FORECASTING WINTER WHEAT YIELDS AT DIFFERENT STAGES OF ONTOGENESIS
2014
Ryabchoun, N. I.
The possibility of predicting wheat yield soft winter at different stages of ontogeny. A close positive correlation between tillering, number of lateral roots in plants after the termination of the autumn growing season and grain yield. A relationship between overwintering and yield of grain, which is caused by tension stressors winter and spring-summer period. During the harsh winter yield 83,6 % defined hardiness grade. In the middle and favorable conditions for wintering years determines the amount of yield by 51,2 – 59,1%. Yield forecasting in the grain-filling phase allows you to calculate the value of the yield is close to the actual. Varying the ratio of the actual and the predicted yield was low , V = 5,75%, while the coefficient implementation forecast average grades - high (0,93 ± 0,053)
Показать больше [+] Меньше [-]