Growth Of Onion Research Articles

Effect of saline irrigation water on growth and yields of onion (Allium cepa L.) varieties

A pot experiment was conducted at Department of Agricultural Chemistry and Soil Science, College of Agriculture, Junagadh Agricultural University, Junagadh to assess the “Effect Of Saline Irrigation Water On Growth, Nutrients Composition And Yield Of Onion (Allium Cepa L.) Varieties” during the winter, season of 2017-18. The pot experiment comprised four levels of salinity viz.,

Effect of different organic growth promoters on growth and yield of Onion

A field experiment was conducted at college of horticulture, VNMKV, Parbhani dring kharif season of 2017 on a medium black cotton clay textured well drained soil to evaluate different organic growth promoters on growth and yield of Onion (Allium cepa L.). The experiment was laid out in a Randomized Block Design with 13 treatments replicated twice. Treatments consist of application of Vermiwash @ 5% and 10% (T1&T2), Panchagavya @ 3% and 6% (T3&T4), Humic acid @ 0.2% & 0.4% (T5&T6), Cow urine @ 5% and 7.5% (T7 &T8), Amritpani @ 3% and 6% (T9 &T10), combination of RDF + Vermiwash 5% + Panchagavya 3% + Humic acid 0.2% + cow urine 5% + Amritpani 3% (T11), Combination of RDF + Vermiwash @ 10% + Panchagavya 6% + Humic acid 0.4% + Cow urine 7.5% + Amritpani 6% (T12) and RDF i.e. 100:50:50 kg NPK/ha (T13). The outcome from experiment revealed that, all growth parameters like plant height, number of leaves, leaf length and width were recorded highest in treatment T12. As regards to yield, maximum values were obtained from the same treatment.

Studies on assessment of growth, yield and quality of white onion (Allium cepa L)

Onion (Allium cepa L.) is commercially cultivated and widely consumed as vegetable and as spices in India. About 73.23 million tons of onions are produced in the world from 3.65 million ha area. India, being major onion-producing country, produces 20.13 million tons from 1.19 million ha, with a very low productivity of 16.24 t/ha. Lack of recommended or released variety of high yielding as well as good keeping quality in the country, it creates price fluctuation during off season arrival period. To meet out the domestic requirement and also to fulfill the export demand, selection of high yielding genotype under different agro-climatic conditions is necessary. The trial was conducted at Nashik and Karnal during Rabi 2016-17, revealed that at Nashik significantly highest gross yield (337.22 q/ha) and marketable yield (312.78 q/ha) were recorded in advance line-857 and were at par with check variety Agrifound white. The total soluble solid and dry matter content exhibited non-significant differences. At Karnal highest gross yield (394.93 q/ha) and marketable yield (322.07 q/ha) were recorded in advance line-798 and line-629, respectively, and were at par with advance lines-629, 810, 878 and 886 in respect of gross yield, however, advance lines 810, 885, 886 and check variety Agrifound White regarding marketable yield. The highest total soluble solid (15.27%) was recorded in advance line-629 and was at par with advance lines-791, 798 and 837. It is concluded that the above genotypes can be utilized for white onion breeding programme for develop a good quality variety for different agroclimatic condition.

Exogenously applied proline enhances growth and productivity of drought stressed onion by improving photosynthetic efficiency, water use efficiency and up-regulating osmoprotectants

Drought and salinity are the main limiting factors negatively affect plant growth and productivity. Proline is recently reported to play a positive role in plants exposed to various abiotic stresses. A two year field experiment was implemented consecutively to assess the potential effect of exogenously applied proline (1 and 2 mM) under different irrigation water regimes (IWR) (120 %, 100 %, 80 % and 60 % of ETc.) on growth, plant defense system, physio-biochemical attributes, bulb yield and water use efficiency of onion cultivated in saline calcareous soil. Results showed that, exogenously-applied proline significantly enhanced growth as well as, plant water status, photosynthetic efficiency, and osmoprotectants of drought-stressed onion which consequently reflected in increased bulb yield. Treatments of 80 % and 60 % of ETc had increased water use efficiency (WUE) by 32.0 % and 26.5 % respectively, compared to full irrigation (100 % of ETc). The effect of proline was negligible on unstressed plants, but when applied under deficit irrigation (DI) treatments (80 and 60 % of ETc), WUE reached 50 % higher than control. These plants also had a higher content of total soluble sugars but a lower content of proline and amino acids. Exogenous proline application markedly enhanced onion growth traits compared to non-treated plants due to increased cell membrane integrity (MSI) and leaf water content (RWC), also improved photosynthetic efficiency and up-regulated osmoprotectants contents. Results revealed that proline foliar application on onion plants might attenuate drought stress by increasing their sugar content and via improving plant self-defense system. Consequently, combination of DI at 80 % and 1−2 mM proline is highly recommended to attain optimal yield with the opportunity of saving 20−40 % of irrigation water during onion growing season.

