scholarly journals Pengaruh Dosis Pupuk NPK (16:16:16) dan Mikoriza terhadap Pertumbuhan Bibit Kakao (Theobroma cacao L.) pada Media Tumbuh Subsoil

Jurnal Agrium ◽  
2018 ◽  
Vol 12 (2) ◽  
Author(s):  
Nasrullah Nasrullah ◽  
Nurhayati Nurhayati ◽  
Ainun Marliah

AbstrakPenelitian ini bertujuan untuk mengetahui pengaruh dosis pupuk NPK (16:16:16) dan mikoriza terhadap pertumbuhan bibit kakao pada media tumbuh Subsoil. Penelitian ini dilaksanakan di Kebun Percobaan, Laboratorium Penelitian Tanah dan Tanaman serta Laboratorium Penyakit Tumbuhan Fakultas Pertanian Universitas Syiah Kuala, Darussalam Banda Aceh yang dilaksanakan pada bulan November 2013 hingga April 2014. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) pola faktorial. Faktor pertama adalah dosis pupuk NPK (16:16:16) (0, 5, 10 dan 15 g/tanaman). Faktor kedua adalah dosis mikoriza (0, 5, 10 dan 15 g/tanaman). Hasil penelitian menunjukkan bahwa perlakuan dosis pupuk NPK (16:16:16) berpengaruh sangat nyata terhadap tinggi bibit dan diameter pangkal batang umur 60 dan 90 HST, luas daun, panjang akar, berat basah akar, berat basah dan kering berangkasan atas serta persentase akar yang terinfeksi mikoriza. Pertumbuhan bibit kakao pada media tumbuh subsoil terbaik dijumpai pada dosis pupuk NPK (16:16:16) 5 g/tanaman. Perlakuan dosis mikoriza berpengaruh sangat nyata terhadap luas daun dan persentase akar yang terinfeksi mikoriza, berpengaruh nyata terhadap tinggi bibit umur 90 HST, diameter pangkal batang umur 90 HST, berat basah akar dan berat kering berangkasan atas. Perlakuan dosis mikoriza yang lebih efektif adalah 10 g/tanaman. Tidak terdapat interaksi antara perlakuan dosis pupuk NPK (16:16:16) dan mikoriza.  This research aims to know the influence of fertilizer dosage of NPK (16:16:16) and mycorrhiza towards the growth of cocoa seed on Subsoil growing media. This research was conducted at the Experimental Garden, Soil Research Laboratory and plant along with the Plant Disease Laboratory of the Agriculture Faculty of Syiah Kuala University, Darussalam Banda Aceh which was conducted in November 2013 until April 2014. This research used a Group Randomized Design (RAK) of factorial pattern. The first factor was dosage of NPK (16:16:16) fertilizer (0, 5, 10 and 15 g/plant). The second factor was mycorrhiza dosage (0, 5, 10 and 15 g/plant). The result research showed that the treatment of NPK fertilizer (16:16:16) dosage was took effect very real towards seed height and base of stem diameter age 60 and 90 HST, leaf wide, root length, root wet weight, wet weight and dry weight of above crop, along with the percentage of root which infected by mycorrhiza. The growth of cacao seeds at growing media of the best subsoil was encountered at the dosage of NPK (16:16:16) fertilizer 5 g/plant. The mycorrhiza dosage treatment take effect very real towards the leaf wide and the root percentage which infected by mycorrhiza, take effect real towards seed height 90 HST age, the diameter of stem base 90 HST age, wet weight of root and dry weight of above crop. The treatment of mycorrhiza dosage that better/effective are 10 g/plant. There is no interaction between the two treatments.

2020 ◽  
Vol 4 (1) ◽  
pp. 149-159
Author(s):  
Datul Fadillah ◽  
Trisda Kurniawan ◽  
Erida Nurahmi

