ﺑﺮرﺳﯽ واﮐﻨﺶ ﺑﺮﺧﯽ ژﻧﻮﺗﯿﭗ ﻫﺎي ﮔﻨﺪم ﻧﺎن ﺑﻪ ﺗﺮاﮐﻢ ﺑﻮﺗﻪ در ﺷﻤﺎل ﺧﻮزﺳﺘﺎن

Reaction of bread wheat genotypes to plant densities in the north of Khuzestan

ﺑﻪ ﻣﻨﻈﻮر ﺑﺮرﺳﯽ اﺛﺮ ﺗﺮاﮐﻢ ﻫﺎي ﮔﯿﺎﻫﯽ ﻣﺨﺘﻠﻔﺒﺮ ﻋﻤﻠﮑﺮد و اﺟﺰاء داﻧﻪ در ﺑﺮﺧﯽ ژﻧﻮﺗﯿﭗ ﻫﺎي ﮔﻨﺪم ﻧﺎن در ﺷﺮاﯾﻂ ﺷﻤﺎل ﺧﻮزﺳﺘﺎن، آزﻣﺎﯾﺸﯽ در ﺳﺎل زراﻋﯽ 1393-94 آزﻣﺎﯾﺸﯽ ﺑﻪ ﺻﻮرت ﻓﺎﮐﺘﻮرﯾﻞ در ﻗﺎﻟﺐ ﻃﺮح ﺑﻠﻮك ﻫﺎي ﮐﺎﻣﻞ ﺗﺼﺎدﻓﯽ ﺑﺎ ﺳﻪ ﺗﮑﺮار اﺟﺮا ﮔﺮدﯾﺪ. ﻓﺎﮐﺘﻮرﻫﺎ ﺷﺎﻣﻞ دوژﻧﻮﺗﯿﭗ ﮔﻨﺪم ) ﭼﻤﺮان2 ، ﻻﯾﻦ اﻣﯿﺪ ﺑﺨﺶ87-20-S( ﺗﺤﺖ ﺗﺎﺛﯿﺮ ﭘﻨﺞ ﺗﺮاﮐﻢ ﮐﺎﺷﺖ) 400،300،200،100 و 500 داﻧﻪ در ﻣﺘﺮ ﻣﺮﺑﻊ( ﻣﻮرد ﻣﻄﺎﻟﻌﻪ ﻗﺮار ﮔﺮﻓﺘﻨﺪ.ﺻﻔﺎت ﻣﻮرد ﺑﺮرﺳﯽ ﺷﺎﻣﻞ ﺗﻌﺪاد داﻧﻪ در ﺳﻨﺒﻠﻪ، ﺗﻌﺪاد ﺳﻨﺒﻠﻪ در ﻣﺘﺮﻣﺮﺑﻊ، وزن ﻫﺰار داﻧﻪ و ﻋﻤﻠﮑﺮد داﻧﻪ ﺑﻮد. در ﺧﺼﻮص ﺗﺮاﮐﻢ ﺑﺬر ﺑﯿﺶ ﺗﺮﯾﻦ ﻣﯿﺰان ﻋﻤﻠﮑﺮد داﻧﻪ ﻣﺮﺑﻮط ﺑﻪ ﺗﺮاﮐﻢ 300 ﺑﺬر در ﻣﺘﺮ ﻣﺮﺑﻊ و ﮐﻢ ﺗﺮﯾﻦ ﻣﻘﺎدﯾﺮ در اﮐﺜﺮ ﺻﻔﺎت از ﺗﺮاﮐﻢ 100 ﺑﺬر در ﻣﺘﺮ ﻣﺮﺑﻊ ﺑﻪ دﺳﺖ آﻣﺪ. در ﺧﺼﻮص ﻋﻤﻠﮑﺮد داﻧﻪ، رﻗﻢ ﭼﻤﺮان2 ﺑﺎ ﻋﻤﻠﮑﺮد 6296 ﮐﯿﻠﻮﮔﺮم در ﻫﮑﺘﺎر ﺑﺎ ﻻﯾﻦ اﻣﯿﺪﺑﺨﺶ S-87-20 ﺑﺎ ﻋﻤﻠﮑﺮد 6269 ﮐﯿﻠﻮﮔﺮم در ﻫﮑﺘﺎر اﺧﺘﻼف ﻣﻌﻨﯽ داري ﻧﺪاﺷﺖ.

In order to evaluate the effect of different plant densities (seeding rates per unit area) on yield and yield components of two bread wheat genotypes, one experiment performed in the north of Khuzestan in 2014- 2015. A factorial experiment in a randomized complete blockdesign with three replications .Factors were include the twogenotypes (Chamran2 andpromising lines S-87-20), and plant densities (100, 200, 300, 400, 500 seeds per m2).The studied traits included number of grain per spike, number of spike per m2, 1000-grain weight and grain yield. Aboutseed density, the highest seed yield was obtained for the density of 300 seeds / m2 and the lowest values for most traits were obtained from 100 seed / m2. About grain yield, Chamran 2 with 6296 kg ha-1and S-87-20 line with 6269 kg ha-1 had no significant difference