scholarly journals PHYSICAL PROTECTOR IN DIRECT SOWING OF BARU INFLUENCING IN THE INITIAL GROWTH OF THE SEEDLINGS

2018 ◽  
Vol 5 (4) ◽  
pp. 20-25
Author(s):  
Rogério Costa da Silva ◽  
Ana Paula Leite de Lima ◽  
Sebastião Ferreira de Lima ◽  
Guilherme Marchesini Trevizani ◽  
João Batista Leite Junior
Keyword(s):  
Seedling Survival ◽  
Block Design ◽  
Seedling Emergence ◽  
Soil Surface ◽  
Stem Diameter ◽  
Initial Growth ◽  
Randomized Complete Block Design ◽  
Number Of Leaves ◽  
Direct Sowing

The objective of this study was to evaluate the influence of using physical protectors on the emergence and initial growth of Baru seedlings in a direct sowing system. The experiment was installed in a randomized complete block design, testing the use of physical protectors (no protection, P0; plastic cup (500 mL) without the bottom, P1; laminated wood, P2), with 12 repetitions. Weekly soil temperature monitoring was carried out in the morning and in the afternoon in the period between 14 and 56 days after sowing (DAS). Daily emergence follow-up was also performed, and the stem diameter, total height and number of leaves were measured at 81 DAS. The use of physical protectors in the direct seeding of Baru interfered in the soil surface temperature on the sowing point, on the seedling emergence speed index, seedling survival, stem diameter and seedling height. Implementing protectors slowed the seedling emergence speed, however it provided higher percentages of emergence, survival and greater growth in diameter and height.

scholarly journals Emergence Rate and Initial Growth of Longan (Dimocarpus longan Lour) in Relation to Seeds Sizes

2019 ◽  
Vol 11 (5) ◽  
pp. 454
Author(s):  
Fábio Oseias dos Reis Silva ◽  
José Darlan Ramos ◽  
Ranieri Reis Laredo ◽  
Verônica Andrade dos Santos ◽  
Nathalia Vallery Tostes ◽  
...  
Keyword(s):  
Plant Height ◽  
Block Design ◽  
Seedling Emergence ◽  
Dry Mass ◽  
Stem Diameter ◽  
Initial Growth ◽  
Large Size ◽  
Randomized Block Design ◽  
Number Of Leaves ◽  
Shoot Mass

The fruit plant ‘Longan’ is considered as being native to Asia and is at present commercially explored in some regions. The objective of this work was to study the influence of seed size on seed emergence and initial seedling growth. The experiment was carried out using a randomized block design (DBC), with three treatments, namely, the seed sizes at seedling emergence according to their longitudinal diameter: small, medium and large. Each plot was composed of six seeds and five replications per treatment. The following characteristics were evaluated: emergence speed index, average time, percentage and relative frequency of emergence, leaf number, stem diameter, plant height, shoot dry mass and root dry mass. Seeds of medium and large size are those that presented satisfactory results for the characteristics related to seed emergence. The same ones stood out in relation to the small seeds for the variables percentage, average time, average speed and emergence speed index. Small seeds are not recommended for the production of ‘Longan’ seedlings, given the long period of time to emerge and the low probability of the seedlings establishing satisfactorily in the field. The medium and large seeds were the most promising for the variables number of leaves, stem diameter, plant height, dry shoot mass and dry root mass.Therefore, according to the conditions in which the present work was conducted, the use of medium and large seeds for the production of ‘Longan’ seedlings is suggested.

scholarly journals Effect of Different Rates of Rice Husk Biochar on the Initial Growth of Moringa oleifera under Greenhouse Conditions in the Savannah Ecological Zone of Ghana

2020 ◽  
Vol 8 (1) ◽  
pp. 13
Author(s):  
Ammal Abukari ◽  
Nasare Iddrisu Nasare
Keyword(s):  
Rice Husk ◽  
Moringa Oleifera ◽  
Block Design ◽  
Stem Diameter ◽  
Initial Growth ◽  
Ecological Zone ◽  
Treatment Results ◽  
Randomized Complete Block Design ◽  
Number Of Leaves ◽  
Rice Husk Biochar