Abstrak. Penelitian ini bertujuan untuk mengetahui pengaruh perbandingan media tanam dan beberapa konsentrasi mikroorganisme lokal terhadap pertumbuhan bibit kakao. Penelitian ini dilaksanakaan di Kebun Percobaan 2 dan Labaratorium Hortikultura, Jurusan Agroteknologi Fakultas Pertanian Universitas Syiah Kuala, Banda Aceh dari bulan Juli sampai Oktober 2018. Penelitian ini menggunakan Rancangan Acak Kelompok pola faktorial 4 x 4 dan 3 ulangan, sehingga terdapat 48 satuan percobaan dan dilanjutkan dengan uji Beda Nyata  Jujur taraf 5% pada hasil uji F yang signifikan. Faktor pertama adalah perbandingan media tanam dengan 4 taraf yaitu: kontrol-2 tanah : 1 pupuk kandang (M0), 2 tanah : pupuk kandang : 1 sekam bakar (M1), 1 tanah : 2 pupuk kandang : 1 sekam bakar (M2), 1 tanah : 1 pupuk kandang : 2 sekam bakar (M3). Faktor kedua adalah konsentrasi mol bonggol pisang dengan 4 taraf yaitu 0, 10%, 20% dan 30% L-1 air. Parameter yang diamati adalah tinggi bibit, diameter pangkal batang, jumlah daun, berat berangkasan basah dan berat berangkasan kering. Hasil penelitian menunjukkan bahwa, perlakuan perbandingan media tanam berpengaruh tidak nyata terhadap semua parameter. Pemberian beberapa konsentrasi mikroorganisme lokal berpengaruh nyata terhadap jumlah daun bibit kakao umur 8 MST dan berpengaruh sangat nyata pada jumlah daun bibit kakao umur 12 MST. Terdapat interaksi yang nyata antara perlakuan media tanam M0 dan konsentrasi mol 20% (M2).The Effect of Plant Medium and Local Microorganism Banana Tuber on the Growth of Cocoa Seedling (Theobroma cacao L)Abstract. The purposes of this research were to know the effect of comparison media planting and several concentrations of local microorganism on the growth of cocoa seedlings. This research was conducted at Experimental Garden 2 and Horticulture Laboratory, Department of Agrotechnology, Faculty of Agriculture Syiah Kuala University, Banda Aceh from July to October 2018. This study used a Randomize Block Design of 4 x 4 factorial pattern with 3 replication, so that were 48 experimental units and continued with a Honestly Significance Difference 5% level on significant F test result. The first factor is the comparison medium planting of 4 levels : control- 2 soil : 1 manure (M0), 2 soil : 1 manure : 1 hueks fuel (M1), 1 soil : 2 manure : 1 hueks fuel (M2) and 1 soil : 1 manure : 2 hueks fuel (M3). The second factor is the concentration of local microorganism of 4 levels: 0 (P0), 10% (P1), 20% (P2) and 30% (P3) L-1 water. Parameters observed were plant height, stem base diameter, number of leaves, wet weight and dry weight. The result showed that the treatment of comparison planting medium had unsignificantly effect on all parameters. Consentrations of local microorganinism has a significant effect on the number of leaves of cocoa seedlings aged 8 WAP and has a very significantly effect on the number of leaves cocoa seedlings aged 12 WAP. There is significantly effect between the treatment of comparison planting medium control-2 tanah : 1 pupuk kandang (M0), and local microorganism concentrations 20% (P2).


2020 ◽  
Vol 4 (2) ◽  
pp. 11-20
Author(s):  
Ricka Rizkiana ◽  
Tjut Chamzurni ◽  
Syamsuddin Syamsuddin

