COMPARISON OF THE ONION PLANT (ALLIUM CEPA) AND ONION TISSUE CULTURE

1979 ◽  
Vol 83 (2) ◽  
pp. 351-359 ◽  
Author(s):  
C. SELBY ◽  
I. J. GALPIN ◽  
H. A. COLLIN
Keyword(s):  
Tissue Culture ◽  
Allium Cepa ◽  
Onion Plant

scholarly journals Sweet Onion (Allium cepa L.) as Influenced by Organic Fertilization Rate: 1. Plant Growth, and Leaf and Bulb Mineral Composition

HortScience ◽  
2018 ◽  
Vol 53 (4) ◽  
pp. 451-458
Author(s):  
Juan Carlos Díaz-Pérez ◽  
Jesús Bautista ◽  
Gunawati Gunawan ◽  
Anthony Bateman ◽  
Cliff Martin Riner
Keyword(s):  
Plant Growth ◽  
Allium Cepa ◽  
Organic Fertilizer ◽  
The United States ◽  
Fertilization Rate ◽  
Mineral Nutrients ◽  
N Leaching ◽  
Nutrient Deficiencies ◽  
Organic Fertilization ◽  
Onion Plant

Vidalia onions (Allium cepa L.) are sweet, short-day, low pungency, yellow Granex-type bulbs that are popular in the United States because of their mild flavor. There are limited studies on sweet onion plant growth in response to organic fertilization rate. The objective of this report was to evaluate the effects of organic fertilizer rates on sweet onion plant growth, and leaf and bulb mineral nutrients. Experiments were carried out at the Horticulture Farm, Tifton Campus, University of Georgia, in the Winters of 2012–13 and 2013–14. There were five treatments [organic fertilizer 3–2–3 equivalent to 0, 60, 120, 180, and 240 kg·ha−1 nitrogen (N)]. During the season and at the mature plant stage, root, stem, and bulb biomass increased whereas the root-to-shoot ratio decreased with increasing fertilization rate up to 120 kg·ha−1 N. Foliar concentrations of N and Ca decreased whereas Cu concentration increased with increasing organic fertilization rate. Bulb Mg and Mn increased whereas P and Cu decreased with increasing organic fertilization rate. The accumulation of mineral nutrients by onion whole plants increased quadratically (N, P, K, and S) or linearly (Ca and Mg) with increasing fertilization rate. The N use efficiency decreased with increasing organic fertilization rate; the agronomic efficiency of N (AEN) decreased quadratically and the marginal yield decreased linearly with increasing fertilization rate. Chlorophyll indices (CI) were highest with 240 kg·ha−1 N and lowest with 0 kg·ha−1 N. In conclusion, onion plant growth increased with increasing organic fertilizer rate probably because of augmented soil N levels. Observation of nutrient deficiencies late in the season, even at high organic fertilization rates, indicates that preplant application of organic fertilizer was sufficient to cover plant nutritional needs only partially and that applications of N fertilizer later in the season may be necessary. High application rates of organic fertilizer (above those required by the crop) may have resulted in significant N leaching because it is unlikely that the crop used most of the N that was mineralized. Bulb concentrations of P, K, Ca, Mg, S, B, Fe, Cu, and Mn were higher compared with values reported in the literature for onions produced with inorganic fertilizers.

Vegetative Multiplication of Onion, Allium cepa L., through Tissue Culture

1979 ◽  
Vol 48 (2) ◽  
pp. 186-194 ◽  
Author(s):  
Kunimitsu FUJIEDA ◽  
Norie MATSUOKA ◽  
Yukio FUJITA
Keyword(s):  
Tissue Culture ◽  
Allium Cepa ◽  
Allium Cepa L ◽  
Vegetative Multiplication

scholarly journals Farmer's Stance on Decreasing Production of Local Red Onion (Allium cepa L.) Farming in Buttu Pamboang Village, Majene

2020 ◽  
Vol 1 (1) ◽  
pp. 25-29
Author(s):  
Ikawati Karim
Keyword(s):  
Allium Cepa ◽  
Likert Scale ◽  
Production Data ◽  
Onion Plant ◽  
Foreign Markets ◽  
Commercial Farming ◽  
Allium Cepa L ◽  
The World ◽  
Strategic Role ◽  
Commodity Trading

