The Use of Paclobutrazol and Shading Net on Growth and Yield of Potato ‘Medians’ Tuber of G2 in Medium Land of Indonesia

Hamdani, Jajang Sauman; Nuraini, Anne; Mubarok, Syariful

doi:10.3923/ja.2018.62.67

Cited by 10 publications

(10 citation statements)

References 6 publications

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“…This alteration inhibits the synthesis of gibberellin induced by the action of PBZ, which directly interferes in the process of cell division, suppressing plant elongation(Desta & Amare, 2021;Tesfahun & Menzir, 2018). As a result, several species treated with PBZ tend to be shortened and have darker green leaves(Hamdani et al, 2018), as observed in this study. The reduction in plant height is the most expressive morphological result of PBZ application(Tesfahun, 2018), as it allows plants with high heights to be potted and sold as ornamentals.…”

supporting

confidence: 76%

Initial growth of Calendula officinalis L. plants treated with paclobutrazol

et al. 2022

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Calendula officinalis L. is largely used in composition in beds and like cutted flowers. On the other hand, the height (30 – 60 cm), difficult the cultivate and sales like potted plant, owing to the tipping of pots and for the disposition of plants on the tables. Paclobutrazol (PBZ) is a vegetal regulator that reduces the growth of plants. The purpose of this study was to evaluate the initial growth of C. officinalis L. treated with PBZ. The experiment was conducted in a greenhouse in the Floriculture Sector, of Agronomy Department, of Universidade Federal de Viçosa in October a November of 2020. The experiment was conducted in complety randomized desing and treatments were control, 2500, 5000, 7500 e 10000 ppm of PBZ doses with five repetitions. Two applications of PBZ doses were realized, being the first 15 days and the second 30 days after transplantation. Plant height, leaf area, stem length and diameter, root length, leaves number and photosynthetic pigments were quantified. PBZ, regardless of concentration, reduced plant heigth, leaf area, stem length, and diameter. Root length, leaves number and photossyntetic pigments did not significant among doses aplied. The initial growth of C. officinalis L. was reduced with PBZ doses.

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supporting

confidence: 76%

Initial growth of Calendula officinalis L. plants treated with paclobutrazol

et al. 2022

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“…The PBZ effectively suppresses growth in a wide range of plant species, where treated plants tend to be smaller and more compact in appearance and have darker green leaves [102][103][104][105]. Terri and Millie [106] and Sebastian et al [107] also reported that PBZ-treated plants tend to be dark green, shorter and more compact in appearance.…”

Section: Shoot Growthmentioning

confidence: 99%

Paclobutrazol as a plant growth regulator

Desta

Amare

2021

Chem. Biol. Technol. Agric.

195

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Plant growth regulators are chemical substances which govern all the factors of development and growth within plants. The application of plant growth regulators to crops modifies hormonal balance and growth leading to increased yield, enhanced crop tolerance against abiotic stress and improved physiological trait of crops. Paclobutrazol (PBZ) [(2RS, 3RS)-1-(4-chlorophenyl)- 4, 4-dimethyl-2-(1H-1, 2, 4-trizol-1-yl)-pentan-3-ol], is one of the members of triazole family having growth regulating property. The growth regulating properties of PBZ are mediated by changes in the levels of important plant hormones including the gibberellins (GAs), abscisic acid (ABA) and cytokinins (CK). PBZ affects the isoprenoid pathway, and alters the levels of plant hormones by inhibiting gibberellin synthesis and increasing cytokinins level and consequent reduction in stem elongation. When gibberellins synthesis is inhibited, more precursors in the terpenoid pathway accumulate and that resulted in the production of abscisic acid. PBZ is more effective when applied to the growing media and application on the growing medium would give longer absorption time and more absorption of active ingredient than foliar spray. The application of PBZ to crops is important in reducing plant height to prevent lodging and in increasing number and weight of fruits per tree, in improving the fruit quality in terms of increases in carbohydrates, TSS, TSS/TA and decreases acidity. It further reduces evapo-transpiration and decreases plant moisture stress by enhancing the relative water content of leaf area and develops resistance in the plants against biotic and abiotic stresses. In addition, it acts as highly active systemic fungicide and used against several economically important fungal diseases. In this review, the current knowledge and possible applications of PBZ, which can be used to improve the growth, yield and quality of crops, have been reviewed and discussed. The role of PBZ to mitigate the harmful effects of environmental stresses in crops is also examined. Moreover, various biochemical and physiological processes leading to improved crop production under the effect of PBZ are discoursed in detail.