This investigation was conducted to evaluate the outcome of rice husk biochar on growth performance of moringa. The study was carried-out in a greenhouse for 52 days. Different rates of rice husk biochar (150 to 350 g) was mixed with 500 g of soil. A Randomized Complete Block Design (RCBD) with 3 treatments (each of which was replicated 3 times) was used, giving a total of 12 experimental units. Plant height, stem diameter and number of leaves were assessed for each treatment. Results indicate that rice husk biochar (150 g, 250 g and 350 g) significantly increased the stem diameter of moringa as compared to that of the control 52 days after in the greenhouse. An increase in the number of leaves were observed at 150 g rice husk biochar after 40 days compared to the control. There were significant differences between treatments effects on all the parameters. Different rates of biochar certainly could constitute vital use of fertilizer to improve growth moringa in the nursery.

scholarly journals Kompetisi beberapa jenis gulma terhadap pertumbuhan awal beberapa varietas tanaman tebu (Saccharum officinarum L.)

2020 ◽  
Vol 1 (1) ◽  
pp. 21
Author(s):  
Dentin Queentiara Moelyaandani ◽  
S Setiyono
Keyword(s):  
Block Design ◽  
Saccharum Officinarum ◽  
Cyperus Rotundus ◽  
Stem Diameter ◽  
Initial Growth ◽  
High Productivity ◽  
Sugarcane Varieties ◽  
Randomized Block Design ◽  
Best Response ◽  
Number Of Leaves

Sugarcane (Sacharum officinarum L.) is a sugar-producing plant and is a food commodity that is needed by the people of Indonesia. National sugar demands are increasing every year. The low productivity of sugarcane is due to the competition of weeds which can reduce sugarcane production. To achieve high productivity, it is necessary to pay attention to the varieties used because they require certain conditions in their management. The purpose of this study was to determine the effect of varieties and types of weeds on the initial growth of sugarcane. The study was conducted from September 2018 to December 2018. The study used factorial Randomized Block Design (RBD) with two factors and four replications. The first factor consists of 4 sugarcane varieties, namely: Bululawang (V1), Red HW (V2), VMC (V3) and PS 862 (V4). The second factor type of weed consists of 2 types, namely Cyperus rotundus (N1) and Amaranthus spinosus L. (N2). The results showed that (1) There was interaction between the varieties (V) and the weed types (N) in stem diameter parameters and number of tillers, the treatment V4N1 gives the best response to stem diameter 1,31 cm and 4,25 number of tillers; (2) The treatment of varieties (V) gives affects to stem diameter and number of leaves, the treatment V4 gives the best response 5,38 to number of leaves; (3) Types of thorn spinach weeds can reduce the initial growth of sugarcane. Keywords: Varieties; weed; sugarcane

scholarly journals Saline-sodic soil and organic matter addition in the cultivation of the colored cotton ‘BRS Topázio’

2016 ◽  
Vol 37 (2) ◽  
pp. 701
Author(s):  
Magaly Morgana Lopes da Costa ◽  
Reginaldo Gomes Nobre ◽  
Geovani Soares de Lima ◽  
Hans Raj Gheyi ◽  
Francisco Wesley Alves Pinheiro ◽  
...  
Keyword(s):  
Organic Matter ◽  
Leaf Area ◽  
Plant Height ◽  
Dry Matter ◽  
Block Design ◽  
Irrigation Management ◽  
Stem Diameter ◽  
Initial Growth ◽  
Exchangeable Sodium ◽  
Number Of Leaves

