Effect of Seedling Transplantation on the14CO2 Assimilation and the Apportionment of 14C ssimilations Within the Cotton Plant Interplanted in Standing Wheat The Effects of Uniconazole Waterless Seed Dressing on Photosynthesis and 14C Assimilate Distribution in Wheat ~(14)C ASSIMILATE DISTRIBUTION AND ACCUMULATION OF HYBRID SPRING WHEAT DURING FORE\|ANTHESIS PHOTOSYNTHETIC CHARACTERISTICS AND DISTRIBUTION OF 14C\=ASSIMILATES IN THE WINTER WHEAT OF LATE GROWING PERIOD\=IN DRY LAND