Impact of chemical thinning to improve fruit characteristics of date palm cultivar khalas

Other Title(s)

تأثير الخف الكيمائي في تحسين الخصائص الثمرية لنخيل التمر صنف الإخلاص

Joint Authors

Ghazzawi, Hisham Sayyid
al-Hajhuj, Muhammad Rafdan
Salam, Abd al-Qadir Abd al-Qadir
Munir, Muhammad

Source

The Iraqi Journal of Agricultural Science

Issue

Vol. 50, Issue 5 (31 Oct. 2019), pp.1361-1368, 8 p.

Publisher

University of Baghdad College of Agriculture

Publication Date

2019-10-31

Country of Publication

Iraq

No. of Pages

8

Main Subjects

Botany

Topics

Abstract EN

A field study was conducted to observe the effects of chemical fruit thinning and their time of application on fruit yield and quality of date palm cv.

Khalas at Date Palm Research Center of Excellence, King Faisal University, Saudi Arabia.

Fourteen date palm trees were randomly selected for the experiment, which was laid out on two-factorial randomized complete block design having six replicates for each treatment.

Factor-one comprised of the six chemical (ammonium thiosulphate at 1, 2, and 3% and ethephon at 100, 200 and 300ppm) excluding control, whereas the second factor was the time of application of these two chemical thinners (5 and 10 days after pollination).

The findings of this study indicated that the chemical fruit thinning had definite effects on virtually all fruit quality characteristics.

Early application of chemical thinners after 5 days of pollination, significantly decreased the total fruits drop percentage and enhanced number of retained fruits, bunch weight, yield per palm, fruit color, fruit weight and length, seed weight, TSS, total and reducing sugars.

On the other hand, among chemical thinners, the application of ethephon at 300 ppm significantly improved previously mentioned parameters.

Similarly, ethephon at 200 or ATS at 3% also showed promising results.

It is therefore, concluded that the application of ethephon at 200 or 300ppm after 5 days of pollination influenced significantly regarding fruit yield and quality parameters of date palm cv.

Khalas.

American Psychological Association (APA)

Ghazzawi, Hisham Sayyid& al-Hajhuj, Muhammad Rafdan& Salam, Abd al-Qadir Abd al-Qadir& Munir, Muhammad. 2019. Impact of chemical thinning to improve fruit characteristics of date palm cultivar khalas. The Iraqi Journal of Agricultural Science،Vol. 50, no. 5, pp.1361-1368.
https://search.emarefa.net/detail/BIM-909947

Modern Language Association (MLA)

Ghazzawi, Hisham Sayyid…[et al.]. Impact of chemical thinning to improve fruit characteristics of date palm cultivar khalas. The Iraqi Journal of Agricultural Science Vol. 50, no. 5 (2019), pp.1361-1368.
https://search.emarefa.net/detail/BIM-909947

American Medical Association (AMA)

Ghazzawi, Hisham Sayyid& al-Hajhuj, Muhammad Rafdan& Salam, Abd al-Qadir Abd al-Qadir& Munir, Muhammad. Impact of chemical thinning to improve fruit characteristics of date palm cultivar khalas. The Iraqi Journal of Agricultural Science. 2019. Vol. 50, no. 5, pp.1361-1368.
https://search.emarefa.net/detail/BIM-909947

Data Type

Journal Articles

Language

English

Notes

Text in English ; abstracts in English and Arabic.

Record ID

BIM-909947