The effect of plant densities and cutting on some morphological charactrics, seed and forage production in french honysuckle (Hedysarum coronarium L.)

In order to study The effect of plant densities and cutting on some morphological charactrics، seed and forage production in french honysuckle (Hedysarum coronarium L.)، an experiment was conducted in Gorgan Agricultural Research Station in 2001 and 2002. Experimental design was factorial within randomiz complete block with four replication. The factors included plant density in three levels (200،300،400 plant/m2) and cutting factor in three levels (without cutting، one time cutting and two times cutting). The results showed that tillers per plant، racemes per stem، loments per raceme، plant hight، dry matter and fresh forage were differet in two years and the amount of dry and fresh forage and the rate of plant height were more in the first year. But the rate of other traits were more in the second year. Also the effect of plant density on tillers per plant، racemes per stem، loments per raceme and 1000 seed weight was significant in the level of 1% and the highest amount of them was estimated in 200 plant/m2 density respectirely (3. 01، 5. 73، 10. 22 and 9. 7 gr) and the rate of plant hight and leaf /stem ratio increased when the density increased and the highest amount of them was estimated in 400 plant per /m2 density respectively (142cm، 0. 6). The rate of seed yeild per hectar was not influenced by density. Tillers per plant، racemes per stem، loments per raceme،W1000 and hulled seed yield per hectar were significant in the level of 1`% and the highest amount of them was estimated in without cutting treatment respectively (4. 15، 8. 03، 12. 54، 9. 25gr and 41 56 kg/ha) stem، fresh forage and dry forage were increased when cutting increased and the highest amount of them was estimted in two –times cutting treatment respectively (0. 605، 67. 22 ton/ha، 8. 634ton/ha). Maximum once time cutting can be recommended and second cutting devoted to seed produce in the first year.