Seed and yield parameters as influenced by season and plant growth regulators in dolichos bean [Lablab purpureus L. (Sweet)]

2019 ◽  
Author(s):  
S. Sajjan Ashok ◽  
Pramoda . ◽  
T.A. Malabasari ◽  
T.R. Shashidhar
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Seed Yield ◽  
Growth Regulators ◽  
Field Experiments ◽  
Foliar Spray ◽  
Rabi Season ◽  
Pod Yield ◽  
Pod Length ◽  
Number Of Seeds

Field experiments were conducted in the Department of Seed Science and Technology, University of Agricultural Sciences, Dharwad, Karnataka during 2016-17. The field experiment consisted of 18 treatment combinations involving two seasons viz., kharif 2016 and rabi 2016-17 and plant growth regulators viz., G1: Control, G2 : GA3 @ 50 ppm, G3 : NAA @ 40 ppm, G4 : Cycocel @ 100 ppm, G5 : Mepiquat chloride @ 50 ppm, G6 : Nitrobenzene @ 200 ppm, G7: TIBA @ 50 ppm, G8 : Brassinosteroids @ 200 ppm, G9 : GA3 @ 5 ppm + IAA @ 5 ppm and experiment was laid out in Factorial RBD with three replications. The more number of pods per plant (117.19), number of seeds per pod (4.25), dry pod yield per plant (118.53 g), dry pod yield per plot (2.07 kg), seed yield per plant (114.48 g), pod length (5.66 cm), seed yield per plot (2.32 kg), seed yield per hectare (1,281 kg) was recorded in rabi season than kharif. Among the plant growth regulators more number of pods per plant (120.44), number of seeds per pod (4.44), dry pod yield per plant (120.17 g), dry pod yield per plot (2.21 kg), seed yield per plant (117.60 g), seed yield per plot (2.55 kg), seed yield per hectare (1,360 kg) and pod length (6.04 cm) was recorded in NAA @ 40 ppm, followed by nitrobenzene @ 200 ppm, (119.78, 4.35, 119.54, 2.11, 116.76, 2.42, 1,299 kg and 5.93 cm, respectively). The interaction effect was found to be non-significant for majority of the characters studied. However, foliar spray of NAA @ 40 ppm during rabi season recorded higher crop growth, seed yield and quality parameters as compared to control.

scholarly journals Изменение некоторых морфологических показателей грозди и ягоды винограда под влиянием регуляторов роста

2019 ◽  
pp. 312-316
Author(s):  
Elena Ghinda
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Field Experiments ◽  
Growing Season ◽  
Table Grape ◽  
Morphometric Parameters ◽  
Morphological Parameters ◽  
Grape Varieties ◽  
Number Of Seeds

В статье приведены результаты полевых опытов по изучению применения регуляторов роста растений гиббереллин (100 мг/л), мицефит (10 и 100 мг/л), циркон (0,2; 0,4 и 0,6 мл/л), эпин-экстра (0,05; 0,1 и 0,2 мл/л) и их смесей с целью улучшения морфологических показателей, таких как длина и ширина грозди, количество ягод в грозди и семян в одной ягоде, длина и ширина крупной и горошащейся ягоды винограда сортов столового направления Восторг и Талисман в условиях Приднестровского региона. Установлена зависимость эффективности применения регуляторов роста от срока обработки растений винограда в период вегетации. Результаты исследований показывают, что в условиях Приднестровского региона у изучаемых сортов винограда столового направления Восторг и Талисман при применении регуляторов роста гиббереллин, мицефит, циркон, эпин-экстра и их смесей в испытуемых концентрациях наблюдается изменение количества ягод в грозди и семян в одной ягоде. Также отмечены достоверные изменения морфометрических показателей грозди, крупных и горошащихся ягод.The article presents the results of field experiments with the aim to investigate the use of plant growth regulators gibberellin (100 mg/l), mycephitis (10 and 100 mg/l), zircon (0.2; 0.4 and 0.6 ml/l), epin-extra (0.05; 0.1 and 0.2 ml/l) and their mixtures for improvement of morphological parameters such as length and width of the bunch, the number of berries in the bunch and the number of seeds in one berry as well as length and width of large and shot (‘chicken’) berries in table grape varieties ‘Vostorg’ and ‘Talisman’ in the Transdniestria region. The effectiveness of the use of growth regulators was established depending on the period of treatment of grape plants during the growing season. The research results show that, under the conditions of the Transdniestria region, the ‘Vostorg’ and ‘Talisman’ varieties undergo changes in the number of berries in the bunch and in the number of seeds in one berry following application of growth regulators gibberellin, mycephitis, zircon, epin-extra at the study concentrations and in mixtures. Significant changes in morphometric parameters of the bunch as well as of large and ‘chicken’ berries were also noted.

