Evaluation of hail damage simulation through correlations and regression analysis between studied traits in Agria cultivar
Journal Title: International Journal of Farming and Allied Sciences - Year 2013, Vol 2, Issue 23
Abstract
In order to study the hail damage simulation through correlations between traits and analyze the causal relationships in Agria potato crop, an experiment was performed in a growing farm located at 5 km Ardabil - Khalkhal road in 2010-2011. Eight important traits were reviewed in statistical analysis of this study. Results of variance analysis showed that there were significant differences between the levels of destruction percent and time of plants aerial organs in terms of studied traits. Also, there were no significant differences between interaction destruction percent and time of plants aerial organs except for plant height, number of main stems per plant and number of tubers per plant. Simple correlation coefficients showed that there was positive and significant relationship between total tuber yields with plant height, weight of tubers per plant, the average of tuber size, dry matter percentage of tuber yield and salable tuber yield. The regression analysis was used to estimate the amount of pests in various stages of growth with the comparison of performance data. Damage to the production is far more when 50 percent of plants are spent their flowering peak stage compared with the flowering peak or flowering stage, especially, if it is damaged 100% aerial organs. The least amount of damage was when 50 percent plants had flowers and aerial organs destruction was just 25%. Specific gravity was observed only when excessive destruction and destruction operation was conducted in older stems. Also, tuber size was affected and increased the numbers of small tubers. When 50% of plants have been flowering stage, the destruction of 25% foliage affects the yield to a small extent. But the complete destruction of aerial organs in this stage or minor destruction in the next growing stage markedly decrease the tuber yield compared natural conditions.
Authors and Affiliations
Afshin Ahmadi Niyari, Davoud Hassanpanah and Ali Faramarzi
Keywords
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