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

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.

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

Revista Agro mbiente On-line ◽

10.18227/1982-8470ragro.v15i0.6910 ◽

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.

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Effect of gibberellic acid and the biostimulant stimulate® on the initial growth of tamarind

Revista Brasileira de Fruticultura ◽

10.1590/s0100-29452012000100004 ◽

2012 ◽

Vol 34 (1) ◽

pp. 8-14 ◽

Cited By ~ 3

Author(s):

Ana Cristina Vello Loyola Dantas ◽

João Mariano de Oliveira Queiroz ◽

Elvis Lima Vieira ◽

Vanessa de Oliveira Almeida

Keyword(s):

Aqueous Solution ◽

Plant Growth ◽

Gibberellic Acid ◽

Plant Height ◽

Root Length ◽

Block Design ◽

Dry Mass ◽

Stem Diameter ◽

Initial Growth ◽

Randomized Block Design

Plant growth regulators and biostimulants have been used as an agronomic technique to optimize the production of seedlings in various crops. This study aimed to evaluate the influence of gibberellic acid and the biostimulant Stimulate® on the initial growth of tamarind (Tamarindus indica L.). The experiments were conducted in a nursery with 50% shading, in a randomized block design with five replications and five plants per plot. Thirty eight days after sowing, the leaves were sprayed seven times a day with 0.0 (control), 0.8, 1.6, 2.4 and 3.2 mL of gibberellic acid L-1 aqueous solution and with 0.0 (control), 6.0,12.0, 18.0, and 24.0 mL Stimulate® L-1 aqueous solution. Stem diameter (SD), plant height (PH), longest root length (LRL), shoot dry mass (SDM), root dry mass (RDM) and RDM:SDM ratio were evaluated ninety days after sowing. Variance and regression analysis showed that GA3 at 4% promoted plant growth (height), but had no significant effect on stem diameter, longest root length, shoot and root dry mass and the RDM:SDM ratio. On the other hand, all concentrations of Stimulate® significantly increased plant height and shoot and root dry mass of tamarind seedlings.

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

Jurnal Proteksi Tanaman Tropis ◽

10.19184/jptt.v1i1.15585 ◽

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

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Effects of plant growth regulators in heliconia ‘Red Opal’

Ornamental Horticulture ◽

10.14295/oh.v22i3.947 ◽

2016 ◽

Vol 22 (3) ◽

pp. 301

Author(s):

Ana Cecilia Ribeiro de Castro ◽

Fernando José Hawerroth ◽

Carlos Alberto Kenji Taniguchi ◽

Tiago Freitas Silva ◽

Nazaré Suziane Soares

Keyword(s):

Leaf Area ◽

Plant Height ◽

Growth Regulators ◽

Growth Regulator ◽

Block Design ◽

Dry Mass ◽

Potted Plants ◽

Randomized Block Design ◽

Number Of Leaves ◽

One Year

The objective of this study was to evaluate growth regulators with purpose of reducing the size of heliconia ‘Red Opal’ potted plants. The experiment was carried out in randomized block design with five treatments (trinexapac-ethyl and paclobutrazol at rates of 37.5 and 75.0 mg of active ingredient per pot and control without growth regulator) and five replicates. The treatments were applied 40 days after planting the rhizomes in pots filled with soil. Thirty and 150 days after the growth regulator application, plant height, number of leaves and shoots, petioles length and leaf area were evaluated. One year after planting the rhizomes in pots the number of inflorescence and leaves (leaves, sheathing leaf bases and inflorescences) and rhizomes (rhizomes and roots) dry mass were determined. Trinexapac-ethyl had no differences compared to the control in any of the variables evaluated. Paclobutrazol proved effective in reducing plant height, leaf area and petiole length and increase in number of leaves and shoots but the effect was temporary. Also, it did not affect the inflorescences production and leaves and rhizomes dry mass. Paclobutrazol is efficient to promote height reduction and to increase the number of shoots in heliconia ‘Red Opal’ potted plants without affect the inflorescence formation but its effects is temporary.

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

Semina Ciências Agrárias ◽

10.5433/1679-0359.2016v37n2p701 ◽

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.