scholarly journals Impact of Plant Growth Regulators on Sesame (Sesamum indicum L.) Yield and its Attributes

2021 ◽  
Vol 10 (10) ◽  
pp. 102-107
Author(s):  
D. M. Hadiya H. S. Bhadauria ◽  
K. P. Prajapati A. K. Singh ◽  
V. H. Kanabi
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Seed Yield ◽  
Growth Regulators ◽  
Block Design ◽  
Foliar Spray ◽  
Sesamum Indicum ◽  
Rainfed Condition ◽  
Randomized Block Design ◽  
Biological Yield

The experiment was conducted at Agronomy Instructional Farm, S. D. Agricultural University, Sardarkrushinagar during Kharif 2020 to examined the effect of different foliar spray of plant growth regulators viz., GA3 (100 and 200 ppm), NAA (50 and 100 ppm), CCC (500 and 1000 ppm) and SA (500 and 1000 ppm) on seed yield and its related attributes of sesame variety (Gujarat Til 3).The research was laid out in randomized block design, with ten treatments in three replication under rainfed condition. GA3 200 ppm significantly increased seed yield and its attributes of sesame the number of capsule per plant, number of seeds per capsule, biological yield, harvest index and oil content.

Effects of plant growth regulators on stem extension and yield components of linseed (Linum usitatissimum)

1999 ◽  
Vol 132 (2) ◽  
pp. 189-199 ◽  
Author(s):  
M. H. LEITCH ◽  
O. KURT
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Seed Yield ◽  
Growth Regulators ◽  
Field Experiments ◽  
Stem Length ◽  
Growth Stages ◽  
Early Application ◽  
Number Of Stems ◽  
Total Oil

The response of linseed to treatment with two plant growth regulators (PGRs), chlormequat and ethephon, applied at a range of growth stages (corresponding to average mainstem lengths of 10, 23, 46, 55 and 64 cm) and in various combinations (single and repeated applications of chlormequat and ethephon, either alone or mixed) was studied in field experiments over two seasons in 1992 and 1993 at the University College of Wales, Aberystwyth. Reduction in mainstem length was dependent upon the type of PGR and the timing of its application. Chlormequat alone was consistently more effective than ethephon alone, while a mixture of the two at half rates was similar to chlormequat alone. The largest reductions in mainstem length (16·6% with chlormequat and 6·1% with ethephon, averaged over the two years) were achieved when the PGRs were applied when mainstems averaged 22–23 cm in length. Response to PGRs became progressively smaller with later applications. However, the reduction in mainstem length, when expressed as a percentage of that part of the stem yet to extend (i.e. final untreated stem length−stem length at the time of PGR application), was shown to be remarkably consistent across all (apart from the first) timings of application, with average values of 28·4 and 7·4% for chlormequat and ethephon respectively.Application of both PGRs increased tillering and increased significantly the number of stems per unit area at maturity. This response occurred irrespective of timing of application and was greater following treatment with ethephon than with chlormequat. In the first year, the effects of PGRs on dry matter production and seed yield were small and not statistically significant. In the second year, significant reductions in seed yield were associated with those PGR treatments which promoted tillering most, i.e. early application of ethephon. Smaller yields were the result of fewer capsules per plant. Furthermore, a significant correlation between mainstem length and the number of seeds per capsule indicated a reduction of 0·78 seeds per capsule for every 10 cm reduction in stem length. While total oil content of seed remained unaffected by PGR applications, treatments which included chlormequat at an early growth stage (either alone or in combination with ethephon) altered the relative proportions of fatty acids, reducing the content of linolenic acid while increasing that of oleic acid.