In general, farmers in Buttu Pamboang Village in Majene District in carrying out the cultivation of onion plants have not applied the rules of cultivation correctly and precisely, resulting in a decline in crop. Agricultural commodities have a strategic role in realizing government policy to increase foreign exchange acquisition. The toughness of the role in the world trade globalization era is faced with the competition of commodity quality, both in domestic and foreign markets. This Era is characterized by the increasingly free commodity trading between countries in the world including vegetable commodities. In Indonesia, the local red onion plant (Allium cepa L.) has been cultivated by farmers as a commercial farming. However, the presence and demand of red onion that continue to increase every year cannot be followed by the increase in production. Data of the Agricultural office of Pamboang Village, October 2015 that the amount of local red onion productivity ranged from 5-6 tons and the production amount ranged from 10-12 tons with 2 ha of farmland area in 2014. It can be concluded that the production of local red onion in 2015 in the Pamboang Village decreased compared to the previous year, the red onion productivity of 2015 average ranged from 2-3 tons. This research aims to identify the attitude of farmers in Buttu Pamboang Village to decline in production in the onion farming business and know the factors that cause a decline in the production of local red onion in Buttu Pamboang Village in Pamboang District of Majene Regency. To identify the assessment of the farmer's stance, analyzed using Likert scale. The Likert scale is the identification of assessments to measure the attitudes and opinions and perceptions of the person/group on social symptoms. The results of the study proved that the attitude of farmers in Buttu Pamboang Village to the decline of production is good or well received.

Effect of Temperature and Photoperiod on Bulbing of the Common Onion (Allium Cepa L.) Under Arid Tropical Conditions of the Sudan

1967 ◽  
Vol 3 (2) ◽  
pp. 137-142 ◽  
Author(s):  
Abdalla A. Abdalla
Keyword(s):  
High Temperature ◽  
Allium Cepa ◽  
Seasonal Variations ◽  
Effect Of Temperature ◽  
Considerable Influence ◽  
Onion Plant ◽  
Allium Cepa L ◽  
Tropical Conditions ◽  
The Common ◽  
Common Onion

SummaryUnder the arid tropical conditions of the Sudan, where seasonal variations in photoperiod are small but where temperatures are high, there is evidence from the performance of both local and introduced onion varieties that temperature has considerable influence on bulbing. The onset of bulbing does not prohibit the emergence of bladed leaves under such high temperature conditions. The size of the onion plant may be an important factor in the bulbing response under conditions of high temperature and small variations in photoperiod.

scholarly journals PERTUMBUHAN BAWANG MERAH (Allium cepa L.) YANG DIBERI PUPUK KOMPOS CAIR DAN JAMUR MIKORIZA ARBUSKULAR

Biocelebes ◽  
2020 ◽  
Vol 14 (2) ◽  
pp. 150-161
Author(s):  
Riska Palesa ◽  
Wahyu Harso
Keyword(s):  
Allium Cepa ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Dry Weight ◽  
Fertilizer Application ◽  
Onion Plant ◽  
Shoot Dry Weight ◽  
Fungal Inoculum ◽  
Randomized Design ◽  
Allium Cepa L

The application of  liquid compost and of beneficial soil microorganism such as arbsucular mycorrhizal fungi can be used to replace chemical fertilizer application. The aim of this study was to investigate the growth of red onion (Allium cepa L.) plant fertilized by liquid compost and  inoculated by arbuscular mycorrhizal fungi. This study was conducted based on a completely randomized design with two factors. The first factor was an addition of liquid compost dosages (0, 50, 100 and 200 ml/polybag). The second factor was an addition of AM fungal inoculum (with and without addition). The results showed that the growth of red onion plant was not significantly affected by the addition of liquid compost and AM fungal inoculum.  However,  the red onion plant fertilized by 200 ml liquid compost per polybag had the lowest shoot dry weight. The addition of AM fungal inoculum was not increasing plant growth because the quality of used inoculum was not good.

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