تأثير الكثافة النباتية و الأصناف في مكونات حاصل السلجم (Brassica napus L.)‎ تحت الظروف الديمية في شمال العراق

الملخص EN

The experiment was conducted at the college farm of Agriculture and Forestry – Mosul Univ .

for two seasons 2005/2007 , to determine the effect of three plants density (500000 , 333333 and 250000 plants ha-1 ) with two cultivars (pactol and shiralee) on growth and yield of rapeseed under semi arid condition.

The results showed that superiority of no.

of seeds/siliqua , seed yield , oil percentage and oil yield with500000 plants ha-1 for both seasons .

Pactol cultivar was superior on no.

of siliqua/plant , wt.

of 500 seeds , seed yield, oil percentage and oil yield for both seasons.

The interaction of 500000 plants ha-1 with pactol cultivar gave excellent result on seed and oil yield , which increased up to 4796 and 1759.4kg ha-1 in the first season and up to 3835.3 and 1325.3kg ha-1 in the second season .

Correlation between no.

of seeds/siliqua and wt.

of 500 seeds had positively related to no.

of siliqua/plant, while oil yield correlated positively with the seed yield for both seasons .