Distribution of calcium in tomato plants in response to heat stress and plant growth regulators

Relevance and methods. This study aimed to improve fruit set and plant performance to increase tomato productivity by studying the effect of plant growth regulators on tomato plants. A specific experiment has been carried out to study the effect of plant growth regulators Hemo bles active substances (850 g/kg) Humic Acid with applied doses (250, 500 and 700 ppm) and Magictone active substances (5-12.5 g/kg) naphthalene acetic acid and naphthalene acetamide with applied doses (250, 500 and 700 ppm) on growth and physiological characteristics of tomato plants (Big Beef F1). The experimental design was a Complete Randomized Blocks Design. Both Hemo bles and Magictone were applied three times (spraying on plants at 30 DAP, spraying on plants at 60 DAP and spraying on plants 90 DAP).Results. The obtained results showed that, Applying Humic Acid “Ener-850” had the highest significant fruit weight (137 g) during the two seasons. Also using “Magictone” had the highest significant Flowers number (48.1), Fruits Number (35.1), Flower Clusters number in the plant (13.6) and Fruits Number (54.6. while (Humic Acid) improved tomato fruit’s quality during improve Dry weight (75.1 g) of Arial parts, Ascorbic Acid, level of Vitamin C and Carotenoids contents (4.82 mg 100 g-1). The results were analyzed using one-way analysis of variance (ANOVA) followed by Tukey’s HSD test with α = 0.05 with the help of MINITAB (v. 19.0) program.

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Effect of indol-3-butric acid and chloromequate chloride on the vegetable and fruit growth of tomato plants

VEGETABLE CROPS OF RUSSIA ◽

10.18619/2072-9146-2020-1-50-53 ◽

2020 ◽

pp. 50-53

Author(s):

Ah. A. Suliman ◽

A. G. Abramov

Keyword(s):

Plant Growth ◽

Plant Growth Regulators ◽

Growth Regulators ◽

Fruit Set ◽

Fruit Weight ◽

Plant Performance ◽

Tomato Plants ◽

Number Of Leaves ◽

Active Substances ◽

Specific Experiment

Relevance. This study aimed to improve fruit set and plant performance to increase tomato productivity by studying the effect of plant growth regulators on tomato plants.Methods. A specific experiment has been carried out to study the effect of plant growth regulators Milagro (1% indol-3-butric acid) and Atlet active substances indol-3-butric acid and chloromequate chloride with applied doses (0.6 M/L, 1.0 M/L and 1.5 M/L) and (1.0, 1.5 and 2.0 M/L) on growth and physiological characteristics of plants (Big Beef F1). The experimental design was a Complete Randomized Blocks Design. Both Hemo bles was applied three times (spraying on plants at 30 DAP, spraying on plants at 60 DAP and spraying on plants 90 DAP).Results. The obtained results showed that, Applying Milagro (1% indol-3-butric acid) had the highest significant Plant height (80.13, 128.77 and 239 cm), number of leaves/plant (18.0, 34.67 and 44.3) and stem diameter (1.07, 1.5 and 2.03 cm), fruit weight (122.0 and 136 g), Flower Clusters number in the plant (4.64, 13.33 and 16.33) and Fruits Number (61.67, 62.0 and 67) Over the three years of study. The results were analyzed using one-way analysis of variance (ANOVA) followed by Tukey’s HSD test with α = 0.05 with the help of MINITAB (v. 19.0) program.

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Plant growth regulators interact with elevated temperature to alter heat stress signaling via the Unfolded Protein Response in maize

10.1101/532796 ◽

2019 ◽

Cited By ~ 2

Author(s):

Elena M. Neill ◽

Michael C. R. Byrd ◽

Thomas Billman ◽

Federica Brandizzi ◽

Ann E. Stapleton

Keyword(s):

Endoplasmic Reticulum ◽

Heat Stress ◽

Elevated Temperature ◽

Plant Growth ◽

Plant Growth Regulators ◽

Growth Regulators ◽

Plant Growth Regulator ◽

Unfolded Protein ◽

The Unfolded Protein Response ◽

Protein Response

ABSTRACTPlants are increasingly exposed to high temperatures, which can cause accumulation of unfolded protein in the endoplasmic reticulum (ER). This condition, known as ER stress, evokes the unfolded protein response (UPR), a cytoprotective signaling pathway. One important branch of the UPR is regulated by splicing of bZIP60 mRNA by the IRE1 stress sensor. There is increasing evidence that commercial plant growth regulators may protect against abiotic stressors including heat stress and drought, but there is very little mechanistic information about these effects or about the regulatory pathways involved. We evaluated evidence in the B73 Zea mays inbred for differences in the activity of the UPR between permissive and elevated temperature in conjunction with plant growth regulator application. Treatment with elevated temperature and plant growth regulators increased UPR activation, as assessed by an increase in splicing of the mRNA of the IRE1 target bZIP60 following paclobutrazol treatment. We propose that plant growth regulator treatment induces bZIP60 mRNA splicing which ‘primes’ plants for rapid adaptive response to subsequent endoplasmic reticulum-stress inducing conditions.

