scholarly journals Evaluation of Quitomax® in the production of Cucumis sativus L. in protected culture

Author(s):  
Yoan Salgado-Valle ◽  
Félix Michel Henríquez-Díaz ◽  
Miguel Ángel Ramírez-Arrebato ◽  
Aida Tania Rodríguez-Pedroso ◽  
Michel Ruiz-Sánchez ◽  
...  

To evaluate the foliar application of the Quitomax® biostimulant in Cucumis sativus crop, an experiment was developed at the municipality of Pinar del Río province, Cuba, under protected crop conditions. The treatments consisted in applying 300 and 500 mg.ha-1 10 and 25 days after transplantation (ddt) and a commercial Bayfolan Forte® control. A randomized design with four long replicates was used and variables such as height and thickness of the plant stem of Cucumis sativus, number of total fruits, fruit mass and number of exportable quality fruits were measured during five harvest times (32, 39, 46, 60 and 67 ddt). The results showed that the higher concentration of Quitomax® applied (500 mg.ha-1) in the two growth moments produces the highest values for the growth variables and the highest exportable quality fruits.

2012 ◽  
Vol 4 (1) ◽  
pp. 112-115 ◽  
Author(s):  
Hossein MARDANI ◽  
Hassan BAYAT ◽  
Amir Hossein SAEIDNEJAD ◽  
Ehsan Eyshi REZAIE

Impacts of various concentrations of salicylic acid (SA) on cucumber (Cucumis sativus L.) seedling characteristic were evaluated under different water stress levels by using a factorial arrangement based on completely randomized design with three replications at experimental greenhouse of Ferdowsi University of Mashhad, Iran. The studied factors included three water deficit levels (100% FC, 80% FC, and 60% FC) considered as first factor and five levels of SA concentrations (0, 0.25, 0.5, 0.75, and 1 mM) as second factor. Results showed that foliar application of SA at the highest concentration enhanced leaf area, leaf and dry weight while decreased stomatal conductance under high level of water deficit stress. Though, severe water deficit stress sharply raised the SPAD reading values. In general, exogenous SA application could develop cucumber seedling characteristic and improve water stress tolerance.


Author(s):  
Mubeen Sarwar ◽  
Muhammad Amjad ◽  
Sumreen Anjum ◽  
Muhammad Waqar Alam ◽  
Shahbaz Ahmad ◽  
...  

Salinity is an ancient environmental phenomenon and reflected as the most important process of land degradation. It is widespread at variable degrees across the world. A sand culture study was conducted in order to investigate the performance of exogenously applied triacontanol on two tolerant (Green long and Marketmore) and two sensitive (Summer green and 20252) genotypes of cucumber (Cucumis sativus L.) under salinity stress (NaCl 50 mM). The foliar application of triacontanol was carried out @ 0.20, 0.40, 0.60, 0.80, 1.00 and 1.20 mg L-1. Salinity caused significant reduction in growth rate, gas exchange and other physiological attributes. Results revealed that triacontanol seemed to relieve the harmful impact of salt stress by improving morpho-physiological attributes and decreasing membrane leakage. Genotypes Green long and Marketmore performed better under salt stress regarding all studied parameters than Summer green and 20252. However, foliar feeding of triacontanol significantly enriched the efficiency of sensitive genotypes under saline conditions. The highest values of different attributes of cucumber plants were observed with foliar application of 0.80 mg L-1 triacontanol. Hence, triacontanol can be effectively used as a mitigating agent to alleviate phytotoxic effects in plants under saline stress.


