scholarly journals The Effect Of Colchicine on Phenotypes And Stomata Pakcoy (Brassica Rapa L) Hydroponically With The NFT (Nutrient Film Technique) System

Jurnal Biota ◽  
2020 ◽  
Vol 6 (1) ◽  
pp. 37-41
Author(s):  
Nurdiah Hasana

Colchicine (C22H25O6N) is a toxic alkaloid compound that causing a polyploidy in the plants, so it produces a robust individuals. The aims of this research are to know the effect of kolchhisin against phenotypes and stomata pakcoy (Brassica rapa L) hydroponically with the NFT (Nutrient Film Technique) system. This research used experimental method with a complete random design (CRD), five treatments and five replications.  The data were analyzed by using ANAVA with 5% of credibility. The sample of this research were used pakcoy red arrow F1 nauli with colchicine P0 (Control), P1 (250 mg / L), P2 (500 mg / L), P3 (750 mg / L), P4 (1000 mg / L). The result of this study showed that the influence of colchisin against phenotype and the stomata’s size of pakcoy plant (Brassica rapa L). The high concentrations of colchicine can caused the size of the phenotype (leaves’ number, leaf area, wet weight, dry weight) pakcoy smaller than the control. While the size of the stomata increased, the largest of stomata size was found in the P3 treatment (750 mg / L).

2018 ◽  
Vol 20 (1) ◽  
pp. 1
Author(s):  
Daru Nurdianna ◽  
Retno Bandriyati Arni Putri ◽  
Dwi Harjoko

This study aims to determine the differences in the growth response of green curly lettuce to the differentiation treatment of LED lighting with different spectrum in indoor hydroponics. The research was conducted from October to November 2017. The experimental design used was experimental with 1 lighting factor with 5 levels, there are sunlight (P0), LED 20% blue: 80% red (P1), LED 80% blue: 20% red (P2), 50% blue LED: 50 % red (P3), and 100% white daylight (P4). Observational variables included plant height, leaf number, leaf area, leaf color, total wet weight, leaf wet weight, wet root weight and dry weight of the plant. The result of this experiment showed that LED irradiation have affect the treatment are plant height, leaf number, leaf area, chlorophyll content, fresh weight of harvest, root length, and dry weight of brackets. While those that have no significant effect are the wet weight of the roots. The results showed that between LED irradiation treatment L1, L2, L3, and L4 showed that treatment L2 with 80% blue spectrum composition: 20% red showed better growth based on: high plant, chlorophyll content, and root length. Treatment with L4 with white LED showed better growth based on the number of leaves, leaf area, fresh weight of harvest, root wet weight, and dry weight of total biomass. The results below the sunlight better than the LED irradiation treatment, because the intensity of LED far low and lack of controlled environmental conditions technology and management for growing lettuce. In all of LED treatment still looked etiolation because light intensity was not optimal yet.


2019 ◽  
Vol 3 (1) ◽  
pp. 46-51
Author(s):  
Tyas Nyonita Punjungsari ◽  
Agung Setya Wibowo ◽  
Intan Fuji Arriani ◽  
Palupi Puspitorini

Corn farm processing in Blitar Regency is very dependent on fertilization using chemicals. The use of chemicals themselves has a negative impact on the environment and health if used continuously. Therefore we need a solution to increase the absorption of nutrients from the soil by plants (nutrient use efficiency), namely the use of beneficial microorganisms, namely PBRM (Plant Beneficial Rhizospheric Microorganism). The purpose of this study was to determine the effect of a consortium of soil from peanut plants in increasing the growth of corn plants. This research was conducted in May 2019 until September 2019. This study used RAK and was carried out in several stages, the first being planting corn seeds with a combination of NPK and PBRM Consortium, with each of 4 dose levels, K0, K1, K2, K3 Observation indicators consisted of plant height, leaf area, wet weight of cob, dry weight of cob. DMRT test results on the variable Plant Height that the treatment of K2 (1.5 kg Consortium per plant) showed the best results with an average of 7 DAP (9.40) 14 dd (40.96) 28 DAP (102.36) 35 DAP (141, 31) and 42 DAP (172.21) while the age of 21 DAP in the K3 treatment (3 kg consortium) with the average (74.80) which showed the best results on corn plant height. Based on analysis of variance of leaf area observations, it was shown that the administration of PBRM consortium in NUE had a significant effect on the age of 21 DAP, 28 DAP, 35 DAP, and 42 DAP but did not significantly affect the age of 14 HST. In the variable wet weights of K2 treatment cob showed the highest average of 527.33 grams while in the variable dry weight of K2 treatment cob showed the highest average of 493.63 gr.


