Amount damage of Lesser grain borer on Viability and physical characteristics of seed whatw varietis in laboratory candition in Golestan

Subject Areas : Plant Protection

Kabir Eyidozehi ¹ , Sultan Ravan ² , Abbas Khani ³ , Soleiman Khormali ⁴

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Received: 2014-04-08 Accepted : 2014-12-07 Published : 2014-08-23

Keywords:

Abstract :

Lesser grain boror Rhizoperta dominica in widly distributed in the world wide. Its caused damage to stored product pests, specially on wheat. Damage of this pests, terminating to decrease seed weight and Viability The averege of damage and feeding rate of above pest was studied with eight lines and cultivar such as: Kouhdasht, Zagros, Morvarid, Darya, Pastor, Line 17 and N-80-19. Experiment was down as randomly complete black design with explications in laboratory canditions. A hundred grams of wheat plased in a crystal container and with 10 adult ware put on each container and them, bottle door will cover with net. seed weight, Viability Pure varietis in two stage, before pests at end to meas used expsmate. Analysis of variances has been shown  all characteristics of  wheat varietis todamege and feeding of Lesser grain boror wese not signiticant differences. comparison average of varieties of wheat Viability and seed weight before experimant, has not shown signiticant differences, but effect to feeding and damege of Lesser grain boror to Viability and wheat varietis has been decrease of except Morvarid variety. Morvarid variety least decrease Viability (10.34). and decrease un purity of seed (12.84) and less percantage decrease seed weight (13.07). Morvarid variety with weight of hectoliters (66.50). Darya variety with more percentage decrease weight (21.97) and more percentage decrease un purity was (21.94),but with more weight Hectoliter (67.32) after experimant and more percantage of decrease of Viability (27.33) belong to pastoor variety. These bore, feeding and damage of  Lesser grain boror ,these was lesse effect on Viability and physical characteristics ofMorvarid seed variety and resistance (possible used that in programm of IPM) Darya varietys and Pastor was more effect feeding  of  pests, and it was  mor on resistance variety in between other varietys  has been investigcated.

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