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PENGARUH POPULASI DAN PEMBERIAN PUPUK BIO SLURRY KOTORAN SAPI PADA PERTUMBUHAN DAN HASIL TANAMAN OKRA (Abelmoschus Esculentu L. Moench)

VIABEL Jurnal Ilmiah Ilmu-Ilmu Pertanian ◽

10.35457/viabel.v13i1.700 ◽

2019 ◽

Vol 13 (1) ◽

pp. 45-56

Author(s):

Adi Taufiq Nurrohman

Keyword(s):

Plant Height ◽

Block Design ◽

Organic Fertilizer ◽

Stem Diameter ◽

Organic Fertilizers ◽

Quality Data ◽

Plant Spacing ◽

Randomized Block Design ◽

Affected Plant ◽

Number Of Leaves

This study aims to 1) To determine the interaction of organic fertilizers and plant spacing on the growth and production of okra plants. 2) To determine the best dose of organic fertilizer on the growth and production of okra plants. 3) To determine the appropriate planting spacing for the growth and production of okra plants. This research was conducted using factorial randomized block design (RBD) with 2 factors, the first factor was plant spacing (A) consisting of 3 levels, namely: 60x40 cm (A1), 60x50 cm (A2), 60x60 cm (A3) . The second factor was the dose of organic fertilizer (J) which consists of 3 levels, namely 5 tons / ha-1 (J1), 10 tons ha-1 (J2), 15 kg ha-1 (J3). The variables observed included plant height, stem diameter, number of leaves, total pods, total pod weight and pod quality. Data were analyzed using analysis of variance (ANOVA) level of 5% and further testing with Duncan's Multiple Range Test (DMRT). The results showed that: There was no significant interaction between organic fertilizer dosage and plant spacing on the growth and production of okra plants. Dosage treatment of organic fertilizer Bio slurry 15 Ton ha-1 (A3) significantly affected plant height, stem diameter, the highest plant height of 55.6411, 72.5322 and 77.0889 at the age of 6.7 and 8 MST. The highest stem diameter is 0.8689, 1.7844, 2.1289, 2, 0789 at the age of 3,6,7 and 8 MST. the best number of leaves is 27,706 age 8 MST. The treatment of plant spacing of 60x40 cm (A1) had a significant effect on the total number of pods and total pod weight, the total number of pods was 23.8569 and the total pod weight was 275.85 g in all harvests

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PENGAPLIKASIAN RADIASI ELEKTROMAGNETIK TERHADAP PERTUMBUHAN VEGETATIF TANAMAN CABAI MERAH (Capsicum Annum L.)

J-PEN Borneo : Jurnal Ilmu Pertanian ◽

10.35334/jpen.v2i2.1509 ◽

2020 ◽

Vol 2 (1) ◽

Author(s):

Bagus Santoso ◽

Amarullah Amarullah ◽

Dwi Santoso

Keyword(s):