Author(s):  
Imron Rosyadi ◽  
Karmanah Karmanah ◽  
Sugiarto Sargo

Abstrak Pupuk organik bentuk cair berbahan urin dari ternak adalah salah satu alternatif pupuk ramah lingkungan yang dapat meningkatkan produksi dan pertumbuhan pakcoy. Berdasarkan hal tersebut, peneliti terdorong melaksanakan kajian dengan tujuan mengetahui dampak pemberian pupuk organik cair berbahan urin ternak terhadap perkembangan tumbuhan pakcoy (Brassica rapa L.). Percobaan lima perlakuan memakai Rancangan Acak Lengkap (RAL) yang merupakan pemberian tipe pupuk organik cair hasil ternak urin kambing, urin sapi dan urin kelinci, pupuk kimia AB Mix sebagai pembanding dan tanpa pemupukan (kontrol). Pengamatan dilakukan terhadap tinggi tanaman, kuantitas daun, berat kering dan berat basah panen. Data  dianalisis menggunakan software SPSS serta diuji  Duncan Multiple Range Test (DMRT). Hasil kajian yaitu pada semua pupuk organik cair terjadi peningkatan kandungan unsur P, penurunan unsur K dan pH setelah difermentasi pH berkisar 6,85–8,45 dan sesuai dengan peraturan Menteri Pertanian No. 70/Permentan/SR.140/10/2011 tentang pupuk organik, pupuk hayati, dan pembenah tanah. Pupuk organik cair berbahan urin ternak mampu meningkatkan jumlah daun dan tinggi tanaman pakcoy yang secara sig nifikan berbeda dibandingkan pupuk kimia.  Aplikasi pupuk organik cair urin kambing menghasilkan berat kering dan berat basah panen pakcoy yang serupa dengan pupuk kimia.  AbstractLiquid organic fertilizer made from urine from livestock is an alternative to environmentally friendly fertilizers that can increase pakcoy production and growth. Based on this, researchers are interested in conducting research to determine the effect of liquid organic fertilizer made from livestock urine on the growth of pakcoy (Brassica rapa L.). The experiment was carried out with five treatments using a completely randomized design (CRD), namely the application of liquid organic fertilizer from goat urine, cow urine and rabbit urine, chemical fertilizer AB Mix as a comparison, and without fertilization (control). Observations were made on plant height, a number of leaves, dry weight and wet weight of harvest. Data were analyzed using SPSS software and further tested with Duncan Multiple Range Test (DMRT). The results of the study were that in all liquid organic fertilizers there was an increase in the content of P elements, a decrease in K elements, and pH after fermentation. 70/Permentan/SR.140/10/2011 concerning organic fertilizers, biological fertilizers, and soil enhancers. Liquid organic fertilizer made from livestock urine is able to increase the number of leaves and plant height of pakcoy which is significantly different from chemical fertilizers. The application of goat urine liquid organic fertilizer resulted in the same dry weight and wet weight of pakcoy harvest as chemical fertilizers.  


Author(s):  
Youssef Abdel Rahman Mahmoud - Iyad Assi Obaid - Nizar Aslim

An experiment was conducted in the research station Horticulture and landscape gardening Dept./college of Agriculture university of Diyala for the period from 2016/12/15 up to 2017/7/1. Study of the effect of colchicine and its effect to deteted the effect on the Vegetative growth, stomata Characteristics of the Strawberry plant when treating its apical part by the Colchicine with concentrations of zero, 0.05, and 0.1%. The number of treatment times was (one treatment and two treatments). The results of experiment showed that the plants that treated with 0.1% Colchicine were Increased leaf area to (138.7 cm2), the content of Chlorophyll in the leaf to (51.450 SPAD), the wet weight of the leafs (3.033 gm), the dry weight of the Leave (0.550 g), the length of Stomata (26.75 µ), the width of the stomata (11.42 µ). when Compared with the control value of treatment, it found that the control value of treatment has more number of stomata with average (26 stomata.mm2). while with the treatment of 0.05 % concentration, On the other hand, when treating the Shoot tip of the plant tow times, it found that the plants have better leaf area (119.188 cm2), amount of Chlorophyll (47.222 SPAD), dry weight (0.558 g), length of stomata (25.16 µ), and the width of the stomata (10,49 µ), compared to single treatment. The double overlap between the concentration and the number of treatment times resulted in a significant increase in the area of paper area, chlorophyll content in leaves, leaf content of wet material, length of hole in treatment with 0.1% concentration, While the concentration of 0.1% and the treatment only once in the character and content of the leaves of the dry material and the width of the gaps of the paper as it reached 0.690 g and 11.62 on the relay.       


