6796

6338

كارشناسي ارشد

زراعت

اصفهان: دانشگاه صنعتي اصفهان، دانشكده كشاورزي

1390

چهارده،76ص.: مصور، جدول

ص.ع.به فارسي و انگليسي

حسن كريم مجني

محمدرضا سبز عليان، پرويز احسان زاده

7/4/91

جمشيد رزمجو، سيروس قبادي

مهندسي كشاورزي

ID6338

به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي

Study of Allelopathic Interaction of Wild and Cultivated Safflower Seedling using Equal Compartment Agar Method Mohammad Yousefi Davood Batmanyousefi@yahoo com January 2 2012 College of Agriculture Isfahan University of Technology Isfahan 84156 83111 IranDegree M Sc Language FarsiSupervisor s H Karimmojeni E mail address Kmojeni@cc iut ac irAbstractThe development of allelopathic crop cultivars for weed suppression has beenincreasingly recognised as one of the possible components in integrated weedmanagement Allelopathic plant interactions can have either a harmful or beneficialeffect and are generally evaluated by testing some physiologic mechanisms thatresult in the inhibition stimulation of seed germination plant growth anddevelopment due to the presence of another plant Allelochemicals can be presentin several parts of plants including roots rhizomes leaves stems pollen seeds andflowers Allelochemicals are released into the environment by root exudation leaching from aboveground parts and volatilisation and or by decomposition ofplant material A laboratory bioassay study was conducted to evaluated allelopathicinteraction of wild and cultivated safflower seedlings using equal compartment agar method from september 2010 to 2011 in faculty of agriculture of IsfahanUniversity of Technology Iran In this method 400 ml glass beakers were filledwith 40 ml of 0 4 water agar and then the agar surfaced divided into two equalcompartments that were occupied separately with donor and receiver genotypes This study has been designed at four parts for screening of allelopathy effect andresponse of nine cultivated genotypes of safflower follow as Padide Goldasht Arak2811 Isfahan14 Koose Saffire Ac sunset AC sterling cultivars and C111 lineand two wild safflower genotypes including Isfahan1 and cross 12 The first andthe second experiments were done to find the best duration of exposure to exudates including 3 5 7 10 days and the best seedling densities including groups of 4 8 12 16 seedlings to maximize the allelopathy The donor species at the firstexperiment was Isfahan1 against Padide cultivar as the allelochemical receiverspecies but in the second one the donor and receiver species were Padide andIsfahan1 respectively Results have shown maximum allelopathy activity at adensity of 12 seedlings and a exposure of 5 days that was the same for the first andthe second experiments although were stimulatory and inhibitory respectively Thethird study was evaluation of allelopathy potential of cultivated safflower on thewild genotypes but the forth one was to assay cultivated safflower sensitivity under

حسن كريم مجني

محمدرضا سبز عليان، پرويز احسان زاده

جمشيد رزمجو، سيروس قبادي