Growth Of Papaya Seedlings Research Articles

Effect of Different Levels of Cinder and Vermicompost on Germination and Seedling Growth of Papaya (Carica papaya c.v Red Lady) its Treatment with GA3

Effect of Different Levels of Cinder and Vermicompost on Germination and Seedling Growth of Papaya (Carica papaya c.v Red Lady) its Treatment with GA3

Effect of Washing and Non-washing of Seeds on Growth of Papaya Seedlings (Carica papaya L.) cv. Pusa Nanha

The present experiment was carried out to investigate the response of washing and non- washing of seeds on growth of papaya seedling at the CRC Farm, ITM University, Gwalior (M.P.). The experiment was set up in the Randomized Block Design using 4 media with or without washing of seeds with tap water comprising 12 treatments combinations (viz., controlled (soil + water), vermiwash (50%) + wood dust, vermiwash (50%) + cocopeat, vermiwash (50%) + pond soil, cow-urine (50%) + wood dust, cow-urine (50%) + cocopeat, cow-urine (50%) + pond soil, vermiwash (100%) + wood dust, vermiwash (100%) + cocopeat, vermiwash (100%) + pond soil, cow-urine (100%) + wood dust, cow-urine (100%) + cocopeat, cow-urine (100%) + pond soil which were replicated thrice. For experimental purpose, freshly ripe fruits of papaya were purchased from the papaya-growing farmer of IARI, New Delhi and seeds were sown in the poly bag (4x24 inch sized). The results indicated that the application of application of Vermiwash (100%) + pond soil recorded maximum height of seedling (cm), number of leaves per seedling, stem diameter (cm), leaf area (158.41 cm2), fresh weight of seedling (8.49g), dry weight of seedling (1.17 g), dry weight of shoot (0.334g), dry weight of root (0.779), root/shoot ratio (2.34) as compared to without washing of seeds and other rooting media. Thus, application of Vermiwash (100%) + pond soil was found to the best treatment among all the treatments and it gave the maximum growth attributes which will inturn improve the yield of papaya.

RESPON PERTUMBUHAN BIBIT TANAMAN PEPAYA (Carica papaya L.) TERHADAP PEMBERIAN PUPUK ORGANIK CAIR DAUN GAMAL

Papaya is a tropical plant that has a fruit that is rich in nutrients such as provitamin A, B vitamins, provitamin C, dietary minerals, lycopene and dietary fiber. The purpose of this study was to determine the growth response of papaya (Carica papaya L.) seedlings to the application of Gamal Leaf Liquid Organic Fertilizer (POC) at different doses. The study was carried out at the Wira Wacana Christian University Sumba agricultural garden laboratory, Kuta Village, Kanatang District, East Sumba Regency from September to October 2022, using a Completely Randomized Design (CRD) with 5 treatments and 4 replicates with P0 as control, P1, i.e. dosing POC is 50 ml/liter of water, P2 is giving a POC dose of 100 ml/liter of water, P3 is giving a POC dose of 150 ml/liter of water, and P4 is giving a POC dose of 200 ml/liter of water. The results showed that the application of leaf POC at various doses did not have a significant effect on the growth of papaya seedlings which included leaf area, stem diameter, number of leaves and plant height. However, the application of gamal leaf POC with a concentration of 200 ml/liter of water gave the highest average value among all treatments. Keyword: Papaya Seed Growth; Liquid Organic Fertilizer; Gamal Leaf

Growth of papaya seedlings on substrate consisting of poultry litter biochar

The choice of a substrate that meets the nutritional and physical demands of papaya seedlings with the use of organic wastes is directly linked to increases in crop yield and is an important environmental and economic alternative. Aiming to produce good-quality papaya seedlings while considering the composition and availability of substrates, this study examined the influence of applying increasing rates of poultry litter biochar as a substrate component in the production of papaya seedlings. The study was developed in a protected environment belonging to the Federal University of Campina Grande (UFCG). The experiment was laid out in a completely randomized design with a 6 × 2 factorial arrangement consisting of six rates of biochar (4, 8, 12, 16 and 20 t ha-1 and the control) and two papaya cultivars (Formosa and Ouro), with four replicates. Plant height, stem diameter, number of leaves and leaf area were evaluated 90 days after sowing. The fresh and dry biomass of shoots and root system and the Dickson Quality Index were also evaluated. In conclusion, the rates that provided good development of papaya seedlings were 8 and 16 t ha-1, and papaya cultivar Ouro showed better growth results.