Abstrak. Penelitian ini bertujuan untuk mengetahui pengaruh lokasi sumber isolat rizobakteri terhadap daya hambat pertumbuhan koloni patogen penyebab busuk buah kakao secara in vitro. Penelitian ini dilaksanakan di Laboratorium Ilmu dan Teknologi Benih Jurusan Agroteknologi, Fakultas Pertanian, Universitas Syiah Kuala Darussalam Banda Aceh dari bulan September sampai November 2018, menggunakan Rancangan Acak Lengkap non faktorial. Faktor yang diamati yaitu jumlah isolat rizobakteri yang berpotensi dalam mengahambat pertumbuhan koloni patogen penyebab busuk buah kakao dari dua lokasi pengambilan yang berbeda yaitu dari Tripa dan Gleumpang Minyeuk dengan 3 kali ulangan pada tiap perlakuan yang dilanjutkan dengan Uji Beda Nyata Jujur pada taraf 5% pada hasil uji F yang signifikan. Hasil penelitian ini menunjukkan pengambilan rizobakteri dari dua lokasi yang berbeda berpengaruh sangat nyata terhadap daya hambat pertumbuhan koloni patogen penyebab busuk buah kakao, yang dijumpai pada perlakuan isolat rizobakteri GM 8/2 dengan daya hambat 58,23% dan GM 8/3 dengan daya hambat 51,59% dengan aktifitas penghambat sedang. Juga berpengaruh sangat nyata terhadap laju penghambat pertumbuhan koloni patogen penyebab busuk buah kakao yang dijumpai pada perlakuan isolat rizobakteri TRI 4/7 dengan rerata laju penghambatan 4,76 mm/hari. Isolat rizobakteri yang mampu dalam melarutkan fosfat dijumpai pada perlakuan TRI 3/11, TRI 4/6, TRI 6/14, TRI 7/4, TRI 8/2, TRI 8/4, TRI 8/8, TRI 8/9, GM 3/6, GM 5/6, GM 6/1, GM 6/5, GM 7,/9, GM 8/3, GM 8/8 dan GM 8/11. The Effect Of Source Rizobacteria On The Inhibitory Power Of Growth Colony (Phytophthora palmivora) Pathogens Causes Of In Vitro Rotten Cocoa Fruit (Theobroma cacao L.)  Abstract. This study aims to determine the effect of the location sources of rhizobacterial isolates on the inhibitory power of growth of pathogens causing cocoa fruit rot by in vitro method. This research was carried out at the Seed Science and Technology Laboratory of the Department of Agrotechnology, Faculty of Agriculture, Syiah Kuala Darussalam University Banda Aceh from September to November 2018, used a non factorial Completely Randomized Design. The factors observed were the number of rhizobacterial isolates which had the potential to inhibit the growth of pathogens causing cacao fruit rot from two different locations, namely Tripa and Gleumpang Minyeuk with 3 Repeat times for each treatment were followed by an Honest Real Difference Test at the level of 5% on a significant F test result. The results of this study indicate rhizobacterial uptake from two different locations had a very significant effect on the growth inhibitory power of cacao rotten pathogenic colonies, which was found in the treatment of GM 8/2 rhizobacterial isolates with inhibition of 58.23% and GM 8/3 with inhibitory power 51.59% with moderate inhibiting activities. It also has a very significant effect on the rate of growth of the inhibitor of cacao rotten fruit pathogens found in the treatment of TRI 4/7 rhizobacterial isolates with an average inhibition rate of 4.76 mm / day. Rhizobacterial isolates capable of dissolving phosphate were found in the treatment of TRI 3/11, TRI 4/6, TRI 6/14, TRI 7/4, TRI 8/2, TRI 8/4, TRI 8/8, TRI 8/9, GM 3/6, GM 5/6, GM 6/1, GM 6/5, GM 7, 9, GM 8/3, GM 8/8 and GM 8/11.


2019 ◽  
Vol 1 (1) ◽  
pp. 25-29
Author(s):  
Yulius Gae Lada

Boiler ash is a solid waste from biomass combustion from palm oil mills. The boiler ash can be used as fertilizer because it has a high content in the samples of N, P, K and Mg and is safe for the environment. This study aims to determine the effect of boiler ash fertilizer on the growth of cocoa seedlings and get the optimal fertilizer dose when applied. This research was conducted in Jayapura – Papua for 3 months (September – November). This study used a completely randomized design that was repeated as many as 6 replications. The treatments given include: A0 (control), A1 (300 g.polybag–1), A2 (350 g.polybag–1), A3 (400 g.polybag–1) and A4 (450 g.polybag–1). Parameters measured were plant height, leaf number, leaf width, leaf length and plant wet weight. Based on statistical tests, the results showed that the use of boiler ash fertilizer on the growth of cocoa seedlings which was seen from all parameters had no significant effect. However, A4 treatment using 450 g of boiler ash fertilizer per polybag gives significant results for all parameters measured.


