The effects of paclobutrazol on growth and the movement of<sup>14</sup>C-labelled assimilates in ‘Red Delicious’ apple seedlings

Hodairi, M.H. El; Canham, A. E.; Buckley, W. R.

doi:10.1080/14620316.1988.11515894

Cited by 7 publications

(1 citation statement)

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“…Paclobutrazol-treated wheat seedlings showed higher root fresh and dry weight and increased root:shoot ratio (Pinhero and Fletcher 1994). Using citrus (Mauk et al 1986) and apple seedlings (El Hodairi et al 1988 paclobutrazol treatment caused basipetal transport of assimilates. These results suggest that altered GA levels resulting from GA 3 and paclobutrazol treatment cause different allocation patterns in plants.…”

Section: Figmentioning

confidence: 99%

Growth Responses and Allocation of Assimilates of Rice Seedlings by Paclobutrazol and Gibberellin Treatment

Yim

Kwon

Bayer

1997

J Plant Growth Regul

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Paclobutrazol [(2RS,3RS)-1-(4-chlorophenyl)methyl-4,4-dimethyl-2-(1h-1,2,4-trizol-1-yl)penten-3-ol] effectively decreased vegetative growth of rice (Oryza sativa L.) seedlings and increased the chlorophyll content. The number of veins in a leaf, the calculated number of stomata per leaf, and the length of guard cells were not altered by the paclobutrazol treatment, suggesting an effect on cell elongation. The allocation pattern of carbohydrates was changed by either gibberellin (GA) or paclobutrazol treatment. GA 3 induced more shoot growth and less accumulation of starch than the control and paclobutrazol-treated seedlings. Photosynthetic ability was not affected by either paclobutrazol or GA 3 treatment. Paclobutrazol-treated plants allocated a smaller amount of photosynthates for vegetative shoot growth and stored more as starch in the crowns than the control and GA 3 -treated plants. The same starch degrading activity in the crown tissue of paclobutrazol-treated seedlings as in control plants suggests that the accumulated starch is utilized in a normal activity for growth including leaf emergence, tiller formation, and root production, resulting in improved seedling quality.

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Section: Figmentioning

confidence: 99%

Growth Responses and Allocation of Assimilates of Rice Seedlings by Paclobutrazol and Gibberellin Treatment

Yim

Kwon

Bayer

1997

J Plant Growth Regul

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Phytotoxic effects, regrowth, and 14C-sucrose translocation in Canada thistle treated with mefluidide, flurprimidol, and systemic herbicides

Tworkoski

Sterrett

1992

J Plant Growth Regul

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Abstract. Foliar applications of the plant growth regulators (PGRs) flurprimidol and mefluidide suppressed shoot elongation and regrowth and enhanced shoot injury caused by selected herbicides in Canada thistle (Cirsium arvense L.). Flurprimidol stimulated movement of 14C-sucrose from leaves to roots. However, the stimulation was nullified when glyphosate, chlorsulfuron, or clopyralid was applied to foliage 1 week after application of the PGR. Herbicide-induced root injury was not enhanced by PGR application but these PGRs may be useful in decreasing weed competition among crops not similarly inhibited.

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Chemical regulation of vegetative growth∗

Davis

Curry

Steffens

1991

Critical Reviews in Plant Sciences

147

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The effects of paclobutrazol on growth and the movement of¹⁴C-labelled assimilates in ‘Red Delicious’ apple seedlings

Cited by 7 publications

References 1 publication

Growth Responses and Allocation of Assimilates of Rice Seedlings by Paclobutrazol and Gibberellin Treatment

Growth Responses and Allocation of Assimilates of Rice Seedlings by Paclobutrazol and Gibberellin Treatment

Phytotoxic effects, regrowth, and 14C-sucrose translocation in Canada thistle treated with mefluidide, flurprimidol, and systemic herbicides

Chemical regulation of vegetative growth∗

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The effects of paclobutrazol on growth and the movement of14C-labelled assimilates in ‘Red Delicious’ apple seedlings

Cited by 7 publications

References 1 publication

Growth Responses and Allocation of Assimilates of Rice Seedlings by Paclobutrazol and Gibberellin Treatment

Growth Responses and Allocation of Assimilates of Rice Seedlings by Paclobutrazol and Gibberellin Treatment

Phytotoxic effects, regrowth, and 14C-sucrose translocation in Canada thistle treated with mefluidide, flurprimidol, and systemic herbicides

Chemical regulation of vegetative growth∗

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Resources

About

The effects of paclobutrazol on growth and the movement of¹⁴C-labelled assimilates in ‘Red Delicious’ apple seedlings