Response Of Papaya (Carica papaya L.) Seeds Growth To The Gibberellin (GA3) and Cow Biourine

Papaya propagation from seeds has a major problem, namely seed germination takes a relatively long time. Experiments to determine the effect of gibberellin and cow bio urine concentrations on the growth of papaya seedlings were carried out at the Main Horticultural Seed Center of the Agriculture and Livestock Service Office of Buleleng Regency with an altitude of ± 200 m above sea level. The experiment used a factorial randomized block design consisting of two factors, namely the concentration of gibberellin and the concentration of bovine bio urine. Application of gibberellin significantly affected plant height, root length, root wet weight, root oven-dry weight, leaf wet weight, leaf oven-dry weight, total fresh weight, and total oven-dry weight. Gibberellin with a concentration of 150 ppm gave the highest total fresh weight and oven-dry weight, namely 14.63 g and 1.44 g respectively compared to other treatments. The concentration of cow bio urine had a significant effect on root length, very significantly on plant height 40 DST and 47 dd, stem oven-dry weight, leaf wet weight, leaf oven-dry weight, total fresh weight, and total oven-dry weight. Biourine with a concentration of 200 ml.l-1 gave the highest yield in total oven-dry weight per plant, namely 1.19 g. The combination of the concentration of gibberellin and bovine bio urine significantly affected the root length of the plant.

Growth and Initial Development of Papaya Plants (Sunrise Solo) in Different Concentrations of Biostimulants

The objective of this research was to evaluate the vegetative growth of papaya seedlings, propagated by seeds, regarding the use and application rates of two biostimulants in two types of soil. The experiment was carried out at the State University of Piauí (UESPI)/Campus de Corrente, with papaya (Carica papaya L.) as a research culture, on a screen at 50% brightness. The completely randomized design consisted of four treatments arranged according to the following application doses (0, 4, 8, 12, and 16 ml) using the biostimulant Solofull® and Stimulate® via soil, with six replicates per treatment, totaling 24 experimental units. The soil used came from two situations, soil 1 (area in process of degradation, Gilbués—PI) and soil 2 (pasture area, Corrente, PI). At 65 days after sowing, height, stem diameter, number of true leaves, leaf area, height ratio of plants, and stem diameter and root length were evaluated. The data were submitted to analysis of variance. The degraded area soil provided the best growth of the aerial part. The types of biostimulants and application doses used in this study did not provide significant differences between treatments.

The Response of Seed Germination and Seedling Growth Of Papaya (Carica papaya L.) CV CALINA to The Concentration Treatments and The Duration of Seed Soaked In Coconut Water

This research aimed to carry out the response of seed germination and seedling growth of Calina papaya to the seed soaked in coconut water. It was conducted from April to June 2017. The study comprised two designs of experiment i.e. the Completely Randomized Design for the seed germination and the Randomized Complete Block Design for the seedling growth of papaya. There were 25 treatment combinations obtained and each treatment was replicated three times. The treatment factors comprised the concentration and the duration of seed soaked in coconut water. The results showed that the seed immersion in the 80% concentration of coconut water for 8 hours had the highest growth rate and vigour index. Meanwhile, the seed immersion in the 60% concentration of coconut water for 8 hours showed the highest percentage of germination. The seed immersion for eight hours resulted in the seedling growth of papaya.

Effect of Irrigation Depths on the Growth of Papaya Seedlings

Effect of Irrigation Depths on the Growth of Papaya Seedlings

The Influence of Various Varieties and Various Liquid Organic Fertilizer to Papaya Plant Seed Growth (Carica papaya L.)

The main goal of the study was to determine the effect of various Papaya varieties and liquid organic fertilizer on the growth of Papaya seedlings(Carica papaya L.). The research used Randomized Block Design (RAK) with two factors factorial experimental. The first factor is Variety (V) consists of 3 Papaya varieties: v1= bangkok , v2= red lady , v3= sunrise. The second factor is Fertilizer (C) consists of 3 brands: c1= Em4 10 ml, c2= Green Tonic 10ml, c3= Nasa 10ml. This study has 3 treatment levels consisting of 9 combinations and repeated 3 times. The results of the study are treatment of various varieties (V) had significant effect on stem diameter and root number. The effect of various liquid organic fertilizer (C) had significant effect on the root length parameters. The interaction all treatment had a very significant effect on the root length and the root number parameter.

