تأثیر محلول پاشی متانول و تنش خشکی بر برخی خصوصیات فیزیولوژیکی سیب زمینی

Abstract
In order to evaluate the effect of spraying Methanol liquid on potato (type Marphona) physiological characteristics, a research is conducted in form of Split Plot based on completely random blocks with a triple frequency in the agricultural year of 2013 in a field in Nahavand. Main terraces are including normal irrigation (per 7 days) and stress irrigation (per 14 days) and stress irrigation from flowering and alternative terrace including different amounts of Methanol in level 56 (control group , 5, 10, 15, 20 percent massive) Methanol is used twice in the season of growing per 14 days and the first use of liquid was 45 days after planting. The results from variance analysis showed that in use of methanol characteristics including the amount of starch in tuber, amount of drought material in tuber are significant in the level of %1. The comparison of means for characteristics showed that I2M4 is including majority of drought material of tuber (269.74) and majority percent of starch in tuber (16.43%).