Growth regulators for cereal and oil crops on the basis of 2,3-dichloroisobutyric acid and chlormequat chloride and residue analyses of both agents in the grain of oat

Gans, Wolfgang; Beschow, Heidrun; Merbach, W.

doi:10.1002/1522-2624(200008)163:4<405::aid-jpln405>3.0.co;2-j

Cited by 8 publications

(4 citation statements)

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“…Literature dealing with the oat stem elongation responses to PGRs indicates considerable stem shortening following treatment with compounds including chlormequat chloride, 2,3-dichloroisobutyric acid (DciB), ethephon and trinexapac-ethyl (Table 1) (Tennenhouse and Lacroix 1972, Clark and Fedak 1977, Gendy and Höfner 1989, Pietola et al 1999, Gans et al 2000, Peltonen-Sainio et al 2003, White et al 2003. CCC and ethephon applied to oat prior to onset of stem elongation resulted in similar short-term reduction in stem elongation of main shoot and T1 and T2 tillers (Peltonen-Sainio et al 2003).…”

Section: Lodging -Stem Lengthmentioning

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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Section: Lodging -Stem Lengthmentioning

confidence: 99%

Plant growth regulators to manipulate oat stands

Rajala¹

2008

AFSci

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“…Many current B. napus cultivars are prone to lodging causing high yield losses (Islam and Evans 1994). Lodging could be decreased by reducing plant height which is often achieved in B. napus by applying chemical growth regulators (Gans et al 2000). This method is expensive and could also interfere with other endogenous plant hormones and metabolic processes (Rademacher 2000).…”

Section: General Introductionmentioning

confidence: 99%

“…Many current B. napus cultivars are prone to lodging and should lodging occur early in the crop season during flowering or siliques development, high yield losses could be anticipated (Islam and Evans 1994). Lodging could be decreased by reducing plant height which is often achieved in B. napus applying chemical growth regulators (Gans et al 2000). However, this could be counterproductive since growth regulators are also found to be interfering with other endogenous plant hormones and metabolic processes (Rademacher 2000).…”

Section: Introductionmentioning

confidence: 99%

“…However, this could be counterproductive since growth regulators are also found to be interfering with other endogenous plant hormones and metabolic processes (Rademacher 2000). Furthermore, success with growth regulators on plant height depends on the time of application, and late applications may leave high amounts of chemical residues in the grain yields (Gans et al 2000). Two dwarf mutants; rapid cycling dwarf (Zanewich et al 1991) and bzh (Foisset et al 1995) have been identified in B. napus.…”

Section: Introductionmentioning

confidence: 99%

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