scholarly journals Growth of Spinach Plant (Amaranthus tricolor L.) by Application of Kascing Organic Fertilizer and Bamboo Leaf Litter Mulch

2018 ◽  
Vol 19 (1) ◽  
pp. 37
Author(s):  
Tia Setiawati ◽  
Fitryasari Rahmawati ◽  
Titin Supriatun
Keyword(s):  
Plant Height ◽  
Leaf Litter ◽  
Organic Fertilizer ◽  
Dry Weight ◽  
Optimal Dosage ◽  
Amaranthus Tricolor ◽  
Root Dry Weight ◽  
Shoot Dry Weight ◽  
Spinach Plant ◽  
Number Of Leaves

Spinach (Amaranthus tricolor L.). is one of the vegetables that are economically valuable with high nutrient content to support public health so that its production needs to be improved. The purpose of study was to obtained the optimal dosage of kascing organic fertilizer and the thickness of the bamboo leaf litter mulch on increase growth of spinach. The research used experimental method with randomize block design (RBD), two factors and three replications. The first factor was the adding of kascing organic fertilizer (K), consist of five levels doses, i.e: without adding kascing fertilizer (k0); 2.5 g/kg of soil (k1); 5 g/kg of soil (k2); 7.5 g/kg of soil (k3) and 10 g/kg of soil (k4). The second factor was bamboo leaf litter mulch (M), consist of three levels, i.e: without mulch (m0); mulch with thickness of 2.5 cm (m1); mulch with thickness of 5 cm (m2). Parameter observed were the plant height, the number of leaves, the leaf area, the shoot dry weight and the root dry weight. The data obtained was analyze using Anova and Duncan’s Multiple Range Test (α=5%). The results showed that interaction between dosage of kascing fertilizer with bamboos leaves litter mulch could increase the average of plant height (50.17 cm), number of leaves (40.33 leaves), shoot dry weight (5.77 g) and root dry weight (1.78 g) of spinach. Commonly, kascing organic fertilizer dose of 5 g/kg of soil (k2) and bamboos leaves litter mulch on the tickness of 5 cm (m2) combination was the best treatment for growth of spinach. Keywords: bamboo leaf litter, mulch, organic fertilizer of kascing, spinach

scholarly journals Phytotoxic Effects of Aqueous Extracts of Olax subscorpioidea Oliv. on Seed Germination and Growth Parameters of Maize (Zea mays L.)

2020 ◽  
pp. 22-28
Author(s):  
O. S. Olubode ◽  
D. O. Ayoola
Keyword(s):  
Plant Height ◽  
Growth Parameters ◽  
Dry Weight ◽  
Wild Plants ◽  
Aqueous Extracts ◽  
Maize Seedlings ◽  
Root Dry Weight ◽  
Shoot Dry Weight ◽  
Phytotoxic Effects ◽  
Number Of Leaves

Phytotoxicity of wild plants is sometimes utilized in the control of weeds. Their effects on crops are however not extensively documented. Effects of aqueous extracts of Olax subscorpioidea Oliv. were thus examined on seeds and seedlings of maize. Two experiments were laid out in complete randomized designs (CRD) and replicated five times. Ten seeds of maize were initially placed in separate petri-dishes and moistened daily with two (2) ml water extracts of different parts of Olax sp. while 2 ml of distilled water served as control. Secondly, maize seedlings growing on top soil in experimental pots were treated with 100 ml of extracts at seven days intervals for eight weeks. Data were collected on number of germinated seeds daily, and lengths of five randomly selected plumules and radicles at 7 days after sowing (DAS). Number of leaves, plant height, root dry weight and shoot dry weight of seedling were measured using standard methods. Analysis of variance and Duncan’s Multiple Range Test were conducted to statistically determine significant means at P=0.05. Mean germination of (0.71±0.00) was observed at 2 DAS and 2.81±0.10 at 7 DAS. Leaf extracts significantly reduced germinability, but significantly increased number of leaves, plant height (26±1.28), root dry weight (10.30±3.24) and shoot dry weight (14.99±2.13). The results showed that Olax subscorpioidea has alloallelopathic (phytotoxic) effects on maize seeds, but stimulated growth of maize seedlings. Its use as a bio-herbicide or growth stimulant in should be well-timed.

scholarly journals UTanggap Beberapa Dosis Pupuk Organik Kascing Terhadap Pertumbuhan Dan Hasil Tanaman Sawi (Brassica juncea L.) Yang Berbeda Varietas

