Efeito do tratamento com calor e baixa umidade sobre características físicas e funcionais dos amidos de mandioquinha-salsa (Arracacia xanthorrhiza), de batata - doce (Ipomoea batatas) e de gengibre (Zingiber officinale).

2020 ◽

Vol 2 (2) ◽

pp. 67-73

Author(s):

Reny Dwi Riastuti ◽

Nopa Nopiyanti ◽

Yuli Febrianti

Keyword(s):

Solanum Tuberosum ◽

Ipomoea Batatas ◽

Diversity Index ◽

Zingiber Officinale ◽

Cyperus Rotundus ◽

Piper Betle ◽

Psophocarpus Tetragonolobus ◽

Solanum Torvum ◽

Mikania Micrantha ◽

Zingiber Cassumunar

The purpose of this research that has been carried out is to analyze the diversity of morphology of stem modification (caulis) in the Sub-District of East Lubuklinggau I. The technique of collecting the data that has been carried out by observation. The data obtained from the study were analyzed descriptively qualitatively and quantitatively. The results of the study have found 29 species, namely 12 species that have cirrhus, namely Pisum sativum, Psophocarpus tetragonolobus, Vigna sinensis, Ipomoea batatas, Piper betle, Cucumis sativus, Momordica charantia, Cucurbita moschata, Passiflora quadrangularis, Cylea barbata, Vitis vinifera, Mikania micrantha, 7 species that have rhizomes, namely Cyperus rotundus, Etlingera hemisphaerica, Alpinia galangal, Kaempferia galangal, Zingiber officinale, Zingiber cassumunar, and Curcuma domestica, 4 species that have geragih, namely Cyperus rotundus, Marsilea crenata, Fragaria vesca and Solanum tuberosum , 4 species that have tuber namely Ipomoea batatas, Colocasia esculenta, Cyperus rotundus, and Solanum tuberosum, 3 species that spina, namely Solanum torvum, Hylocereus costaricensis, and Mammillaria xanaea, 1 species that has a bulb namely Amaryllis fariegata temporal sangat tinggi (Servina and 1 species that has tuber namely Musa paradisiaca, and diversity index (H') is 1.284 categorized as medium diversity.

Download Full-text

Inhibitory Potentials of Trichoderma harzianum and Two Botanicals against Fungi Associated with Postharvest Rots of Ipomoea batatas (L.) Lam

International Journal of Plant & Soil Science ◽

10.9734/ijpss/2019/v28i230105 ◽

2019 ◽

pp. 1-12

Author(s):

A. A. Sobowale ◽

P. O. Owootomo ◽

C. R. Agbawodike

Keyword(s):

Growth Inhibition ◽

Trichoderma Harzianum ◽

Ipomoea Batatas ◽

Zingiber Officinale ◽

Rhizopus Stolonifer ◽

Inhibitory Effects ◽

Vernonia Amygdalina ◽

Total Inhibition ◽

Growth Inhibitory ◽

Control Growth

The mycoparasitic potentials of Trichoderma harzianum, and growth inhibitory effects of Vernonia amygdalina (bitterleaf) and Zingiber officinale (ginger) on rot fungi in Ipomoea batata were examined. Rotting tubers were collected from Agbowo, Ojoo and Bodija markets in Ibadan. They were taken to the laboratory under sterile conditions. Different concentrations of the plants’ extracts and spore suspensions of T. harzianum were prepared. The fungi isolated from the rotting tubers were later cultured on plates impregnated with different concentrations of the extracts and T. harzianum. Incubation was done at 28ºC for 14 days. Data collection was done at 24 hours interval. The fungi isolated were Aspergillus niger and Rhizopus stolonifer. T. harzianum at 1 x 10-3 had a significantly (p≤ 0.05) better pathogens’ inhibition than 1 x 10-5. Inoculation of T. harzianum before the pathogens gave total inhibition. Inhibition of A. niger was significantly (p≤ 0.05) higher than R. stolonifer. Plant extracts from ethanol gave significantly (p≤ 0.05) better pathogens’ inhibitions than that from distilled water. Extracts from both plants gave significantly (p≤ 0.05) better growth inhibition than control. Growth inhibition was significantly (p≤ 0.05) higher at absolute concentration of both extracts than other concentrations. Extract from ginger gave significantly (p≤ 0.05) better inhibition than that from bitter leaf. F-values for model (P> 0.0001) and concentrations (P> 0.0024) for the T. harzianum were highly significant. F-values for model (P> 0.0001), concentration (P>0.0001) and treatment (P>0.0001) for the plants extracts were also highly significant. The results further underscore the mycoparasitic potentials of T. harzianum as well as growth inhibitory effects of Z. officinale and V. amygdalina on fungi rot pathogens of Ipomoea batata.

Download Full-text