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 Effect of selected biostimulants on the yield and quality of the common onion (Allium cepa L.)

2019 ◽  
Vol 26 (1) ◽  
pp. 57-65 ◽  
Author(s):  
Emilia Mikulewicz ◽  
Joanna Majkowska-Gadomska ◽  
Krzysztof Jadwisieńczak ◽  
Anna Francke
Keyword(s):  
Allium Cepa ◽  
Yield And Quality ◽  
Allium Cepa L ◽  
The Common ◽  
Common Onion

Gibberellic acid as a gametocide for the common onion (Allium cepa L.)

Euphytica ◽  
1973 ◽  
Vol 22 (2) ◽  
pp. 239-243 ◽  
Author(s):  
Q. P. Van der Meer ◽  
J. L. Van Bennekom
Keyword(s):  
Gibberellic Acid ◽  
Allium Cepa ◽  
Allium Cepa L ◽  
The Common ◽  
Common Onion

Gibberellic acid as a gametocide for the common onion (Allium cepa L.). II. The effect of GA 4/7

Euphytica ◽  
1976 ◽  
Vol 25 (1) ◽  
pp. 293-296 ◽  
Author(s):  
Q. P. van der Meer ◽  
J. L. van Bennekom
Keyword(s):  
Gibberellic Acid ◽  
Allium Cepa ◽  
Allium Cepa L ◽  
The Common ◽  
Common Onion

scholarly journals Correlation between heavy metal ions (copper, zinc, lead) concentrations and root length of Allium cepa L. in polluted river water

2005 ◽  
Vol 48 (spe) ◽  
pp. 191-196 ◽  
Author(s):  
Soraya Moreno Palacio ◽  
Fernando Rodolfo Espinoza-Quiñones ◽  
Raquel Manozzo Galante ◽  
Dilcemara Cristina Zenatti ◽  
Araceli Aparecida Seolatto ◽  
...  
Keyword(s):  
Root Growth ◽  
River Water ◽  
Allium Cepa ◽  
Heavy Metal Ions ◽  
Polluted River ◽  
Allium Cepa L ◽  
Copper Zinc ◽  
The Common ◽  
Concentration Levels ◽  
Common Onion

The present work was performed using the common onion (Allium cepa L.) as a bioindicator of toxicity of heavy metals in river water. The test waters were collected at two sampling sites: at the beginning and the end of the Toledo River. The bulbs of A. cepa L. were grown in test water with nine concentration levels of copper, zinc and lead from 0.1 to 50 ppm. In the laboratory, the influence of these test liquids on the root growth was examined during five days. For test liquids containing below 0.03-ppm dissolved Cu the root growth was reduced by 40% However, the same reduction occurred for 1-ppm dissolved Zn. For dissolved Pb, results reveal toxicity above 0.1 and 0.6 ppm at the beginning and the end of the Toledo river water, respectively.

Gibberellins as gametocides for the common onion (Allium cepa L.). III. GA4+7 and pollen viability

Euphytica ◽  
1982 ◽  
Vol 31 (2) ◽  
pp. 503-506 ◽  
Author(s):  
Q. P. van der Meer ◽  
J. L. van Bennekom
Keyword(s):  
Allium Cepa ◽  
Pollen Viability ◽  
Allium Cepa L ◽  
The Common ◽  
Common Onion

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.

Sign in / Sign up

Export Citation Format

Share Document