Agrologia ◽  
2018 ◽  
Vol 7 (2) ◽  
Author(s):  
Teguh Yuda Pratama ◽  
Nurmayulis Nurmayulis ◽  
Imas Rohmawati
Keyword(s):  
Plant Height ◽  
Brassica Juncea ◽  
Block Design ◽  
Organic Fertilizer ◽  
Dry Weight ◽  
Growth And Yield ◽  
Experimental Unit ◽  
Fresh Weight ◽  
Root Dry Weight ◽  
Number Of Leaves

The research was aimed to know the effect of dose of organic fertilizer to growth and yield varieties of mustard (Brassica juncea L.). The method used was a randomized block design a Randomized Completely Block Design with 2 factors. The first factor was the organic fertilizer, namely (P) and the second factor was the variety. The first factors was the organic vermicompost, which consists of 4 levels, namely: P0 = 0 g / plant, P1 = 30 g / plant, P2 = 60 g / plant, P3 = 90 g / plant the second factor was varieties, which consists of three levels, namely: V1 = Tosakan varieties, V2 = Kumala varieties, V3 = Sri Tanjung varieties. Thus there was 12 combinations of treatment, each treatment was repeated three times, in order to get 36 experimental unit. Parameters measured were plant height, number of leaves, plant fresh weight, plant dry weight, root dry weight. The results of this research showed that vermicompost fertilizer showed significant effect on the observation parameters plant height, root length, fresh weight of plant, plant dry weight, root dry weight. Vermicompost fertilizer dose of 60 g / plant give the best average results in almost all variables observation (plant height 18,6 g, fresh weight of plant 10,3 g, plant dry weight 1,3 g and root dry weight 0,4 g. Kumala varieties gave the highest rates in the observation parameters number of leaves 7,2 sheet and fresh weight of plant 10,0 g. The interaction of both treatment showed no real effect on all parameters of observation.

scholarly journals RESPONS FISIOLOGIS DAN ANATOMI AKAR TANAMAN BAYAM (Amaranthus tricolor L.) TERHADAP CEKAMAN NaCl

2020 ◽  
Vol 25 (1) ◽  
pp. 36-43
Author(s):  
Ian Prabowo ◽  
Diah Rachmawati
Keyword(s):  
Plant Growth ◽  
Chlorophyll Content ◽  
Plant Height ◽  
Dry Weight ◽  
Nacl Stress ◽  
Amaranthus Tricolor ◽  
Root Cortex ◽  
Spinach Plant ◽  
Number Of Leaves ◽  
Root Stele

Tujuan dari penelitian ini untuk mengetahui pengaruh cekaman NaCl terhadap pertumbuhan dan anatomi akar tanaman bayam serta mengetahui konsentrasi NaCl yang dapat menghambat pertumbuhan tanaman bayam. Penelitian ini digunakan perlakuan NaCl sebanyak 0, 200, 400, 600 dan 800 mM pada tanaman bayam (Amaranthus tricolor L.), Media tanam berupa campuran tanah dan pupuk kandang dan alkohol, safranin, aseton. Alat yang digunakan adalah med line, cawan poerslen, spektrofotometer dan mikroskop. Parameter yang diukur meliputi tinggi tanaman, jumlah daun, warna daun, panjang akar, jumlah akar, berat basah, berat kering, kadar klorofil, tebal epidermis akar, tebal korteks akar dan diameter stele akar. Data dianalisis dengan uji ANOVA dilanjutkan dengan DMRT taraf kepercayaan 95% menggunakan program SPSS 15. Hasil yang diperoleh menunjukkan penambahan NaCl menyebabkan penurunan pertumbuhan tanaman bayam meliputi tinggi tanaman, jumlah daun, kadar klorofil, rasio tajuk dibanding akar dan menurunkan diameter stele akar. Pertumbuhan tanaman menurun seiring peningkatan konsentrasi NaCl karena NaCl menyebabkan cekaman osmotik yang menghambat penyerapan air dan unsur hara yang diperlukan tanaman untuk proses metabolisme.PHYSIOLOGICAL RESPONSE AND ANATOMY OF ROOTY PLANT [ Amaranthus tricolor L.] AGAINST NaClThe study was aimed at determining the effect of NaCl stress on the growth and anatomy of spinach roots and the concentration of NaCl which can inhibit the growth of spinach plants. This study used 0, 200, 400, 600 and 800 mM NaCl treatments on spinach (Amaranthus tricolor L.), planting media in the form of a mixture of soil and manure and alcohol, safranin, acetone. Med line, poerslen cup, spectrophotometer, and microscope were used in this study. The parameters measured plant height, number of leaves, leaf color, root length, number of roots, wet weight, dry weight, chlorophyll content, root epidermis thickness, root cortex thickness, and root stele diameter. The collected data then were analyzed by ANOVA test followed by DMRT 95% confidence level using the SPSS 15 program. The results obtained showed that the addition of NaCl caused a decrease in spinach plant growth including plant height, the number of leaves, chlorophyll content, the ratio of the crown to root and decreased diameter of root stele. Plant growth decreases with increasing NaCl concentration since NaCl causes osmotic stress. This stress inhibits the absorption of water and nutrients needed by plants for metabolic processes.