Effect of Bio-fertilizers on Growth, Yield and Quality Traits of Onion (Allium cepa L.)

The present experiment was conducted in the sandy loam soils during Rabi season in 2015-16 at Horticulture Research Farm-II of the Department of Applied Plant Science (Horticulture), Babasaheb Bhimrao Ambedkar University Lucknow (UP), India to study the Effect of Bio-fertilizers on Growth, Yield and Quality Traits of Onion (Allium Cepa L.). The experiment was laid in Randomized block design with three replications. The treatments consists of T1 (control), T2 (Azotobacter 50% + Azospirillum 50%), T3 (Azotobacter 50% + PSB 50%), T4 (Azospirillum 50% + PSB 50%), T5 (Azospirillum 50% + VAM 50%), T6 (NPK 100%, T7 (NPK 50%), T8 (Azotobacter 50% + NPK 50%), T9 (VAM 50% + PSB 50%), T10 (VAM 50% + NPK 50%), T11 (Azotobacter 50% + VAM 50%) and T12 (Azospirillum 100%). The execution of treatment T6 recorded significantly highest plant height, the number of leaves per plant, quality parameters and bulb yield (401.97 q/ha) and yield attributes over the rest of the treatment.

Response of drip irrigated onion (Allium cepa L.) growth yield and water productivity under deficit irrigation schedules

Response of drip irrigated onion (Allium cepa L.) growth yield and water productivity under deficit irrigation schedules

Soil water availability alter the weed community and its interference on onion crops

Agricultural practices act as an ecological filter of weeds, selecting those more adapted to the agrosystem. The stress conditions due to cultivation preparations shape the weed community, influencing the productive performance of the crops. Among these practices, irrigation can directly affect the establishment of some weeds, and a better-adapted community can intensify the degree of interference with agricultural cultures. This study aims to evaluate the changes in the weed community caused by two irrigation systems (high and low rates of water application) over three onion seasons, and how these changes affect the yield and efficiency of irrigated onion. The γ-, α-, and β diversity pf weeds was altered by onion cultivation over the three seasons. The irrigation system with a higher water supply (micro-sprinkler) favored diversity and weed richness, especially during the second cultivation year, compared to the system with water restriction (drip irrigation). Under the micro-sprinkler system, transition of the weed communities among years took place gradually. The higher level of stress created by drip management stimulated the dominance of Digitaria horizontalis. Non-control of weeds at 12 and 24 days after crop emergence reduced the onion crop yield. Besides that, this reduction in productivity indices was aggravated by the greater weed diversity under the micro-sprinkler system (high water supply). Under drip irrigation (low water supply), dominance intensify the competition of the weed community on the onion crop yield. The density of weeds and C4 species negatively affected onion growth under drip irrigation.

Response of Red Onion (Allium ascalonicum, L.) Growth and Yield Response on Coffee Husk Organic Fertilizer and Nitrogen at Various Dosage

Aplikasi pupuk organik sekam kopi dapat memperbaiki sifat biologi, fisik dan kimia tanah. Meski demikian, kandungan unsur hara pupuk organik sekam kopi tergolong rendah. Penggunaan pupuk sekam kopi dalam budidaya pertanian perlu penambahan pupuk sintetik karena kandungan unsur haranya yang rendah. Bawang merah ( Allium ascalonicum L.) termasuk tanaman yang membutuhkan N yang cukup tinggi. Penelitian ini bertujuan untuk membandingkan respon pertumbuhan dan hasil bawang merah yang dipupuk dengan pupuk organik sekam kopi dan N dengan dosis berbeda. Penelitian dilaksanakan pada bulan Januari – Maret 2019 di Lahan Pertanian Kelurahan Mubai, Kecamatan Lebong Selatan, Kabupaten Lebong, Bengkulu. Rancangan penelitian yang digunakanan adalah Rancangan Acak Kelompok Lengkap (RAKL) yang disusun secara faktorial yang terdiri dari 2 faktor. Faktor pertama adalah pupuk organik limbah kopi yang terdiri atas 4 taraf, yaitu 0, 5, 10 dan 15 ton/ha. Faktor kedua yaitu dosis N (Urea) yang terdiri dari 4 taraf yaitu kontrol (0 kg/ha), 150, 300, dan 450 kg/ha. Hasil penelitian menunjukkan, pemberian pupuk organik sekam kopi pada dosis yang berbeda dapat meningkatkan tinggi tanaman secara linier terhadap bobot umbi per rumpun dan hasil per petak. Tinggi tanaman dan hasil umbi per petak juga meningkat secara linear seiring dengan meningkatnya dosis pupuk urea yang digunakan.