Electromagnetic Radiation ◽

Plant Height ◽

Block Design ◽

Leaf Length ◽

Stem Diameter ◽

Capsicum Annum ◽

Randomized Block Design ◽

Number Of Leaves ◽

Screen House ◽

Number Of Branches

ABSTRACT Chili Plants (Capsicum annum L.) originating from the tropics and subtropicsAmericas, especially Colombia, South America, and continue to spread to Latin America. Evidence of chili cultivation was first discovered in Peru's historical siteand leftover seeds that are more than 5000 years old BC in a cave in Tehuacan, Mexico. The spread of chili to the whole world including countries in Asia, like Indonesia carried out by Spanish and Portuguese traders. The purpose of this study was to determine the effect of electromagnetic radiation on the growth and yield of red chilies in the city of Tarakan.This research was conducted from September 2018 to January 2019, at the screen house of the Faculty of Agriculture, Borneo Tarakan University. This study was prepared using factorial Randomized Block Design (RBD) with 5 treatments repeated 5 times. The factors studied were large electromagnetic radiation 56 microtesla with exposure time (P0) 0 minutes, (P1) 20 minutes, (P2) 40 minutes, (P3) 60 minutes, (P4) 80 minutes. Observation parameters; plant height, number of leaves, leaf length, leaf width, stem diameter and number of branches. Analysis of variance using variance ANOVA with a confidence level of 95% and if it is significantly different it will be continued with DMRT further testing.The results of the study show that: 1) Observation parameters that showed statistically significant differences were parameters of plant height, number of branches and number of leaves while parameters that did not show different results were parameters of leaf length, leaf width and stem diameter., 2) The best treatment for each observation parameter is P2 treatment (exposure to electromagnetic radiation for 40 minutes), and the lowest treatment is treatment P0 (without exposure to electromagnetic radiation). Suggestions from this study should be carried out further research on the use of electromagnetic radiation in the vegetative phase until the results of red chili plants (Capsicum annum L.)Keywords: chili, electromagnetics radiation, Randomized Block Design ABSTRAK Tanaman cabai (Capsicum annum L.) berasal dari dunia tropika dan subtropika Benua Amerika, khususnya Colombia, Amerika Selatan, dan terus menyebar ke Amerika Latin. Bukti budidaya cabai pertama kali ditemukan dalam tapak galian sejarah Peru dan sisaan biji yang telah berumur lebih dari 5000 tahun SM di dalam gua di Tehuacan, Meksiko. Penyebaran cabai ke seluruh dunia termasuk negara-negara di Asia, seperti Indonesia dilakukan oleh pedagang Spanyol dan Portugis. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh radiasi elektromagnetik terhadap pertumbuhan dan hasil tanaman cabai merah di kota Tarakan. Penelitian ini dilaksanakan pada tahun 2018, di screen house Fakultas Pertanian Universitas Borneo Tarakan. Penelitian ini disusun dengan menggunakan Rancangan Acak Kelompok (RAK) faktorial dengan 5 perlakuan diulang sebanyak 5 kali. Faktor yang diteliti yaitu besar radiasi elektromagnetik 56 mikrotesla dengan lama pemaparan (P0) 0 menit, (P1) 20 menit, (P2) 40 menit, (P3) 60 menit, (P4) 80 menit. Parameter pengamatan; tinggi tanaman, jumlah daun, panjang daun, lebar daun, diameter batang dan jumlah cabang. Analisis ragam menggunakan sidik ragam Anova dengan tingkat kepercayaan 95% dan apabila berbeda nyata maka akan dilanjut dengan uji lanjut DMRT. Hasil penelitian menunjukkan bahwa: 1) Parameter pengamatan yang menunjukkan hasil berbeda nyata secara statistik adalah parameter tinggi tanaman, jumlah cabang dan jumlah daun sedangkan parameter yang tidak menunjukkan hasil yang berbeda nayata adalah parameter panjang daun, lebar daun dan diameter batang, 2) Perlakuan terbaik untuk setiap parameter pengamatan adalah perlakuan P2 (pemaparan radiasi elektromagnetik selama 40 menit), dan perlakuan terendah adalah perlakuan P0 (tanpa pemaparan radiasi elektromagnetik). Saran dari penelitian ini sebaiknya dilakukan penelitian lanjutan mengenai penggunaan radiasi elektromagnetik pada fase vegetatif sampai hasil tanaman cabai merah (Capsicum annum L.)Kata kunci : cabai merah, radiasi elektromagnetik, Rancangan Acak Kelompok

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Aplikasi beberapa konsentrasi air kelapa untuk meningkatkan pertumbuhan bibit kakao kultivar ICCRI 08 H

Kultivasi ◽

10.24198/kultivasi.v19i2.26671 ◽

2020 ◽

Vol 19 (2) ◽

Author(s):

Santi Rosniawaty ◽

Cucu Suherman ◽

Rija Sudirja ◽

Dimas Nur Annisa Istiqomah

Keyword(s):

