Quantity and quality of olives and olive oil as influenced by the olive fruit fly Bactrocera oleae and pesticides' application

العناوين الأخرى

تأثير الإصابة بذبابة ثمار الزيتون (Bactrocera oleae)‎ و استخدام المبيدات على كمية و نوعية ثمار الزيتون و زيته

مقدم أطروحة جامعية

al-Dumur, Siwar Jamil Salah

مشرف أطروحة جامعية

al-Absi, Khalid Musa
al-Zayyud, Firas Ahmad Khalaf

أعضاء اللجنة

al-Rawashidah, Abd Allah Yasin Abd al-Fattah
Furayhat, Nawwaf Muhammad
Uways, Said Juzif

الجامعة

جامعة مؤتة

الكلية

كلية الزراعة

القسم الأكاديمي

قسم الإنتاج النباتي

دولة الجامعة

الأردن

الدرجة العلمية

ماجستير

تاريخ الدرجة العلمية

2017

الملخص الإنجليزي

-The present study was carried out to determine the influence of olive fruit fly and different pesticides on physical and chemical prosperities of olive fruit as well as content and quality olive oil.

Two experiments were conducted during the olive season 2016/2017.

The first experiment was conducted at a private olive orchard located at Al-Jadaa in Karak District of Jordan (Latitude of 31°11" and Longitude of 35°42").

The experimental site is characterized by semi-arid conditions with relatively low rainfall.

In this experiment, three olive cultivars "Nabali", Nabali Muhassan" and "K18" were used.

For each cultivar, four levels of B.

oleae infestation were considered, namely; 0% (no infestation), 1-33% (low infestation), 34-67% (medium infestation) and 68-100% (high infestation).

A sample of olive fruits from each cultivar and infestation level was indiscriminately collected on October 15th, 2016, and the infestation level was visually determined and recorded by checking the percentage of fruit tissues' damage.

Hereafter, the infestation level was correlated with the olive quantity (drupe weight, drupe diameter, seed weight, flesh weight, and drupe volume, olive oil percentage,) and oil quality (acidity, peroxide value, and refractive index).

In the second experiment, Nabali olive cultivar was used.

This experiment was conducted to estimate the effect of insecticidal applications against B.

oleae on the quantity and quality of olive and is oil.

In regard to the chemical application, three materials were used; Lambda-cyhalothrin (Karate®, Pyrethroid); Chlorpyrifos (Dorspan®, Organophosphorus), and Phytoclean (non-synthetic).

Control treatment using water only.

The trees were sprayed twice by a knapsack sprayer.

The results indicated asignificant interaction between cultivar and level of infestation on acidity, peroxide value, drupe weight, drupe diameter, olive oil percentage and flesh weight.

K18 oilve was characterized by the highest drupe weight, oil percentage at zero infestation.

It gave the lowest acidity and peroxide value at 34-67% (medium) and 68-100% (high) infestation levels, respectively.

The results showed insignificant statistical interaction between olive cultivar and level of infestation on refractive index, seed weight and drupe volume.

Furthermore, application of Karate, Dorspan and Phytoclean pesticides considerably reduced olive acidity and peroxide value and increased both flesh and seed weight.

التخصصات الرئيسية

النبات

عدد الصفحات

43

قائمة المحتويات

• APA
• MLA
• AMA

لغة النص

الإنجليزية

نوع البيانات

رسائل جامعية

رقم السجل

BIM-780518