Yield formation of Central-European winter wheat cultivars on a large scale perspective

Rose, Till; Nagler, Sabrina; Kage, Henning

doi:10.1016/j.eja.2017.03.003

Cited by 12 publications

(11 citation statements)

References 35 publications

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“…Right after the BMY, the HI was the second most important trait for GY (Table ). In a study with nine modern German winter wheat cultivars, Rose, Nagler, and Kage () also observed a close association of GY with both, HI (adj. r 2 = 0.77) and BMY (adj.…”

Section: Discussionmentioning

confidence: 81%

“…In the current study, the HI averaged 0.47 (0.40-0.50) across the sixteen genotypes and twelve test environments. Rose et al (2017) reported similar average HI-values of 0.49 (0.45-0.52) for nine modern German winter wheats. There still seems to be considerable room left for further improvement of wheat grain yield before the postulated theoretical maximum for the HI of around 0.60 (Austin et al, 1980) is reached.…”

Section: Prospects For Further Yield Improvementmentioning

confidence: 81%

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Agronomic performance of winter wheat grown under highly divergent soil moisture conditions in rainfed and water‐managed environments

Schittenhelm

Kottmann

Kraft³

et al. 2018

J Agronomy Crop Science

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Even in the temperate climates of Europe, increasing early season drought and rising air temperature are presenting new challenges to farmers and wheat breeders. Sixteen winter wheat (Triticum aestivum L.) genotypes consisting of three hybrids, six line cultivars and two breeding lines from Germany as well as five line cultivars from France, Austria, Slovakia, Hungary and the Ukraine (referred to as “exotic” lines) have been included in this study. The genetic materials were evaluated over three growing seasons under a range of soil moisture regimes at the three North German sites Braunschweig (irrigated and drought‐stressed), Warmse (rainfed) and Söllingen (rainfed). The average grain yields in the twelve growth environments (water regime × season combinations) ranged from 6.1 to 13.5 t ha−1. The exotic lines showed little evidence of specific phenological adaptation to drought although they are frequently faced with water scarcity in their countries of origin. The hybrids and German lines exhibited higher regression coefficients (bi) to environmental means than the exotic lines, indicating particular adaptation to favourable growing conditions. The phenotypical correlations of grain yield between the various environments were high, ranging for instance from 0.6 to 0.8 for the irrigated and drought‐stressed environments at Braunschweig. It is thus expected that in the foreseeable future continued selection aiming at high yield potential will suffice as a means to counter the expected increase in droughts.

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Section: Discussionmentioning

confidence: 81%

Section: Prospects For Further Yield Improvementmentioning

confidence: 81%

Agronomic performance of winter wheat grown under highly divergent soil moisture conditions in rainfed and water‐managed environments

Schittenhelm

Kottmann

Kraft³

et al. 2018

J Agronomy Crop Science

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“… Kawano (1990) reported that in rice the total DM is more important under low yielding levels, while the HI has a more significant effect under high yielding levels. Moreover, Rose et al (2017) studied winter wheat production in Central Europe and found that while both HI and total DM are important in increasing yield, HI is more important. In our study, both total DM and HI were important under low yield levels, while HI was more important under high yield levels.…”

Section: Discussionmentioning

confidence: 99%

“…The physiological indicators of increased yield differ between different regions and productivity levels ( Papakosta and Gagianas, 1991 ; Rose et al, 2017 ). In the Mediterranean regions, yield is largely dependent on the translocation of pre-anthesis assimilates, with total DM at maturity generally <15,000 kg ha -1 ( Ercoli et al, 2008 ).…”

Section: Discussionmentioning

confidence: 99%

Approach to Higher Wheat Yield in the Huang-Huai Plain: Improving Post-anthesis Productivity to Increase Harvest Index

Duan

Zhou

et al. 2018

Front. Plant Sci.

