The dwarfing effect of a single application of growth inhibitors to the root-stem connection—“the collar tissue”—of five species of fruit trees

Grochowska, Maria; Hodun, M.

doi:10.1080/14620316.1997.11515494

Cited by 11 publications

(6 citation statements)

References 1 publication

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“…Tree volume was reduced due to the fact that paclobutrazol decreased tree height and shoot number, which ultimately contribute in reduction of volume. This is in conformity with Grochowska and Houdun (1997). The gibberellic acid almost changed the effect of paclobutrazol and increased significantly the yearly increment in tree volume.…”

Section: Resultssupporting

confidence: 80%

Carry-Over Effect of Paclobutrazol on Vegetative Parameters of Sweet Cherry

Wani¹,

Bhat²,

Rashid

et al. 2011

International Journal of Fruit Science

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Carry-over effects of paclobutrazol on various vegetative parameters of sweet cherry were studied. Paclobutrazol was applied on the basin of the trees as per trunk diameter during early spring and gibberellic acid was sprayed at full bloom. The treatment application was carried out during the first year only to assess carry-over effect during the next year. Trunk cross-sectional area, tree height and spread, tree volume, number of nodes on a linear shoot, and internode length decreased both in the year of treatment application and during the next year when no treatment was applied. Lowest increment in trunk cross-sectional area (3.37 cm),tree height (0.21 m), tree spread (0.17 m), and tree volume (3.33 m 3 ) during the carry-over year were recorded with the maximum concentration of paclobutrazol (0.3 g/cm). Maximum number of nodes (8.67) and shorter intermodal length (2.33 cm) were observed with 0.2 g/cm TD PBZ treatment, both of which are desirable parameters for better fruit set.

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Section: Resultssupporting

confidence: 80%

Carry-Over Effect of Paclobutrazol on Vegetative Parameters of Sweet Cherry

Wani¹,

Bhat²,

Rashid

et al. 2011

International Journal of Fruit Science

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“…Increased effectiveness of reduced doses of P, when applied with TIBA to plum and sour cherry trees, fits with a proposed model which says that stem elongation is inversely related to the amount of growth regulator applied (Gent, 1997). It was not applicable, however, to potted fruit trees (Grochowska and Hodun, 1997).…”

Section: Discussionmentioning

confidence: 79%

“…The same retardants applied to the mid-stem, affected neither shoot growth nor fruiting or flowering of four of the five species. The most responsive to treatments were, in decreasing order: plum, sour cherry, sweet cherry, apricot and peach (Grochowska and Karaszewska, 1989;Grochowska and Hodun, 1997). Treatments with TIBA in lanolin to the collar of one year old apple seedlings 'Antonowka' reduced by at least half, the distance of basipetal transport of 14 C-labelled IAA which has been applied at the apex of the plants.…”

mentioning

confidence: 98%

Improving productivity of four fruit species by growth regulators applied once in ultra-low doses to the collar

Grochowska

Hodun

Mika

2004

The Journal of Horticultural Science and Biotechnology

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“…The determination of exogenous and endogenous auxin concentrations by Kinet showed that a low concentration of IAA was necessary for flower bud differentiation, while a high concentra-tion of IAA inhibited flower bud differentiation [67]. The IAA transport inhibitors ethephon (CEPA), o-aminocarbonylbenzoic acid (NPA) and triiodobenzoic acid (TIBA) can reduce the shoot tips and fruit output of IAA and promote flower bud differentiation, which indirectly proves that high levels of IAA are involved in inhibiting flower bud differentiation [68]. When Malus pumila was sprayed with IAA, the proportion of short branches decreased, the flowering rate decreased, the contents of endogenous IAA and GA in buds increased significantly, the contents of ABA and ZT decreased significantly, the expression of AFL1 was downregulated, and the expression of MdTFL1 was upregulated [69].…”

Section: Discussionmentioning

confidence: 95%

The Combined Analysis of the Transcriptome and Metabolome Revealed the Possible Mechanism of Flower Bud Formation in Amorphophallus bulbifer

Li,

Xu,

Qian

et al. 2024

Agronomy

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The flowering of Amorphophallus bulbifer (A. bulbifer) plays an important role in its reproduction. The flowers and leaves of A. bulbifer cannot grow at the same time. However, the physiological and molecular mechanisms involved in flower bud and leaf bud formation are still unclear. In this study, the flower buds and leaf buds of A. bulbifer in the early stage of growth were used as research materials, transcriptome and metabolome analyses were carried out, and the soluble sugar and starch contents of A. bulbifer corms were determined. Transcriptome analysis revealed 5542 differentially expressed genes (DEGs) between flower buds and leaf buds, 3107 of which were upregulated and 2435 of which were downregulated. Enrichment analysis of the KEGG pathway showed that these differential genes were enriched mainly in the plant hormone signal transduction, DNA replication and fatty acid elongation pathways. A total of 5296 significant differentially abundant metabolites were screened out by nontargeted metabolomics analysis. The differentially abundant metabolites were functionally classified in the HMDB, and 118 were successfully matched, including 17 that were highly expressed in flower buds. The differentially abundant metabolites in the flower buds were mainly enriched in pathways such as amino acid metabolism, isoquinoline alkaloid biosynthesis and pyrimidine metabolism. Targeted metabolomics analysis revealed that the contents of ABA, ZT and iPA in flower buds were significantly greater than those in leaf buds, while the opposite trend was observed for IAA. The analysis of soluble sugar and starch contents showed that the starch and soluble sugar contents in flower buds were significantly greater than those in leaf buds. The results of this study showed that flower bud development in A. bulbifer was regulated by amino acids, starch, ABA, ZT, iPA, IAA and other hormones. These findings could lead to valuable genetic resources for further study of A. bulbifer flowering and provide a deeper understanding of the molecular basis of A. bulbifer flowering.

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The dwarfing effect of a single application of growth inhibitors to the root-stem connection—“the collar tissue”—of five species of fruit trees

Cited by 11 publications

References 1 publication

Carry-Over Effect of Paclobutrazol on Vegetative Parameters of Sweet Cherry

Carry-Over Effect of Paclobutrazol on Vegetative Parameters of Sweet Cherry

Improving productivity of four fruit species by growth regulators applied once in ultra-low doses to the collar

The Combined Analysis of the Transcriptome and Metabolome Revealed the Possible Mechanism of Flower Bud Formation in Amorphophallus bulbifer

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