Improving Egyptian Cotton (Gossypium barbadense) Using Double Crosses
El-Kadi, D., Abd El-Shafi, M., El-Feki, T., Abd El- Mohsen, A., Abd Al Aziz, E. (2023). Improving Egyptian Cotton (Gossypium barbadense) Using Double Crosses. EKB Journal Management System, 45(1), 13-29. doi: 10.21608/agro.2023.167982.1343
D.A. El-Kadi; M.A. Abd El-Shafi; T.A. El-Feki; A.A. Abd El- Mohsen; Eman S. Abd Al Aziz. "Improving Egyptian Cotton (Gossypium barbadense) Using Double Crosses". EKB Journal Management System, 45, 1, 2023, 13-29. doi: 10.21608/agro.2023.167982.1343
El-Kadi, D., Abd El-Shafi, M., El-Feki, T., Abd El- Mohsen, A., Abd Al Aziz, E. (2023). 'Improving Egyptian Cotton (Gossypium barbadense) Using Double Crosses', EKB Journal Management System, 45(1), pp. 13-29. doi: 10.21608/agro.2023.167982.1343
El-Kadi, D., Abd El-Shafi, M., El-Feki, T., Abd El- Mohsen, A., Abd Al Aziz, E. Improving Egyptian Cotton (Gossypium barbadense) Using Double Crosses. EKB Journal Management System, 2023; 45(1): 13-29. doi: 10.21608/agro.2023.167982.1343

Improving Egyptian Cotton (Gossypium barbadense) Using Double Crosses

Egyptian Journal of Agronomy
Volume 45, Issue 1, April 2023, Page 13-29  XML PDF (1.23 MB)
Document Type: Original Article
DOI: 10.21608/agro.2023.167982.1343
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Authors
D.A. El-Kadi1; M.A. Abd El-Shafi1; T.A. El-Feki2; A.A. Abd El- Mohsen1; Eman S. Abd Al Aziz email 2
1Agronomy Department, Faculty of Agriculture, Cairo University, Giza, Egypt
2Cotton Research Institute, Agricultural Research Center, Giza, Egypt
Abstract
Genetic materials used in the present investigation included five cotton varieties belong to (Gossypium barbadense, L.). Three of these varieties were long staple, BBB (big black boll) (P1), Australian (P2) and G97 (P3) while the other two varieties were extra-long staple, Giza 92 (P4) and G96 (P5 ). Hybrids produced from these parents and the parents were evaluated in Sakha Agricultural Research Station, Kafr Al Sheikh Governorate, Egypt. Studied traits were; boll weight, number of bolls/plant, lint percentage, seed cotton yield, lint cotton yield, first fruiting node, days to first flower appearance, duration of the boll maturation, upper half mean (U.H.M), fiber strength and Micronaire value.. Difference between single crosses and double crosses) DC)  was highly significant for most studied traits. GCA mean squares  in all studied traits were significant for F1 except for days to first flower and fiber fineness (micronaire reading). GCA mean squares were significant for  DC except for lint%, fiber length and days to first flower. A very important issue of double-cross hybrids is the arrangement of parents, i.e., order effect, in the hybrids.
Keywords
Combing ability; Double crosses; Heritability; Gossypium barbadense; Order effect; Single crosses
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