2019 ◽  
Vol 37 ◽  
Author(s):  
F. DIESEL ◽  
M.M. TREZZI ◽  
R.A. VIDAL ◽  
M.V.J. BARANCELLI ◽  
P.H.F. MIZERSKI

ABSTRACT: Persistence of an herbicide is defined as the ability to maintain the integrity of its molecule and chemical, physical, and phytotoxic properties in the environment where it was applied. Knowledge of persistence has implications both for the toxicity generated on species grown in succession and for the period in which the herbicide controls weeds. This study aimed to assess the persistence of the herbicide saflufenacil in an Oxisol by means of bioassays. Two experiments with the application of 29.4 g ha-1 of saflufenacil were carried out under field conditions: the first in the 2011/2012 season and the second in the 2012/2013 season. Soil samples were collected at depths of up to 10 cm at different times after application. Subsequently, two bioassays were carried out in a greenhouse by using beet (Beta vulgaris L.) and cucumber (Cucumis sativus L.) as bioindicators. The studies were carried out in a completely randomized design with four replications. Treatments consisted of periods after saflufenacil application (0, 5, 10, 15, 25, 35, 50, and 100 days). The crop was also considered as a factor. Stand, height, and phytotoxicity of plants were assessed in both agricultural seasons at 14, 21, and 28 days after sowing (DAS), as well as shoot fresh (SFM) and dry matter (SDM) at 28 DAS. In general, saflufenacil persistence was between 25 and 35 days. Beet was more sensitive to the presence of saflufenacil in the soil when compared to cucumber. Herbicide effects were higher in the 2012/2013 season when compared to the 2011/2012 season.


Author(s):  
Pakeeza Iqbal ◽  
Muhammad Awais Ghani ◽  
Basharat Ali ◽  
Muhammad Shahid ◽  
Qumer Iqbal ◽  
...  

Salinity is expected to be the major destructive abiotic stress that causes ionic and oxidative damage leading to growth reduction and ultimately plant death. Glutamic acid (GA) is an α-amino acid that is used by almost all living beings in the biosynthsis of proteins. Therefore, in the present study, we tried to investigate the effect of foliar application of glutamic acid (GA) on cucumber (Cucumis sativus L.) under altered salinity levels. Cucumber seedlings were grown in plastic pots under greenhouse conditions by applying four levels of salinity (0, 3 dS/m, 6 dS/m and 12 dS/m) and two levels of foliar applied GA (0, 10 mM). Salinity was induced by mixing the salt and soil before seed sowing; however, exogenous GA was applied when the vine length was reached up to maximum height. Morphological characters showed disruptive response under saline conditions especially in indigenous cultivar (local cucumber represented as V1). Enhanced activities of superoxide dismutase (0.29 u g-1 FW), guaiacol peroxidase (3.51 u g-1 FW) and ascorbate peroxidase (0.39 µmol AsA.mg-1 Chl min-1) were observed in salt-stressed cucumber leaves. Both varieties showed unusual behavior for malondialdehyde in decreasing manner with increasing salinity levels (2.0333 µmol g-1 FW at 12dS/m in local cultivar; while, 1.98 µmol g-1 FW at 12dS/m in hybrid cultivar SSC-228). However, exogenously applied GA played a beneficial role in promoting all morphological parameters under stress with increasing scavenging abilities against reactive oxygen species. Foliar application of GA improved plant defense mechanism with minimum destruction. Remarked calculations showed that under salt stress, GA improved plant stress tolerance against salinity by maximizing the growth rate.


Land Science ◽  
2020 ◽  
Vol 2 (1) ◽  
pp. p13
Author(s):  
Kayode Moses Babatunde ◽  
Kabiru Alani Shittu ◽  
Olusogo Adeyemi Adekanmbi ◽  
Mukaila Adetunji Asimi

Heat, moisture and oxygen are important factors that has controlled seed germination, thus A 2 ×4 factorial greenhouse experiment was conducted to determine the influence of colour and thickness of nylon mulch on soil temperature, moisture, percent germination and selected growth indicators of cucumber (Cucumis sativus L.) seedlings in a completely randomized design (CRD), where the treatments; nylon colour (white and black) and thicknesses (0, 1.5, 3.0, and 4.5 mm) were replicated three times. The analysis of variance showed that the white nylon thickness had positive significant (P ≤ 0.05) influence on soil temperature, soil moisture, plant height and number of leaves, while black nylon thickness had positive significant (P ≤ 0.05) influence on soil moisture and plant height and a negative significant (P ≤ 0.01) influence on percent germination, it was also discovered that 1.5 mm thickness of the white nylon contributed significantly (p ≤ 0.05) to the parameters measured, therefore, white nylon of 1.5 mm thickness could be recommended as mulch material for cucumber production in a sandy clay soil.


