The study was conducted to evaluate the total carbon stocks sequestered in a Jatropha – based alley cropping system treated with varying fertilizer applications. The study was laid out in Randomized Complete Block Design with three replications. The alley was planted with corn in two seasons Treatments include control (no fertilizer), organic fertilizer and inorganic fertilizer applied to the alley crops. Findings showed that the treatments with fertilizer applications had higher carbon stock in the jatropha hedges. The carbon content of the corn stover was also higher in organic and inorganic fertilizer-applied treatments. However, highest soil carbon content was shown in treatments applied with organic fertilizer (4.28 Ton ha-1). The inorganic fertilizer treatment had the lowest soil carbon content with a mean of 4.28 Ton ha-1. In terms of total carbon stock of the entire jatropha-based alley cropping system, there was a significant difference among treatments with organic fertilizer application having the highest mean of 7.79 Ton ha-1 while the inorganic treated plots had 6.53 Ton ha-1. The no fertilizer treatment had the least carbon stocks with 6.53 Ton ha-1. This recent study revealed that the jatropha-based alley cropping system is a potential land-use for carbon sequestration. This farming system needs to be promoted in upland areas to function not only as soil and water conservation measures but also as a possible remedy for global warming.
Embryogenic suspension cultures of Date palm (Phoenix dactylifera L.) allow mass propagation of somatic embryos; Partial desiccation (0, 1, 2, 3 and 4 hours) and low temperature (0°C for 2 hr, 0°C for 4 hr, 4°C for 24 hr and 4°C for 48 hr) treatments were applied to improve germination of somatic embryos in vitro of date palm cultivar Berhi with or without AC. The highest germination percentage was achieved when embryos were desiccated for three hours as well as treatment of low temperature in 4°C for 24 hr. Also, the results proved that found activated charcoal) AC) in liquid media produced the highest somatic embryos number and weight and improving percentage of germination. Further, Partial desiccation and low temperature increased embryos proline content. The improvement of the germination of somatic embryos via low temperature and especially via partial desiccation embryos somatic is successful can be used for the purpose of commercial propagation especially for Berhi cultivar.
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