scholarly journals RESPON PERTUMBUHAN SAGU (Metroxylon sagu Rottb) DENGAN PERENDAMAN ZAT PENGATUR TUMBUH IBA

2020 ◽  
Vol 7 (2) ◽  
pp. 61-64
Author(s):  
Kamsia Dorliana Sitanggang

Sago is a plant produces high carbohydrate source. The problem of sagoo propagation by generative are limited number of seeds and low germination. Vegetative propagation of sago can be done through sago tillers, however, the very slow root growth will affect the ability of the sago to survive. One way to accelerate root growth is by administering IBA growth regulators. This study aims to determine the response to the growth of sago saplings by immersing IBA (0, 25, 50, 75) ppm. The results showed that the highest percentage of living plants was found in the 25 ppm IBA immersion treatment with the percentage of live tillers 88.89%. For the parameters of the number and length of roots and the highest plant height was also found in the 25 ppm IBA immersion treatment with an average number of roots of 6.7, 12.43 cm of root length and an average plant height of 49 cm.

The effect of the chemical mutagens EMS (ethyl methanesulfonate), NMU (nitrosomethylurea), and the new mutagen DG-2 on a number of traits of Nigella damascena L. of the variety “Charivnytsya” in the M1 generation was studied. It was found that treating love-in-a-mist with these chemical mutagens changed such characteristics as plant survival, plant height, number of capsules per plant, number of side shoots and number of seeds from one plant. The dependence of the change in the studied traits on the type of chemical mutagen, its concentration and exposure duration was revealed. Nitrosomethylurea had the greatest influence on plant survival. After treatment with this mutagen at a maximum concentration of 0.05% and with a maximum exposure of 16 hours, the number of surviving plants was 4.3%. The effect of DG-2 mutagen at the concentration of 0.5% and 16 hours’ exposure on the survival of M1 plants was the least different from the control group. In this treatment 60.6% of plants survived, with a control value of 61.7%. The tested mutagens caused the appearance in plants of chlorophyll morphoses with a frequency of up to 0.93%, they were characterized by a change in the color of the leaves and capsule leaflets. Nitrosomethylurea had the greatest influence on the plant height and the number of seeds per plant at the concentrations of 0.01 and 0.05% with 6 and 16 hours’ exposure, respectively. After treatment with NMU at the concentration of 0.05% with exposure of 16 hours all plants were found to be unviable. After treatment with NMU at the concentration of 0.01% with 6 hours’ exposure, the average number of seeds per plant was minimal - 17.5 pieces, and plant height - 25.9 cm. The smallest but statistically significant effect on the studied parameters was noted after treatment with mutagen DG-2. In the case of the mutagen concentration of 0.05% and 16 hours’ exposure the average plant height was 40.7 cm, and the average number of seeds - 112.0 pieces, with control values of 47.0 cm and 237.1 pieces, respectively. The revealed changes in the M1 generation imply mutations of different directions in the next generation of love-in-a-mist.


2015 ◽  
Vol 40 (3) ◽  
pp. 465-478
Author(s):  
MA Hafiz ◽  
A Biswas ◽  
M Zakaria ◽  
J Hassan ◽  
NA Ivy

This experiment was conducted during September, 2011 to March, 2012 in the experimental field of Department of Horticulture, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur to find out the effect of planting date on the yield of broccoli genotypes. There were five genotypes viz. Early green, Forest green, Green calabrese, Premium crop and Green king and four planting dates viz. 2 October, 27 October, 21 November and 16 December. The treatment effects were statistically analyzed and found significant in most of the characters studied. Genotype Green calabrese was the highest in average plant height (53.70 cm). Green king produced the maximum spread diameter (69.23 cm), stem diameter (30.35 mm) and early initiation of floral head. Genotype Early green performed the best regarding head weight (343.87 g), yield per plant (477.4 g) and yield (19.10 t/ha). Broccoli planted on 21 November initiated early flower head, maximum head diameter (16.99 cm), head weight (314.49 g), yield per plant (453.64 g) and total yield (18.15 t/ha). The genotype Early green planted on 21 November showed the best performance in yield per plant (580.17 g) and yield hectare (23.21 t/ha).Bangladesh J. Agril. Res. 40(3): 465-478, September 2015