he prevailing climate of the semiarid region in the northeastern region of Brazil along with inadequate irrigation management, have caused the formation of halomorphic soils, which have hampered agricultural production and environmental sustainability of this region. Therefore, this study aimed to evaluate the emergence and initial growth of the cotton cultivar ‘BRS Topázio’ cultivated in soil with different levels of exchangeable sodium percentage (ESP) and concentrations of organic matter (OM) in a greenhouse from April to June 2014. The experiment was set in a randomized block design in a 5 × 4 factorial scheme, with three replicates, and the treatments consisted of five ESP levels (13.6, 22.4, 30.1, 39.0, and 48.0) and four OM concentrations (0, 5, 10, and 15% based on soil volume). Soils with an ESP ranging from 13.6 to 48.0 did not interfere with the emergence and number of leaves of cotton at 10 days after seeding (DAS). At 44 DAS, in the period preceding the flowering stage, ESPs ranging from 27 to 30 promoted greater plant height, stem diameter, and shoot fresh and dry matter. Increasing OM increased the emergence percentage and emergence speed index and, at 44 DAS, increased plant height, stem diameter, and shoot fresh and dry matter. Increasing OM mitigated the effect of the exchangeable sodium up to an ESP of 30 on the number of leaves, plant height, stem diameter, and leaf area at 10 DAS, and up to mean ESPs of 28.5 and 34.0 for the number of leaves and leaf area, respectively, at 44 DAS.

scholarly journals Effect of Pre-germination seed treatments on germination of seeds and initial growth of Mango (Mangifera indica L)

2020 ◽  
Vol 6 (2) ◽  
pp. 60-67
Author(s):  
Sumaila SHU-AIB JAKPA ◽  
George NYARKO ◽  
Kodzo Hamenya KEGLO
Keyword(s):  
Mangifera Indica ◽  
Block Design ◽  
Germination Percentage ◽  
Leaf Length ◽  
Stem Diameter ◽  
Initial Growth ◽  
Seed Treatments ◽  
Number Of Leaves ◽  
Seed Coats ◽  
Better Than

An experiment was conducted to find out the effects of some pre-germination seed treatments on germination of mango (Mangifera indica L.) seeds and initial growth of mango. Seeds obtained from a local mango variety at Nyankpala were sown in polyethylene bags filled with topsoil for the experiment. The four treatments used were; seeds sown without seed coats (SW), seeds without seed coats soaked in cool water of 5ºC for 12 hours before sowing (SSC), seeds without seed coats soaked in warm water of 15ºC for one minute before sowing (SSW) and seeds with seed coats sown to serve as the control (SC). Randomized Complete Block Design was used and each treatment was replicated three times. The parameters measured were germination percentage, height of seedlings, leaf length of seedlings, number of leaves and stem diameter of seedlings. Data obtained were analyzed using Analysis of Variance and the differences were determined by using Tukey-Kramer multiple comparison test. All the treated seeds recorded more than 80% of germination three weeks after sowing, with SSW recording the highest value of 91%. In general, the treated seeds performed significantly (p < 0.05) better than the control for the parameters studied. SSW is recommended for adoption since it performed optimally better than the other treatments in terms of number of leaves (7.67), leaf length (14.71 cm), leaf width (4.41 cm), stem diameter (1.82 cm) and plant height 20.86 cm).

scholarly journals Initial growth of zucchini irrigated with saline water in soil with biofertilizers

2021 ◽  
Vol 15 ◽  
Author(s):  
Juvenaldo Florentino Canjá ◽  
Josimar De Azevedo ◽  
Geocleber Gomes de Sousa ◽  
Clarissa Lima Magalhães ◽  
Thales Vinícius De Araújo Viana
Keyword(s):  
Salt Stress ◽  
Plant Height ◽  
Irrigation Water ◽  
Aerial Part ◽  
Plant Biomass ◽  
Block Design ◽  
Dry Mass ◽  
Stem Diameter ◽  
Initial Growth ◽  
Number Of Leaves

