Year 2020, Volume 4 , Issue 2, Pages 157 - 164 2020-06-15

The effect of defoliant application on yield and yield components of some cotton (Gossypium hirsutum L.) cultivars at timely and late sowing

Hasan HALİLOĞLU [1] , Cevher İlhan CEVHERİ [2] , Vedat BEYYAVAŞ [3]


This study was aimed to assess the effect of defoliant application on yield and yield components of some cotton cultivars at timely and late sowing under Harran Plain conditions in 2017 and 2018 growing seasons. Field trials were arranged employing randomized blocks split-split plots design with 3 replications. In the study, sowing times (i.e.10th of May and 10th of June) consisted the main plots, cultivars (i.e. Candia and Lima) placed in the sub-plots and defoliant applications (i.e. Control and Dropp Ultra (600 ml ha-1)) were in the sub-subplots. Each plot was sown with a length of 12 m and 6 rows, with a 70 cm inter-row and 15 cm intra-row spacing. In the trials, the defoliant chemical called Dropp Ultra (i.e.120 g Thidiazuron + 60 g Diuron) was used. The application was practiced when the 60 % of boll opened. It was found that Candia and Lima cotton cultivars sown timely gave seed cotton yields of 5296.7 and 5073.3 kg ha-1 respectively, whereas at late sowing gave the seed cotton yields of 4672.5 kg ha-1 and 4545.8 kg ha-1in 2017 and 2018; Candia gave the higher seed cotton yield (i.e. 5179.2 in 2017 and 5013.3 kg ha-1 in 2018) than Lima cultivar (i.e. 4790.0 in 2017 and 4605.8 kg ha-1 in 2018) in both years. Results indicated that that the defoliant application increased the seed cotton yield comparing control plots. Defoliant application positively influenced the seed cotton yield (kg ha-1), plant height (cm), number of opened bolls (per plant-1), boll weight (g) and boll seed cotton weight (g). However, there were no significant effects on the number of bolls (per plant-1) and 100 seed weight (g). It was concluded that defoliant application and timely sowing can be recommended for farmers in the region.
Cotton, Defoliant, Yield, Yield components, Timely and late sowing
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Primary Language en
Subjects Agriculture, Plant Science, Agricultural, Engineering, Agriculture, Multidisciplinary
Published Date June 2020
Journal Section Research Articles
Authors

Orcid: 0000-0002-6826-3320
Author: Hasan HALİLOĞLU (Primary Author)
Institution: Harran Üniversitesi Ziraat Fakültesi Tarla Bitkileri Bölümü
Country: Turkey


Orcid: 0000-0002-7070-2652
Author: Cevher İlhan CEVHERİ
Institution: HARRAN UNIVERSITY, ŞANLIURFA TECHNICAL SCIENCES VOCATIONAL SCHOOL
Country: Turkey


Orcid: 0000-0001-6516-9403
Author: Vedat BEYYAVAŞ
Institution: HARRAN UNIVERSITY, FACULTY OF AGRICULTURE, DEPARTMENT OF FIELD CROPS
Country: Turkey


Dates

Application Date : January 2, 2020
Acceptance Date : April 10, 2020
Publication Date : June 15, 2020

Bibtex @research article { jaefs706564, journal = {International Journal of Agriculture Environment and Food Sciences}, issn = {}, eissn = {2618-5946}, address = {Dicle University Faculty of Agriculture Department of Horticulture, 21280 Diyarbakir / Turkey}, publisher = {Gültekin ÖZDEMİR}, year = {2020}, volume = {4}, pages = {157 - 164}, doi = {10.31015/jaefs.2020.2.5}, title = {The effect of defoliant application on yield and yield components of some cotton (Gossypium hirsutum L.) cultivars at timely and late sowing}, key = {cite}, author = {Hali̇loğlu, Hasan and Cevheri̇, Cevher İlhan and Beyyavaş, Vedat} }
APA Hali̇loğlu, H , Cevheri̇, C , Beyyavaş, V . (2020). The effect of defoliant application on yield and yield components of some cotton (Gossypium hirsutum L.) cultivars at timely and late sowing . International Journal of Agriculture Environment and Food Sciences , 4 (2) , 157-164 . DOI: 10.31015/jaefs.2020.2.5
MLA Hali̇loğlu, H , Cevheri̇, C , Beyyavaş, V . "The effect of defoliant application on yield and yield components of some cotton (Gossypium hirsutum L.) cultivars at timely and late sowing" . International Journal of Agriculture Environment and Food Sciences 4 (2020 ): 157-164 <https://dergipark.org.tr/en/pub/jaefs/issue/53546/706564>
Chicago Hali̇loğlu, H , Cevheri̇, C , Beyyavaş, V . "The effect of defoliant application on yield and yield components of some cotton (Gossypium hirsutum L.) cultivars at timely and late sowing". International Journal of Agriculture Environment and Food Sciences 4 (2020 ): 157-164
RIS TY - JOUR T1 - The effect of defoliant application on yield and yield components of some cotton (Gossypium hirsutum L.) cultivars at timely and late sowing AU - Hasan Hali̇loğlu , Cevher İlhan Cevheri̇ , Vedat Beyyavaş Y1 - 2020 PY - 2020 N1 - doi: 10.31015/jaefs.2020.2.5 DO - 10.31015/jaefs.2020.2.5 T2 - International Journal of Agriculture Environment and Food Sciences JF - Journal JO - JOR SP - 157 EP - 164 VL - 4 IS - 2 SN - -2618-5946 M3 - doi: 10.31015/jaefs.2020.2.5 UR - https://doi.org/10.31015/jaefs.2020.2.5 Y2 - 2020 ER -
EndNote %0 International Journal of Agriculture Environment and Food Sciences The effect of defoliant application on yield and yield components of some cotton (Gossypium hirsutum L.) cultivars at timely and late sowing %A Hasan Hali̇loğlu , Cevher İlhan Cevheri̇ , Vedat Beyyavaş %T The effect of defoliant application on yield and yield components of some cotton (Gossypium hirsutum L.) cultivars at timely and late sowing %D 2020 %J International Journal of Agriculture Environment and Food Sciences %P -2618-5946 %V 4 %N 2 %R doi: 10.31015/jaefs.2020.2.5 %U 10.31015/jaefs.2020.2.5
ISNAD Hali̇loğlu, Hasan , Cevheri̇, Cevher İlhan , Beyyavaş, Vedat . "The effect of defoliant application on yield and yield components of some cotton (Gossypium hirsutum L.) cultivars at timely and late sowing". International Journal of Agriculture Environment and Food Sciences 4 / 2 (June 2020): 157-164 . https://doi.org/10.31015/jaefs.2020.2.5
AMA Hali̇loğlu H , Cevheri̇ C , Beyyavaş V . The effect of defoliant application on yield and yield components of some cotton (Gossypium hirsutum L.) cultivars at timely and late sowing. int. j. agric. environ. food sci.. 2020; 4(2): 157-164.
Vancouver Hali̇loğlu H , Cevheri̇ C , Beyyavaş V . The effect of defoliant application on yield and yield components of some cotton (Gossypium hirsutum L.) cultivars at timely and late sowing. International Journal of Agriculture Environment and Food Sciences. 2020; 4(2): 157-164.