This research was conducted to overcome the problem of slow and erratic emergence in okra and to find out the effects of priming on germination, growth performance and yield in okra at Research Field of Nepal Polytechnic Institute (NPI) Bharatpur-11, Chitwan, Nepal (April-July, 2019). Arka Anamika variety was used for experiment. The experiment was laid out in Randomize Complete Block Design with 5 treatments and 4 replications, i.e. T1 (hormonal priming with IBA), T2 (hydro priming with fresh tap water), T3 (halo priming with NaCl), T4 (chemo priming with liquid urea) and T5 (un-primed seeds). Field experiment results showed that priming proved effective in improving germination percent except the chemo priming, reducing the mean germination time (MGT), improving the growth parameters (plant height, number of branches, plant canopy and number of leaves) and improving yield contributing characters like fruit length, fruit diameter as compared to un-primed seeds. The highest and lowest germination percentages were found in hydro priming and hormonal priming respectively while better growth performance in hormonal and chemo priming. Similarly, hormonal and hydro priming resulted in higher yield. Hence, it is suggested that seed priming is important to improve the overall germination, growth performance and yield in okra.

Two experiments were conducted in the Savelugu-Nanton Municipality of the Northern Region of Ghana in 2012 and 2013 to assess the effect of N fertilizer on growth, N remobilization and grain yield of three local varieties of soybean (Glycine max [L] Merill). The experiments were a 3 x 4 factorial laid in Randomized Complete Block Design (RCBD) with four replications. Factor A was soybean varieties (Jenguma, Quarshie, Ahotor); Factor B was 0, 15, 30 and 45 kg N ha-1. The experimental fields were planted manually on the flat by drilling and later thinned to 2 plants hill-1 at 0.50 m × 0.10 m with a population of about 400 000 plants ha-1. Growth and yield parameters measured were plant height, nodule number plant-1, nodule dry weight plant-1, percent nodule effectiveness, number of pods plant-1, number of seeds pod-1, 100 seed weight, harvest index and grain yield. The results showed that the control recorded lower figures in all growth parameters. Nitrogen remobilization was also observed in all plots, which indicate that soybean needs greater levels of N during grain filling. Again, N remobilization and soybean yield were highest in the 45 kg N ha-1 treatment compared to the other treatments. However, considering the overall yields, farmers in the study area should be advised to adopt starter N fertilization of soybean for higher yields as the soils are highly degraded in soil fertility.