scholarly journals MODIFICAÇÕES NO MEIO DE CULTURA, FOTOPERÍODO E TEMPO DE CULTIVO AFETAM O ALONGAMENTO E ENRAIZAMENTO IN VITRO DE BANANEIRA CV. PACOVAN

Nativa ◽  
2018 ◽  
Vol 6 (1) ◽  
pp. 27
Author(s):  
Marcos Vinícius Marques Pinheiro ◽  
Ana Cristina Portugal Pinto De Carvalho ◽  
Fabrina Bolzan Martins
Keyword(s):  
Plant Height ◽  
Culture Medium ◽  
Culture Media ◽  
Dry Weight ◽  
Salt Mixture ◽  
Musa Spp ◽  
Fresh Biomass ◽  
Shoot Dry Weight ◽  
Number Of Leaves

No intuito de elevar as taxas de sobrevivência durante a etapa de aclimatização e posterior plantio a campo, avaliou-se o enraizamento in vitro de bananeira cv. Pacovan, em diferentes concentrações de sais MS e de sacarose. Utilizou-se DIC, esquema fatorial (6x2x3), com seis meios de cultura [sendo três concentrações de nutrientes do meio MS (100%; 50% de macronutrientes; e 50% dos sais macro e micronutrientes), e duas concentrações de sacarose (1,5/3,0%)], dois fotoperíodos (12/16 h) e três tempos de cultivo (21, 28 ou 35 dias) e seis repetições/tratamento. Analisaram-se: altura da planta, número de folhas/planta, massas frescas e secas das partes aérea e radicular. Para altura da planta, massa fresca da parte aérea e radicular, o meio MS 50% dos sais + sacarose (1,5%) com fotoperíodo de 16 h e tempo de cultivo de 35 dias foi satisfatório. Para massa seca da parte aérea foi MS 50% de sais + sacarose (3%), e para massa seca da parte radicular, MS 100% + sacarose (3%) (em 12hs/28 dias e 16hs/21 dias). Para o alongamento/enraizamento in vitro da bananeira cv. Pacovan sugere-se MS 50% de sais (macro e micronutrientes), redução ou manutenção de sacarose (1,5 ou 3%) em 16h/35 dias de cultivo.Palavra-chave: Musa spp., propagação in vitro, sistema radicular. CHANGES IN CULTURE MEDIUM, PHOTOPERIOD AND TIME OF CULTIVATION AFFECT THE IN VITRO ELONGATION AND ROOTING OF BANANA CV. PACOVAN ABSTRACT:In order to achieve high rates of survival during the acclimatization and later planting in the field, was evaluated the in vitro of banana cv. Pacovan plants under different concentrations of sucrose and MS basal salt mixture. The experiment was assembled in a DIC, in 6x2x3, six different culture media [three different MS salt mixture concentrations (100%; 50% of macronutrients; and 50% of macro/micronutrients) and two sucrose concentrations (1.5/3%)], two photoperiods (12/16 hours) and three cultivation times (21, 28 or 35 days). Each treatment was composed by 6 replicates. Plant height, number of leaves/plant, fresh and dry weight of roots and shoots, were analyzed. Satisfactory results for plant height and shoot and root fresh biomass were observed in MS with macro/micronutrients (50%) + sucrose (3%), 16 hours/35 days. The highest values of shoot dry weight were observed in MS with macro/micronutrients (50%) + sucrose (3%); the highest root dry weight was achieved with MS 100% + sucrose (3%) (12hs/28 and 16hs/21 days). The suggested medium for the in vitro elongation and rooting stage of banana cv. Pacovan is the MS with 50% of salts (macro and micronutrients), reduction or maintenance of sucrose (1.5 or 3%) in 16h/35 days of cultivation.Keywords: Musa spp., in vitro propagation, root system. DOI:

scholarly journals THE GROWTH RATE OF CELERY (Apium graveolens L.) AT VARIOUS COMPOSITIONS OF ORGANIC AND SYNTHETIC FERTILIZER

