Impact of poultry manure and harvest season on juice quality of yellow passion fruit (Passiflora edulisvar.flavicarpaDeg.) in the sub-humid zone of Nigeria

Abstract

Impact of poultry manure and harvest season on juice quality of yellow passion fruit (Passiflora edulis var. flavicarpa Deg.) in the sub-humid zone of Nigeria. Abstract-Introduction. The production of high quality fruit juice involves several cultural inputs. Among other factors, fruit quality attributes are influenced by the cultivar, the climate, the harvesting time and soil fertility. Particularly, the soil fertility has a significant effect on the nutritional characteristics of the juice. Good practice as regards fertilization consists of applying rates adapted to plant optimum growth, yield and fruit quality. Materials and methods. Effects of four poultry manure rates [(0, 5, 10 and 15) t•ha-1 ] on the juice quality of passion fruits (Passiflora edulis var. flavicarpa) were evaluated for two cropping years (2005 and 2006). The seedlings of passion fruit vine were field-established in a randomized complete block design, and the manure treatments were replicated four times. Juice quality assessment was performed on fruits picked in December 2005, coinciding with the dry season and low soil moisture recharge, and August 2006, during the wet season and high soil moisture recharge. Results. The results obtained indicated a significant poultry manure effect on all the juice quality parameters studied; the quality of the juice increased gradually as the manure rate increased. Similarly, the season of fruit-picking had a significant effect on the juice quality. As expected, vines that received no manure produced fruits with the poorest juice quality, suggesting unfavorable nutritive conditions within the vines. The concentrations of anti-nutrient factors (tannin, hydrogen cyanide, phytate and calcium oxalate) were low in ripe yellow passion fruits, and insignificant regarding health hazards for consumers of yellow passion fruit. Conclusion. The results obtained showed that the manure rate and the harvest period affected the quality of passion fruit juice. Application of 15 t•ha-1 poultry manure generally gave the best juice quality; similarly, fruits harvested in the first cropping season had better juice quality. Nigeria / Passiflora edulis / plant nutrition / organic fertilizers / fruit juices / quality Impacts du fumier de volailles et de la période de récolte sur la qualité du jus de passiflores jaunes (Passiflora edulis var. flavicarpa Deg.) en zone subhumide du Nigéria.

Poultry manure influenced growth, yield and nutritional quality of containerized aromatic pepper (Capsicum annuum L., var Nsukka Yellow)

“…In the current study, application of poultry manure increased most of the nutritional properties of the 'Nsukka Yellow' pepper. Significant effect of poultry manure rate on the nutrient quality of pepper is also supported by an earlier study on passion fruits (in the same location), which showed that nutritional quality of the juice varied with poultry manure rate (Ani and Baiyeri, 2008).…”

Effect of pig manure on growth and productivity of twenty accessions of <i>Moringa oleifera</i> in Nigeria

“…And although the plant is an efficient nutrient miner owing to its deep and extensive root system, growth and yields can be optimized by application of organic or inorganic fertilizers (Palada and Chang, 2003). Generally produce quantity and quality is enhanced with application of fertilizers (Ani and Baiyeri, 2008). Ramachandran et al (1980) achieved higher yields with organic fertilizer than growing Moringa without fertilizer.…”

Production and Quality Evaluation of Yoghurt Enriched with Two Accessions of Passion Fruits (Passiflora edulis f. flavicarpa)

“…Passion fruit has its unique properties. Yellow passion fruit consumed mainly as juice in many parts of the world, is a new crop in Nigeria [20]. It is exploited for its economic importance due to the presence of volatile compounds and a comparatively high acid content, which are responsible for its characteristic exotic flavor and aroma [21,22,23].…”

“…This study could also enhance the cultivation of passion fruit in Nigeria and provide employment. Passion fruit cropping offers a revenue earning opportunity for developing countries like Nigeria with an emerging economy [20]. Therefore, the research was aimed to produce acceptable yoghurt flavoured with two accessions of passion fruit (pulp and skin) and evaluate its quality.…”