Role of Spraying Biostimulators Agazone and Atonik for Improvement of Storage Ability of Egg Plant (Solanum melongen L.) Hybrids: Jawaher and Barcelona | Chapter 1 | Research Advances and Challenges in Agricultural Sciences Vol. 6

The present study was conducted by using biostimulators, especially agazone and atonik, in improving storage ability of eggplant fruits hybrids of Jawaher and Barcelona. The new orientation in agriculture is to move away from the use of chemical fertilizers, chemical growth regulators and pesticides of different kinds and composition, because of their toxic effects on human and animal organisms. The experiment was conducted in one of the greenhouses of the Agricultural Research Station, College of Agriculture, University of Basrah, during the growing season 2017-2018 in order to improve the storage behavior of eggplant fruits hybrids Jawaher and Barcelona. Agazone. Solutions of agazone with three concentrations (0, 1.5 and 3) ml L-1, and atonik with three concentrations (0, 0.5 and 1) ml L-1 were prepared and the plants were sprayed in the early morning four times. Fruit firmness determined by using fruit pressure instrument, the weight loss was calculated as a percentages, Vitamin C determined according to A.O.A.C. Results indicated that the percentage of weight loss and the percentage of total soluble solids increased while the fruit firmness and the amount of vitamin C decreased with an increment of storage periods. The lowest percentages of the weight loss and the highest percentage of total soluble solids were in fruits treated with 3 ml L-1 agazone. Barcelona fruits gave the highest fruit firmness, vitamin C, total soluble solids and the lowest percentage of weight loss compared to Jawaher fruits, so the study recommended that spraying eggplant plants with agazone at a concentration of 3 3 ml L-1and atonik at a concentration of 1 ml L-1 for four times to improve the qualitative characteristics of the fruits when stored at 13°C for two weeks. Barcelona fruits gave the highest fruit firmness, vitamin C, total soluble solids and lowest percentage of weight loss compared to Jawaher during the two-week storage period, so for the purpose of organizing the display of the crop in the markets, it could be recommended for planting in unheated plastic house under the conditions of south of Iraq.

Author(s) Details:

Dhia Ahmed Taain,
Department of Horticulture and Landscape, College of Agriculture, University of Basrah, Iraq.

Iman Jarry Salman,
Department of Horticulture and Landscape, College of Agriculture, University of Basrah, Iraq.

Please see the link here: https://stm.bookpi.org/RACAS-V6/article/view/14143

Efficacy of Castor Oil as a Biopesticide for Treatment of Leucinodes orbitalis Guenee L., a Pest of Eggplant (Solanum melongena) | Chapter 9 | Research Advances and Challenges in Agricultural Sciences Vol. 5

Leucinodes orbonalis Guenee L. is a pest of eggplant. It is currently managed using synthetic chemical s. However, certain plants with insecticidal properties can be used to control Leucinodes orbonalis in eggplant. To study the efficacy of the castor oil solution on Leucinodes orbonalis, a trial was carried out at the ISAV in Faranah from 08/05 to 20/08/2023.Castor oil was extracted using a press machine with a yield of 0.41 l/kg. It was carried out at the station and in the laboratory. The experimental set-up used was a complete randomised block design with four replicates and five treatments. The treatments were D0 = 0 l/ha (control); D1 = 2.5 l/ha; D2 = 5 l/ha and D3 = 7.5 l/ha. The parameters monitored were: incidence of attack, number of plants leafed out and productivity. The survival of Leucinodes orbonalis larva after treatment was also estimated in vitro. The results showed that the incidence of attack after treatment was 68% for the control. However, this incidence was 10, 4 and 2% for doses D1, D2 and D3 respectively. With regard to the number of leafless plants, the rates were 68% for the control, 33% for D1, 17% for D2 and 8% for D3. Productivity was: 3.00 t/ha for the control; 5.00 t/ha for D1; 8.00 t/ha for D2 and 11.02 t/ha for D3. Survival of Leucinodes orbonalis larvae after application of the castor oil solution was 92%, 20%, 10% and 0% respectively for the control, D1, D2 and D3. Analysis of the results shows that the 7.5 l/ha dose of castor oil can be a good biopesticide for controlling Leucinodes orbonalis.

Author(s) Details:

Camara Mamadi Mariame,
Joseph KI-ZERBO University of Burkina Faso / Environmental Physics and Chemistry Laboratory, 03 BP: 7121, Ouagadougou, Burkina Faso and Higher Institute of Agronomy and Veterinary, Plant Protection Laboratory, BP: 131, Faranah, Conakry, Republic of Guinea.

Savadogo Paul Windinpsidi,
Joseph KI-ZERBO University of Burkina Faso / Environmental Physics and Chemistry Laboratory, 03 BP: 7121, Ouagadougou, Burkina Faso and National Centre for Scientific and Technological Research / Institute for the Environment and Agricultural Research (CNRST/INERA), Soil-Water-Plant Laboratory (SEP), 01 BP, 476 Ouagadougou 01, Burkina Faso.

Sangaré Lanciné,
Higher Institute of Agronomy and Veterinary, Plant Protection Laboratory, BP: 131, Faranah, Conakry, Republic of Guinea.

Please see the link here: https://stm.bookpi.org/RACAS-V5/article/view/13915