The effect of nitrogen and growth regulators on stem and root characteristics associated with lodging in two cultivars of winter wheat

Crook, M. J.; Ennos, A. Roland

doi:10.1093/jxb/46.8.931

Cited by 109 publications

(53 citation statements)

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“…Excessive plant-available N produces wheat plants more prone to lodging and disease development, with subsequent reductions in grain yield and increased input costs. 31 The present results showed that grain protein content increases at N rates above those necessary to support maximum yield, in agreement with previous reports by Kelley. 32 Influence of N application rate on flour and noodle sheet color Flour color characteristics (L * , a * and b * ) were influenced by N rate (Fig.…”

Section: Resultssupporting

confidence: 93%

Influence of nitrogen fertilizer application rate on winter wheat (Triticum aestivum L.) flour quality and Chinese noodle quality

Guo

Wang

et al. 2009

J Sci Food Agric

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Section: Resultssupporting

confidence: 93%

Influence of nitrogen fertilizer application rate on winter wheat (Triticum aestivum L.) flour quality and Chinese noodle quality

Guo

Wang

et al. 2009

J Sci Food Agric

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“…Tillering improves cereal plasticity and the ability to respond to fluctuations in plant density and environment. Species, genotype, seeding rate, photoperiod, temperature, and water and nutrient status during the tillering period affect tiller production and head-bearing tillers (Langer 1972, Easson et al 1993, Peltonen-Sainio and Järvinen 1995, Crook and Ennos 1995. Spring wheat response to photoperiod was changed by antigibberellins applied at early growth stages (Hutley-Bull andSchwabe 1982, Craufurd andCartwright 1989).…”

Section: Tillering Tiller Growth and Productivitymentioning

confidence: 99%

Plant growth regulators to manipulate oat stands

Rajala¹

2008

AFSci

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Plant growth regulators (PGRs) are exogenously applied chemicals that alter plant metabolism, cell division, cell enlargement, growth and development by regulating plant hormones or other biological signals. For example, some PGRs regulate stem elongation by inhibiting biosynthesis of gibberellins or through releasing ethylene. PGR effects are widely studied and reported on barley (Hordeum vulgare L.) and wheat (Triticum aestivum L.), whereas there are only a few reports addressing oat (Avena sativa L.). This is likely to be a result of smaller acreage and lower intensity of oat management and production and hence a reduced need for stem shortening by PGRs. However, this is not the case for all cereal producing regions and there exists a need to understand the potential application of PGRs to oat production. This paper represents a review of the potential of PGRs to regulate stem elongation and other biological traits governing plant stand structure and yield components, with special emphasis on oat and its responses to PGRs. Yield improvement requires more heads per unit land area, more grains per head or heavier grains. Of these yield-determining parameters, the number of head bearing tillers and grain numbers per head, compared with grain weight, are more likely to be improved by PGR application. In the absence of lodging, PGR may reduce grain yield due to potential reduction in mean grain weight and/or grain number. Cultivation systems aiming at extensive yields with intensive use of inputs likely benefit from PGR applications more often compared with low or moderate input cultivation, for which cost effectiveness of PGRs is not frequently reached.

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“…These static equations predict a relative degree of susceptibility to anchorage failure and shoot failure, known as root and shoot lodging, respectively. According to Crook and Ennos (1995), lodging susceptibility in cereals depends on three factors: first, the size and dynamics of the forces to which the plant is subjected; second, the bending strength of the shoot and its resistance to buckling; and third, the anchorage strength of the root system. The model was adjusted for barley by Berry et al (2006).…”

Section: Resultsmentioning

confidence: 99%

Spring barley stand structure as an indicator of lodging risk

Matušinsky¹,

Svobodová²,

Míša³

2015

Zemdirbyste-Agriculture

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Field experiments were performed in Kroměříž, Czech Republic in 2012-2014 and evaluated for spring barley comprising treatments which different sowing rates and nitrogen fertilization rates. The objective of this study was to determine parameters of stand structure in early (BBCH 39) growth stages of barley that would enable evaluation of lodging risk. Lodging was significantly affected by both year and nitrogen fertilization rate. Increased nitrogen fertilization rates demonstrably increased lodging. Higher fertilization rates manifested in increased tiller biomass weight, greater plant height, and smaller roots. Similarly, the protein content of harvested grain was strongly affected by year and nitrogen application rate. Higher fertilization rates also resulted in grain with higher protein content. Sowing density did not affect either lodging level or protein content. Yields were affected only by year. Increased tiller biomass weight and increased plant height during early growth stages are significant indicators of lodging risk. Correlation between lodging and tiller biomass and plant height was higher than 0.5 and statistically significant (P = 0.000).

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The effect of nitrogen and growth regulators on stem and root characteristics associated with lodging in two cultivars of winter wheat

Cited by 109 publications

References 0 publications

Influence of nitrogen fertilizer application rate on winter wheat (Triticum aestivum L.) flour quality and Chinese noodle quality

Influence of nitrogen fertilizer application rate on winter wheat (Triticum aestivum L.) flour quality and Chinese noodle quality

Plant growth regulators to manipulate oat stands

Spring barley stand structure as an indicator of lodging risk

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