EFFECT OF HILL SPACING AND NITROGEN FERTILIZATION LEVEL ON THE NEW PROMISING EGYPTIAN COTTON HYBRID GIZA 90 X AUSTRALIAN | ||||
| Fayoum Journal of Agricultural Research and Development | ||||
| Article 4, Volume 26, Issue 1, January 2012, Page 38-48 PDF (645.77 K) | ||||
| Document Type: Research articles. | ||||
| DOI: 10.21608/fjard.2012.194676 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| K.K. Abdel-Malak; M. A. Emara; S.A. Hamoda | ||||
| Agronomy Research Section, Cotton Research Institute, Agricultural Research Center, Giza, Egypt. | ||||
| Abstract | ||||
| Two field experiments were carried out in Mallawy Agricultural Research Station, Minia Governorate, Middle Egypt, during 2010 and 2011 seasons to find out the effect off hill spacing and nitrogen fertilization level on the new promising Egyptian cotton hybrid Giza 90 x Australian (Gossypium barbadense L.,). The experimental design was a split plot block with four replications. The main plots were devoted to four hill spacings (20, 25, 30 and 35 cm) and the sub plots for four nitrogen fertilization levels (30, 45, 60 and 75kg N/fed.). The results indicated that hill spacing and nitrogen fertilization levels had significant effects on no. of sympodia/plant, earliness %, no. of open bolls/plant, boll weight and seed cotton yield/fed while, but not on plant height, first sympodial position, seed index and lint %. Increasing hill spacing to 35 cm between hills significantly increased no of sympodia/plant, no. of open bolls/plant, boll weight, seed cotton yield/fed, but decreased earliness %. Increasing N levels from 30 to 75 kg N/fed exhibited a significant increase in each of no. of sympodia/plants, no. of harvested plants/fed, earliness %, no. of open bolls/plant, boll weight and seed cotton yield/fed. The interaction between hill spacing and nitrogen level exerted significant effects on no. of sympodia/plant, earliness % and boll weight in both seasons, no. of open bolls/plant in the first season and seed cotton yield/fed in the second season. The combination between 35 cm hill spacing and 60 or 75 Kg N/fed. gave the highest averages of no. of sympodia/plant, boll weight, no. of open bolls/plant and seed cotton yield/fed. The effect of hill spacing and nitrogen fertilization level and their interactions did not exhibit any significant effect on all fiber properties under study. It could be concluded that 35 cm hill spacing and 60 Kg N/fed. could be recommended production of this new cotton hybrid Giza 90 x Australian under Middle Egypt location. | ||||
| Keywords | ||||
| Cotton; Hybrid; Hill spacing; Nitrogen fertilization; Growth; Productivity and Fiber | ||||
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