scholarly journals Perbaikan Pembungaan Pamelo melalui Aplikasi Strangulasi dan Zat Pemecah Dormansi

2017 ◽  
Vol 7 (3) ◽  
pp. 139
Author(s):  
Slamet Susanto ◽  
Maya Melati ◽  
Herik Sugeru
Keyword(s):  
Carbohydrate Content ◽  
Research Station ◽  
Dormancy Breaking ◽  
Randomized Design ◽  
Breaking Dormancy ◽  
Two Factors ◽  
The Wire ◽  
Research Experiment ◽  
Agriculture Research Institute ◽  
And Control

<p>ABSTRACT<br />Pummelo productivity is still low, therefore efforts should be made to increase its flowering and production. The objective of study was to determine the effectiveness of strangulation combined with the application of breaking dormancy substances to improve flowering of pummelo. The experiment was conducted in January to November 2015, at the Cikabayan Experimental Research Station, IPB. The carbohydrate and nitrogen analysis was done in laboratory of Postharvest Agriculture Research Institute, Bogor. Three-year-old pummelo grown in field was subjected for this research. Experiment used a completely randomized design (CRD) with two factors. The first factor was treatment to stimulate flowering, consisted of 3 levels i.e. single strangulation, double strangulation and control, and the second factor was the use of dormancy breaking substances, consisted of 3 types i.e. KNO3, Ethepon and BAP. Strangulation was performed by pressing the wire with a diameter of 2.0 mm into stem as deep as the diameter of the wire. Strangulation was done simultaneously and then released after 3 months. Dormancy breaking substance was applied immediately after releasing the wire for strangulation with the concentration of 200 ppm KNO3, 100 ppm Ethepon or 100 ppm BA. Treatments were replicated 4 times. The results showed that single and double strangulation treatments for 3 months were an effective way to induce flowering of young pummelo trees. Double strangulation produced more flowers as compared to single strangulation.<br />Increased carbohydrate content and C/N ratio in leaves were observed on flower induced trees. Strangulation treatment for 3 months can increase flowering of young pummelo trees. Application of dormancy breaking substances did not have any effect on flowering induction in pummelo.</p><p>Keywords: carbohydrate content, dormancy breaking substance, flower induction, pummelo, strangulation</p><p>ABSTRAK<br />Produktivitas pamelo masih rendah sehingga perlu upaya peningkatan pembungaan dan produksinya. Penelitian ini bertujuan untuk mengetahui efektivitas strangulasi yang dikombinasikan dengan aplikasi zat pemecah dormansi dalam meningkatkan pembungaan jeruk pamelo. Penelitian dilaksanakan pada bulan Januari sampai Nopember 2015, bertempat di Kebun Percobaan IPB Cikabayan. Analisis karbohidrat dan nitrogen dilakukan di laboratorium BB Pasca Panen, Bogor. Percobaan menggunakan tanaman jeruk pamelo “Nambangan’ berumur 3 tahun dengan Rancangan Acak Lengkap (RAL) dua faktor. Sebagai faktor pertama yaitu perlakuan untuk menstimulasi pembungaan, terdiri atas 3 taraf perlakuan yaitu perlakuan strangulasi tunggal, strangulasi ganda dan kontrol, dan sebagai faktor kedua adalah penggunaan zat pemecah dormansi terdiri atas 3 jenis yaitu KNO3, Ethepon dan BAP. Masing-masing perlakuan diulang 4 kali sehingga terdapat 36 unit percobaan. Strangulasi dilaksanakan dengan melilitkan kawat dengan diameter 2.0 mm pada batang dengan menekan kawat ke batang sedalam diameter kawat tersebut. Strangulasi dilakukan serentak pada batang, strangulasi dilepas setelah 3 bulan kemudian. Zat pemecah dormansi diaplikasikan segera setelah pelepasan kawat strangulasi dengan konsentrasi masing-masing 200 ppm untuk KNO3, 100 ppm untuk Ethepon atau 100 ppm untuk BAP. Hasil penelitian menunjukkan perlakuan strangulasi selama 3 bulan merupakan cara efektif menginduksi pembungaan tanaman jeruk pamelo. Perlakuan strangulasi ganda menghasilkan bunga lebih banyak dibandingkan dengan strangulasi tunggal. Tanaman yang telah terinduksi menunjukkan tingginya kandungan karbohidrat pada tajuk tanaman sehingga meningkatkan rasio C/N. Perlakuan zat pemecah dormansi tidak memberikan pengaruh yang nyata terhadap pembungaan jeruk pamelo.<br />Kata kunci: kandungan karbohidrat, pamelo, pembungaan, strangulasi, zat pemecah dormansi</p>