Zucchini culture is slightly sensitive to salinity and is among the ten vegetables of highest economic value, with characteristics of precocity and easy cultivation. These characteristics are some of the reasons for the expansion of its cultivation among small producers. Thus, the objective was to evaluate the effect of different levels of salinity in the irrigation water and biofertilizer types on the initial growth of the zucchini (Cucurbita pepo L.) culture. The experiment was carried out in the full sunlight in a randomized block design, in a 5x2 factorial arrangement. The treatments consisted of a combination of five types of biofertilizers (quail, sheep, mixed, bovine, and crab) and two salinity levels of the irrigation water (0.8 and 2.5 dS m-1), with five replicates. At 30 days after transplanting, the following variables were evaluated: electrical conductivity of the substrate, plant height, number of leaves, roots length, stem diameter, leaf area, chlorophyll content, dry mass of the aerial part, root dry mass, and total dry mass. Salt stress negatively interferes with the accumulation of zucchini plant biomass. Quail, bovine, and sheep biofertilizers are more efficient about plant height, number of leaves, and stem diameter. The sheep biofertilizer attenuates the salt stress for the dry mass of the aerial part, the root, and the total dry mass.

scholarly journals Evaluation of Different Organic Fertilizers in the Sustainable Cultive of Coriander

2019 ◽  
Vol 11 (6) ◽  
pp. 299
Author(s):  
Rafael Santiago da Costa ◽  
Letícia Kenia Bessa de Oliveira ◽  
José Lucas Guedes dos Santos ◽  
Aiala Vieira Amorim ◽  
Jorge Cá ◽  
...  
Keyword(s):  
Block Design ◽  
Leaf Length ◽  
Point Of View ◽  
Stem Diameter ◽  
Organic Fertilizers ◽  
Size Number ◽  
Randomized Complete Block Design ◽  
Different Types ◽  
Number Of Leaves ◽  
Root Size

The excessive use of agrochemicals in agriculture has been causing irreversible environmental impacts, from this point of view, organic farming appears as an economically viable alternative to minimize these impacts. So, the objective of this work was to evaluate the effect of different types organic fertilizers in the development and production of coriander harvested at different epochs. The experiment was conducted during the period from August to October 2016, in an area of the experimental farm of University of International Integration of Afro-Brazilian Lusophony. The experimental design was a randomized complete block design, in a 5 &times; 4 factorial scheme, consisting of five organic fertilizers and four harvesting epochs (28, 35, 42 and 49 days after planting-DAP) and five blocks. The variables stem diameter, plant height, root size, number of leaves, leaf length and productivity were evaluated. All the analyzed variables responded significantly by the F test, either for the qualitative factor, fertilizer sources, or the quantitative, epochs of evaluation. Regarding the cultivation epochs, when the first evaluation period (28 DAP) was compared with the last (49 DAP), it was verified that the variables presented linear responses over time, with increases of 34.4% for height , 29.5% for stem diameter, 37.07% for root length and 64.44% for production. In relation to the fertilizer sources, in general, the cattle manure provided a greater growth and production of the coriander plants, being therefore the most suitable for the cultivation.

scholarly journals Pemanfaatan Limbah Biogas Sapi sebagai Media Tanam Perbenihan Jambu Biji

2019 ◽  
Vol 21 (2) ◽  
pp. 39
Author(s):  
Aryana Citra Kusumasari ◽  
Muryanto Muryanto
Keyword(s):  
Plant Height ◽  
Block Design ◽  
Organic Fertilizer ◽  
Stem Diameter ◽  
Plant Performance ◽  
Media Composition ◽  
Central Java ◽  
Randomized Complete Block Design ◽  
Number Of Leaves

<p>Cow biogas waste can be used as guava organic fertilizer. The objective of this research was to determine the composition of the planting media from biogas waste for the best guava seedling. This research was conducted in Ungaran Barat, Semarang, Central Java from July-December 2015. The method used was Randomized Complete Block Design (RCBD) one factor that is the ratio of media compositions of 5 treatments, 4 replications and 10 plants per treatment (200 polybag seedlings of citrus plants). The treatments tested were biagas waste at 0%, 11%, 20%, 27% and 33%. Parameters observed were plant height, stem diameter, number of leaves, number of fruits. The results showed that the higher the use of biogas waste as guava seedling media, the better the plant performance. The best media composition of biogas waste for guava seedling is 33% biogas waste organic fertilizer.</p>

scholarly journals Effects of Gamma Irradiation on Agromorphological Characteristics of Okra (Abelmoschus esculentus L. Moench.)

