scholarly journals Chemical change during storage of crambe cultivated with application of plant growth regulators

2020 ◽  
Vol 36 (1) ◽  
Author(s):  
Nayara Parisoto Boiago ◽  
Silvia Renata Machado Coelho ◽  
Carlos Henrique de Oliveira Paz ◽  
Divair Christ
Keyword(s):  
Antioxidant Activity ◽  
Plant Growth ◽  
Protein Content ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Lipid Content ◽  
Chemical Change ◽  
Control Treatment ◽  
Lipid Contents ◽  
Indole 3 Acetic Acid

This study aimed to characterize the chemical composition of crambe grains produced with plant growth regulators in the 2014 and 2015 harvests and stored for 180 days. During crambe cultivation, two foliar sprayings were carried out with the following treatments: 1) control treatment with distilled water; 2) indole-3-acetic acid 100 mg L-1 (IAA); 3) 3-gibberellic acid P.A. 100 mg L-1 (GA3); 4) Stimulate®. After harvesting, the grains were analyzed initially and after 180 days of uncontrolled storage. We checked water content, lipids in hot extraction (HE), lipids in cold extraction (CE), proteins, acidity and antioxidant activity. The Tukey test was used to compare the averages (p<0.05) and the parameters were grouped using a multivariate clustering technique presented in dendogram. The CE and HE lipid contents were reduced after storage, whereas the protein content and antioxidant activity of the grains were not altered by storage. However, the grains that received IAA application showed an increase in the CE lipid content and their preservation after storage. GA3 application, on the other hand, reduced the protein content. Lipid contents remained constant at the end of storage, and the acidity was reduced due to the application of GA3 and Stimulate® plant growth regulators. The 180-day storage changed crambe quality and regulators can assist in preserving grain quality during storage. The CE and HE lipid content and the grain acidity were good indicators for evaluating effects.

TECHNOLOGICAL PROFILE OF SWEET SORGHUM JUICE cv. CMSXS-646 SUBMITTED TO CHEMICAL RIPENERS APPLICATION AND SAMPLING PERIODS

2018 ◽  
Vol 17 (3) ◽  
pp. 420 ◽  
Author(s):  
BRUNO RAFAEL ALMEIDA MOREIRA ◽  
RONALDO SILVA VIANA ◽  
GUSTAVO PAVAN MATEUS ◽  
MATHEUS LUIS OLIVEIRA CUNHA
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Sweet Sorghum ◽  
Reducing Sugars ◽  
Statistical Tests ◽  
Hydraulic Press ◽  
Soluble Solids ◽  
Control Treatment ◽  
Total Reducing Sugars

ABSTRACT - There is a little information about sweet sorghum crop behavior under chemical ripeners spraying management. Therefore, the aim of this study was to assess the technological profile of sweet sorghum (cv. CMSXS-646) juice under spraying of plant growth regulators and sampling periods. A randomized complete block experimental factorial design was used, with an additional control treatment (arrangement 2x2+1), corresponding to two chemical ripeners with three-doses for each product, glyphosate (0.2, 0.4, and 0.8 l c.p. ha-1) and methyl-sulfumeturon (10, 20, and 30 g c.p. ha-1), two sampling periods (15 and 30-days after spraying - DAS) and one control treatment (water spraying). After crop harvest, stalks were milled using a hydraulic press and the derived juice was assessed for total soluble solids (°Brix), apparent sucrose (POL), purity (PRT), reducing sugars (RS), total reducing sugars (TRS), fibers (FIB) and recoverable theoretical sugars (RTS). The dataset was subjected to the Shapiro-Wilk, Fisher, Tukey, Pearson and multiple linear regression statistical tests (p<0.05). There was an interaction between causes of variation for almost all assessed characteristics except to RTS, only affected by the sampling period. As conclusion, it is possible to grow sweet sorghum (cv. CMSXS-646) till thirty-days after spraying of chemical ripeners, treated by glyphosate 0.4 l c.p. ha-1 or sulfumeturon-methyl 10 g c.p. ha-1, because these doses caused feedstock with high °Brix, POL, total reducing sugars, purity levels.Keywords: Sorghum spp., phytorregulators, plant growth regulators, glyphosate, sulfumeturon-methyl. PERFIL TECNOLÓGICO DE CALDO DE SORGO SACARINO (cv. CMSXS-646) SUBMETIDO À APLICAÇÃO DE MATURADORES QUÍMICOS E ÉPOCAS DE AMOSTRAGEMRESUMO – Há poucas informações sobre o comportamento da cultura do sorgo sacarino sob manejo de aplicação de maturadores químicos. Portanto, o objetivo desta pesquisa foi avaliar o perfil tecnológico de caldo de sorgo sacarino cv. CMSXS-646 submetido à aplicação de maturadores químicos e períodos de amostragem. Aplicou-se o delineamento de blocos inteiramente casualizados, em esquema de fatorial (2x2+1), correspondente a dois maturadores químicos com três dosagens - glifosato (0,2; 0,4 e 0,8 l p.c. ha-1) e sulfumeturon-metil (10, 20 e 30 g p.c. ha-1); dois períodos de amostragem (15 e 30 dias após aplicação - DAA); e um tratamento controle (aplicação de água). Após a colheita, destinaram-se colmos à moagem, realizada em prensa hidráulica, para extração de caldo; avaliaram-se sólidos solúveis totais (°Brix), sacarose aparente (POL), pureza (PRT), açúcares redutores (AR), açúcares redutores totais (ART), fibras (FIB) e açúcares teóricos recuperáveis (ATR). Ao conjunto de dados, aplicaram-se testes estatísticos, Shapiro- Wilk, Fisher, Tukey, Pearson e regressão múltipla, ao nível de 5% de probabilidade. Houve interação entre as causas de variação para quase todas as características, exceto ATR, influenciado, somente, pelo período de amostragem. Concluiu-se que a aplicação dos maturadores químicos glifosato 0,4 l c.p. ha-1 e sulfumeturon-metil 10 g p.c. ha-1 apresentou um incremento na qualidade da matéria-prima com alto teor de °Brix, POL, açúcares redutores totais e níveis de pureza trinta dias após a pulverização dos maturadores.Palavras-chave: Sorghum spp., fitorreguladores, reguladores de crescimento vegetal,

