ارزيابي نشاءكاري پنبه در اراضي كشور

Evaluation of cotton transplanting in saline soils

This was aimed at using saline soils in an appropriate was for cotton production by transplanting using paper pots in saline soils of Varamin. The experimental design was a Randomized Complete Blocks in the form of split-split plots with three replications. The main plots were two planting dates, May 20 and June 10. Single and double row planting were used as sub-plots and sub-sub plots were the age of transplants with four levels: direct seeding, 10, 30, and 40 days old transplants. The results showed that, delaying in the planting date reduced yield, earliness, seed weight, boll and monophobia number. Double row planting (zigzag arrangement) in comparison with single row planting, produced more; yield, stand counts, boll and monophobia number and also found out more appropriate planting arrangement in saline soils. Transplanting in comparison with direct seeding had not significant effect on yield. Among yield components, stand counts was affected by transplanting and as the age of transplants increased, the former trait was decreased. Meanwhile, transplanting increased the main root branching remarkably and swallowed them. Using of cotton transplant in delay planting conditions is a suitable practice for crop earliness.