Grain weight and grain number responsiveness to pre-anthesis temperature in wheat, barley and triticale

Ugarte, Cristina Cecilia; Calderini, Daniel F.; Slafer, Gustavo A.

doi:10.1016/j.fcr.2006.07.010

Cited by 254 publications

(192 citation statements)

References 40 publications

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“…Literature showed that flowering time is generally earlier in barley than in wheat (Fischer and Wood, 1979;Miralles and Richards, 2000;Cossani et al, 2009Cossani et al, , 2011. For the grain-filling period, the scenario is less certain: there are studies where barley grain filling was sometimes shorter than (López-Castañeda and Richards, 1994;Ugarte et al, 2007), or similar to (Fischer and Wood, 1979;Lingle and Chevalier, 1985;Ugarte et al, 2007) that of wheat. As far as we know, there is little information concerning differences between wheat and barley in the length of the period between physiological and commercial maturity.…”

Section: Introductionmentioning

confidence: 99%

Comparative behavior of wheat and barley associated with field release and grain weight determination

Prado

Gallardo

Serrago

et al. 2013

Field Crops Research

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a b s t r a c t Double-cropping using the wheat-soybean sequence is a common practice in Argentina to promote the intensification of crops within rotations. However, the late release of the fields by a delayed harvest time in wheat determines soybean yield penalizations. In this context, barley could represent a better option than wheat preceding soybean in the crop rotation since there is some evidence that finishes its cycle earlier than wheat. However, it is not clear which period of barley shortens crop cycle allowing an earlier field release than wheat. The objectives of this study were to compare wheat and barley in terms of (i) field release and (ii) grain weight determination through the analysis of their physiological mechanisms. Field experiments during two consecutive growing seasons testing five different environments (three sowing dates in 2007 and two in 2008) were carried out to analyze the duration of different ontogenic periods and the attributes (dry matter and water dynamics) determining grain weight during the grainfilling period in wheat and barley. Early flowering time was the main cause of the early field release by barley as the grain filling and drying period were similar in both species. A strong relationship was found between dry matter and water dynamics in both species. Barley reached a higher maximum water content than wheat and also achieved physiological maturity with higher moisture concentration than wheat (48% and 39%, respectively). Barley showed a slight increase in grain weight, respect to wheat, due to a source:sink ratio enhancement (4% and 9% for wheat and barley, respectively). These data show an opposite response to that of Mediterranean, Australian and UK environments, where barley was under stronger sink limitation than wheat during the grain-filling period.

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Section: Introductionmentioning

confidence: 99%

Comparative behavior of wheat and barley associated with field release and grain weight determination

Prado

Gallardo

Serrago

et al. 2013

Field Crops Research

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show abstract

“…Wheat, barley and a triticale cultivar were evaluated in three season under three thermal condition: control and two timing of heating before anthesis and found stem elongation stage is most sensitive to high temperature stress (yield reduction 46%) Ugarte et al (2007) Hungary Wheat 'GK-Elet' and 'Mv-Emese' Pot culture experiment in growth chamber indicated that 'MvEmese'was good drought stress tolerance than GK-Elet Lukacs et al (2008) Bulgaria Two drought tolerant wheat ('Katya' 'Zlatitza') and two sensitive 'Sadovo' and 'Miziya')…”

Section: Introductionmentioning

confidence: 99%

Phenology, Growth and Yield of Three Wheat (Triticum aestivum L.) Varieties as Affected by High Temperature Stress

Hossain

Silva

2012

Not Sci Biol

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Wheat is the most important cereal in the world. However, due to an increasing trend of rising temperatures around the world, wheat may be exposed to greater thermal stress in the near future. Therefore, the identification and development of suitable wheat varieties is an important step to resolve this threat to production and to achieve high yield, even under high temperature stress. In this context, phenology, growth and yield of three elite varieties of wheat ('Gourab' , 'BARI Gom-25' and 'BARI Gom-26') were evaluated under two sowing conditions: optimum (sown on November 15) and late heat stress condition (sown on December 27). All wheat varieties, when sown late, faced severe temperature stress that significantly affected phenology, growth and finally yield. Taking into consideration phenological variation, dry matter (fresh and dry weight) partitioning and grain yield, variety 'BARI Gom-26' performed better both in optimum and late heat stress, followed by 'BARI Gom-25'; 'Gourab' performed the least. On the basis of heat tolerance parameters [relative performance (RP) and heat susceptibility index (HSI)], 'BARI Gom-25' (RP-79%; HSI-0.7) was the best performing variety followed by 'BARI Gom-26' (RP-74%; HSI-0.9) under heat stress while 'Gourab' (RP-61%; HSI-1.3) was sensitive to heat.

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“…The reduction in the optimum growth period caused by a rise in temperature leads to leaf senescence resulting in a photosynthetic rate that is too low to meet plant C economy (Hensel et al, 1993;Sharma-Natu et al, 2006). As a result, it affects two important yield parameters, i.e., the number of grains per spike and grain weight (Ugarte et al, 2007).…”

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confidence: 99%

Performance of Late Sown Wheat in Response to Foliar Application of Moringa oleifera Lam. Leaf Extract

Yasmeen

Basra

Ahmad

et al. 2012

Chilean J. Agric. Res.

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A rise in temperature during early spring inducing early maturity is a key yield-reducing factor in late sown wheat (Triticum aestivum L.). Moringa oleifera Lam. leaves are rich in zeatin, a cytokinin that plays a role in delaying leaf senescence, in addition to other growth-enhancing compounds such as ascorbates, phenolics, and minerals. The objective of this study was to optimize dose and optimum growth stage for foliar-applied moringa leaf extract (MLE) and its role in delaying leaf senescence in late sown wheat. The wheat crop was sown on 16 December 2008; MLE (diluted 30 times) was applied at different growth stages from tillering to heading and heading alone and distilled water was sprayed as a control. All the MLE treatment results were better than the control. However, an increase of 10.73%, 6.00%, 10.70%, and 4.00% was evident in 1000 grain weight, biological yield, grain yield, and harvest index, respectively, with MLE spray at tillering + jointing + booting + heading. The MLE spray used only at heading gave 6.84%, 3.17%, 6.80%, and 3.51% more than the control 1000 grain weight, biological yield, grain yield, and harvest index, respectively. The MLE extended seasonal leaf area duration (Seasonal LAD) by 9.22 and 6.45 d over the control when applied at all growth stages and a single spray at heading, respectively. We conclude that it is possible that the presence of growth-promoting substances in MLE foliar spray can delay crop maturity and extend seasonal LAD and the grain-filling period, thereby leading to greater seed and biological yields in late sown wheat.

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Grain weight and grain number responsiveness to pre-anthesis temperature in wheat, barley and triticale

Cited by 254 publications

References 40 publications

Comparative behavior of wheat and barley associated with field release and grain weight determination

Comparative behavior of wheat and barley associated with field release and grain weight determination

Phenology, Growth and Yield of Three Wheat (Triticum aestivum L.) Varieties as Affected by High Temperature Stress

Performance of Late Sown Wheat in Response to Foliar Application of Moringa oleifera Lam. Leaf Extract

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