ASSESSMENT METHOD drought-resistant varieties of soft winter wheat in the conditions of slope microzonal

摘要

1. A method of evaluating drought tolerance varieties of winter wheat in a slope microzonal comprising counting the number of stomata winter wheat at the bottom side the flag leaf of the leaf surface area of ​​1 to each SMU varieties of winter wheat to five times of repetition, the calculated stomatal factor which allows evaluate drought tolerance varieties of winter wheat in a particular phase of ontogenesis, according to the formula: K = NN × SCC × 0,01, wherein K stomatal coefficient; N - Mean number of stomata winter wheat; N- number of stomata winter wheat for a certain phase of ontogenesis; SCC - hydrothermal coefficient in a certain phase of ontogenesis; 0.01 - constant component, with the more or less stomatal coefficient deviates from zero, the more or less pronounced drought tolerance: the negative coefficients stomatal winter wheat varieties are unstable to drought, from 0 to 10 - weak-stable, from 10 to 20 - sredneustoychivymi, from 20 to 30 - vysokoustoychivymi.2. The method of claim. 1, characterized in that the count of the number of stomata winter wheat at the lower side surface of the sheet at the flag leaf area of ​​each 1 smproizvodyat varieties of winter wheat to fivefold replicates sampled at plakor, a micro-zone slopes 1-3 ° and micro-zone slopes 3-5 °.