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Articles by Norrizah Jaafar Sidik
Total Records ( 2 ) for Norrizah Jaafar Sidik
  Nurul Izzati Osman , Asmah Awal , Norrizah Jaafar Sidik and Shamsiah Abdullah
  Lycium barbarum or commonly known as goji or wolfberry is a type of Chinese medicinal herbs which has been consumed since ancient times. In the present study, the best explant and corresponding treatment for callus induction and somatic embryogenesis in this species were determined. Leaves and nodes were used as explants and cultured on different combinations and concentrations of 2,4-dichlorophenoxyacetic acid (2,4-D) and 6-benzylaminopurine (BAP) plant growth regulators. For callus induction, the optimal callus formation effects were found in the treatment of 0.3 mg L-1 2,4-D and 0.1 mg L-1 or 0.3 mg L-1 BAP in Murashige and Skoog’s (MS) media, while 0.1 mg L-1 BAP with either 0.3 mg L-1 or 0.5 mg L-1 2,4-D in MS media were the optimal treatments in nodal explant. As for somatic embryogenesis, after a series of sequential subculture on MS basal media, the treatment of 1.0 mg L-1 2,4-D and 0.1 mg L-1 BAP in MS media during callus induction phase in leaf explant were identified to be the optimum treatment to produce somatic embryos. Through this study, reliable protocols useful for L. barbarum mass propagation through callus culture and somatic embryos formation had been established and verified.
  Norrizah Jaafar Sidik , Saiyidah Nafisah Hashim , Yaseer Suhaimi Mohd and Shamsiah Abdullah
  Rockmelon is belongs to one of Cucurbitaceae family. It is widely cultivated for commercialization. In this experiment, three different rockmelon cultivars were selected to be studied. Seed morphology, plant growth yield and fruit quality of rockmelon cultivars (Glamour, Honeymoon and Champion) planted in coco peat were evaluated. Plant was irrigated through fertigation technique and grown under rain shelter. After five weeks, fruit was harvested and tested for ascorbic acid and Total Soluble Solid (TSS) content. Among all three cultivars studied, seed of rockmelon cv. Glamour measured with highest seed biomass (0.034 g). It also gave the best germination response (99%) with highest seedling height (12.14 cm) and widest leaf area (244.5 cm2). For fruit performance, cv. Honeymoon yielded fruit with highest fresh weight (2.24±0.04 kg) and widest diameter (54.86±0.586 cm). However, overall rockmelon cv. Champion remains as the best quality cultivar studied. The fruit measured with thickest mesocarp (37.23±1.60 mm) and contained with highest percentage of ascorbic acid (30.43%) and TSS (16%). As conclusion, all rockmelon cultivars tested have been successfully grown in coco peat and cv. Champion was the best cultivar to be planted as it gave the best fruit value.
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