scholarly journals Propagation Studies in Passion Fruit (Passiflora edulis Sims.) Using Cuttings

2020 ◽  
pp. 57-63
Author(s):  
Annjoe V. Joseph ◽  
A. Sobhana
Keyword(s):  
Passion Fruit ◽  
Research Station ◽  
Passiflora Edulis ◽  
Survival Percentage ◽  
Planting Material ◽  
Randomized Design ◽  
Two Factors ◽  
Rooting Of Cuttings ◽  
Number Of Leaves ◽  
And Control

Passion fruit is a high value export oriented crop, which is gaining popularity among farmers. One of the constraints in expansion of this crop is availability of quality planting material. Passion fruit is propagated through seed, cutting and grafting. Among these methods, cuttings encourage the production and multiplication of true to type planting material. Therefore, a study was conducted at the Fruits Crops Research Station, Kerala Agricultural University, Vellanikkara, Thrissur, during August 2019 - November 2019 to evaluate the effect of different concentrations of NAA and number of nodes on the rooting of cuttings and survival percentage. The experiment was laid out in completely randomized design with twenty treatments and two replications. Experiment consisted of two factors, viz. NAA concentration (200 ppm, 400 ppm, 600 ppm, 800 ppm and control) and number of nodes (one node, two node, three node and four node), following quick dip method. The study revealed that there was significant variation among the treatments. When the effect of number of nodes alone was considered, four noded cutting had the maximum survival percentage, and higher root and shoot parameters. Improved survival percentage, and enhanced root and shoot characteristics were noticed with the increasing NAA concentration. From the present study, it was concluded that combined effect of more number of nodes and higher NAA concentration had profound effect on survival percentage, shoot length, root length, number of leaves and leaf area and four noded cuttings dipped in 800 ppm NAA, for 3-5 seconds was found to be the best successful propagule for passion fruit.

scholarly journals Sugar Cane Cake and Mineral Fertilizers on Coconut (Cocos nucifera Linn.) Seedlings

CORD ◽  
2009 ◽  
Vol 25 (2) ◽  
pp. 11
Author(s):  
Luiz Gonzaga Bione Ferraz ◽  
Ademar Barros da Silva ◽  
José Nunes Filho ◽  
Antonio Raimundo de Sousa ◽  
Venézio Felipe dos Santos
Keyword(s):  
Sugar Cane ◽  
Chemical Elements ◽  
Cocos Nucifera ◽  
Block Design ◽  
Organic Fertilizer ◽  
Mineral Fertilizers ◽  
Research Station ◽  
Linear Quadratic ◽  
Two Factors ◽  
And Control