2019 ◽  
Vol 4 (2) ◽  
Author(s):  
Wawan Setiawan ◽  
Octavianus Lumban Tobing ◽  
Arifah Rahayu

Lemon basil (Ocimum basilicum L.) is an indigenous plant which is commonly used as vegetable,medicinal herb, cosmetic ingredient, perfume ingredient, and food ingredient. This study was aimedat assessing the effects of the application of different compositions of KCl fertilizer and cattle urineon the growth and production of lemon basil accession. A factorial completely randomized designwith two factors was used. The first factor was the composition of KCl fertilizer and cattle urineconsisting of six levels, namely 100% R cattle urine 75% R cattle urine + 25% R KCl, 50% Rcattle urine + 50% R KCl, 25% R cattle urine + 75% R KCl, 100% R KCl, and 0% R cattle urine+ 0% R KCl. The second factor was lemon basil accession consisting of three levels, namely Bogor,Cianjur, and Sukabumi. Results showed that the composition of 25% R cattle urine + 75% R KCland 100% R cattle urine gave leaf area and total yield dry weight, respectively, which were higherthan those in other treatments. Bogor accession was found to have plant height, number of leaves,and length of branches which were significantly higher than those found in other accessions.Meanwhile, number of branches, leaf area, stem diameter, yield wet weight, and yield dry weightof Sukabumi accession were higher than those in Bogor and Cianjur accessions.Key words: Ocimum basilicum, leaf area, dry weight


HortScience ◽  
1996 ◽  
Vol 31 (6) ◽  
pp. 917-918
Author(s):  
U.K. Schuch ◽  
J.A. Bethke ◽  
R.A. Redak

Water stress and N fertilization can have a profound effect on populations of phytophagous insects. While species and cultivar selection can identify plants that are resistant to common insect pests, cultural practices may further decrease the susceptibility to insect attacks. Six poinsettia and six chrysanthemum cultivars were grown under well-watered or water-deficient conditions, and three fertilizer regimes with low, medium, or high concentrations of N. Vegetative plant growth and longevity and fecundity of various insect pests on these plants were determined. Host plant suitability to insects was estimated by the quantity of foliar soluble protein. Low irrigation reduced leaf area and leaf and stem dry weights 36% to 41% in poinsettias and 26% to 28% in chrysanthemum. Leaf area and leaf dry weight increased linearly in response to increasing fertilizer concentrations in poinsettia and chrysanthemum. Cultivar-specific differences were found for all variables of vegetative growth in poinsettiasand chrysanthemum. Cultivar also strongly affected insect preference, development, and fecundity. Low irrigation significantly reduced insect survivorship of the silverleaf whitefly on poinsettias. On chrysanthemum, leafminers, thrips, and melon aphids were unaffected by irrigation or fertilizer treatments. Chrysanthemum cultivar choice strongly affected the number of insects or development time.


2019 ◽  
Vol 3 (2) ◽  
pp. 85
Author(s):  
Yan Hariadi Lubis ◽  
Ellen Lumisar Panggabean ◽  
Azhari Azhari