2021 ◽  
Vol 6 (1) ◽  
pp. 48
Author(s):  
Ida Nursanti ◽  
Yuza Defitri ◽  
Kurniawan Setia Budhi

ABSTRACTCocoa (Theobroma cacao L) is one of the leading export commodities with considerable potential in Indonesia. Where cocoa plants occupy the third largest position in meeting the country's foreign exchange in the plantation sub-sector so that it is necessary to increase the growth of cocoa plants by increasing nutrients. One of the ways to increase cocoa plant nutrients is by providing fermented goat urine liquid organic fertilizer. This study aims to determine the effect of fermented goat urine on the generative growth of cocoa (Theobroma cacao L). The hypothesis of this study is that giving goat urine with various concentrations will have an effect on the growth of cacao seeds (Theobroma cacao L) in polybags. The research method used was an experimental method using a completely randomized design (CRD) pattern with 5 treatments and 3 replications, namely the concentration of control K0 / ordinary water, K1 100 ml / l, K2 200 ml / l, K3 250 ml / l, K4 300 ml / l. The observation parameters were plant height (cm), plant dry weight (cm), crown dry weight (cm), and plant crown ratio. Data were analyzed by one-way analysis of variance (ANOVA), followed by Duncan's test (DNMRT) to determine the differences between concentration factors. The results of the analysis carried out in the laboratory showed levels of N 1.35%, K 2.10%, P 0.13, and 0.16% organic C. Giving the concentration of various goat urine showed no significant effect on plant height, plant dry weight, canopy dry weight, and root canopy ratio. Key words: cocoa; goat urine. ABSTRAKTanaman kakao (Theobroma cacao L) merupakan salah satu komoditas eskpor unggulan yang cukup potensial di Indonesia. Dimana tanaman kakao menempati posisi terbesar ketiga dalam memenuhi devisa negara pada sub-sektor perkebunan sehingga diperlukan peningkatan pertumbuhan tanaman kakao dengan meningkatkan unsur hara. Salah satu dalam cara peningkatan unsur hara tanaman kakao yaitu dengan cara pemberian pupuk organik cair urin kambing yang difermantasi. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian urin kambing yang di fermentasi terhadap pertumbuhan generatif kakao ( Theobroma cacao L). Hipotesisdari penelitian ini adalah pemberian urine kambing dengan berbagai konsentrasi akan memberikan pengaruh terhadap pertumbuhan bibit kakao (Theobroma cacao L) di polybag. Metode penelitian yang digunakan adalah metode eksperimen dengan menggunakan pola Rancangan Acak Lengkap (RAL) dengan 5 perlakuan dan 3 ulangan yaitu konsentrasi K0 Kontrol/air biasa, K1 100 ml/l, K2 200 ml/l, K3 250 ml/l, K4 300 ml/l. Parameter pengamatan berupa Tinggi Tanaman(cm), Bobot Kering Tanaman(cm), Bobot Kering Tajuk(cm), Nisbah Tajuk Tanaman. Data dianalisis dengan analisis varian satu arah (ANOVA), dilanjutkan dengan uji Duncan’s ( DNMRT) untuk mengetahui perbedaan di antara faktor konsentrasi. Hasil analisis yang dilakukan di dalam laboratorium menunjukkan kadar N 1,35%, K 2,10%, P 0.13, dan C-organik 0,16%. Pemberian konsentrasi berbagai urine kambing menunjukkan hasil yang berpengaruh tidak nyata terhadap Tinggi Tanaman, Bobot Kering Tanaman, Bobot Kering Tajuk, dan Nisbah Tajuk Akar.Kata kunci : kakao; urin kambing. 


2021 ◽  
Vol 6 (2) ◽  
pp. 57
Author(s):  
Fico Ovender ◽  
Rudi Hartawan ◽  
Edy Marwan

Cacao (Theobroma cacao L.) is one of the important plantation commodities after oil palm and rubber. This plant has a high economic value and is a foreign exchange earner. The seeds produced are used as raw material for the foodstuff industry as well as for the pharmaceutical and cosmetic industries. Based on data from the Central Statistics Agency, the productivity of cocoa-farmers in Jambi is still very low, only reaching 585 kg ha-1. This study aims to obtain a dose of oil palm waste compost to support the growth of cocoa seedlings. The experiment was carried out in Pijon Village, Jaluko District, Muaro Jambi Regency from December 2020 to April 2021. This experiment was carried out using a completely randomized design environment. The treatment design used was compost dosage consisting of 4 levels, namely p0 = without giving compost, p1 = 5 tons ha-1 (7.5 grams per 3 kg of media), p2 = 10 tons ha-1 (15 grams per 3 kg of media) and p3 = 15 tons ha-1 (22.5 grams per 3 kg of media). The observed data were tabulated and analyzed with analysis of variance. If the calculated F value has a significant effect, then the DNMRT further test for 95% accuracy is carried out. The results showed that the application of compost 15 tons ha-1 showed an increase the plant height of 63.78%, the stem diameter of 73.68%, the shoot dry weight 30.83%, the total dry weight 95.12%, an the short root ratio 90.37%.


