Early growth and survival of three miombo woodland indigenous fruit tree species under fertilizer, manure and dry-season irrigation in southern Malawi

Akinnifesi, Festus K.; Mhango, Jarret; Sileshi, Gudeta W.; Chilanga, T.

doi:10.1016/j.foreco.2007.09.025

Cited by 26 publications

(18 citation statements)

References 13 publications

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“…The harvesting, utilization and marketing of indigenous Shea fruit, nuts and butter have been central to the livelihoods of majority of rural communities throughout Africa ( [13]; [14]). The marketing of Shea butter is one of the most challenging stage in the Shea value chain [15].…”

Section: Statement Of the Research Problemmentioning

confidence: 99%

Analyzing the Structure and Performance of Shea Butter Market in Bosso and Borgu Local Government Areas of Niger State, Nigeria

Garba¹,

Sanni²,

Adebayo³

2015

IJUNESST

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Section: Statement Of the Research Problemmentioning

confidence: 99%

Analyzing the Structure and Performance of Shea Butter Market in Bosso and Borgu Local Government Areas of Niger State, Nigeria

Garba¹,

Sanni²,

Adebayo³

2015

IJUNESST

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“…Recently, Akinnifesi et al (2007) have indicated that field survival of grafted U. kirkiana declined from 98% at 12 months after establishment (MAP) to 67% at 33 MAP at Makoka regardless of management conditions. The probability of survival at this early growth period was 75% at 33 MAP ) and could be attributed to reasons other than tree management.…”

Section: Introductionmentioning

confidence: 99%

Early recognition of graft compatibility in Uapaca kirkiana Müell Arg. clones, provenances and species

2007

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Examination of callus micro-grafts in Uapaca kirkiana Müell Arg. was carried out with the objective of determining early signs of graft compatibility. Leaves from U. kirkiana, U. nitida and Jatropha curcas trees were used for callus induction. Two pieces of callus were co-cultured on Murashige and Skoog (MS) medium with different supplements. Cocultured calli were embedded in paraffin wax and dissected. The specimens were stained in safranin and fast green before viewing under a light microscope. Results showed that MS medium with 0.1 mg l −1 thidiazuron (TDZ) and 0.5 mg l −1 naphthaleneacetic acid (NAA) or 1.0 mg l −1 dichlorophenoxyacetic acid (2,4-D) and 0.5 mg l −1 NAA was effective for callus induction. There were no necrotic layers at the unions within U. kirkiana clones and provenances, but a differential growth (irregularity) between U. kirkiana and U. nitida co-cultured calli. Phenol deposits were observed at the union interfaces of U. kirkiana combinations and were high on calli derived from mature trees.Phenol deposits were absent at the union of J. curcas heterografts. Necrotic layers developed at the unions of U. kirkiana and J. curcas micro-grafts and indicating an outright graft incompatibility. Accumulation of phenol deposits at the union interfaces inhibited graft compatibility in many U. kirkiana combinations. Callus fusion technique can be used to identify partners with an outright graft incompatibility, especially for distant related plant species.

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“…Though the beneficial effect of fertilization on juveniles of tree species is questionable ( Akinnifesi et al , 2008; Ebert et al , 2002), our results revealed that in the case of S. dulcificum, all vegetative growth traits positively responded to water supply and fertilization. We observed two main morphotypes in juveniles of S. dulcificum in response to treatments.…”

Section: Discussionmentioning

confidence: 61%

Early fruiting in Synsepalum dulcificum (Schumach. & Thonn.) Daniell juveniles induced by water and inorganic nutrient management

et al. 2017

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Background. The miracle plant, Synsepalum dulcificum (Schumach. & Thonn.) Daniell is a native African orphan crop species that has recently received increased attention due to its promise as a sweetener and source of antioxidants in both the food and pharmaceutical industries. However, a major obstacle to the species’ widespread utilization is its relatively slow growth rate and prolonged juvenile period. Method. In this study, we tested twelve treatments made up of various watering regimes and exogenous nutrient application (nitrogen, phosphorus and potassium, at varying dosages) on the relative survival, growth, and reproductive development of 15-months-old S. dulcificum juveniles. Results. While the plants survived under most tested growing conditions, nitrogen application at doses higher than 1.5 g [seedling] -1 was found to be highly detrimental, reducing survival to 0%. The treatment was found to affect all growth traits, and juveniles that received a combination of nitrogen, phosphorus, and potassium (each at a rate of 1.5 g [seedling] -1), in addition to daily watering, exhibited the most vegetative growth. The simple daily provision of adequate water was found to greatly accelerate the transition to reproductive maturity in the species (from >36 months to an average of 23 months), whereas nutrient application affected the length of the reproductive phase within a season, as well as the fruiting intensity. Conclusions. This study highlights the beneficial effect of water supply and fertilization on both vegetative and reproductive growth in S. dulcificum. Water supply appeared to be the most important factor unlocking flowering in the species, while the combination of nitrogen, phosphorus and potassium at the dose of 1.5 g (for all) consistently exhibited the highest performance for all growth and yield traits. These findings will help intensify S. dulcificum’s breeding and horticultural development.

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Early growth and survival of three miombo woodland indigenous fruit tree species under fertilizer, manure and dry-season irrigation in southern Malawi

Cited by 26 publications

References 13 publications

Analyzing the Structure and Performance of Shea Butter Market in Bosso and Borgu Local Government Areas of Niger State, Nigeria

Analyzing the Structure and Performance of Shea Butter Market in Bosso and Borgu Local Government Areas of Niger State, Nigeria

Early recognition of graft compatibility in Uapaca kirkiana Müell Arg. clones, provenances and species

Early fruiting in Synsepalum dulcificum (Schumach. & Thonn.) Daniell juveniles induced by water and inorganic nutrient management

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