اثرات فاصله رديف و تراكم بوته بر روي صفات كيفي گندم ، لاين اميدبخش

The effects of row spacing and plant densities on protein content and other qualitative characters of promising wheat line (M-75-14)

Both agronomic practices and genetic controls affect wheat grain qualities. In order to study the effects of row spacing and plant densities on protein content and other qualitative traits of bread wheat cultivar (M-75-10), an experiment was conducted in the Field of Seed and Plant Improvement Institute in Karaj region in cropping season of the year 1999-2000. Three row spacings (12.5, 15.6 and 18.7 cm) and seven plant densities (310, 320, 330, 340, 350, 360 and 370 plant/m2) were randomized to the vertical and horizontal plots respectively. Result showed that row spacing had not significant effect on increasing protein content and other qualitative traits. Also there is low correlation between qualitative traits and row spacing. Protein content, SDS, zeleni number and wet gluten firstly increased with increasing density and then decreased, whereas by increasing density, water absorption percent and gluten index decreased and seed hardness increased. Significant positive correlation occurred between dry gluten with zeleni number and protein percent. The optimum plant density for increasing the most qualitative traits was 340 plants/m^2.