Growth and Yield Response of Black Sesame (Sesamum indicum L.) to Foliar Spray of Amendments as Plant Growth Regulators and Micronutrients in Field Conditions

2021 ◽  
Vol 6 (4) ◽  
Author(s):  
Tuan NTQ ◽  
Hue NH ◽  
Khuong NQ ◽  
Huu TN ◽  
Thuc LV
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Plant Growth Regulator ◽  
Foliar Spray ◽  
Mekong Delta ◽  
Sesamum Indicum ◽  
Growth And Yield ◽  
Yield Response ◽  
Number Of Seeds

To improve the yield of sesame in Mekong delta of Vietnam, the study was conducted to find out plant growth regulator, micronutrient to increase growth and yield of black sesame. The experiment consisted of six treatments (NT) as follows: NT1: Control as no plant growth regulators and micronutrients, NT2: Spraying brassinolide at 50ppm, NT3: Spraying gibberellin at 100ppm and manganese at 0.05%, NT4: Spraying brassinolide at 1.25ppm, NT5: Spraying boric at 50ppm and molybdenum at 50ppm, NT6: Spraying selenium at 4ppm. The results showed that spraying plant growth regulators and micronutrients as single NAA, BR, Se and combined GA3 plus manganese, boric plus molybdenum at 27 and 35 days after sowing have not increased plant height and height to the first fruit in the first crop. Combination of spraying boric plus molybdenum or single selenium increased the number of capsules per plant, the number of seeds per capsule and resulted in higher sesame yield.

scholarly journals Synthesis, Characterization, and Encapsulation of Novel Plant Growth Regulators (PGRs) in Biopolymer Matrices

2021 ◽  
Vol 22 (4) ◽  
pp. 1847
Author(s):  
Kristina Vlahoviček-Kahlina ◽  
Slaven Jurić ◽  
Marijan Marijan ◽  
Botagoz Mutaliyeva ◽  
Svetlana V. Khalus ◽  
...  
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Electrostatic Interactions ◽  
Growth Regulation ◽  
Field Experiments ◽  
Dimethyl Ester ◽  
Plant Growth Regulation ◽  
Derivatives Of ◽  
Growth Regulating Activity

Novel plant growth regulators (PGRs) based on the derivatives of dehydroamino acids 2,3-dehydroaspartic acid dimethyl ester (PGR1), Z-isomer of the potassium salt of 2-amino-3-methoxycarbonylacrylic acid (PGR2) and 1-methyl-3-methylamino-maleimide (PGR3) have been synthesized and their growth-regulating properties investigated. Laboratory testing revealed their plant growth-regulating activity. PGR1 showing the most stimulating activity on all laboratory tested cultures were used in field experiments. Results showed that PGR1 is a highly effective environmentally friendly plant growth regulator with effects on different crops. Biopolymeric microcapsule formulations (chitosan/alginate microcapsule loaded with PGR) suitable for application in agriculture were prepared and characterized. Physicochemical properties and release profiles of PGRs from microcapsule formulations depend on the molecular interactions between microcapsule constituents including mainly electrostatic interactions and hydrogen bonds. The differences in the microcapsule formulations structure did not affect the mechanism of PGRs release which was identified as diffusion through microcapsules. The obtained results opened a perspective for the future use of microcapsule formulations as new promising agroformulations with a sustained and target release for plant growth regulation.

scholarly journals Influence of Plant Growth Regulators and Micronutrients on Growth, Yield and Quality of Sorghum under Temperate Conditions

2021 ◽  
pp. 18-23
Author(s):  
Zahida Rashid ◽  
Tanveer Ahmad Ahngar ◽  
B. Sabiya ◽  
N. Sabina ◽  
N. S. Khuroo ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Foliar Spray ◽  
Growth Yield ◽  
Soil Application ◽  
Yield And Quality ◽  
Green Fodder ◽  
Fodder Yield