Plant Height ◽

Block Design ◽

Stem Diameter ◽

Coconut Water ◽

Experimental Field ◽

Randomized Block Design ◽

Number Of Leaves ◽

Cocoa Seedlings

AbstrakKultivar ICCRI 08 H merupakan kultivar unggul baru kakao yang tetap harus dipelihara selama pembibitan. Pupuk anorganik yang digunakan untuk menyediakan nutrisi bibit dapat menyebabkan pemadatan tanah, sehingga perlu suplai nutrisi alami, seperti nutrisi yang berasal dari air kelapa. Penelitian ini bertujuan untuk mengetahui manfaat air kelapa dan pengurangan dosis urea dalam meningkatkan pertumbuhan bibit kakao. Penelitian dilakukan di Kebun Percobaan Ciparanje, Fakultas Pertanian, Universitas Padjadjaran, Kabupaten Sumedang. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) dengan 10 perlakuan yang diulang 3 kali. Perlakuan yang digunakan adalah sebagai berikut: Kontrol (2 g Urea), 25% air kelapa, 50% air kelapa, 75% air kelapa, 25% air kelapa + urea 2 g, 50% air kelapa + urea 2 g, 75% air kelapa + urea 2 g, air kelapa 25% + urea 1 g, air kelapa 50% + urea 1 g; dan air kelapa 75% + urea 1 g. Hasil penelitian menunjukkan bahwa pemberian air kelapa mampu meningkatkan pertumbuhan bibit kakao kultivar ICCRI 08 H. Air kelapa mampu mengurangi penggunaan urea dalam meningkatkan pertumbuhan bibit kakao kultivar ICCRI 08 H. Perlakuan air kelapa 50% menunjukkan pengaruh terbaik pada variabel tinggi tanaman, diameter batang, jumlah daun, dan luas daun.Kata kunci: pembibitan, air kelapa, kakao AbstractThis study aimed to determine the benefits of coconut water and the reduction of urea doses in increasing the growth of cacao seedling. The study was conducted at the Ciparanje Experimental field, Faculty of Agriculture, Padjadjaran University, Sumedang Regency. The study used randomized block design (RBD) with 10 treatments which were repeated 3 times. The treatments were: Control (2 g urea), 25% coconut water, 50% coconut water, 75% coconut water, 25% coconut water + 2 g urea, 50% coconut water + 2 g urea, 75% coconut water + 2 g urea, 25% coconut water + 1 g urea, 50% coconut water + 1 g urea; and coconut water 75% + 1 g urea. The results showed that coconut water increased the growth of cocoa seedlings cultivar ICCRI 08 H. Coconut water could reduced urea requirement in increasing the growth of cocoa seedlings ICCRI 08 H. Concentration of 50% coconut water showed the best effect on plant height, stem diameter, number of leaves, and leaf area.Keywords : seedling, coconut water, cacao

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

JOURNAL OF NEOTROPICAL AGRICULTURE ◽

10.32404/rean.v5i4.2726 ◽

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.

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Growth Response of Local Cassava to Cutting Models and the Number of Buds

Caraka Tani Journal of Sustainable Agriculture ◽

10.20961/carakatani.v36i2.37746 ◽

2021 ◽

Vol 36 (2) ◽

pp. 379

Author(s):

Tri Mulya Hartati ◽

Chumidach Roini ◽

Indah Rodianawati

Keyword(s):

Leaf Area ◽

Plant Height ◽

Growth Parameters ◽

Block Design ◽

Stem Diameter ◽

Food Sources ◽

Local Varieties ◽

Average Value ◽

Randomized Block Design ◽

Number Of Leaves

Cassava is one of the local food sources that are widely available in almost every region. Cuttings are used to plant cassava, and these cuttings will produce a number of roots and buds. The main purpose of this study was to evaluate the effect of cuttings slices model and the number of buds on the growth of Tobelo local varieties of cassava. This study employed a factorial Randomized Block Design (RBD), with the cuttings slices model as the first factor, consisting of three levels, namely: flat slice, one-sided slice and two-sided slice. The second factor is the number of buds, which is divided into three levels, 1 bud, 2 buds and 3 buds. The observation parameters in this study include plant height, number of leaves, stem diameter and leaf area. The results have revealed that the model of two-sided sliced cuttings combined with the number of one bud is the most effective treatment in improving the growth of cassava plants of Tobelo local varieties. The models of one-sided and two-sided oblique cuttings slices yield the highest average value for the parameters of plant height, stem diameter and leaf area, while the treatment with one bud tends to give the best results for the growth parameters.

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