Phosphorus fertilization and intercropping interactively affect tomato and potato onion growth and rhizosphere arbuscular mycorrhizal fungal community

ABSTRACT Arbuscular mycorrhizal fungi (AMF) play key roles in nutrient cycling and supporting agricultural productivity. Although both phosphorus (P) fertilization and plant–plant interactions can induce changes in the AMF community, if and how their interaction effects can affect the AMF community remain unknown. A greenhouse experiment was conducted to investigate plant growth, P concentration and content and AMF root colonization in intercropped potato onion and tomato system under five P levels. Quantitative PCR and Illumina MiSeq sequencing were applied to evaluate AMF community abundance and composition. Enhanced growth and P concentration of intercropped tomato were most pronounced without P fertilization compared with monocropping system, while interspecific interactions negatively affected potato onion growth. Intercropping increased AMF abundance in tomato but decreased that in potato onion, although higher P fertilization depressed AMF abundance, diversity and root colonization. AMF community compositions of the two plants were primarily affected by P fertilization, and the AMF composition of potato onion was also separated by cropping system. Overall, interspecific interactions between tomato and potato onion were asymmetric with a negative effect on potato onion growth. P fertilization had a stronger influence than intercropping on rhizosphere AMF community, and interspecific interactions on the AMF community were not symmetric.

Zinc Oxide and Zinc Oxide Nanoparticles Impact on In Vitro Germination and Seedling Growth in Allium cepa L.

Zinc oxide nanoparticles (ZnO NPs) are ones of the most commonly manufactured nanomaterials worldwide. They can be used as a zinc fertilizer in agriculture to enhance yielding and to control the occurrence of diseases thanks to its broad antifungal and antibacterial action. The aim of this study was to investigate and compare the effects of ZnO submicron particles (ZnO SMPs) and ZnO NPs on the process of in vitro seed germination and seedling growth in onion (Allium cepa L. ‘Sochaczewska’), and to indicate the potential use of these compounds in onion production. In the experiment, disinfected seeds were inoculated on the modified Murashige and Skoog (MS) medium and poured with ZnO SMP or ZnO NP water suspension, at the concentrations of 50, 100, 200, 400, 800, 1600, and 3200 mg∙L−1. During three successive weeks, the germinating seeds were counted. Germination started most often on the second or third day of in vitro culture. The highest share of germination was recorded for seeds treated with 800 mg∙L−1 ZnO SMPs and ZnO NPs (52% and 56%, respectively). After the application of ZnO SMPs and ZnO NPs at the highest tested concentration (3200 mg∙L−1), the share of germinating seeds was only 19% and 11%, respectively. Interestingly, seedlings obtained from control seeds and seeds treated with ZnO SMPs and ZnO NPs did not differ statistically in terms of length, fresh weight, and dry weight of leaves, and roots. Both ZnO SMPs and ZnO NPs, in the concentration range from 50 to 1600 mg∙L−1, can be used to stimulate the germination process of onion seeds, without negative effects on the further growth and development of seedlings. There were no differences found between the action of ZnO NPs and ZnO SMPs, which suggested that the most important factor influencing seed germination was in fact the concentration of zinc ions, not the particle size.

Efficacy of herbicides on weed growth and bulb yield in onion under kymour plateau region of Madhya Pradesh, India

Efficacy of herbicides on weed growth and bulb yield in onion under kymour plateau region of Madhya Pradesh, India

RESPON DUA VARIETAS BAWANG MERAH (Allium ascalonicum L.) DALAM MENINGKATKAN PRODUKSI DENGAN PEMBERIAN PUPUK KCL DI KECAMATAN RANTAU SELATAN