A field experiment was conducted at Dry land Agricultural Research Station, Rangreth, Srinagar, SKUAST-K in Kharif 2020 to study the effect of Plant Growth Regulators and micronutrients on growth, yield and quality of sorghum. The objective of the study was to assess the effect of Plant Growth Regulators and micronutrients on herbage yield and quality. The treatments included; T1: Tricontanol 10 ppm at 30 DAS (foliar spray), T2: Salicylic acid 100 ppm at 30 DAS (foliar spray), T3: 5 kg Zn/ha soil application, T4: 2 kg B/ha soil application, T5: 5 kg Zn + 2 kg B/ha soil application, T6: 5 kg Zn/ha (soil application ) + Triacontanol 10 ppm at 30 DAS (foliar spray), T7: 5 kg Zn/ha (soil application) + salicylic acid 100 ppm at 30 DAS (foliar spray), T8: 2 kg B/ha (soil application) + Triacontanol 10 ppm at 30 DAS (foliar spray), T9: 2 kg B/ha (soil application )+ salicylic acid 100 ppm at 30 DAS (foliar spray), T10: 5 kg Zn + 2 kg B/ha (soil application) + Triacontanol 10 ppm at 30 DAS (foliar spray), T11: 5 kg Zn + 2 kg B/ha (soil application) + salicylic acid 100 ppm at 30 DAS (foliar spray) and T12: Water spray at the time of PGR application. Zn and B were applied at the time of sowing in the soil. The crop was raised with recommended package of practices. In treatments, where zinc was not a treatment, an amount of sulphur through gypsum equivalent to sulphate supplied with 5 kg ZnSO4 was applied to compensate. The crop was sown in 30.0 cm apart lines. The trial was laid out in Randomized Block Design with three replications. The results indicated that all the treatments improved the green fodder yield over control. Among different treatments, T10: 5 kg Zn + 2 kg B/ha soil application + Triacontanol 10 ppm at 30 DAS foliar spray and T11: 5 kg Zn + 2 kg B/ha soil application + salicylic acid 100 ppm at 30 DAS foliar spray produced maximum GFY (493.6 and 490.5q/ha) on locational mean basis. It was significantly superior to other treatments. These treatments improved the green fodder yields by 35.0 % and 34.2 %, respectively, over control (spray of water). In terms of dry matter, similar trend was noted and the improvement with T10 and T11 was to the tune of 36.8 % and 41.0 % over control. Tricontanol 10 ppm at 30 DAS (foliar spray) (T1) improved the green fodder yield and dry fodder yield by 13.6% and 14.3 % respectively over T12Water spray at the time of Plant Growth Regulator application. Similarly spray of T2: Salicylic acid 100 ppm at 30 DAS (foliar spray) improved the green fodder yield and dry fodder yield by 14.4% and 15.4% respectively over T12Water spray at the time of Plant Growth Regulator application. Similar trend was observed with respect to quality parameters (crude protein content and crude protein yield) of sorghum.

scholarly journals Controlling Height and Seedling Emergence of French Marigold and Celosia Plugs with Plant Growth Regulators

2006 ◽  
Vol 24 (3) ◽  
pp. 165-168
Author(s):  
Stanislav V. Magnitskiy ◽  
Claudio C. Pasian ◽  
Mark A. Bennett ◽  
James D. Metzger
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Growth Regulator ◽  
Seedling Emergence ◽  
Foliar Spray ◽  
Seedling Height ◽  
Foliar Sprays ◽  
Spray Applications

Abstract Soaking French marigold seeds in growth regulator solutions produced larger reductions in seedling height than foliar sprays. Seeds soaked in 1 to 5 ppm uniconazole solutions for 0.15, 5, or 45 min resulted in plants that were up to 23% shorter than controls at 30 DAS, whereas foliar applications of 10 to 20 ppm uniconazole solutions resulted in plants 18% shorter than controls at 14 DAS. French marigold seedlings from seeds soaked in 60 pm ancymidol for 5 or 45 min were 5 or 6%, respectively, shorter than controls. Foliar spray applications of 25 or 100 ppm ancymidol to French marigold seedlings resulted in plants 8% shorter than controls. Chlormequat solutions applied either as a seed soak (1000–5000 ppm) or foliar spray (500–3000 ppm) did not reduce French marigold seedling height. Emergence of French marigold seedlings from seeds soaked in uniconazole, ancymidol, or chlormequat solutions was not different from that of control seeds. No effect on seedling height or emergence was found when soaking celosia seeds in uniconazole, ancymidol, or chlormequat solutions. Spraying celosia seedlings with uniconazole, ancymidol, or chlormequat solutions did not reduce seedling height.

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