Determining the best statistical models for estimating the forage yield of Atriplex canescens (Purush) Nut. in Kahrizak area (Iran)

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Research Paper 01/11/2012
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Determining the best statistical models for estimating the forage yield of Atriplex canescens (Purush) Nut. in Kahrizak area (Iran)

Ali Akbar Tajali
J. Bio. Env. Sci.2( 11), 41-45, November 2012.
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Determining the grazing capacity of pastures and estimating the yield of pasture plants is one of the most essential cases in planning and managing of pastures. One of the methods for estimating the yield of pasture plants is the use of variables that are associated with the yield, and can be easily measured. In this research, the relationship between forage yield of Atriplex canescens in the pastures in Kahrizak area (Iran) with 3 factors of canopy, volume, plant height and the interaction of these three factors were studied through regression analysis. Results showed that two variables including canopy and volume have close relationship to the forage yield and the forage yield can be estimated with good precision and accuracy through these two variables but using the factor of plant height cannot give a precise estimate of the yield. The equations to estimating the forage production of Atriplex canescens in studied area are: Y= 0.331 + 0.474 X1 and Y= 0.355 + 0.325 X2.


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