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EFFECTS OF PLANT GROWTH REGULATORS AND DATES PLANTING ON SPRING MAIZE PRODUCTION UNDER AGRO-CLIMATIC CONDITIONS OF FAISALABAD, PAKISTAN

Pakistan Journal of Agriculture, Agricultural Engineering and Veterinary Sciences ◽

10.47432/2020.36.2.5 ◽

2021 ◽

Vol 36 (2) ◽

pp. 120-128

Author(s):

M. Qandeel ◽

A. Jabbar ◽

F. U. Haider ◽

A. L. Virk ◽

N. U. Ain

Keyword(s):

Heat Stress ◽

Plant Growth ◽

Grain Yield ◽

Methyl Jasmonate ◽

Plant Growth Regulators ◽

Growth Regulators ◽

Foliar Application ◽

Block Design ◽

Maximum Yield ◽

Spring Maize

Maize is a widely grown cereal crop worldwide, butthe heat stress and delayed sowing of maize are major constraints that result in declining the maize productivity.Therefore, the current study was designed to investigate the growth promoting effect of different growth regulators i.e., salicylic acid, methyl jasmonate, and humic acid at multiple sowing times in spring maize. Experiment was laid out in randomized complete block design having split-plot arrangement with three replications having plot size of 6m × 2.25m.The yield contributing agronomic parameters were recorded and analyzed statistically by using Fisher’s analysis of variance technique and treatment means were contrasted by Least significance difference having 5% probability test. Results revealed that early and delayed sowing of maize tended to decline the maize productivity and grain yield. Maximum yield and yield contributing traits were observed in S1 (recommended sowing, i.e., 20-02-2017). The plant growth regulators significantly influenced the productivity of maize and minimized heat stress. The interaction between sowing dates and plant growth regulators were also significant. Among plant growth regulators, the foliar application of methyl jasmonate resulted to produce maximum biological, grain yield, 1000-grain weight, and harvest index, which were 23.04, 36.12, 14.06 and 7.87%, respectively higher than the control.The study reported that delayed sowing of maize declined the production of maize due to the gradual rise of temperature in March and plant growth regulators had the potential to minimize the heat stress and productivity of maize.

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Effect of humic acid and naphthalene acetic acid on vegetative growth and fruit quality of tomato plants Lycopersicon esculentum

RUDN Journal of Agronomy and Animal Industries ◽

10.22363/2312-797x-2020-15-1-30-39 ◽

2020 ◽

Vol 15 (1) ◽

pp. 30-39

Author(s):

Ahmad Ali Suliman ◽

Alexandr Gennadevich Abramov ◽

Anna Alekseevna Shalamova ◽

Antar Mahmoud Badran

Keyword(s):

Acetic Acid ◽

Humic Acid ◽

Lycopersicon Esculentum ◽

Plant Growth ◽

Plant Growth Regulators ◽

Growth Regulators ◽

Fruit Quality ◽

Carotenoid Content ◽

Naphthalene Acetic Acid ◽

Tomato Plants

The study aimed to improve fruit set and plant performance to increase tomato productivity by studying the effect of plant growth regulators on tomato plants (Lycopersicon esculentum). A specific experiment has been carried out to study the effect of plant growth regulators Hemo bles (humic acid, 850g/kg) at applied doses (250, 500 and 700 ppm) and Magictone (naphthalene acetic acid and naphthalene acetamide, 5…12.5 g/kg) at applied doses (250, 500 and 700 ppm) on growth and physiological characteristics of tomato plants (Big Beef F1). The experimental design was a Complete Randomized Blocks Design. Both Hemo bles and Magictone were applied three times (spraying on plants at 30 days after planting (DAP), 60 DAP and 90 DAP). The obtained results showed that, applying Ener-850 humic acid caused the highest significant plant height (264.6 cm), number of leaves/plant (45), stem diameter (1.9 cm) and fruit weight (137 g) during the two seasons. In addition, applying Magictone resulted in the highest significant flower number (48.1), fruit number (35.1) and flower clusters number in the plant (13.6). Additionally, humic acid significantly increased dry weight (75.1 g) of arial parts with improving of tomato fruit quality via enhancing the concentrations of ascorbic acid, level of vitamin C and carotenoid content. The results were analyzed using one-way analysis of variance (ANOVA) followed by Tukey’s HSD test with α = 0.05 with the help of MINITAB (v. 19.0) program.