High quantities of mineral fertilizers (MF) are required for good coconut seedling production, whose up dated recommendation is 232 grams per seedling. The objective of this work was to assess the substitution of the MF by organic fertilizer as sugar-cane filter cake (SCFC) on coconut seedlings in polybag. The SCFC is an organic residue from sugar-cane manufacturing composed of various chemical elements, as for instance: nitrogen, phosphorus, potassium, calcium and magnesium. The experiment was carried out at the Itapirema Research Station, Goiana, Pernambuco State, Brazil, in a randomized complete block design, with factorial disposition 52, replicated three times, with six tall coconut seedlings per plot. The treatments were the combinations of five doses of MF (in g seedling-1): 46.25; 92.50; 138.75; 185.00 and control, using urea, simple superphosphate and potassium chloride at the proportion of 1:2:3, respectively, and five doses of SCFC (in kg polybag-1): 0.5; 1.0; 1.5; 2.0 and control. Eight months after young coconut seedlings replacement to the polybags the following parameters were measured: collar girth (CG), leaf area (LA), number of live leaves (NL) and plant height (PH). For leaf nutritional diagnosis and growing media chemical and physical analyses, samples were collected. There was significance for the two factors, individually, to all parameters. The trend analysis revealed linear, quadratic and cubic responses, according to the studied character. The mixture of 0.5 kg of SCFC polybag-1 plus 46.25 g of the MF was sufficient for obtaining seedlings of excellent quality and promoting a fertilizers economy around 80%. According to other results from this research, the number of seedlings per plot and the critical level of nutrients in the leaf of coconut seedlings should be reviewed.

scholarly journals Efek Toksik Minyak Atsiri Limbah Daun Kayu Manis (Cinnamomum burmanii (Nees & T.Nees) Blume.) dalam Mengendalikan Helopeltis antonii Signoret pada Tanaman Kakao secara in Vitro

2019 ◽  
Vol 6 (1) ◽  
pp. 51
Author(s):  
Roza Puspita ◽  
Resti Rahayu ◽  
Mairawita Mairawita ◽  
Nasril Nasir ◽  
Nurmansyah Nurmansyah
Keyword(s):  
Medicinal Plants ◽  
Essential Oil ◽  
Toxic Effect ◽  
Lethal Concentration ◽  
Research Station ◽  
Green House ◽  
Randomized Design ◽  
West Sumatra ◽  
And Control

The toxic effect of essential oil from waste  cinnamon leaf (Cinnamomum burmanii)  against pests of cocoa fruit Helopeltis antonii (Hemiptera; Miridae),  has been done in Green House, Research Station Spice and Medicinal Plants, Laing Solok, West Sumatra in April to May 2016. The experiment aimed to determine repellant and lethal  concentrations of essential oil from waste s cinnamon leaf (C. burmanii) for H. antonii. There were 5  treatments  arranged in Complately Randomized Design with 4 replications. The treatments tested were essentialoil concentration f  (0.05 ml/tube, 0.1 ml/tube, 0.2 ml/tube and 0.5 ml/tube) and control. The results showed that the effective repellent concentration were 0,05 ml/tube and 0,1 ml/tube which repelled  H. antonii  0,03 % . The effecive lethal concentration was  0,05 ml/tube which killed  H. antonii  57,50 %. Concentration used was  highly  toxic which killed l H. Antonii within  six hours so of the repellent nature was notobserved.

scholarly journals Effect of different treatments of ethrel on ripening behaviour and post- harvest quality of mango (Mangiferaindica L.) during storage

2017 ◽  
Vol 9 (1) ◽  
pp. 85-93
Author(s):  
Sukhjit Kaur
Keyword(s):  
Specific Gravity ◽  
Soluble Solids ◽  
Moisture Loss ◽  
Research Station ◽  
Fruit Colour ◽  
Ambient Conditions ◽  
Post Harvest ◽  
Randomized Design ◽  
And Control

