12
DEC
2024

Selectivity and stability of the herbicidal product Envoke applied during the vegetation of cotton (Gossypium hirsutum L.)

T. Barakova* Agricultural Academy, Field Crop Institute, 6200, Chirpan, Bulgaria (Manuscript received 2 June 2023; accepted for publication 23 June 2024) Abstract. The research was conducted during the period 2020-2022 in the experimental field of the Field Crops Institute – Chirpan,
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12
DEC
2024

Inheritance, heterosis and combining ability analysis in line × tester crosses of cotton

Dimitrova, M. Koleva*, N. Valkova Agricultural Academy, Field Crop Institute, 6200 Chirpan, Bulgaria (Manuscript received 6 July 2023; accepted for publication 28 May 2024) Abstract. The aim of this research was to study heterosis, combining ability and genetic control of most importa
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01
JUL
2024

Grouping of Bulgarian and foreign cotton varieties by cluster analysis

N. Valkova, M. Koleva* Agricultural Academy, Field Crops Institute, 6200 Chirpan, Bulgaria (Manuscript received 2 June 2023; accepted for publication 25 March 2024) Abstract. During the period 2016-2019, 21 Bulgarian and 10 foreign cotton varieties were included in a trial set by the
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23
DEC
2023

Effects of the share types of an inter-row cultivator at different working depths on weed control and plant growth in cotton production

S. Gürsoy1*, C. Özaalan2 1Department of Agricultural Machinery and Technologies Engineering, Faculty of Agriculture Dicle University, 21280 Diyarbakır, Turkiye 2Plant Protection Department, Faculty of Agriculture, Dicle University, 21280 Diyarbakır, Turkiye (Manuscript received 2 Sept
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29
MAR
2022

Qualitative evaluation of the norm of reaction of Bulgarian and foreign cotton cultivars

N. Valkova, M. Koleva* Field Crops Institute, 6200 Chirpan, Agricultural Academy, Sofia, Bulgaria (Manuscript received 14 October 2021; accepted for publication 16 January 2022) Abstract. The norm of reaction in qualitative aspect was studied in 31 Bulgarian and foreign cotton cultiva
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22
DEC
2021

Influence of duration of storage and pre-sowing electromagnetic treatment on the development of the primary root system of cotton seeds

M. Koleva*, M. Radevska Field Crops Institute, 6200 Chirpan, Bulgaria (Manuscript received 14 August 2021; accepted for publication 26 October 2021) Abstract. Seeds of five Bulgarian cotton varieties, stored for one and two years, were subjected to five pre-sowing electromagnetic trea
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30
SEP
2021

Breeding assessment of new promising cotton lines

V. Dimitrova, R. Dragov Field Crops Institute – Chirpan, 6200 Chirpan, Bulgaria (Manuscript received 7 June 2021; accepted for publication 2 August 2021) Abstract. Cotton breeding in Bulgaria is mainly aimed at improving the earliness, productivity and fiber quality of modern va
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27
SEP
2019

After-effect of foliar-applied herbicides for broad-leaved weeds on the primary germ weight of cotton seeds (Gossypium hirsutum L.)

Barakova, St. Georgiev   Field Crops Institute, 6200, Chirpan, Bulgaria   (Manuscript received 25 June 2019; accepted for publication 15 August 2019)   Abstract. The trial was carried out during 2013-2015, with twelve cotton cultivars (Gossypium hirsutum L.). Influence of herbici
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26
SEP
2017

Problems and achievements of cotton (Gossypium Hirsutum L.) weeds control

T. Barakova1*, G. Delchev2 1Field Crops Institute, 6200 Chirpan, Bulgaria 2Department of Plant Production, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 2 June 2017; accepted for publication 17 August 2017) Abstract. Weed control in the cu
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29
JUN
2016

Selectivity and stability of vegetation-applied herbicides in cotton (Gossypium hirsutum L.)

T. Barakova1*, G. Delchev2 1Field Crops Institute, 6200 Chirpan, Bulgaria 2Department of Plant Production, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 16 May 2016; accepted for publication 26 May 2016) Abstract. An experiment was carried
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