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Influence of seed treatment with microbiological preparations and growth regulators on biometric characteristics of tomato plants

Kartofel` i ovoshi ◽

10.25630/pav.2021.30.23.001 ◽

2021 ◽

pp. 13-17

Author(s):

Н.А. Жевнова ◽

Е.А. Гырнец ◽

А.А. Цыгичко ◽

М.М. Астахов ◽

Н.М. Сидоров

Keyword(s):

Plant Growth ◽

Plant Growth Regulators ◽

Growth Regulators ◽

Seed Coat ◽

Growth And Development ◽

Root Weight ◽

Tomato Plants ◽

Biological Products ◽

Germination Energy ◽

Positive Effect

Цель работы: подбор регуляторов роста растений и биологических препаратов фунгицидного действия, оказывающих положительное влияние на энергию прорастания, всхожесть, рост и развитие растений томата сорта Транс Рио. Влияние регуляторов роста растений и микробиологических препаратов на энергию прорастания, всхожесть, рост и развитие растений было определено в лабораторных условиях на базе ФГБНУ ФНЦБЗР путем помещения обработанных семян во влажную камеру. Объектами исследования выступали регуляторы роста растений: Биодукс, Ж, ОберегЪ, Р, Иммуноцитофит, ТАБ; Рибав-Экстра, Р; биологические фунгициды на основе живых культур микроорганизмов: Гамаир, СП, Триходерма Вериде 471, СП, Псевдобактерин-2, Ж, Споробактерин, СП, а также штаммы В. velezensis BZR 517, В. velezensis BZR 336g. В работе был использован краситель Sapphire Seed Coat, разрешенный к применению в ЕС в органическом земледелии. Совместимость биопрепаратов была определена методом диффузии в агар. Исследование методом диффузии в арар показало, что краситель Sapphire Seed Coat не оказывает ингибирующего действия на микробиологические препараты Гамаир, СП; Триходерма 471, СП; Псевдобактерин-2, Ж; Споробактерин, СП и штаммы В. velezensis BZR 517, В. velezensis BZR 336g. Отмечено положительное влияние на рост и развитие томата препарата Гамаир, СП и штамма В. velezensis BZR 336g: увеличение массы корня на 23,5–52,9% и массы побега на 36,5–70,3%. Отмечено статистически значимое увеличение всех биометрических показателей при использовании смеси Иммуноцитофит, ТАБ и Sapphire Seed Coat: прибавка массы корня на 36,4%, длины и массы побега на 7,9 и 1,5% соответственно. Отобраны биопрепараты, которые будут задействованы в дальнейших этапах работы в качестве экологически безопасных средств для обработки семян томата с целью долгосрочного хранения (Гамаир, СП и штамм В. velezensisBZR 336g). Purpose of this work is to select plant growth regulators and biological preparations of fungicidal action that have a positive effect on the germination energy, germination, growth and development of tomato plants of the Trans Rio variety. The effect of plant growth regulators and microbiological preparations on germination energy, germination, growth and development of plants was determined in laboratory conditions at the base FSBSI FRCBPP by placing treated seeds in a humid chamber. The objects of the study were plant growth regulators: Biodux, F, Obereg, P, Immunocytophyte, TAB; Ribav-Extra, P; biological fungicides based on live cultures of microorganisms: Gamair, SP; Trichoderma Veride 471, SP, Pseudobacterin-2, F, Sporobacterin, SP, as well as strains of B. velezensisBZR 517, B. velezensis BZR 336g. The dye Sapphire Seed Coat, approved for use in the EU in organic farming, was used in the work. The compatibility of biological products was determined by the method of diffusion into agar. The method of diffusion into agar showed that the Sapphire Seed Coat does not have an inhibitory effect on the microbiological preparations Gamair, SP; Trichoderma 471, SP; Pseudobacterin-2, W; Sporobacterin, SP and the strains B. velezensis BZR 517, B. velezensis BZR 336g. A positive effect on the growth and development of tomato preparation Gamair, SP and strain B. velezensis BZR 336g was noted: an increase in root weight by 23.5–52.9% and shoot weight by 36.5–70.3%. There was a statistically significant increase in all biometric indicators when using a mixture of Immunocytophit, TAB and Sapphire Seed Coat: an increase in root weight by 36.4%, length and weight of the shoot by 7.9 and 1.5%, respectively. Biological products have been selected that will be used in the further stages of work as environmentally safe means for processing tomato seeds for long-term storage (Gamair, SP and B. velezensis strain BZR 336g).

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