2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Ghani Hendrika ◽  
Arifah Rahayu ◽  
Yanyan Mulyaningsih
Keyword(s):  
Plant Height ◽  
Dry Weight ◽  
Apium Graveolens ◽  
Fresh Weight ◽  
Higher Plant ◽  
Root Dry Weight ◽  
Synthetic Fertilizer ◽  
K Fertilizer ◽  
Compost Plant ◽  
Number Of Leaves

This study was aimed at assessing the growth and production of celery plants grown with various compositions of N,P and K fertilizer and compost. The study was done at the Trial Farm of Faculty of Agriculture, Djuanda University, Bogor fiom September to November 2015. A completely randomized design with two factors was used. The factors consisted of compost rate and N,P and K fertilizer rate. Compost was given in four levels, namely no compost (0% R), 26.3% gcompost/plant (50% R), 52.5 g compost/plant (100% R), and 78.7 g compost/plant (150% R). N, P and K fertilizer was given in five levels, namely no fertilizer (0% R), 4 g Urea, 0.3 g SP-36, 0.2 g KCl (25% R), 0.9 g Urea, 0.6 g SP-36, 0.4 g KCI (50% R), 1.3 g Urea, 0.8 g SP-36, 0.6 g KCl (75% R), and 1.7 g Urea, 1.1 g SP-36, 0.8 g KCl (100% R). All fertilizers were administered gradually at the time of planting and 2 weeks after planting. Three replicates were allocated into each treatment making up 60 experimental units. Results showed that celery plants given synthetic fertilizer at 100% R had higher plant height, number of leaves, number of seedlings, harvest fresh weight (g), saleable fresh weight (g), root biomass (g), and root dry weight (g) than those treated with no fertilizer (0% R). Plants treated with 150% compost had higher plant height, number of leaves, harvest fresh weight (g), saleable fresh weight (g), root length (cm), and root dry weight (g) than those treated with no fertilizer (0% R). Thus the best celery growth and production in this study was obtained on plant 150% R compost   and 100% R synthetic fertilizer nourished.Key words: celery, compost, N, P, K fertilizer, harvest flesh weight

scholarly journals Effect of water hyacinth compost on the morpho-physiological parameters of Soybean (Glycine max l.)

2021 ◽  
Vol 2 (1) ◽  
pp. 084-095
Author(s):  
Ogbuehi HC ◽  
Ibe PK
Keyword(s):  
Glycine Max ◽  
Leaf Area ◽  
Plant Height ◽  
Water Hyacinth ◽  
Seed Weight ◽  
Dry Weight ◽  
Effect Of Water ◽  
Shoot Dry Weight ◽  
Glycine Max L ◽  
Number Of Leaves

A pot experiment was conducted under rainfed condition to study the effect of water hyacinth compost on the morpho-physiological parameters of soybean (Glycine max L.) at the Teaching and Research Farm of Faculty of Agriculture and Veterinary Medicine, Imo State University, Owerri. The treatments were control (T1) 100g (T2), 150g (T3) and 200g (T4) of water hyacinth compost and replicated four times. The treatments were arranged in Complete Randomized Design (CRD). The parameters measured were plant height, number of leaves, leaf area (cm2), leaf area index, relative growth rate (RGR), Net assimilation rate (NAR), shoot dry weight(g), yield and yield components (Number of pods, pods weight, 100 seed weight). The results obtained indicated that T3 significantly produced highest plant height (57.6cm) compare to control. While it was observed that T4 (200g) significantly produced the highest number of leaves (233.25), leaf area (631.80cm2), shoot dry weight (15.445g), number of pods (129.75), pod weights (25.38g) seed weight (7.23g) and yield (0.72kg/ha) relative to control and other treatment levels. Root parameters were also significantly improved by the rates of water hyacinth application compared to control. It will be worthy to note that there was no nodulation perhaps that was why the yield was poor. The results showed that soybean growth can effectively be improved with incorporation of water hyacinth into soil.

