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We attempted to determine ploidy level in the gametophyte and the sporophyte of Musa using pollen and chloroplast characteristics, respectively. In the gametophyte, interploidy differences accounted for 63.8 % of the genetic variance for pollen diameter and 87.5% for pollen stainability, the rema...


Tenkouano, A.Crouch, J.H.Crouch, H.K.Vuylsteke, D.R.[Ploidy determination in Musa germplasm using pollen and chloroplast characteristics]Ploidy determination in Musa germplasm using pollen and chloroplast characteristics
Autor: Laker, C.D.

The livestock sub-sector of the agricultural sector plays an important role in the economic and social development of Uganda. It contributes about 30 percent of agricultural Gross Domestic Product. The sub-sector is very important in Mbarara District where it is estimated that approximately one m...


Laker, C.D.[The economics of East Coast Fever Immunization in Uganda.]The economics of East Coast Fever Immunization in Uganda.

The current study was aimed at identifying mega‐environments in Ghana and evaluating adaptability of superior sweetpotato [Ipomoea batatas (L.) Lam.] genotypes from a targeted breeding effort. Three sets of genotypes were evaluated in multi‐environment trials (MET). Twelve sweetpotato varieties w...


Swanckaert, J.Akansake, D.Adofo, K.Acheremu, K.Boeken, B.R.Eyzaguirre, R.Grüneberg, W.J.Low, J.W.Campos, H.[Variance component estimations and mega‐environments for sweetpotato breeding in West Africa.]Variance component estimations and mega‐environments for sweetpotato breeding in West Africa.

The West Africa Transforming Breeding Workshop held at the International Institute of Tropical Agriculture


International Institute of Tropical Agriculture[West Africa transforming breeding workshop - Eng NG Presentation]West Africa transforming breeding workshop - Eng NG Presentation

Black sigatoka (Mycosphaerella fijiensis Morelet), an airborne fungal leaf-spot disease, is a major constraint to plantain and banana (Musa spp.) production world-wide. Gaining further knowledge of the genetics of host-plant resistance will enhance the development of resistant cultivars, which is...


Ortiz, R.Vuylsteke, D.R.[Inheritance of black sigatoka disease resistance in plantainbanana (Musa spp.) hybrids]Inheritance of black sigatoka disease resistance in plantainbanana (Musa spp.) hybrids

Few genetic markers are available in Musa spp. as a result of a lack of inheritance studies. Full-sib diploid (2n = 2x = 22) plantain-banana hybrids of the International Institute of Tropical Agriculture were selfed or outcrossed with other diploid bananas, one of which is an improved selection f...


Ortiz, R.Vuylsteke, D.R.[Inheritance of albinism in banana and plantain (Musa spp.)]Inheritance of albinism in banana and plantain (Musa spp.)

Bananas are monocots and members of the genus Musa, family Musaceae. They are the second largest fruit crop in the world with an annual production of about 65 million tons (INIBAP 1993). The export trade, involving just dessert bananas of the Cavendish subgroup, comprises only 10% of the total ba...


Panis, B.Sagi, L.Swennen, R.[Regeneration of plants from protoplasts of Musa species (banana)]Regeneration of plants from protoplasts of Musa species (banana)

A strategy to control the black sigatoka disease of plantain (Musa spp, AAB group) in Africa, targeting the incorporation of durable host plant resistance, was initiated at the International Institute of Tropical Agriculture (IITA). The commonly accepted intractability of plantain to genetic impr...


Vuylsteke, D.R.Swennen, R.[Development and performance of tetraploid hybrids of plantain (Musa spp., AAB group) with black sigatoka resistance]Development and performance of tetraploid hybrids of plantain (Musa spp., AAB group) with black sigatoka resistance

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