Germplasm supply, propagation and nursery management of miombo fruit trees.

Akinnifesi, Festus K.; Sileshi, Gudeta W.; Mkonda, A.; Ajayi, Olu Clifford; Mhango, Jarret; Chilanga, T.; Leakey, R. R. B.; Ajaui, O. C.; Tchoundjeu, Z.; Matakala, P.; Kwesiga, F.

doi:10.1079/9781845931100.0341

Cited by 22 publications

(18 citation statements)

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“…Indeed, top grafting produced double the number of leaves, primary branches and internodes and exhibited more main branch length and large branch diameter than budding. These results concur with those of Akinnifesi et al (2008) and Tchoundjeu et al (2010).…”

Section: Effect Of Grafting Technique On Selected Growth Parameters Isupporting

confidence: 93%

“…Budding showed no shoot in all clones compared to top grafting which recorded significant shoots during the first WAG. The lower shoot formation with the budding technique could be attributed to the low carbohydrate reserves (Akinnifesi et al, 2008; Tchoundjeu et al, 2010). During the second WAG, top grafting recorded significantly higher shoots than budding in clones C9, C14 and C16.…”

Section: Effect Of Grafting Technique On Selected Growth Parameters Imentioning

confidence: 99%

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Comparison of Grafting Techniques and their Effects on some Growth Parameters of Ten Elite Cocoa Clones (Theobroma cacao L.)

Daouda¹,

Jean-Claude²,

Jane³

et al. 2018

Afr. J. Agric. Res.

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Cocoa productivity in Côte d'Ivoire has been on a downward trend for the last decades due to many factors key among them being the non-availability of quality planting materials. However, some elite clones developed in the country are available and need to be adopted by farmers. This study was conducted in Soubré, Côte d'Ivoire to evaluate the grafting techniques (top grafting and budding) success of 10 elite cocoa clones and their effects on selected growth parameters in the nursery and field. Experimental design was a split plot with grafting technique as main factor and clones as subplot treatment replicated three times. Data were collected on shoot emergence 1 to 5 weeks after grafting (WAG) and grafting success at 10 WAG. Our results showed shoot emergence from top grafting but not on budding 1 WAG. In addition, the number of leaves was high in top grafting (11) compared to budding (5); the same trend was observed in the field. There were no significant differences between both techniques for the grafting success; meanwhile success was 77% and 68% for top grafting and budding, respectively. However, there was better vegetative growth on seedlings grafted using top grafting than budding and this technique seems to be the best to graft cocoa in the nursery.

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Section: Effect Of Grafting Technique On Selected Growth Parameters Isupporting

confidence: 93%

Section: Effect Of Grafting Technique On Selected Growth Parameters Imentioning

confidence: 99%

Comparison of Grafting Techniques and their Effects on some Growth Parameters of Ten Elite Cocoa Clones (Theobroma cacao L.)

Daouda¹,

Jean-Claude²,

Jane³

et al. 2018

Afr. J. Agric. Res.

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“…Vegetative propagation (grafting, budding and marcotting) has also been used to achieve early fruiting and tree dwarfing (Akinnifesi et al, 2008;. For example, grafted Uapaca kirkiana began to produce fruits after only 2-3 years, while those derived from seedlings took 12-15 years before fruiting (Akinnifesi et al, 2008;. Moreover, dwarfing produces trees that are smaller at harvest, thus facilitating fruit collection.…”

Section: Beyond Vegetative Propagation Of Indigenous Fruit Treesmentioning

confidence: 99%

“…According to Bhojwani and Razdan (1996), a shift from sexual to clonal reproduction allows for the faithful reproduction of individuals with superior features (traits) by eliminating the uncertainty in the transmission of favoured traits over reproductive cycles which is associated with sexual reproduction. Vegetative propagation (grafting, budding and marcotting) has also been used to achieve early fruiting and tree dwarfing (Akinnifesi et al, 2008;. For example, grafted Uapaca kirkiana began to produce fruits after only 2-3 years, while those derived from seedlings took 12-15 years before fruiting (Akinnifesi et al, 2008;.…”

Section: Beyond Vegetative Propagation Of Indigenous Fruit Treesmentioning

confidence: 99%

Beyond vegetative propagation of indigenous fruit trees: case of Dacryodes edulis (G. Don) H. J. Lam and Allanblackia floribunda Oliv.