The decline in productivity of shallots (Allium ascalonicum L.) is one of the horticultural crops that are consumed by many Indonesian people, therefore it is necessary to provide potassium elements on the onion crop. Where potassium in plants is very important, it plays a role as a factor in the enzymes in the process of plant metabolism, stomata regulation, and CO assimilation. Meanwhile, if the lack of potassium causes small tubers so that production decreases. This study aims to determine the response of growth and yield of onion (Allium ascalonicum L.) to several varieties and dosages of KCL fertilizer. This research was conducted in the experimental area of the Faculty of Science and Technology of Labuhabatu University, South Rantau District with a height of 13 meters above sea level. The materials used in this study were Sumenep and Maja Cipanas Shallot Seed Varieties, Urea Fertilizer, TSP and KCl. The tools used in this study are the Global Positioning System (GPS), hoe, fat, meter, sample traces, scales, ovens and stationery that support this research. This research uses factorial randomized block design with 2 factors and 3 replications, namely: Factor 1: V1 = Variety of Sumenep and V2 = Maja Cipanas and Factor 2 of fertilizer dose P0 ,, Control, P1 = 50 gram / plot, P2 = 100 gram / plot, P3 = 150 gram / plot). The parameters observed were sample wet weight, plot dry weight, and the number of plot production. Research Results Showing the dosage treatment gave an effect on the growth and production of shallots with the best dose of 150 grams/plot. An interaction occurred between KCL fertilizer dosage and onion varieties on plant height, number of leaves, number of tubers, wet weight, number of production and dry weight of onion plants. Keywords: Shallot, KCL Fertilizer, Production Results, Rantau Selatan District

Effects of Seedlings Transplanting Time on The Growth And Yield of Onion at Different AEZs

Effects of Seedlings Transplanting Time on The Growth And Yield of Onion at Different AEZs

Influence of salicylic acid on growth, yield and quality attributes of onion under temperate conditions

An experiment was conducted during rabi-2017-18, and 2018-2019 at experimental field of Division of Vegetable Sciences of, SKUAST-Kashmir with six treatments and three replications in randomised block design. The treatment consists of foliar spray of Salicylic acid at the rate of 250 mg/L at different intervals to study difference in plant height (cm), number of leaves, polar diameter (cms), Equatorial diameter (cm), Average bulb weight (gms), neck thickness and bulb yield including quality as well as storage parameters of onion bulb. The pooled results indicated that significant improvement in vegetative, growth yield and quality parameters were found as compared to control application. Foliar application of salicylclic acid at 30 & 120 days after transplanting recorded maximum plant height (81.55 cms), number of leaves/plant (12.95), Average Bulb weight (98.70 gms), maximum polar diameter (6.38 cms), equatorial diameter (7.16 cms), total bulb yield (322.81 q ha-1), neck thickness (0.46 cms), and also same treatment registered maximum quality attributes like dry matter content (15.31), soluble solid content (11.92 0Brix), Pyruvic Acid (µmol g-1) content (7.66 mg/100 g) besides lowest storage losses were also recorded with same treatment (9.15%).

Effect of sulphur and boron on growth and quality of onion (Allium cepa L.)

The investigation was conducted during rabi seasons of 2017-18 at the horticulture farm nursery, College of Agriculture, Gwalior. The study involve Sixteen treatment combinations consisting of four sulphur levels viz. S0: Control, S1: 20 kg S ha-1, S2: 40 kg S ha-1, S3: 60 kg S ha-1 and four doses of Boron, i.e. B0: Control, B1: 0.5 kg B ha-1, B2: 1.0 kg B ha-1 and B3: 2.0 kg B ha-1 in factorial randomized block design with three replications. The recommended dose of fertilizer (RDF) adopted was 100:60: 80 kg of N: P: K ha-1. The increasing level of sulphur and boron up to 60 kg ha-1 and 2.0 kg B ha-1 increased growth and bulb quality significantly over control respectively

Respon Pertumbuhan, Produksi Dan Persentase Serangan Penyakit Pada Tanaman Bawang Merah (Allium Ascalonicum L.) Yang Di Beri 3 Jenis Kompos Kulit Buah Dan Poc Kubis

Onion is one of predominant flavor in Indonesia culinary which its quantity should be increased contantly. The aim of research was to invesitigate the respond of onion growth toward the treatment combination between POC cabbage and Tree types of fruit skin. This research was performed in a Factorial Randomized Block Design (RBD), which consists of 2 treatment factors, namely: 1) compost 2) liquid organic fertilizer of cabbage waste. The parameters observed in this study were plant height, number of leaves, number of tubers per sample plant, production per sample, production per plot and percentage of plant disease attack. As for the results obtained from this study, namely: 1) Giving various types of fruit skin compost did not significantly affect height, number of leaves, number of tubers, production per sample plant and production per plot of onion plants; 2) liquid organic fertilizer cabbage application has no significant effect on height, number of leaves, number of tubers and production per sample plant, but has a significant effect on production per plot of onion plant; and 3) Combination between the fruits compost and the liquid organic fertilizer that is not real influence on the plant height, the number of leaves, the number of bulbs and production per crop samples, but the effect is very real towards production per plot of the anion plants