Author(s):  
Canan Nilay Duran ◽  
Gizem Demirkaplan ◽  
Sevinç Şener

Passionflower is a member of Passifloraceae family, it can be used as medicinal and ornamental plants in addition to its consumption as fruit in the world. Guava (Psidium guajava L.) fruits, which has a rich nutrient content, are consumed both fresh and processed. Passionfruit and guava plants, which can only be cultivated in temperate southern coasts in our country, have gained commercial importance because of the fruits' export potential, high medical importance and nutrient. This study was carried out to determine the effects of some bioactivator applications on the criteria of sapling growth and development of passionflower and guava plants. The experiment was conducted between 2018-2019 under greenhouse conditions. Saplings obtained from seed germination in Akdeniz University Faculty of Agriculture Research and Experiment Area were used as plant material. 3 different commercial preparations called Messenger, Crop-set and ISR-2000 were used as bioactivators. Plant height (cm), stem diameter (mm) and number of leaves (number / plant) were measured weekly, in order to determine the effect of the applications on the growth and development of saplings. At the end of the study, it was determined that the highest average plant height (10.17 cm), stem diameter (13.53 mm) were obtained in ISR-2000 application. The highest average plant height (11.93 cm), stem diameter (16.44 mm) and number of leaves (9.07 units / plant) were obtained from Messenger application in guava plant. When the results obtained are evaluated, it is recommended that ISR-2000 bioactivator can be applied in passionflower sapling cultivation and Messenger bioactivator can be applied for guava sapling cultivation.


2019 ◽  
Vol 5 (1) ◽  
pp. 17
Author(s):  
Zainudin Zainudin

This study aims to determine the dose of laying hens manure and fertilizer NPK 16:16:16 Mutiara right and the interaction between the dosing laying hen manure and NPK 16:16:16 pearls in improving plant growth Lai Mahakam immature. The study was conducted over four months, from May to September 2015 starting from land clearance, maintenance of plants, to capture data. This research was conducted at Badak Mekar village, Muara Badak, Regency. The design of the study is a randomized block design factorial 3 x 3 with three replications. The first factor is the dose of chicken manure (K) consisting of 3 levels: K0 (control), K1 (10 kg / plant) and K2 (20 kg / plant). The second factor is the dose of fertilizer NPK 16:16:16 Mutiara (M) comprises 3 levels: M0 (Control), M1 (200 g / plant) and M2 (400 g / plant). The treatment dose of chicken manure had no significant effect on all parameters of observation. Treatment fertilizer NPK 16:16:16 Mutiara very significant effect on all parameters of observation. The best treatment for an average plant height increment of age 90 days after treatment was achieved by treatment M1 (200 g / plant) is 15.54 cm while the lowest treatment was achieved by treatment M0 (control) is 7.03 cm. Interaction between chicken manure and NPK 16:16:16 Mutiara not significantly affected all parameters of observation.


2021 ◽  
Vol 8 (1) ◽  
pp. 24-27
Author(s):  
Kamsia Dorliana Sitanggang ◽  
Siti Hartati Yusida Saragih ◽  
MHD Arif Fadillah

 Brassica juncea is one of vegetable consumed by many people. One of chemical have been successful to induce mutation is colchicine. The aim of this research was to determine effect of colchicine on Brassica growth. The result show that soaking brassica seeds using colchicine make a decrease in the average plant height, leaf widht and number of leaves compare to control cause abnormal cell division.Keyword: Brassica juncea, Colchicine, Growth response


1999 ◽  
Vol 9 (2) ◽  
pp. 213-216 ◽  
Author(s):  
Thomas S.C. Li ◽  
Douglas A. Wardle

The influence of seed treatments and planting depth on the percentage of seed emergence of Hippophae rhamnoides L. `Indian-Summer', H. tibetana Schlecht., H. neurocarpa Liu & He, H. salicifolia D. Don, and H. rhamnoides subsp. rhamnoides, sinensis, turkestanica, and mongolica were studied. Surface seeding had higher percentages of seed emergence and more rapid completion of emergence compared to a 1- or 2-cm (0.4- or 0.8-inch) seeding depth. Seeds soaked in water or potassium nitrate solution at room temperature emerged in higher percentages. Average plant height of the eight species and subspecies varied significantly at the end of first growing season.