Asaah

Tchoundjeu

Damme

2012

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Indigenous fruits/nuts of Africa's humid tropics are increasingly being recognized for their contribution to food security, health (nutrition/medicine), income generation, employment and environmental benefits. However, cultivation of the trees yielding these fruits/nuts is constrained by lack of improved planting materials that are true-to-type and have a short enough juvenile phase to fruit production. In addition, information on both above and belowground growth attributes of these species is scarce. This paper presents an overview of the results of a doctoral research focused on two African indigenous fruit tree species, i.e. Dacryodes edulis (G. Don) H. J. Lam (Burseraceae) and Allanblackia floribunda Oliv. (Clusiaceae), which are currently under domestication. For D. edulis, the objective was to assess and compare the structural and fine rooting systems together with the above ground growth attributes of fruiting trees propagated either sexually or vegetatively. The research aim for A. floribunda was to shorten the long juvenile phase before first fruiting through grafting techniques. In summary, the results from the studies on D. edulis suggest that vegetative propagation of the species, reduces the long juvenile phase to fruiting and maintains trueness in the transfer of desirable traits over generations, it also results in trees that are apparently less competitive for below ground resources, have more stable root system, and are bigger in stature and higher in carbon sinks compared to trees of seed origin. In parallel, A. floribunda was shown to be amenable to grafting both under nursery and field (in situ) conditions. Furthermore, a grafted A. floribunda tree transplanted in the field in 2007, flowered and carried a single fruit to maturity after 4 years, thereby reducing the long juvenile period to first fruit production from about 10-12 years reported in literature to less than 5 years. The findings of this doctoral research are therefore pertinent to efforts towards indigenous fruit/nut tree domestication. However, research should be confirmed as it can be considered a pilot study, one that aims to obtain insights into the effect of vegetative propagation methods on above and below ground growth and development of improved planting materials of D. edulis and A. floribunda under domestication. Simon and Leakey (2004), domestication of agroforestry trees encompasses both the socio-economic and biophysical processes involved in the identification and characterization of germplasm resources; the capture, selection and management of genetic resources; and the regeneration and sustainable cultivation of the species in managed ecosystems. The importance of domesticating and integrating these high-value fruit trees in agricultural landscapes by farmers is increasingly being recognized in Africa's humid tropics. However, in an agroforestry context, there has been scant research into the above and below ground growth attributes of intercropped trees that determine whether the association will be complementa...

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“…According to Akinnifesi et al (2008), they observed that the success of grafting for Uapaca kirkiana depends on the skill of the grafter, management practices used after grafting, and the technique used. In this study, the period of grafting and the non-compatibility of rootstock and graft could have caused the low success rate.…”

Section: Discussionmentioning

confidence: 99%

Breeding of parental and tolerant hybrids of Theobroma cacao L. to Phytophthora megakarya Bras. and Griff.

Ondobo¹,

Effa²,

Manga³

et al. 2017

Int. J. Plant Physiol. Biochem.

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The development of resistant varieties can be done according to a genetic approach. Estimation of genetic parameters for the quantitative traits of cocoa genotypes (Theobroma cacao L.) was made from a 5 × 5 diallel mating design. The objective of this study was to identify tolerant genotypes to black pod disease (BPD) through genetic analyzes. The inoculation of the leaves of parental cocoa genotypes and their offsprings with Phytophthora megakarya was performed in the nursery for two seasons (dry and rainy). Percentage success for crosses made using hand pollination was low (31.22%) and fair for grafting (60.68%). Observations made on necrosis length on the 2 nd , 4 th and 6 th days after inoculation showed increasing sensibility of the clones to BPD in the order SNK 413˂T 79/467˂T 79/501˂SNK 16˂SCA 12. 84.37 and 76.04% of hybrid genotypes exhibited positive heterosis (hybrid vigor) in dry and rainy seasons respectively. Narrow sense (h²) and broad-sense (H²) heritabilities was high in two reciprocal crosses [F30 (h²= 0.699 and H²=0.624) and F70 (h²= 0.601 and H²=0.643)].

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Germplasm supply, propagation and nursery management of miombo fruit trees.

Cited by 22 publications

References 0 publications

Comparison of Grafting Techniques and their Effects on some Growth Parameters of Ten Elite Cocoa Clones (Theobroma cacao L.)

Comparison of Grafting Techniques and their Effects on some Growth Parameters of Ten Elite Cocoa Clones (Theobroma cacao L.)

Beyond vegetative propagation of indigenous fruit trees: case of Dacryodes edulis (G. Don) H. J. Lam and Allanblackia floribunda Oliv.

Breeding of parental and tolerant hybrids of Theobroma cacao L. to Phytophthora megakarya Bras. and Griff.

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