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University of Malaya

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Articles 31 - 32 of 32

Full-Text Articles in Plant Biology

Early Evaluation Of Banana Cultivars For Fusarium Wilt Tolerance, Abdulkadir Aden Mohamed Jan 2001

Early Evaluation Of Banana Cultivars For Fusarium Wilt Tolerance, Abdulkadir Aden Mohamed

Student Works (2000-2009)

Field evaluation of banana plants for disease tolerance in soil infested with Fusarium oxysporum f. sp. cubense is commonly used. The process is slow as disease expression usually takes 4-5 months, while inoculum concentration, edaphic conditions, temperature and other variables that may affect disease expression are difficult to control. An alternative method of screening plantlets at the nursery stage was developed. The technique consisted of a double tray set up; a perforated inner tray containing sterilized river sand or a sand-clay mixture (4 sand : I clay) on which hardened tissue-cultured plantlets were grown, and a larger outer containment tray …


Kajian Kultur Tisu Tumbuhan Zinnia Elegans Jacq. Dan Rosa Hybrida Linn. Var. Christian Dior, Rashidi Othman Jan 2000

Kajian Kultur Tisu Tumbuhan Zinnia Elegans Jacq. Dan Rosa Hybrida Linn. Var. Christian Dior, Rashidi Othman

Student Works (2000-2009)

From the first experiment, it was found 1ha1 the primary root elongation of Z. elegans was optimum on the fifth day with a value of 40.82 ± 15.39 mm Thus, the root segment with an elongation in the range of25.43 to 56.21 mm has been adopted as the standard length for the m VI VO and m vt/fo cytological studies. In vivo cytological studies on Z. elegans revealed that the mitotic index (MI) measured was 13.47 ± 0.46%, the chromosome number observed was 2n = 23, the average cell and nuclear area values were 113.55 ± 4.44 μm1 and 40.58 …