Data/hora: 14/06/2024 03:10:03

Biblioteca(s): | Embrapa Meio Norte / UEP-Parnaíba.
Data corrente: | 13/06/1996
Data da última atualização: | 13/06/1996
Autoria: | MULONGOY, K.; CALLENS, A.; OKOGUN, J. A.
Título: | Differences in mycorrhizal infection and P uptake of sweet potato cultivars (Ipomoea batatas L.) during their early growths in three soils.
Ano de publicação: | 1988
Fonte/Imprenta: | Biology and Fertility of Soils, v.7, p.7-10, 1988.
Idioma: | Inglês
Conteúdo: | Mycorrizal infection in the roots of 10 sweet potato cultivars was assessed 7 weeks after planting in three soils collected from Ibadan, Fashola and Onne in southern Nigeria, three soils which contained 21,0 , 7,8 and 54,8mg P kg, respectively. Mycorrizal infection averaged 17% in the soil from Ibadan, 24% in the soil from Fashola and 7% in the acid from Onne. The plants grown in the Fashola soil contained the same percentage of P as plants grown in the Onne soil. Although the percentage of P in sweet potato was lowest in the Ibadan soil, shoot dry weights were 35% higher in this soil than in the other two soils. There wasno correlation between the level of mycorrizal infection and plant dryweight in the partially sterilized soil from Ibadan. Sweet potatoinnoculated in this soil with infected roots of Leucaena leucocephala showed a higher level of mycorrizal infection than uninoculated plants. Dry-matter production was, however, the same for all treatments. Thesweet potato cultivars differed in their level of mycorrizal infectionand in their response to applied P, Cultivars TIS 2498 and TIS 70357 consistently showed the lowest percentage of infection; and TIb 4, TIS 8441 and TIS 8524 showed infection levels above 20% in the Fashola and Ibadan soils...
Palavras-Chave: | Sweet doce.
Thesagro: | Batata Doce; Ipomoea Batatas.
Categoria do assunto: | --
Registro original: | Embrapa Meio Norte / UEP-Parnaíba (CPAMN-UEPP)
Exemplares: | CPAMN-UEPP - (6401-1) - ADP - SP - -- -  -  - 1991.04066 - DIS