scholarly journals 354 REDUCING ROOTING-OUT PROBLEMS IN POT-IN-POT PRODUCTION SYSTEMS

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 481d-481
Author(s):  
John M. Ruter
Keyword(s):  
Plant Height ◽  
Production Systems ◽  
Dry Weight ◽  
Weight Percent ◽  
Total Biomass ◽  
Copper Hydroxide ◽  
Latex Paint ◽  
Commercial Formulation ◽  
Root Dry Weight ◽  
Shoot Dry Weight

A study was conducted with Lagerstroemia indica x fauriei `Acom a' to evaluate methods for reducing rooting-out problems in a PIP production system. The products tested were Biobarrier™, a geotextile fabric impregnated with trifluralin; Root Control'” fabric bag material; and Spin Out™, a commercial formulation of copper hydroxide (7.1%) in latex paint. Biobarrier™ reduced plant height, shoot dry weight, percent root dry weight outside of the planted container and total biomass compared to the non-treated control. For the control, 7.1% of the total root dry weight was found between the holder pot and planted container compared to 0.2% for the Biobarrier™ treatment. When the holder pot and planted container or the planted container and Root Control™ fabric were both treated with Spin Out™, plant height and shoot dry weight were reduced. Spin Out™ reduced root circling on the sidewalls of the planted containers but not on the bottom of the containers. All treatments except the control reduced rooting-out to a degree that allowed for the manual harvesting of the planted container from the holder pot after seven months in the field.

PEMBERIAN PUPUK ORGANIK DAN JARAK TANAM UNTUK PERTUMBUHAN DAN HASIL TANAMAN BAWANG MERAH (Allium ascalonicum L.)

2017 ◽  
Vol 13 (2) ◽  
pp. 94-102
Author(s):  
Dessy A Ralahalu ◽  
Rhony E Ririhena ◽  
Abdul K Kilkoda
Keyword(s):  
Plant Height ◽  
Block Design ◽  
Organic Fertilizer ◽  
Dry Weight ◽  
Mosaic Disease ◽  
Growth And Yield ◽  
Randomized Block Design ◽  
Wet Weight ◽  
Number Of Leaves ◽  
Planting Distance

This study aims to examine the effect of concentration of liquid organic fertilizer supermes on various spacing to the growth and yield of onion. The experiment was conducted in Dusun Telaga Kodok, Hitu Lama Village, Leihitu Barat District, Central Maluku District, from March to April 2017. The experiment used was a Randomized Block Design with three replications. The concentration of liquid organic fertilizer supermes consists of: 0, 2, 4, 6 mL/L water. Plant ing distance consists of: 10 × 15 cm, 15 × 15 cm and 20 × 15 cm. Varieties used were varieties of Bima Brebes. Parameters measured were plant height, number of leaves, number of tubers, root length, wet weight and dry weight of tubers. During the experiment, rainfall and rainy days were quite high at the research location. This condition causes the crop to be harvested at 41 HST because it is attacked by ground caterpillar, mosaic disease and purple spots. The application of liquid organic fertilizer has not shown any significant effect to the growth and yield parameters of shallot crop. Planting distance of 15 × 15 cm shows the effect on plant height and number of leaves at 35 HST, tuber weight and tuber dry weight and there is a significant interaction on the leaf number at 35 HST with concentration of 4 mL/L water and Planting Distance 15 × 15 cm. Keywords: liquid organic fertilizer, planting distance, red onion   ABSTRAK Penelitian ini bertujuan untuk menguji pengaruh konsentrasi pupuk organik cair supermes pada berbagai jarak tanam terhadap pertumbuhan dan hasil bawang merah. Penelitian dilaksanakan di Dusun Telaga Kodok, Desa Hitu Lama Kecamatan Leihitu Barat, Kabupaten Maluku Tengah, dari bulan Maret sampai dengan April 2017. Percobaan menggunakan Rancangan Acak Kelompok dengan tiga ulangan. Konsentrasi pupuk organik cair Supermes terdiri dari 0, 2, 4, 6 mL/L air. Jarak tanam terdiri dari 10 ×15 cm, 15 × 15 cm, dan 20 × 15 cm. Varietas yang digunakan adalah varietas Bima Brebes. Paramater yang diukur adalah tinggi tanaman, jumlah daun, jumlah umbi, panjang akar, bobot basah dan bobot kering umbi. Selama percobaan berlangsung curah hujan dan hari hujan cukup tinggi terjadi di lokasi penelitian. Kondisi ini menyebabkan tanaman dipanen pada umur 41 HST karena diserang oleh hama ulat tanah, penyakit mozaik dan bercak ungu. Pemberian pupuk organik cair belum memberikan pengaruh yang nyata terhadap parameter pertumbuhan dan hasil tanaman bawang merah. Jarak tanaman 15 × 15 cm berpengaruh terhadap tinggi tanaman dan jumlah daun pada 35 HST, bobot basah umbi dan bobot kering umbi serta adanya interaksi perlakuan yang nyata terhadap jumlah daun pada umur 35 HST dengan konsentrasi 4 mL/L air dan jarak tanam 15 × 15 cm. Kata kunci: bawang merah, jarak tanam, pupuk organik cair