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“…In agriculture, paclobutrazol is also used to inhibit plant height growth. This inhibition is usually aimed at preventing overcrowding of plants and increasing productivity such as rice (Barus et Jurnal Perbenihan Tanaman Hutan Vol.9 No2 Desember 2021: 119-130 p-ISSN : 2354-8568 e-ISSN : 2527-6565 126 al., 2018), potatoes (Hamdani et al, 2018), and cloves (Runtunuwu et al, 2011). In medicinal plant such as rodent tuber plant (Sianipar et al, 2019), Cynodon dactylon (L.)…”

Section: B Discussionmentioning

confidence: 99%

STORAGE OF TREMA (Trema orientalis Linn. Blume) SEEDLINGS IN NURSERIES AND THEIR EFFECT ON GROWTH

2021

J.Perbenihan.Tan.Hutan

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Trema (Trema orientalis Linn. Blume) adalah salah satu jenis tanaman hutan yang memiliki potensi untuk dimanfaatkan sebagai sumber bahan energi biomassa terbarukan. Keberhasilan pengembangan jenis ini sangat bergantung pada kualitas dan kuantitas bibitnya. Permasalahan yang sering terjadi adalah tertundanya bibit di persemaian karena menunggu kesiapan lahan dan musim penghujan tiba. Oleh karena itu, bibit perlu disimpan dengan menghambat pertumbuhannya selama penyimpanan. Tujuan penelitian adalah mengkaji respon pertumbuhan semai trema terhadap perlakuan bahan penghambat tumbuh dan naungan selama penyimpanan di persemaian dan penanaman di lapangan. Metoda pertumbuhan lambat digunakan dalam studi ini dengan memberi perlakuan bahan penghambat tumbuh (paklobutrazol 250 ppm, NaCl 0,5%) dan mengatur kondisi naungan (90% naungan, 50% naungan dan tanpa naungan) serta disimpan selama 6 bulan. Setelah penyimpanan, tanaman hasil perlakuan diangkut dan ditanam di lapangan, selanjutnya diamati pertumbuhannya selama 17 bulan. Hasil penelitian menunjukkan bahwa pertumbuhan bibit trema dapat ditekan selama penyimpanan 6 bulan dengan mengaplikasikan paklobutrazol 250 ppm dibawah kondisi naungan 50% (T = 32,2 °C; RH = 62%, intensitas cahaya 27.300 lux). Kondisi ini dapat menekan pertumbuhan diameter dan nisbah pucuk akar masing-masing sebesar 49% dan 11% serta dapat mempertahankan persen hidup bibit hingga 97,67%. Pertumbuhan tinggi dan diameter terbaik di lapangan adalah kombinasi penggunaan NaCl dengan intensitas naungan 50%. Efektivitas aplikasi bahan penghambat tumbuh pada tanaman saat penyimpanan di persemaian berbeda dengan yang digunakan untuk meningkatkan pertumbuhan tanaman di lapang.

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The Use of Paclobutrazol and Shading Net on Growth and Yield of Potato ‘Medians’ Tuber of G2 in Medium Land of Indonesia

Cited by 10 publications

References 6 publications

Initial growth of Calendula officinalis L. plants treated with paclobutrazol

Initial growth of Calendula officinalis L. plants treated with paclobutrazol

Paclobutrazol as a plant growth regulator

STORAGE OF TREMA (Trema orientalis Linn. Blume) SEEDLINGS IN NURSERIES AND THEIR EFFECT ON GROWTH

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