An experiment was done to assess the effect of various post -harvest treatments of ethrel on ripening behaviour and post -harvest quality of mango cv. Amrapali (Mangiferaindica L.) during storage at Punjab Agricultural University, Regional Research Station, Gurdaspur during the years 2013-14 and 2014-15. The experiment was planned under completely randomized design (CRD) with three replications. The treatment units was six fruits per replication. Total five treatments and control were applied. The objective of this work was to evaluate the effects of various concentrations of ethrel (500 ppm, 750 ppm, 1000 ppm,1250 ppm, 1500 ppm and control ) on shelf life of mango fruits when stored under ambient conditions. The treated fruits were assessed for physiological changes fruit colour, flavour/aroma, organoleptic taste, marketability, ripening, specific gravity, moisture loss, decay, physiological loss in weight (PLW), total soluble solids (TSS), acidity and sugars. The observations were recorded at 5, 8 and 11 days after storage. At 11th day of storage these mangoes exhibited deep yellow fruit colour with excellent flavour, organoleptic taste and highly acceptable marketability at 1000 ppm ethrel treatment as compared to other ethrel doses. Fruit ripening (100%), specific gravity (0.84), TSS(23°Brix) and sugars(20.65%) were highest in the fruits treated with 1000ppm ethrel as compared to rest of treatments at 11th day of storage. Lowest moisture loss (8.5%), decay (1%), PLW(12.50%) and acidity(0.12%) were observed in the fruits treated with 1000ppm of ethrel as compared to rest of treatments at 11th day of storage. The beneficial effect of the present study is to overcome the problem of uneven and late ripening of Amrapali mango by postharvest treatment of ethrel at 1000 ppm at their mature green stage to develop typical fruit flavour with excellent fruit quality.

scholarly journals Germination and Dormancy in Seeds of Sorghum halepense and Sorghum arundinaceum

2015 ◽  
Vol 33 (2) ◽  
pp. 223-230 ◽  
Author(s):  
F.H. Krenchinski ◽  
A.J.P. Albrecht ◽  
L.P. Albrecht ◽  
H.L. Villetti ◽  
G. Orso ◽  
...  
Keyword(s):  
Germination Percentage ◽  
The Other ◽  
Sorghum Halepense ◽  
Design Experiment ◽  
Dormancy Breaking ◽  
Randomized Design ◽  
Breaking Dormancy ◽  
Completely Randomized Design ◽  
Presence And Absence ◽  
Double Factorial

Light, temperature and dormancy are factors that influence the germination of seeds and are strictly linked to the emergence of weeds. The objective of this work was to assess the germination of Sorghum arundinaceum and Sorghum halepense subjected to different conditions of temperature and luminosity, as well as assessing seed dormancy breaking mechanisms. For this, two experiments were conducted, both arranged in a completely randomized design. Experiment 1 was installed in a 2 x 5 double factorial design. The first factor was the absence or presence of light for 12 hours, and the other was composed of five constant temperatures: 15, 20, 30, 40 and 45 oC. In experiment 2, the efficiency of nine treatments used for breaking dormancy of seeds was assessed. The variables analyzed for both experiments were germination percentage and germination speed index (GSI). For the statistical analysis were performed an analysis of variance (ANOVA) and all the necessary consequences, as well as regression, when relevant. In experiment 1 for both species greater germination occurred in the presence of light. For S. arundinaceum the temperatures at which there was the highest percentage of germination were 33.13 and 31.24 oC for presence and absence of light respectively. As for S. halepense these temperatures were 31.98 and 29.75 oC for presence and absence of light respectively. As for the treatments for breaking dormancy, the mechanical scarification of seeds with sandpaper presented the highest germination and GSI. It is concluded that the Sorghum species studied are neutral photoblastic seeds and present mechanical type dormancy.

scholarly journals The effect of temperature and H2SO4 concentration and soaking time on breaking dormancy of sengon seed (Falcataria moluccana (Miq.) Barneby & J.W. Grimes)

Jurnal Galam ◽  
2021 ◽  
Vol 2 (1) ◽  
pp. 41-53
Author(s):  
Olivia Anafarida ◽  
◽  
Ika Oksi Susilawati ◽  
Rusmana Rusmana ◽  
◽  
...  
Keyword(s):  
Temperature Treatment ◽  
Effect Of Temperature ◽  
Paraserianthes Falcataria ◽  
Soaking Time ◽  
H2so4 Concentration ◽  
Randomized Design ◽  
Breaking Dormancy ◽  
Two Factors ◽  
Temperature Water ◽  
Key Words Temperature