Effect of Rhizobium inoculation to nodulation and growth of soybean [Glycine max (L.) Merrill] Germplasm

2018 ◽  
Author(s):  
Sakka Samudin ◽  
Heru Kuswantoro
Keyword(s):  
Plant Height ◽  
Root Length ◽  
Root Nodules ◽  
Dry Weight ◽  
Limiting Factor ◽  
Rhizobium Inoculation ◽  
Root Dry Weight ◽  
Shoot Dry Weight ◽  
Glycine Max L ◽  
Inoculation Treatment

Nitrogen is an important macronutrient mineral that is needed in the largest amount by the plant and is the main limiting factor for plant development. Rhizobium is a group of bacteria capable of providing nutrients for soybean crops. When symbiotic with legume crops, this group of bacteria is able to infect plant roots and form root nodules. The study aimed to investigate the effect of Rhizobium on nodulation and growth of some soybean germplasm. The results showed no interaction between the inoculation treatment and the genotype. The significant effect of inoculation was shown by the number of nodules, nodule dry weight, root length, and root dry weight. Inoculation did not affect plant height and shoot dry weight. These traits were more influenced by genetic factors. In the condition without inoculation, the root length was higher but the root dry weight was lower. Plant height differed between the genotypes. KPT5 and KPT6 showed the highest plant height than any other genotypes. Both genotypes also had the highest shoot dry weight. The highest shoot dry weight was also achieved by KPT4.

scholarly journals Growth of tomato seedlings in substrates containing a nanocomposite hydrogel with calcium montmorillonite (NC-MMt)

2019 ◽  
Vol 37 (2) ◽  
pp. 199-203
Author(s):  
Raphael AC Melo ◽  
Marçal HA Jorge ◽  
Adriel Bortolin ◽  
Leonardo S Boiteux ◽  
Caue R Oliveira ◽  
...  
Keyword(s):  
Plant Height ◽  
Weight Ratio ◽  
Dry Weight ◽  
Pine Bark ◽  
Peat Moss ◽  
Water Retention Capacity ◽  
Nanocomposite Hydrogel ◽  
Tomato Seedlings ◽  
Root Dry Weight ◽  
Shoot Dry Weight

ABSTRACT The correct use of hydrogels in some situations can increase seedling survival rates, plant growth, and the water-retention capacity of the growing medium. A technique for the production of a nanocomposite hydrogel using calcium montmorillonite (NC-MMt) was recently developed. However, additional research is necessary in order to validate this innovative input, particularly for the production of vegetable crops seedlings. In this context, the main objective of the present study was to evaluate the growth and development of seedlings, tomato hybrid ‘BRS Nagai’, in substrates containing different amendments of hydrogel NC-MMt. The trial was conducted in a 3x3 factorial arranged in a complete randomized blocks design, with three replications. Three substrates (peat moss, pine bark, and coconut peat) corresponded to the first factor and three rates of the NC-MMt hydrogel (0%= R1, 1.5%= R2 and 2.0%= R3, on a w/w basis) corresponded to the second factor. Each plot was composed of 16 plants that were assessed after three weeks. Overall, peat moss-based and pine bark-based substrates resulted in higher values for most of the analyzed traits: plant emergency percentage, plant height, stem diameter, leaf area, plant height/shoot dry weight ratio, root dry weight, shoot dry weight/root dry weight ratio and the Dickinson Quality Index. Rates of NC-MMt hydrogel displayed significant responses only to root superficial area and root volume. NC-MMt hydrogel amendment (mainly 1.5%) combined with specific substrates (mainly peat moss-based substrate) was able to improve the growth of ‘BRS Nagai’ tomato seedlings, with no observed toxic effects.

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