2012 ◽  
Vol 32 (2) ◽  
pp. 226-235 ◽  
Author(s):  
Edilson Costa ◽  
Laura C. R. Vieira ◽  
Paulo A. M. Leal ◽  
Murillo C. de S. Jara ◽  
Priscilla N. de L. Silva

Culture environments, trays and doses of organic compost were evaluated in the formation of cucumber seedlings (Cucumis sativus L.). Five environmental conditions were tested: (A1) a greenhouse with height of 2.5 m, covered with polyethylene film, (A2) nursery with height of 2.5 m, monofilament fabric, 50% shading, (A3) nursery with height of 2.5 m, heat-reflective screen, 50% shading, (A4) nursery with a height of 1.8 m, covered with coconut tree straw and (A5) greenhouse with height of 4.0 m, covered with polyethylene film, with zenith opening and thermo-reflective cloth under the plastic. Trays of 72 (R1) and 128 (R2) cells were filled with 93% soil and 7% organic compound (S1), 86% soil and 14% organic compound (S2) and 79% soil and 21% organic compound (S3). It was used a randomized design in split-split-plot scheme, with five replicates (environments x trays x substrates). The greenhouses provide the best environments for the formation of cucumber seedlings. A tray of 72 cells is the best container, promoting more vigorous seedlings in substrate with soil and 7 or 14% organic compound.


2019 ◽  
Vol 1 (1) ◽  
pp. 16-23
Author(s):  
Rangga Kusumah ◽  
Adrianus Adrianus ◽  
Amelia A. Limbongan

The efficiency of fertilizer use is now a necessity in the management of farming in Indonesia. farmers dependents on anorganic fertilizer in the long term will results in soil and ecological damage. This research aims to find the efectivity of liquid organic fertilizer in different aplication doses on growth and production of cucumber plants. This study was conducted in Kampung Yasa Mulya, district of slope of Merauke regency. The design used in the study was a randomized design of a group with five treatments and three repeats. On the vegetative observation the treatment effect the secondary branch, but had no effect on the length of the main branch. In generative parameters, the treatment showed significant effect on the amount of potential flower, fruit diameter and fruit weight. The best results are demonstrated by D3 treatment on of the number of secondary branch with an average of 3.93 branch, and D4 treatment on observations of potential flowers rates with an average of 6.73 flower, the number of harvest fruits 16, the fruit length with an average of 16.63 cm, The diameter of the fruit with an average of 3.6 cm and on the observation of the fruit weights with an average of 296,5 g. Keywords: Liquid organic fertilizer; growth; cucumber


Author(s):  
A J Al-Sanoussi

A field experiment was carried out in the region of Sirte, Libya follows completely randomized design with five replicate to evaluate the potential of seed presoaking in different concentrations of gibberellins (0, 5μg/ml, 10 μg/ml and 20μg/ml) on cucumber growth, flowering, and yield. Application of gibberellin (GA3) significantly increased epicotyls length, and plant height (cm) during flowering and at the end of the experimental period compared to the control plants. Moreover, application of GA3 concentration inducing flowering decreased staminate flower number and increased pistillate flower number. Additionally, the promotive effect of GA3 concentration on plant growth and flowering attributes was accompanied by increased yield and its components. The results clearly showed that the foliar application of 10µg/ml GA proved to be the best choice for growing cucumber in terms of growth and yield attributes.


2021 ◽  
Vol 21 (no 1) ◽  
Author(s):  
S. Fowmina Sulaiha ◽  
A. Anburani ◽  
A. Anburani ◽  
A. Anburani

A field experiment was carried out to study the “Effect of organic manures and biofortification of selenium on physiological and flowering parameters of cucumber (Cucumis sativus L.). The study was conducted during two seasons viz., Season I (FebruaryMay 2019) and Season II (July-October 2019). The experiment was carried out following the principles of randomized block design with fifteen treatments which were replicated thrice. The organic manures used in the experiment were farmyard manure (25 t ha-1), enriched manure (1 t ha-1) along with consortium of biofertilizers (2 kg ha-1). The selenium in the form of sodium selenate (Na2 SeO4 ) was used at varying concentrations (5, 10 and 20 µg L-1) as soil and foliar application. The physiological parameters viz.,chlorophyll content index and dry matter production per plant were recorded the highest in which EM @ 1 t ha -1 + CBF @ 2 kg ha -1 + Se (20 µg L -1) as foliar was applied. The flowering parameters viz., days to first male flower appearance, node number of first male flower, number of male flowers per vinewere found to be minimum in the treatment that received FYM @ 25 t ha-1 + CBF @ 2 kg ha-1 + Se (20 µg L-1) as foliar application. The days to first female flower appearance, node number of first female flower, number of female flowers per vine, fruit set percentage andsex ratio were observed to be superior in the treatment that received EM @ 1 t ha-1 + CBF @ 2 kg ha-1 + Se (20 µg L-1) as foliar application in both the seasons respectively.


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