<h1>In the Indonesian economy, the oil palm commodity plays a pretty bright role because it serves as a source of foreign exchange. The need to develop technology in producing superior seeds. In this study discuss about the Influence of Giving Fertilizer and Mikoriza Against the Growth of Palm Oil Plants (Elaeis guineensis jacq.) In Pre-Nursery Nursery. This study aims to determine the effect of manure and mycorrhizal fertilization as well as its interaction on the growth of coconut plants in pre-nursery nurseries. The study was designed by Factorial Randomized Block Design consisting of 2 treatment factors. The first factor of treatment of manure (K) consisting of 4 levels, namely: K0 = 0 kg / polybag, K1 = 0.15 kg / polybag, K2 = 0.30 kg / polybag, and K3 = 0.45 kg/polybag. The second factor of mycorrhizal treatment (M) consisting of 4 levels, namely: M1 = 12.5 g/polybag, M2 = 25.0 g/polybag, M3 = 37.5 g / polybag. The results showed that the treatment of cow manure up to 0.45 kg/polybag can increase the height of seedlings, stem diameter, total leaf area, wet weight of seedlings and dry weight of seedlings, but did not affect the number of oil palm seedlings.Mikoriza treatment up to 37, 5 g / polybags can increase seed height, stem diameter, total leaf area, wet weight of seedlings and dry weight of seedlings, but have no significant effect on the number of oil palm seedlings. The interaction between cow manure and mycorrhiza had no effect on all parameters observed.</h1>


2011 ◽  
Vol 175-176 ◽  
pp. 36-40 ◽  
Author(s):  
He Yu Zhang ◽  
Wei Chen ◽  
Tai Chu Wang ◽  
Jin Zhu Liu

Mulberry trees (Morus spp. Moraceae) are used for rearing the silkworm. Moraceae plants are characterized by the presence of latex, and mulberry trees exude latex when their stem, leaf or root were damaged. We found in the present study that mulberry latex contains very high concentrations of DNJ (0.63% wet weight, 4.5% dry weight), the DNJ content of latex varied with different part of tree and collecting time. The study also evaluated the antihyperglycemic effects of mulberry latex on streptozotocin induced diabetic mice. Diabetic mice were treated with mulberry latex or acarbose with food for 21 days. The results indicated that postprandial blood glucose and fasting-blood glucose level of mice were lowed, mulberry latex displayed a significant reduction ( P ≤ 0.05) in blood glucose. This finding suggested that mulberry latex have high value for herbal medicine as hypoglycemic function.


2010 ◽  
Vol 44-47 ◽  
pp. 951-955
Author(s):  
Wei Bin Wu ◽  
Tian Sheng Hong ◽  
Jin Xing Guo ◽  
Dong Dong Li ◽  
Zhi Lin Mai

The method to provide crop biomass status information for precision agriculture by researching the features of leaf area index(LAI) is presented in this paper. The relationship between LAI and spectrum can be identified by spectrum analysis, thereby achieving fast and accurate LAI measurement. The exact total leaf area and the nominal LAI values of citrus leaves can be calculated through a scanning calibration experiment. Analysis system for citrus LAI spectrum data is made up of a data acquisition platform with FieldSpec-FR and computers as its key components to collect spectrum data of leaves and an inversion platform with computers, ViewSpecPro, SPSS and other softwares as its core to calculate the LAI of citrus leaves. The fitting equation of LAI and spectrum information obtained is Y=1.5106X+0.7869 and the calculation error is ±0.0378%. The fitting equation of LAI and dry weight obtained is Y=0.0924X+3.1252 and the calculation error is ±0.3002%. The fitting equation of dry weight and wet weight obtained is Y=0.1807X-0.1133 and the maximum calculation error is 2.2713%.


2020 ◽  
Vol 4 (1) ◽  
pp. 17
Author(s):  
Tri A Lestari ◽  
Rion Apriyadi ◽  
Dewi Ratna Ulfa

<p class="Abstract">Culture crop technology with ameliorant and mulch can fulfill nutrients to improve growth of mustard on post tin mining land. This research aimed to know the effect of various ameliorant and mulch for growth of mustard on post tin mining land. The method used was experimental method with factorial completely randomize design with four replications. First factor was type of ameliorant, consist of compost, and cow manure. The second factor was type of mulch, consist of no mulch, reed mulch, and black silver plastic mulch. The results showed that type of ameliorant significantly affected number of leave, root volume, root wet weight and root dry weight. Type of mulch significantly affected plant height, number of leave, shoot wet weight and root dry weight. Interaction of ameliorant and mulch significantly affected plant height, number of leave, root volume, shoot wet weight, root wet weight and root wet weight. Compost with black silver plastic mulch tended to give better results for growth of mustard on post tin mining land.</p>


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