Jurnal Agro ◽  
10.15575/9098 ◽  
2020 ◽  
Vol 7 (2) ◽  
pp. 235-245
Author(s):  
Marliana S. Palad ◽  
Aminah Aminah

Usaha yang dapat dilakukan untuk megatasi penurunan produksi pohon kakao tua dan rusak adalah penerapan inarching grafting atau penyambungan tanaman kakao muda unggul berumur minimal 6 bulan yang ditanam di sekitar pohon tua. Tujuan penelitian ini adalah mengkaji pengaruh aplikasi Trichoderma asperellum dan Azotobacter chroococcum terhadap pertumbuhan vegetatif semaian kakao yang akan disambungkan ke pohon kakao tua menggunakan metode inarching grafting. Penelitian ini menggunakan Rancangan Petak Terbagi dengan tiga ulangan. Petak Utama yaitu aplikasi T.asperellum sebanyak 4 g L-1 setiap tanaman, dengan empat taraf: tanpa T.asperellum (T0), satu kali (T1), dua kali (T2), dan tiga kali (T3) aplikasi. Anak Petak adalah inokulasi A.chroococcum sebanyak 40 ml x 108 cfu setiap tanaman, dengan 3 taraf: tanpa A.chroococcum (A0), satu kali (A1) dan dua kali (A2) aplikasi. Hasil analisis menunjukkan tidak terdapat interaksi antara aplikasi T.asperellum dengan A.chroococcum, tetapi terdapat pengaruh tunggal dari kedua mikroba potensial yang diaplikasikan. Pada umur semaian 90 hst, aplikasi dua kali A.chroococcum menghasilkan rata-rata tinggi tanaman 155,25 cm, total daun 41 helai dan diameter batang 13,10 mm. Pemberian tiga kali T.asperellum menghasilkan rata-rata tinggi tanaman 150,89 cm,  total daun 41,22 helai dan diameter batang 12,86 mm. Semaian yang diberi mikroba potensial digunakan untuk rehabilitasi pohon kakao tua. An efforts that can be done to overcome the decline in production of old and damaged cocoa trees are the application of inarching grafting or grafting of superior young cocoa plants with a minimum age of 6 months planted around old trees. The purpose of this study was to examine the effect of the application of Trichoderma asperellum and Azotobacter chroococcumon the vegetative growth of cocoa seedlings which was grafted to old cocoa trees using the inarching grafting method. The research used a Split Plot Design with three replications. The main plot was application of T.asperellum of 4 g L-1 for each seedling and cocoa tree, consisted of four levels. i.e: without T.asperellum (T0), one time application (T1), two times application (T2), and three times application (T3). The subplot factor was A.chroococcum as much as 40 ml x 108 cfu on each seedling and cocoa tree, consisted of three levels, i.e.: without A. chroococcum (A0), one time application (A1) and two times application (A2).  The analysis of variance results showed that no interaction between applications of T.asperellum  with  A.chroococcum, but it had a singular effect for both potential microbial applied. At 90 days after planting, the application of A.chroococcum twice resulted in an average plant height of 155.25 cm, a total of 41 leaves and a stem diameter of 13.10 mm. Application of T.asperellum three times resulted in an average plant height of 150.89 cm, the number of leaves 41.22 sheets and a stem diameter of 12.86 mm. The seedlings that inoculated with potential microbes can be used for rehabilitation of old cacao trees.