English

English

Effects of nine different propagation media on seed germination and the initial performance of papaya (Carica papaya L.) seedlings

SummaryAn experiment was undertaken in July and August in two consecutive years (2009 and 2010) to test the efficiency of nine propagation media of varying composition. Significant differences in germination percentages and in the initial performance of papaya (Carica papaya L.) seedlings were observed. The results showed that medium M9, consisting of a 1:1:1 (v/v/v) mix of vermicompost: sand: pond soil with a 20 mm-thick cocopeat layer, was characterised as having a lower bulk density, particle density, electrical conductivity and pH, as well as a higher water-holding capacity and plant nutrient content than all of the other media tested. Medium M9 was found to be optimal for the initial performance of papaya seedlings and gave the maximum rate of seedling emergence, the highest germination percentage, the highest seed vigour, and the shortest time for seed imbibition. Medium M9 was also found to be best for the subsequent growth of papaya seedlings. It gave the best performance in terms of seedling height, total leaf area per plant, number of leaves, stem diameter, number of roots, root length, total production of biomass, and the lowest root:shoot ratio. Medium M9 also significantly reduced seedling mortality and produced the healthiest seedlings (92.2% survival in 2009; 93.2% survival in 2010) in the shortest time (38.3 d in 2009; 38.1 d in 2010) with the highest net profit (approx. US$ 64.0 per 1,000 seedling in both years) and benefit:cost ratio (1.85 in 2009; 1.84 in 2010) compared to the other eight media tested in both years of experimentation.

Effect of Smoke-water on Seed Germination and Seedling Growth of Papaya (Carica papaya cv. Tainung No. 2)

Smoke-water is a chemical extract used to stimulate the germination of many plant species under cultivation. This study evaluated the efficacy of smoke-water on the seed germination and seedling growth of papaya (Carica papaya cv. Tainung No. 2). Smoke-water, prepared from dry rice straw (Oryza sativa) by burning and bubbling the smoke through water, was used for germination experiments, growth experiments, and anatomical structure changes of seeds. In the germination experiments, papaya seeds were soaked with different concentrations of smoke-water (0.1%, 0.2%, 1%, 2%, 3%, 4%, 5%, 7%, or 10%, v/v) for 24 h before planting. Low concentrations of smoke-water (0.1% or 0.2%, v/v) not only promoted the maximum rate of germination, but also shortened the germination time. Analysis of longitudinal sections of seeds treated with smoke-water concentrations of 0.1% or 0.2% v/v suggested that smoke-water could overcome water impermeability barriers, because it stimulated the seedcoat to rupture and allowed the radical to elongate and emerge faster. In the growth experiments, papaya seedlings were transplanted into peatmoss-filled pots that were saturated with different concentrations of smoke-water (0%, 1%, 2%, 3%, 4%, 5%, 7%, or 10%, v/v). Results showed that all growth parameters increased significantly compared with the control. In addition, smoke-water treatments consistently and significantly increased the percentage of nitrogen in roots and shoots and significantly increased the percentage of magnesium in shoots. In these experiments, smoke-water showed potent germination promotion at low concentrations and promoted multiple growth attributes such as chlorophyll content and seedling vigor index at all concentrations in papaya seedling production.

Effect of Red and Green Algal Extracts on Hyphal Growth of Arbuscular Mycorrhizal Fungi, and on Mycorrhizal Development and Growth of Papaya and Passionfruit

Arbuscular mycorrhizal (AM) fungi enhance terrestrial plant growth by forming a symbiotic relationship with the roots of its host plant. Effects of red and green algal extracts on in vitro hyphal growth of AM fungi, Gigaspora margarita and Glomus caledonium, and on the mycorrhizal development and growth of papaya seedlings and passionfruit cuttings were investigated. Three kinds of red algae, Gracilaria verrucosa, Gelidium amansii and Eucheuma cottonii, and a green alga, Chlorella pyrenoidosa, were extracted with 75% methyl alcohol (MeOH), and these extracts were fractionated by a flash chromatograph equipped with an octa decyl silane column and eluted with 0, 10, 25, 50, and 100% MeOH. Twenty‐five percent MeOH fractions (25% MeOH eluates) of each type of alga most significantly increased in vitro hyphal growth of AM fungi. Inhibition of AM hyphal growth was not observed in any of the fractioned MeOH eluates. Root colonization of papaya and of passionfruit were markedly stimulated by the application of the 25% MeOH eluates of red and green algal extracts. The growth of these plants were promoted in comparison to the control. These results suggest that red and green algae not only contain AM stimulatory substances, but also contribute to mycorrhizal development in higher plants.