scholarly journals 300 Effects of Plant Growth Regulators on Eggplant (Solanum melongena L.) Yield

HortScience ◽  
2000 ◽  
Vol 35 (3) ◽  
pp. 443C-443
Author(s):  
J. Pablo Morales-Payan
Keyword(s):  
Plant Growth ◽  
Gibberellic Acid ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Fruit Set ◽  
Block Design ◽  
Control Treatment ◽  
Amine Hydrochloride ◽  
Yield Increase ◽  
Giberellic Acid

Field studies were conducted in the Dominican Republic to determine the effect of several plant growth regulators on the yield of `Jira' eggplant. Treatments consisted of aqueous solutions of folcysteine (25, 50, 75 ppm), giberellic acid 3 (10, 20, 30 ppm), kinetine (25, 50, 75 ppm), naphthalenacetic acid (NAA) (25, 50, 75 ppm), 2,3,4-dichloro-phenoxy-triethyl-amine hydrochloride (DCPTA) (25, 50, 75 ppm), triacontanol (5, 10, 15 ppm), ethanol (5, 10, 15%), and chlormequat (50, 100, 150 ppm) sprayed at early flowering, directed to the crop upper leaves and flowers. A control treatment (no plant growth regulators applied) was also included. A randomized complete-block design with four replications was utilized. Experimental units were two rows of 10 plants at a 1.0 × 0.4-m distancing. Eggplant fruit set and yield were determined after 10 harvests performed at 3-day intervals. Analysis of variance and mean comparison tests were performed on the resulting data. `Jira' eggplant fruit set and yield was significantly improved by folcysteine, giberellic acid 3, and NAA, but not by kinetine, DCPTA, ethanol, triacontanol, or chlormequat. Eggplant yield increased as folcysteine rate increased from 0 to 50 ppm, but no further yield increase was obtained when increasing the rate from 50 to 75 ppm. Similarly, eggplant yield significantly increased as gibberellic acid increased from 0 to 20 ppm, but not when rates increased from 20 to 30 ppm. With NAA, eggplant fruit set and yield significantly increased above that of control plants when 25 ppm was applied, with no significant yield increase at higher rates. Results indicate that the yield of `Jira' eggplants could be enhanced by the treatments with either folcysteine, NAA, or gibberellic acid hereby described.

scholarly journals Effect of Plant Growth Regulators on Fruit-set and Quality of Guava

2016 ◽  
Vol 4 (12) ◽  
pp. 1088 ◽  
Author(s):  
Shreef Mahmood ◽  
Md. Nazmul Hasan ◽  
S.M. Younus Ali ◽  
Rafija Alam Ripa ◽  
Md. Golap Hossain
Keyword(s):  
Ascorbic Acid ◽  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Acid Content ◽  
Fruit Set ◽  
Ascorbic Acid Content ◽  
Fruit Weight ◽  
Control Treatment ◽  
Parthenocarpic Fruit

