Agronomic Evaluation of Four Exotic Tropical Varieties of Watermelon (Citrullus lanatus L.) in Two Agro-environments in Nigeria

Agronomic performance and adaptability of three varieties of watermelon (<i>Citrullus lanatus</i>) on sandy loam soil in derived savanna

“…Our data show that watermelon varieties studied differed in all the traits except in yield. Yield differences among watermelon varieties seem to be environment-specific (Anikwe et al, 2016). It could be that the varieties of the present study lacked the diversity needed to cause differences in fruit yield (Gusmini and Wehner, 2005), and/or that the environmental factors at Nsukka do not permit such expression of differences in yield.…”

“…This yield is encouraging when related to the yields reported from some other locations in the Derived Savanna of southeastern Nigeria. These include 12.45-13.44 t ha -1 under much closer spacing and heavier fertilization (Awere and Onyeacholem, 2014), and 7.98-13.04 and 0.00-1.75 t ha -1 reported of five varieties including Koloss under similar plant spacing and fertilization (Anikwe et al, 2016). Perhaps, the climate and soils of Nsukka offer greater prospects for the production of watermelon that is known to abhor excessive humidity.…”

“…Some exotic varieties, including one also involved in the present study, have been evaluated in southeastern Nigeria (Anikwe et al, 2016). The challenge regarding data on relative performance of varieties is, however, not yet fully tackled in the derived savanna of the region.…”

Influence of Rhizobacteria Inoculant Application Methods and Phosphate Fertilizer Rates on Dry Matter Accumulation, Yield of Bambara Groundnut [Vigna subterranea (L.) Verdc] and Soil Total Nitrogen Content in a Degraded Ultisol in Southeast Nigeria

“…soil temperature regime [19] and is classified as Typic Paleudult [20]. The pre-planting percentage organic carbon, nitrogen and available P were 0.65%, 0.038% and 7.91% cmol kg -1 respectively.…”

Responses of Bambara groundnut [Vigna subterranea (L.) Verdc.] to Phosphate Fertilizer Rates and Plant Spacing and Effects on Soil Nutrient Statues in a Degraded Tropical Ultisol Agbani Enugu South East Nigeria

“…The rainfall pattern is bimodal and is between April and October, and the dry season is between November and March. The soil's textural class is sandy loam with an isohyperthermic soil temperature regime [17] and is classified as Typic Paleudults of the order Utisol [18]. ) ( Table 1).…”