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Aaron Tettey Asare ◽  
Francis Mensah ◽  
Samuel Acheampong ◽  
Elvis Asare-Bediako ◽  
Jonathan Armah
Keyword(s):  
Seedling Survival ◽  
Block Design ◽  
Leaf Length ◽  
Growth And Yield ◽  
Randomized Complete Block Design ◽  
Number Of Leaves ◽  
Gamma Irradiated ◽  
Higher Doses ◽  
100 Seed Weight ◽  
Number Of Branches

Cultivation of okra in Ghana is challenged by low yield due to lack of improved varieties. Gamma irradiated okra seeds can generate genetic variability to improve the crop. Samples of 150 seeds, each of okra genotype, UCCC6, were irradiated with 400 Gy to 1000 Gy using cobalt 60 source at a dose rate exposure of 121.58 Gy/hr. There were 40 stands comprising single plant per stand in three replications per treatment in a randomized complete block design outlay. Seedling survival, plant height, number of leaves, stem diameter, number of branches, leaf length and width, days to 50% flowering, number of fruits, length and weight of fruit, number of seeds, and 100-seed weight decreased significantly (P≤0.05) with increasing doses of gamma rays. Seedling survival was highest (88%) at 400 Gy, followed by control (81%). However, 600 Gy, 800 Gy, and 1000 Gy had 61%, 41%, and 17% seedling survival, respectively, with LD50 at 720 Gy. Significant (P≤0.05) correlations existed between growth and yield components. Optimum growth and yield in okra were induced by 400 Gy but the higher doses had growth retardation effects and the induced variability can be assessed at M2 generation.

scholarly journals Organic compost and wastewater on the initial growth of oilseed plants

2016 ◽  
Vol 20 (6) ◽  
pp. 501-506
Author(s):  
Júlia S. Pereira ◽  
Jean P. Guimarães ◽  
Riuzuani M. B. P. Lopes ◽  
Maria S. S. de Farias ◽  
Vera L. A. de Lima ◽  
...  
Keyword(s):  
Castor Bean ◽  
Block Design ◽  
Domestic Wastewater ◽  
Stem Diameter ◽  
Initial Growth ◽  
Randomized Block Design ◽  
N Dose ◽  
Number Of Leaves ◽  
Organic Compost

ABSTRACT The study was conducted in two experiments in greenhouse of the CTRN/UFCG, aiming to evaluate the use of organic compost from household garbage and irrigation with treated domestic wastewater on the growth of castor bean 'BRS-188/Paraguaçu' and sunflower 'Embrapa 122-V2000'. Both experiments were conducted a randomized block design in 6 x 2 factorial scheme, with three replicates, which corresponded to six doses of organic compost (0, 1.2, 2.0, 2.8, 3.6 and 4.4 kg pot-1, equivalent to 0, 60, 100, 140, 180 and 220 kg N ha-1) and two types of water (freshwater and wastewater). It was found that the organic compost doses significantly influenced the growth of sunflower and castor bean in all evaluations, except for stem diameter. The maximum plant heights were 91.7 cm for castor bean and 85.2 cm for sunflower at the doses of 180 and 220 kg N ha-1, respectively. The highest values of number of leaves were obtained for the N dose of 220 kg ha-1 in both crops. The influence of wastewater on growth variables was only observed in the final evaluations, for both sunflower and castor bean.

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