ANBAR JOURNAL OF AGRICULTURAL SCIENCES

Abstract

A Field Experiment was conducted at the college of agriculture field –Al- anbar university during summary Season 2002 , to study the response growth and yield of six cotton cultivars (Saboory red , Natana ,Lashata ,Montana , Cocker 310 , Ashoor ) to three irrigation periods ( 5, 7, 9 ) days .
The main plots included irrigation periods , the cultivar considered as sub-plots ,a split block design was used with three replication . seeds were planted in ( 1 April ) with 75 cm spacing between rows and 25 cm between hills.
Many characteristics were evaluated and the following results were obtained :
- Ashoor cultivar gave higher rates of plant height , but Saboory red cultivar gave higher rates in number of symbodial / plant , cocker 310 cultivar gave higher rates of seed cotton yield 4209 kg/h , but Montana cultivar gave higher rates of linit cotton yield 1847.3 kg/h , fiber length ( 27.5Mm ) , fiber fineness ( 4.5) microner .
The irrigation period ( 9 days ) gave higher significant means in plant height , seed cotton yield , linit cotton yield ( 1872.5) kg/ha and fiber strength .
- A significant interactions were observed between cultivars and irrigation periods . A shoor cultivar with irrigation period ( 9 days ) gave higher significant means of seed cotton yield about 5171.4 kg/ ha. while Montana cultivar gave higher significant means of linit yield about 2422.3kg/ha to this same period,.