INVESTIGATIONS CONCERNING SOME COTTON SPECIES BEHAVIOUR (GOSSYPIUM HIRSUTUM) IN TIMISOARA WEATHER CONDITIONS IN THE YEAR 2008 PUBLISHEDLiliana Roşculeţ, Valeriu Tabără None
The main purpose of the present work is to emphasize the behaviour of three cotton species (Marismas, Coko and Canada), from Greece and Canada, but in Timisoara weather conditions. The experimental field placed into a plane microrelief with a large area hollow, on a sol of cambic chernozem type. Bifactorial experience was placed in the field after the subdivided parcels method. The established experimental factors were: factor A – agrofund (a 1 - N 0 P 0 K 0 , a 2 - N 30 P 30 K 30 , a 3 - N 60 P 30 K 30 , a 4 - N 90 P 60 K 60 , a 5 - N 120 P 60 K 60 , a 6 - N 30 P 30 K 30 + foliar fertilization); factor B- species (b 1 - Marismas- Greece, b 2 - American provenance, b 3 - Coko- Greece). The applied technology for the cotton crop was representative in the big crop. After arising was made in turn density correction. It was realized monitoring and maintenance evolution in vegetation of the experimental factors and of its entire experience. The cropping is made when the capsule are completely opened, at the maturity. The cropping moment in our country is considered the one before the first hoarfrost dropping. After cropping the three cotton species were obtained productions of: blank cotton, fibres and seeds. An important role for production quantity and quality have the three fertilized macroelements: the azoth, phosphorus, and potassium. The effected investigations emphasized those influence on productions of blank cotton, fibres, and seeds. For established objects touching through investigation, the crop fertilization was differently made on the 6 agrofunds (a 1 - N 0 P 0 K 0 , a 2 - N 30 P 30 K 30 , a 3 - N 60 P 30 K 30 , a 4 - N 90 P 60 K 60 , a 5 - N 120 P 60 K 60 , a 6 - N 30 P 30 K 30 + foliar fertilization). The best production at Marismas species was obtained on agrofund a 4 - N 90 P 60 K 60 (relative 2863 kg/area blank cotton production) beside beholder variant a 1 - N 0 P 0 K 0 . The biggest production for Canada species was obtained on the agrofund a 4 - N 90 P 60 K 60 (2457 kg/area blank cotton). The big productions at Coko species was obtained on the agrofund a 4 - N 90 P 60 K 60 (2237 kg/area blank cotton). The three cotton species presented a good adaptability to weather conditions from Timisoara. The cotton has the capacity to acclimate itself at a low humidity, from hydrophilic aspect, and it receives fairly quickly xerofit plant features.
cotton species; behaivor; agrofunds; production