Sengon (Falcataria moluccana (Miq.) Barneby & J.W. Grimes) is a Leguminoceae plant that is useful as material for making panel wood, furniture wood and trees that can rehabilitate critical land. Sengon seeds experience a period of dormancy and need to be managed. The purpose of this study is to determine the effect of temperature 600C and 50% H2SO4 concentration and soaking time on sengon seed germination. A complete randomized design (CRD) with two factors were used as research design. The first factor was the air temperature treatment of kontrol (A1), 60o C (A2), 50% H2SO4 (A3) and which consisted of 3 levels of treatment. The second factor was soaking time (T); T1: 35 minutes, T2: 8 hours. The results showed that the best combination of treatment and immersion time for all germination parameters of sengon seed is soaking seed at 60o C water for 8 hours Key words: Temperature water, H2SO4, Paraserianthes falcataria, germination

scholarly journals The effect of Rootone-F and coconut water on Piper sp. cutting growth

2021 ◽  
Author(s):  
NLW Meilawati ◽  
S Purwiyanti
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Shoot Length ◽  
Coconut Water ◽  
Randomized Design ◽  
Two Factors ◽  
And Control ◽  
Height Data ◽  
Control Water

Betel is propagated by stem cutting. The success of cutting is determinate by manynew roots and leaves. Synthetic or natural plant growth regulators can do induction root. Thisresearch aims to observe plant growth regulators to optimum growth of green and red betel. Acompletely randomized design with two factors was design treatment. The first factor was beteltype (green betel and red betel), and the second factor was plant growth regulator, namelyRootone-F (5%, 10%, 15%, 20%, and 25%), coconut water (15%. 25%, 50 %, 75%, 100%),and control (water). Repeated the treatment was three times. The observed characters were lifepercentage, root percentage, root length, and plant height. Data obtained were analyzed withSAS 9.1 software. The results showed that green and red betel could be propagated moreeffectively with water than the provision of growth regulators Rootone F and coconut water.Increasing the concentration of Rootone F and coconut water significantly reduces root lengthand shoot length.

scholarly journals USE OF BOTANICAL INSECTICIDES AS AN ALTERNATIVE FOR THE MANAGEMENT OF THE MEXICAN BEAN WEEVIL

2016 ◽  
Vol 29 (2) ◽  
pp. 348-357 ◽  
Author(s):  
KAREN FERREIRA DA SILVA ◽  
EDSON LUIZ LOPES BALDIN ◽  
LUIZ EDUARDO DA ROCHA PANNUTI
Keyword(s):  
Choice Test ◽  
Botanical Insecticides ◽  
Mentha Pulegium ◽  
Test Arena ◽  
Application Form ◽  
Botanical Species ◽  
Randomized Design ◽  
Two Factors ◽  
Piper Aduncum ◽  
And Control

ABSTRACT: This study aimed to evaluate the insecticidal activity of eight botanical species in the behavior and biological development of Zabrotes subfasciatus (Coleoptera: Chrysomelidae: Bruchinae) under laboratory conditions. The botanical species were applied on bean grains (Phaseolus vulgaris Linnaeus) directly as powder or indirectly within TNT bags. Three laboratory assays were performed. First, a repellent activity test was performed by exposing twenty couples of Z. subfasciatus adults in a choice-test arena. Second, a mortality test was performed for seven days after infestation. Finally, the oviposition and emergency rates of adults (%) and the development from egg to adult (in days) were evaluated in seven couples (males and females) for seven days inside of a vial containing 0.3g of the powder from each botanical species and 10 g of bean grains (3% w.w-1). The study was conducted in a completely randomized design, and the treatments were arranged as a factorial design (2 x 9) with two factors (factor 1= powder and TNT bag application forms and factor 2= eight botanical species and control) with eight replications. The powder application form was more efficient in controlling Z. subfasciatus. Azadirachta indica (powder application), Ruta graveolens (powder application), and Piper aduncum (TNT bag) reduced the infestation of adults. The species A. inidica, Piper tuberculatum, Trichilia catigua, Pfaffia glomerata, R. graveolens, and Mentha pulegium inhibited the oviposition of the insects regardless of the formulation applied. R. graveolens (powder application) caused 100% of mortality. The powder application of R. graveolens and M. pulegium reduced egg viability and insect emergence; therefore, they are very promising alternatives to control Z. subfasciatus in stored grains.

