تجزیه علیت صفات زراعی و عملکرد دانه گندم نان تحت شرایط دیم

To evaluate the correlation and relationships of some morphological traits with yield and its components in bread wheat under rained farming condition, an experiment was conducted in a complete randomized block design with 3 replications .Seeds value were 250, 300, 350 and 400 seeds per m2 and rows spacing were 12, 17 and 25 cm. Grain yield, plant high, fertile tillers, spike length, days until spike observation and spikes per m2 measured. Results showed characteristics like grain yield, plant height, spike length, number of the days until spikes, and spikes in m2 were measured. Analysis of variance revealed that all characters were different significantly in row spacing and seeds value. Path analysis results also revealed that the spikes in m2 had the maximum positive effect (0.979), days until spike (0.962) and spike length (0.864) on the grain yield. Study of results showed the best row spacing is 17 cm and seeds value is 350 seed per m2.