2019 ◽  
Vol 6 (1) ◽  
pp. 50-61
Author(s):  
Supeki Supeki

In soybean cultivation the use of fertilizers is needed in both single and compound forms. Given that fertilizer prices are quite expensive; their use must be efficient. Problems faced where farmers are still often not cultivating soybean plants. Though soybean plants require high N, P, and K nutrients. The research was carried out in the experimental gardens of the Agricultural Training Center for the Food and Horticulture Crops of Papua Province in May to August 2016. The data analysis was done using tabulation and processed using the program Excel. Planting Anjasmoro variety of soybeans was done using NPK compaction 15-15-15 + TE compound DGW production from PT. Hextar Fertilizer Indonesia with a dose of 140.06 kg / ha can produce an average plant height of 86.85 cm and yields with a production of 3.83 tons / ha and a weight of 100 seeds is 17 gr / 100 seeds. This fact shows that the use of NPK compound fertilizer can be recommended as a supplementary fertilizer to increase soybean growth and proudness. However, NPK compound fertilizer can also be used as a basic fertilizer if the availability of a single fertilizer N, P, and K is not available or more expensive with regard to the adequacy or dosage of its use.


Author(s):  
Yuanita Windusari ◽  
Zulkifli Dahlan ◽  
Hidayatullah Hidayatullah

One example of marginal land is land mined and sandy soil. This land tends to be difficult to overgrow vegetation. Environment 19 Mile is part of the ModADA or Ajkwa watershed that has been modified as a PTFI tailing deposition area. The effect of high natural erosion and transport of mineral soils during the tailings drainage process causes soil structure in ModADA, especially in the double dike area to form faster, and allow natural vegetation. Characteristics of succession in the area were observed by vegetation profiles. The combination of making transects and sampling plots was used as a method for observing characteristic vegetation in the double dike area. The results showed that based on differences in vegetation height and canopy area there were 3 layers of vegetation, namely A, B, and C in the Double levees with flooded or tend to dry area. In the flooded area, Paraserianthes afalcataria and Timonius timon were dominated by an average plant height of 17.33 m; and layer B is dominated by Pandanus lauterbachii with an average plant height of 6.83m. In areas that tend to be dry, layer A species is dominated by Timonius Timon, Ficus armiti Miq, Glochidion macrocarpa, and Sterculia sp with an average plant height of 14.75 m; while layer B is dominated by Casuarina equisetifolia, Ficus armiti King, Ficus armiti Miq, Glochidion macrocarpa, Antiaris sp, Macaranga aleuroitoides, and Campnosperma brevi petiolata with an average plant height of 8.39 m. Layer C is in both types of soil occupied by species Phragmites karka. The vegetation profile shows that the area is an area with double dikes in the early stages of succession. This proves that this region is able to develop into natural revegetation of ModADA and accelerated through reclamation


HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1109a-1109
Author(s):  
S.A. Carver ◽  
H.K. Tayama ◽  
T.L. Prince ◽  
L.S. Campbell

Results from a preliminary study (growth parameters and foliar analyses) comparing a new specialty Osmocote formulation (12N-5.5P-12.4K) designed specifically for poinsettias with a standard Osmocote formulation (19N-2.6P-9.9K) revealed that the new formulation provided inadequate levels of nutrients at 1.0× and 1.5× the recommended rate. Average plant height (cm) for plants produced with 1.0× 12N-5.5P-12.4K, 1.5× 12N-5.5P-12.4K, 1.0× 19N-2.6P-9.9K was 33, 34, 37. Average plant diameter (cm) and foliar N content (%) was 42, 46, 53, and 2.8, 3.5, 4.1, respectively. Follow up studies (growth parameters and foliar analyses) comparing replacement shipments of three specialty Osmocote formulations (12N-5.5P-12.4K for poinsettias, 12N-4.4P-14.1K for potted chrysanthemums, and 13N-5.5P-9.1K for zonal geraniums) with Osmocote 19N-2.6P-9.9K and Peter's 20N-4.4P-16.6K injected at 200 mg N per liter of water at every irrigation showed all specialty formulations to be adequate sources of plant nutrients-comparable to the standard Osmocote. Average chrysanthemum height (cm) for plants produced with 1.0× 12N-5.5P-12.4K, 1.5× 12N-5.5P-12.4K, 1.0× 19N-2.6P-9.9K, Peter's 20N-4.4P-16.6K was 30, 30, 30, 29. Average chrysanthemum diameter (cm) and foliar N content (%) was 51, 50, 49, 50, and 4.5, 4.8, 4.4, 5.2, respectively.


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