2018 ◽  
Vol 7 (1) ◽  
pp. 28
Author(s):  
Yetti Elidar

Research on the response of roots of palm sugar palm seeds (Arenga pinnata) in nurseries at doses and intervals of Nasa liquid organic fertilizer. Aims to determine the dosage, interval and combination of dosages and fertilization intervals with Nasa liquid organic fertilizer which can provide the best dry weight of the roots in the nursery. The research design used was a Completely Randomized Design (CRD) with 3x3 factorial experiments and each treatment was repeated 8 (eight) times, consisting of: the first factor was the treatment of POC Nasa dose in a concentration of 3 cc POC Nasa per liter of water (D) consists of 3 levels, namely: d1 = 300 ml POC Nasa, d2 = 400 ml POC Nasa, d3 = 500 ml POC Nasa, while the second factor is the treatment of POC Nasa Interval (I) consisting of 3 levels, namely: i1 = 2 once a week, i2 = once every 3 weeks, i3 = once every 4 weeks. The results of the POC Nasa dose study had a significant effect on leaf wet weight, leaf dry weight, root wet weight and root dry weight. The best dose at this level are: d2 (400 ml of Nasa liquid organic fertilizer), the interval of liquid organic fertilizer Nasa has a significant effect on leaf wet weight, leaf dry weight, root wet weight and root dry weight. The best dose at this level is: i1 (once every 2 weeks). The treatment combination has no significant effect on all parameters. 


2019 ◽  
Vol 10 (1) ◽  
pp. 51-57
Author(s):  
Basuki Wasis ◽  
Siti Halimatus Sa'idah

Limestone mining activities are damaging soil and enviroment. Revegetation becomes an obligation on every mining sites. Paraserianthes falcataria is one of many species that suitable to be planted in revegetation site. Adding compost and NPK fertilizer can improve soil’s condition. This research objective is to analyze the effect of compost and NPK fertilizer on Paraserianthes falcataria seedlings growth and the exact appropriate dosage for limestone mining’s soil condition improvement. The design used in this research is completely randomized design with two factors. The result shows that addtion of compost on tailing media doesn’t give major effect or statistically not significant on seedling growth of height, diameter, the amount of root nodules, and shoot-root ratio, but statistically significant on wet and dry weight of the seedlings. NPK fertilizer addition on tailing media is statistically significant on the seedling growth of diameter, wet weight, and shoot-root ratio, but not significant different on height, dry weight, and the amount of root nodules. Interaction between compost and NPK fertilizer on media gives effect only at 95% of confidence level. K1N5 sample (with 100 gram composts and 5 gram of NPK fertilizer) gives the best respond on seedling’s growth. Very high levels of Ca in the soil medium will be toxic to the Paraserianthes Falcataria plant.Keywords: Compost, limestone mining, NPK fertilizer, Paraserianthes falcataria


Author(s):  
Adi Prawoto ◽  
Nurul Qomariyah ◽  
Sri Rahayu ◽  
Bambang Kusmanadhi

