Evaluation of morphological traits in cucumber (Cucumis sativus) Germplasm for their utilization in hybrid breeding

Nurfatin Liyana, Ablah and Wan Nur Suzani Sazleen, Wan Shafiin and Nur Fatihah, Hasan Nudin and Md. Amirul, Alam and Kamarul Ain, Mustafa and Nadiawati, Alias and Rohayu, Ma`Arup and Izlamira, Roslan (2021) Evaluation of morphological traits in cucumber (Cucumis sativus) Germplasm for their utilization in hybrid breeding. In: International Conference on Agriculture, Animal Sciences and Food Security, 02-03 Mac 2021, UniSZA, Terengganu.

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Abstract

Cucumber (Cucumis sativus, family Cucurbitaceae) is an essential crop globally. In hybrid breeding, performance of the parental lines is of utmost significance for effective and economic hybrid seed production. The current research aims to evaluate the performance of eight cucumber accessions collected from MARDI germplasm based on their morphological traits. A total of three qualitative and 15 quantitative traits based on the AVRDC-GRSU characterization record sheet were recorded and evaluated in five replicated plants per each accessions. Data was subjected for one-way ANOVA followed by Duncan Multiple Range Test (DMRT) as a post hoc test. Results of morphological characterization showed that the quantitative traits varied significantly. For instance, plant height varied from 65.50 to 159.00 cm, whereas fruit weight varied from 47.98 g to 200.38 g. In this study, cucumber accessions can be divided into two groups: the 'short cucumber’ which is generally referred to as mini cucumber, and the ‘long cucumber’, based on their vegetative and fruit traits. In addition, a set of potential cross-combinations that can be planned to develop highly heterotic hybrid was identified. Morphological variation found among the cucumber accessions highlighted the possibility of these plant materials to be used for their genetic improvement and breeding programs.

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