Prediction of Weights during Growth Stages of Onion Using Agricultural Data Analysis Method

In this study, we propose a new agricultural data analysis method that can predict the weight during the growth stages of the field onion using a functional regression model. We have used onion weight on growth stages as the response variable and six environmental factors such as average temperature, average ground temperature, rainfall, wind speed, sunshine, and humidity as the explanatory variables in the functional regression model. We then define a least minimum integral squared residual (LMISE) measure to obtain an estimate of the function regression coefficient. In addition, a principal component regression analysis was applied to derive the estimates that minimize the defined measures. Next, to evaluate the performance of the proposed model, data were collected, and the following results were identified through analyses of the collected data. First, through graphical and correlation analysis, the ground temperature, mean temperature, and humidity have a very significant effect on the onion weights, but environmental factors such as wind speed, sunshine, and rainfall have a small negative effect on onion weights. Second, through functional regression analysis, we can determine that the ground temperature, sunshine, and precipitation have a significant effect on onion growth and are essential in the goodness-of-fit test. On the other hand, wind speed, mean temperature, and humidity did not significantly affect onion growth. In conclusion, to promote onion growth, the appropriate ground temperature and amount of sunshine are essential, the rainfall and the humidity must be low, and the appropriate wind or mean temperature must be maintained.

Natural ZPT Effect on Growth and Production of Shallot (Allium ascalonicum L)

The purpose of this research is to know the influence of the natural ZPT to the growth and production of onion plants as well as to find out the best of 5 naturally tested treatments. Based on the research that has been carried out the results that the administration of ZPT naturally against the growth of red onions has a noticeable effect on the number of bulbs, fresh weight bulbs and dry weight bulbs. However, no real effect on the high observation parameters of plants and the number of leaves. Natural shallot treatment ZPT is best compared to 4 other treatments. Which gives the growth and production of the most excellent shallots

Yield of onion in soil with cattle manure and nitrogen

ABSTRACT Onion is the third vegetable crop in economic importance for Brazil, only behind potato and tomato, and responds with increased production to the use of organic and mineral fertilizers. The objective of this study was to evaluate the effect of doses of cattle manure and nitrogen (N) on onion growth and yield. The experimental design used was randomized blocks, in 6 x 2 factorial scheme, corresponding to six doses of cattle manure (0; 10; 20; 30; 40 and 50 t ha-1), in the presence and absence of N, with four repetitions. The variables studied were: shoot fresh and dry masses, total and marketable bulb yields, percentage of bulbs classified and leaf N content. There was an interactive effect (p ≤ 0.05) of cattle manure and N doses on shoot fresh and dry masses, total and marketable yields, classification of bulbs according to transverse diameter and N concentration in onion bulbs. The optimal dose for marketable yield of bulbs is 27 t ha-1 of cattle manure in the presence of N.

Role of Marine Algae Extracts in Water Stress Resistance of Onion Under Semiarid Conditions

Availability of water for food production is a global concern; thus, increasing water productivity has been become a necessary. Deficit irrigation is a good strategy to increase water use efficiency, but it may affect negatively on plant physiology and crop productivity. Little is known about the effect of marine algae extracts on water stress resistance and yield of onion grown on semiarid regions. Therefore, field experiments were conducted in 2018 and 2019 growing seasons to study the effect of foliar application of marine alga (Amphora ovalis) extracts (at rate of 0, 3, 6 or 9%) on onion grown under normal irrigation (80% of available soil water) or water stress (50% of available soil water). The field experiments were laid out in a split-plot design with four replicates. The highest dose of algal extract sprayed on onion grown under water stress significantly (P < 0.05) increased N, P, and K uptake by 116, 113, and 93% compared to the unsprayed plants. The application of 9% algal extract for onion grown under water stress significantly (P < 0.05) increased the bulb yield by 67 and 102%, respectively, in 2018 and 2019 growing seasons. Water stress reduced the chlorophyll production as a result of directing most of plant’s energy to produce water-resistant materials such as proline and phenols. Algal extract reduced the negative effects of water stress and caused significant increases in onion growth and yield.