Assessment of avocado grafting practices and propagules quality against minimum certification standards in Tanzania DOI Creative Commons

Nugwa F. Bugudole,

Emmanuely Z. Nungula, Newton Kilasi

et al.

Cogent Food & Agriculture, Journal Year: 2025, Volume and Issue: 11(1)

Published: Jan. 6, 2025

Avocado (Persea americana Mill.) is a promising cash crop in Tanzania, but reliance on poor quality, noncertified propagules hampers the market potential. The Tanzania Official Seed Certification Institute (TOSCI) has established minimum certification standards for nursery-propagated avocado plants to enhance seedling quality. This study evaluated current grafting practices and propagule quality against TOSCI across three regions: Morogoro, Mbeya, Njombe, involving 90 randomly selected growers. Recent findings indicate that 40%, 98.9%, 7.8%, 63.3%, 96.7%, 84.4% of growers adhered recommended nursery isolation distances, utilized local seeds rootstock, treated before prepared media with mixture soil organic matter, did not sterilize equipment, used healthy scions from orchards younger than seven years, respectively. Based 37.8% 64.4% participants rootstock diameter specified size polythene bags. In contrast, point heights all regions conformed standards. For pathogenic fungal 33.3% potting samples tested positive Phytophthora cinnamomi Fusarium oxysporum, These results underscore need improved education extension services foster adherence standards, ultimately enhancing production Tanzania.

Language: Английский

Assessment of avocado grafting practices and propagules quality against minimum certification standards in Tanzania DOI Creative Commons

Nugwa F. Bugudole,

Emmanuely Z. Nungula, Newton Kilasi

et al.

Cogent Food & Agriculture, Journal Year: 2025, Volume and Issue: 11(1)

Published: Jan. 6, 2025

Avocado (Persea americana Mill.) is a promising cash crop in Tanzania, but reliance on poor quality, noncertified propagules hampers the market potential. The Tanzania Official Seed Certification Institute (TOSCI) has established minimum certification standards for nursery-propagated avocado plants to enhance seedling quality. This study evaluated current grafting practices and propagule quality against TOSCI across three regions: Morogoro, Mbeya, Njombe, involving 90 randomly selected growers. Recent findings indicate that 40%, 98.9%, 7.8%, 63.3%, 96.7%, 84.4% of growers adhered recommended nursery isolation distances, utilized local seeds rootstock, treated before prepared media with mixture soil organic matter, did not sterilize equipment, used healthy scions from orchards younger than seven years, respectively. Based 37.8% 64.4% participants rootstock diameter specified size polythene bags. In contrast, point heights all regions conformed standards. For pathogenic fungal 33.3% potting samples tested positive Phytophthora cinnamomi Fusarium oxysporum, These results underscore need improved education extension services foster adherence standards, ultimately enhancing production Tanzania.

Language: Английский

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