Excitation of Alfven waves and pulsar radio emission

We analyse mechanisms of the excitation of Alfven waves in pulsar magnetosp heres as a possible source of pulsar radio emission generation. We find tha t Cherenkov excitation of obliquely propagating Alfven waves is inefficient , while excitation at the anomalous cyclotron resonance by the particles fr om the primary beam and from the tail of the bulk distribution function may have a considerable growth rate. The cyclotron instability on Alfven waves occurs in the kinetic regime still not very closed to the star: r greater than or equal to 50 R-NS. We also discuss various mechanisms of conversion of Alfven waves into escaping radiation. Unfortunately, no decisive conclus ion about the effectiveness of such conversion can be made.