scholarly journals PENGARUH LAMA PEMANASAN BASAH DAN PERENDAMAN DALAM GIBERELIN TERHADAP PEMATAHAN DORMANSI BENIH KELAPA SAWIT (Elaeis guineensis jacq.)

Agrin ◽  
2021 ◽  
Vol 24 (1) ◽  
pp. 12
Author(s):  
Agustiansyah Agustiansyah ◽  
Ardian Ardian ◽  
Kukuh Setiawan ◽  
Erni Permata Dewi
Keyword(s):  
Oil Palm ◽  
Elaeis Guineensis ◽  
Maximum Growth ◽  
Growth Potential ◽  
Randomized Design ◽  
Breaking Dormancy ◽  
Two Factors ◽  
Heating Treatment ◽  
Completely Randomized Design ◽  
Four Levels

The aims of   this research to determined the effect wet heating and  immersion in gibberellins on breaking dormancy of  oil palm seed. The treatment was arranged in  factorially with two factors in the Completely Randomized Design. The first factors was wet heating which consists of five levels, (1) 20 days of heating; (2) 25 days of heating (3) 30days of heating (4) 35 days of heating (5) 40 days of heating.  The second factor was the concentrations of gibberellin in four levels,  (1) 0 ppm; (2) 100 ppm; (3) 200 ppm and (4) 300 ppm.  Based on the results  could be concluded that (1) wet heating could increased the percentage of germination, maximum growth potential, speed of germination, and time of emergence of sprouts, (2) 30 days wet heating treatment + immersion in 200 ppm giberelin was the best treatment in percentage of germination (64 % ± 1.3), maximum growth potential(70.7%±1.4), and speed of germination  (29% ± 1.0 per etmal).

PENGARUH PENDEKATAN APTITUDE TREATMENT INTERACTION (ATI) TERHADAP PEMAHAMAN KONSEP MATEMATIKA SISWA KELAS VIII SMP NEGERI 25 PEKANBARU

2015 ◽  
Vol 4 (1) ◽  
pp. 79
Author(s):  
Herlina '
Keyword(s):  
Control Group ◽  
Treatment Interaction ◽  
Aptitude Treatment Interaction ◽  
Research Experiment ◽  
And Control

This research intent to see how big influence of approaching aptitude treatment interaction (ATI) to mathematics concept grasp student brazes VIII SMP Country 25 Pekanbaru. This research constitute my research experiment attention. Subjec in observational it is student braze VIII4 as agglomerate as experiment by totals student 40 person and VIII3'S classes as agglomerate as controls by totals students 40. Base analisis data to pretes's score to know student startup ability on agglomerate experiment and control group. On student experiment group that will study by ATI'S approaching has average early learned result mathematics (pretes) as big as 17,15. Meanwhile on group controls student who will study by ordinary learning (conventional) have average early learned result mathematics (pretes) as big as 13,85. Analisis is data to postes's score on agglomerate learned student experiment with ATI'S approaching has average final learned result mathematics (postes) as big as 74,63. Meanwhile on group controls learned student with ordinary learning (conventional) have average final learned result mathematics (postes) as big as 62,93. Of quiz result distinctive both of average usufruct to study mathematics finals (postes) that points out that there is difference which signifikan among both of experiment class with control class.Keywords: aptitude treatment interaction (ATI), mathematics concept

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