ﺑﺮرﺳﯽ ﮐﺎرآﯾﯽ ﻋﻠﻒ ﮐﺶ ﻫﺎي ﭘﯿﺶ روﯾﺸﯽ در ﮐﻨﺘﺮل ﻋﻠﻒ ﻫﺎي ﻫﺮز ﺧﺰاﻧﻪ ﻣﺮﯾﻢ ﮔﻠﯽ Salvia splendens

Evaluation of pre-emergence herbicides performance on weed control of Scarlet Sage (Salvia splendens) nursery

آزﻣﺎﯾﺶ ﻣﺰرﻋﻪ اي ﺑﻪ ﻣﻨﻈﻮر ﺑﺮرﺳﯽ ﮐﺎرآﯾﯽ ﭼﻨﺪ ﻋﻠﻒ ﮐﺶ ﭘﯿﺶ روﯾﺸﯽ در ﮐﻨﺘﺮل ﻋﻠﻒ ﻫﺎي ﻫﺮز ﺧﺰاﻧﻪ ﻣﺮﯾﻢ ﮔﻠﯽ در ﻗﺎﻟﺐ ﻃﺮح ﺑﻠﻮك ﻫﺎي ﮐﺎﻣﻞ ﺗﺼﺎدﻓﯽ ﺑﺎ ﺳﻪ ﺗﮑﺮار اﺟﺮا ﺷ.ﺪ ﺷﺎﻫﺪ ﺗﺪاﺧﻞ و ﻋﺎري از ﻋﻠﻒ ﻫﺎي ﻫﺮز، ﮐﺎرﺑﺮد ﭘﯿﺶ ﮐﺎﺷﺖ دو ﻟﯿﺘﺮ در ﻫﮑﺘﺎر ﺗﺮﯾﻔﻠﻮراﻟﯿﻦ، ﮐﺎرﺑﺮد ﭘﯿﺶ روﯾﺸﯽ دو ﻟﯿﺘﺮ در ﻫﮑﺘﺎر اﮐﺴﯽ ﻓﻠﻮرﻓﻦ و ﺳﻪ ﻟﯿﺘﺮ در ﻫﮑﺘﺎر ﭘﻨﺪي ﻣﺘﺎﻟﯿﻦ و اﮔﺰادﯾﺎزون، ﺗﯿﻤﺎرﻫﺎي آزﻣﺎﯾﺶ ﺑﻮدﻧ. ﺪ ﻣﯿﺰان وزن ﺧﺸﮏ ﮐﻞ ﻋﻠﻒ ﻫﺎي ﻫﺮز در ﺗﯿﻤﺎر ﺷﺎﻫﺪ آﻟﻮده ﺑﻪ ﻋﻠﻒﻫﺮز ﺑﺮاﺑﺮ 37/9 ﮔﺮم در ﻣﺘﺮ ﻣﺮﺑﻊ ﺑﻮد. ﻋﻠﻒ ﮐﺶ ﻫﺎي ﺗﺮﯾﻔﻠﻮراﻟﯿﻦ، ﭘﻨﺪي ﻣﺘﺎﻟﯿﻦ، اﮐﺴﯽ ﻓﻠﻮرﻓﻦ و اﮔﺰادﯾﺎزون، ﺑﺘﺮﺗﯿﺐ 60، 61، 94 و 65% وزن ﺧﺸﮏ ﮐﻞ ﻋﻠﻒ ﻫﺎي ﻫﺮز را ﻧﺴﺒﺖ ﺑﻪ ﺷﺎﻫﺪ آﻟﻮده ﺑﻪ ﻋﻠﻒ ﻫﺮز ﮐﺎﻫﺶ دادﻧ.ﺪ ﺑﯿﺸﺘﺮﯾﻦ )12/8 ﮔﺮ(م و ﮐﻤﺘﺮﯾﻦ )0/6 ﮔﺮ(م ﻣﯿﺰان وزن ﺗﺮ ﺗﮏ ﺑﻮﺗﻪ ﮔﻞ ﺳﺎﻟﻮﯾﺎ، ﺑﺘﺮﺗﯿﺐ در ﺷﺎﻫﺪ ﻋﺎري از ﻋﻠﻒﻫﺮز و اﮐﺴﯽﻓﻠﻮرﻓﻦ دﯾﺪه ﺷﺪ. ﻋﻠﻒﮐﺶﻫﺎي ﺗﺮﯾﻔﻠﻮراﻟﯿﻦ، ﭘﻨﺪي ﻣﺘﺎﻟﯿﻦ، اﮐﺴﯽﻓﻠﻮرﻓﻦ و اﮔﺰادﯾﺎزون، ﺑﺘﺮﺗﯿﺐ ﺑﺎﻋﺚ ﮐﺎﻫﺶ 77، 72، 95و 72% وزن ﺗﺮ ﺗﮏ ﺑﻮﺗﻪ اﯾﻦ ﮔﻞ را ﻧﺴﺒﺖ ﺑﻪ ﺗﯿﻤﺎر ﺷﺎﻫﺪ آﻟﻮده ﺑﻪ ﻋﻠﻒﻫﺮز ﺷﺪﻧﺪ.

An experiment was conducted to evaluate the effectiveness of some of pre-emergence herbicides on weed control of Scarlet Sage nursery in a randomized complete block design with three replications. The treatments were weed infected and weed free, pre-planting application of trifluralin (2 lit ha-1), pre-emergence application off oxyfluorfen (2 lit ha-1) and pendimethalin and oxadiazon (3 lit ha-1). Total weed dry weight at weed infected check treat was 37.9 gr m-2. Trifluoralin, pendimethalin, oxyfluorfen and oxadiazon herbicides reduced 60, 61, 94 and 65% of total weed dry weight compared to weed infected check. The highest (12.8 g) and lowest (0.6 g) fresh weight per plant were observed at weed free control and oxyfluorfen, respectively. Trifluoralin, pendimethalin, oxyfluorfen and oxadiazon herbicides reduced 77, 72, 95 and 72% fresh weight per plant of this flower than weed infected check, respectively.