استجابة صفات النمو و الحاصل لمستويات من التسميد النتروجيني و الكثافة النباتية لأصناف من القطن الإبلند (Gossypium hirsutum L.)‎

الملخص EN

An experiment in R.C.B.D was conducted during the season 2014 at Village of Sheikh Mohammed (Badoosh Dam) to study the effect four levels of nitrogen fertilization (zero, 120, 240, 360 Kg N/ha) and three spaces between plants (20, 30, 40 cm) and three varieties from cotton (Lachata, Coker 310, Montana) on growth characters and yield and its components.

The results revealed level 240 kg N.ha-1 gave higher mean for characters number of fruiting branches, number of bolls, boll weight/plant, lint index, seed cotton yield, ginning outturn % and less flower shedding %.

While space 30 cm gave higher mean for plant height, number of fruiting branches, number of bolls, boll weight/plant, lint index, seed cotton yield, ginning outturn % and less flower shedding %.

Lachata variety gave higher mean for number of fruiting branches, number of bolls, boll weight/plant, lint index, seed cotton yield and ginning outturn % and less flower shedding %.

Interaction between level 240 kg N.ha-1 and space 30 cm gave higher mean for characters boll weight/plant and seed cotton yield, interaction between level 240 kg N.ha-1 and Lachata variety gave higher mean for character seed cotton yield, interaction between space 30 cm and Lachata variety gave higher mean for character seed cotton yield, interaction among level 240 kg N.ha-1 and space 30 cm and Lachata variety gave higher mean for characters boll weight/plant with seed cotton yield.