Two field experiments were carried out at Gemmeiza Agric. Res. Station Farm, El-Gharbia
Governorate in 1995/96 and 1996/97 seasous, to study the effect of row spacing and nitrogen levels on yield and
quality of Giza 7 flax variety. Each experiment included 20 treatments which were the combination of four row
spacings (broadcasting, 15,20 and 25 cm between rows) and five levels of nitrogen (zero, 15,30,45 and 60 kg
N/fed). The design of the experiment was split plot design. Results obtained indicated that row spacing did not
affect significantly stem diameter, upper branching zone length, seed index and seed yield! plant in the two
seasons. On the other hand, it affected significantly fiber yield/fed, total fiber percentage and fiber fineness in the
two growing seasons. Row spacing affected significantly total stern length, technical stem length, number of
capsulesf plant, number of seeds/capsule, number of seeds/plant, straw yield/ plant and fiber length in the first
season and straw yield! led, seed yield/fed, oil yield/fed and oil percentage ،n the second one. Nitrogen rates
caused a significant increase in all previous studied characters in both growing seasons except stern diameter and
upper branching zone length. The effect of the interaction between row spacing and nitrogen levels on total fiber
percentage and fiber fineness was significant in both seasons. The interaction affected significantly technical
length, upper branching zone length and fiber length in the first season and number of capsules/plant, number of
seedsf plant, seed index, as well as straw, seed, fiber and oil yield/fed. in the second one.
It could be concluded that, growing flax at 25 cm between rows with 60 kg N/ fed gave the best
characters of this crop.
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