Two plant growth regulators: β-NOA (50 and 80 ppm) and GA (200 and 250 ppm) were applied to emasculated flowers at anthesis to set parthenocarpic fruit, while in the control treatment fruit set was achieved by natural pollination. The application of β-NOA found ineffective in setting parthenocarpic guava. No significant differences were observed in the length and diameter of fruit between parthenocarpic and naturally pollinated seeded fruit at different days after anthesis. The mean fruit weight, TSS and ascorbic acid content of parthenocarpic fruit were similar to that of seeded fruit. Significant higher amount of total polyphenol was detected in the seeded fruit than the parthenocarpic fruit. Although 200 ppm GA showed comparatively better response to fruit growth, TSS and ascorbic acid content than 250 ppm GA but not in a statistical level.

scholarly journals Foliar application of plant growth regulators changes the physiological quality of crambe seeds

2019 ◽  
Vol 41 ◽  
pp. e46093 ◽  
Author(s):  
Nayara Parisoto Boiago ◽  
Silvia Renata Machado Coelho ◽  
Giovana Scalcon Fernandes ◽  
Carlos Henrique de Oliveira Paz ◽  
Felipe Samways Santos
Keyword(s):  
Electrical Conductivity ◽  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Germination Percentage ◽  
Control Treatment ◽  
Cultivated Plants ◽  
Germination Speed ◽  
Physiological Quality

The application of plant growth regulators can manipulate the development of cultivated plants, and their physiological effects may be reflected in the physiological quality of the seeds. This study evaluated the effects of plant growth regulators (PGR) on the physiological quality of crambe seeds produced in the 2014 and 2015 harvests. During crop development, we applied two foliar sprayings of the following treatments: 1) control treatment with distilled water; 2) indole-3-acetic acid 100 mg L-1 (IAA); 3) 3-gibberellic acid P.A. 100 mg L-1 (GA3); 4) commercial PGR Stimulate® 6 mL L-1. The seeds were harvested and evaluated for water content, germination percentage and germination speed index (GSI), electrical conductivity and concentrations of leached Ca, Mg and K ions. Means were compared by Tukey´s and Dunnett tests (p<0.05). Applying Stimulate® increased the germination percentage and the germination speed index, while IAA application showed an opposite effect, increasing the electrical conductivity of crambe seeds. Calcium leaching decreased with IAA application, and all regulators reduced K leaching. We therefore infer that the application of plant growth regulators influences the physiological quality of crambe seeds.

Monoclonal antibodies to plant growth regulators. II. Indole-3-acetic acid

Planta ◽  
1985 ◽  
Vol 166 (3) ◽  
pp. 389-393 ◽  
Author(s):  
R. Mertens ◽  
J. Eberle ◽  
A. Arnscheidt ◽  
A. Ledebur ◽  
E. W. Weiler
Keyword(s):  
Acetic Acid ◽  
Monoclonal Antibodies ◽  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Indole 3 Acetic Acid

scholarly journals Protocols for Adventitious Regeneration of Amelanchier alnifolia var. cusickii and Lonicera kamtschatica ‘Jugana’

Plants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1155
Author(s):  
Júlia Hunková ◽  
Monika Szabóová ◽  
Alena Gajdošová
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Adventitious Shoots ◽  
Culture Conditions ◽  
Indirect Organogenesis ◽  
Adventitious Regeneration ◽  
Amelanchier Alnifolia ◽  
Indole 3 Acetic Acid

The aim of this work was to assess the regeneration capacity of Amelanchier alnifolia var. cusickii and Lonicera kamtschatica cv. ‘Jugana’ from different types of explants under various hormonal treatments. The whole leaves, petioles, and internodal segments of in vitro plants were examined as explants. Several plant growth regulators (cytokinins and auxins) were evaluated for their ability to induce adventitious regeneration. Direct and indirect organogenesis was achieved under certain culture conditions in both species. The frequency of shoot regeneration was strongly dependent on concentrations of plant growth regulators in the induction media (L.kamtschatica ‘Jugana’) or concentrations of plant growth regulators in the induction media and type of explant (A. alnifolia var. cusickii). Results showed that leaves were not suitable explants for A. alnifolia var. cusickii. Both species were able to regenerate shoots from internodal segments and petioles. The highest induction of shoots was obtained on Murashige and Skoog (MS) medium enriched with 2 mg/L thidiazuron (TDZ) and 0.5 mg/L indole-3-butyric acid (IBA) for Amelanchier alnifolia and with 1 mg/L TDZ and 0.2 mg/L indole-3-acetic acid (IAA) for L. kamtschatica ‘Jugana’. Obtained adventitious shoots were further proliferated in order to investigate their multiplication capacity. The multiplication of shoots was successful in all cultivars, with the best results reported in A. alnifolia var. cusickii (7.07 shoots/explant on average).

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