Cocoa grafting and budding is usually carried out on 4-5 month old seedling, thus it needs 9-12 months to be ready tranplanted to the field. Effort to shorten time in the nursery can be done by early propagation. The aim of this research was to study effect of clones, tying and foliar application of grafsticks on the percentage of graftake. This study was carried out in Kaliwining Experimental Station, 45 m a.s.l. and D climate type (Schmidt & Ferguson). First experiment was RCBD design and replicated 3 times, and factorial treatment 4 x 3. The first factor were clones, i.e. TSH 858, ICS 13, ICS 60 and DR 2, the second factor was grafstick wiring, i.e. without, wiring 2 and 4 weeks before using. The 2nd experiment using RCBD design replicated 3 times and factorial treatment 3 x 3 x 2. The first factor was clones, i.e. KW 162, KW 163 and KW 165; the second ones was wiring, i.e. without, wiring 2 and 4 weeks before using, and the 3rd factor was manuring, i.e. with and without foliar application. Rootstock was ICS 60 seedlings of 30 day old, and grafting method was cleft grafting above cotyledons. Variables observed include C and N total of the grafstick, percentage of graftake, shoot length, diameter, wet and dry weight. The result showed that because the grafstick flush periodically, graftstick wiring was not effective to increase total nutrient (C and N) on the grafstick. Furthermore, their effect on the graftake was not significant. Until 30 days first, percentage of graftake was 90-100%, but then decreased sharply to 30-60% depend on the clones. From the first experiment, DR 2 showed the highest graftake (62%), and KW 162 (39%) was the 2nd ones. Symptom on the death plants was started on the new leaves, that showed wilt, necrotic then fall. Isolation of those symptoms in the laboratory showed that Rhizoctonia solani, Phytophthora palmivora and Colletotrichum gloeosporioides. Anatomical analysis of the death graft union showed parenchymatous linked, weak and hollow when microtomised. Health union showed lignified accumulation that made tight union. It can be concluded that early cocoa grafting will success if the nursery is separated far from cocoa plantation, the medium is steril from soil borne disease, the graftstick is health, and tying of graft union must tight enough, then disease control must be done properly.Key Words : Theobroma cacao, clone, wiring, graft union, graftake.


2019 ◽  
Vol 1 (2) ◽  
pp. 143-152
Author(s):  
Redho Anggara Nubriama ◽  
Erwin Pane ◽  
Sumihar Hutapea

Cacao is one of the predominant plantation in Indonesia so that the production should be improved constantly. The purpose of this researce was to obtain data on the growth of cacao seedlings (Theobroma cacao L.) by applying rabbit cage liquid organic fertilizer and composting baglog waste with different doses. This research was carried out at the Medan Area faculty of agriculture experiment area located on the street PBSI No.1 Medan Estate. The research was conducted  from  July to  November  2018.  Using  Factorial  Randomized  Group Desing (RGD) with two replications. The first factor tested was rabbit cage liquid organic fertilizer namely U0= without POC, U1= consentration 5% (50 ml POC/liter), U2= consentration 10% (100 ml POC/liter), U3= consentration 15% (150 ml POC/liter). The second   factor is baglog waste compost which is L0= without compost baglog waste, L1= 20% baglog compost waste (600g) + 80% top soil (2.400g), L2= 40% baglog compost waste (1.200g) + 60% top soil (1.800g), L3= 60% baglog compost waste (1.800g) + 40% top soil (1.200g). The results showed that administration of baglog waste compost can increase growth ( plant height, number of leaves, stem diameter and canopy wet weight) of cocoa seedlings


Author(s):  
Suswati Suswati ◽  
Asmah Indrawaty ◽  
Rizal Aziz ◽  
Eka Prasaditya Ramadhani

Growth of FHIA-17 Banana Seedlings with the Application of Hijauan Paitan Fertilizer (Titonia Diversifolia) and Cow Manure. The aim of this study was to obtain data on the growth of FHIA-17 banana seedlings after application of T.diversifolia forage and cow manure. Using a factorial Randomized Block Design (CRD) with two treatment factors. The first factor is the forage dose of T. diversifolia (P) with 5 levels, P0=Control; P1=12.5 g kg-1 planting medium (equivalent to 5 tons ha-1); P2=25 g kg-1 planting medium (equivalent to 10 tons ha-1); P3=37.5 g / kg of planting media (equivalent to 15 tons ha-1); P4=50 g kg-1 of growing media (equivalent to 20 tons ha-1). The second factor is the dose of cow manure (K) with 5 treatment levels namely, K0=Control; P1=12.5 g kg-1 of growing media (equivalent to 5 tons ha-1); K2=25 g kg-1 of growing media (equivalent to 10 tons ha-1); K3= 37.5 g kg-1 of growing media (equivalent to 15 tons ha-1); K4=50 g kg-1 planting medium (equivalent to 20 tons ha-1 and repeated 2 (two) times. Observed parameters were plant height (cm), number of leaves, stem circumference (mm), plant wet weight (g), plant dry weight (g). The results of this study indicate that the application of forage T. diversifolia significantly affected plant height and number of leaves. It’s not real with respect to all observational parameters.


Sign in / Sign up

Export Citation Format

Share Document