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Both increased harvest index (HI) and increased dry matter (DM) are beneficial to yield; however, little is known about the priority of each under different yield levels. This paper aims to determine whether HI or DM is more important and identify the physiological attributes that act as indicators of increased yield. Two field experiments involving different cultivation patterns and water-nitrogen modes, respectively, were carried out from 2013 to 2016 in Huang-Huai Plain, China. Plant DM, leaf area index (LAI), and radiation interception (RI) were measured. Increased yield under low yield levels <7500 kg ha-1 was attributed to an increase in both total DM and HI, while increases under higher yield levels >7500 kg ha-1 were largely dependent on an increase in HI. Under high yield levels, HI showed a significant negative correlation with total DM and a parabolic relationship with net accumulation of DM during filling. Higher net accumulation of DM during filling helped slow down the decrease in HI, thereby maintaining a high value. Moreover, net DM accumulation during filling was positively correlated with yield, while post-anthesis accumulation showed a significant linear relationship with leaf area potential (LAP, R2 = 0.404–0.526) and radiation interception potential (RIP, R2 = 0.452–0.576) during grain filling. These findings suggest that the increase in LAP and RIP caused an increase in net DM accumulation after anthesis. Under DM levels >13,000 kg ha-1 at anthesis, maintaining higher LAI and RI in lower layers during grain formation contributed to higher yield. Furthermore, the ratio of upper- to lower-layer RI showed a second-order curve with yield during filling, with an increase in the optimal range with grain development. Pre-anthesis translocation amount, translocation ratios and contribution ratios also showed second-order curves under high yield levels, with optimal values of 3000–4500 kg ha-1, 25–35, and 30–50%, respectively. These results confirm the importance of HI in improving the yield, thereby providing a theoretical basis for wheat production in the Huang-Huai Plain.

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“…A high speed of canopy development is labeled “early-vigor”. Under Central-European growing conditions losses until canopy closure mainly occur during March and April, when the green area index ( GAI ) of the canopy is not sufficient for near total interception and in parallel usable incoming radiation occurs (Rose et al, 2017). A fast canopy development in this early phase can increase biomass production.…”

Section: Introductionmentioning

confidence: 99%

The Contribution of Functional Traits to the Breeding Progress of Central-European Winter Wheat Under Differing Crop Management Intensities

Rose

Kage

2019

Front. Plant Sci.

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Wheat yields in many of the main producing European countries stagnate since about 20 years. Hence, it is of high interest, to analyze breeding progress in terms of yield and how associated traits changed. Therefore, a set of 42 cultivars (released between 1966 and 2012) was selected and yield as well as functional traits defined by the Monteith and Moss equation were evaluated under three levels of management intensity. The Monteith Moss equation thereby calculates grain yield as the product of incident photosynthetically active radiation, fraction of intercepted radiation, radiation use efficiency, and harvest index. The field trial was performed in a high yielding environment in Northern Germany in two seasons (2016–2017 and 2017–2018) with very contrasting rainfall rates. The three differing managements were: intensive (high N + pesticides), semi-intensive (high N − pesticides), and extensive (low N − pesticides). The results indicate that the stagnation of wheat yields in Central-Europe is not caused by a diminishing effect of breeding on yield potential. This equally applies to suboptimal growing conditions like extensified crop management and restricted water supply. Nearly all functional sub-traits showed a parallel progress but coefficients of determination of relationships between traits and year of variety release are decreasing along the hierarchy of yield formation. One exception is radiation interception which did not show a stable linear increase during breeding history. In recent years, biomass is getting more important in comparison to harvest index. Values of harvest index are slowly approaching theoretical maxima and correlations with grain yield are decreasing.

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Yield formation of Central-European winter wheat cultivars on a large scale perspective

Cited by 12 publications

References 35 publications

Agronomic performance of winter wheat grown under highly divergent soil moisture conditions in rainfed and water‐managed environments

Agronomic performance of winter wheat grown under highly divergent soil moisture conditions in rainfed and water‐managed environments

Approach to Higher Wheat Yield in the Huang-Huai Plain: Improving Post-anthesis Productivity to Increase Harvest Index

The Contribution of Functional Traits to the Breeding Progress of Central-European Winter Wheat Under Differing Crop Management Intensities

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