advancing Sowing Time and Conservation Tillage - The Climate-Resilient Approach to Enhance the Productivity and Profitability of Wheat

Simulation of winter wheat response to variable sowing dates and densities in a high-yielding environment

Nitrogen Use Efficiency in Durum Wheat Under Different Nitrogen and Water Regimes in the Mediterranean Basin

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