Correlation Analysis Between Yield Component Traits and Yield of Watermelon Genotypes (Citrullus lanatus)

Abstract

Watermelon [Citrullus lanatus (Thunberg) Matsum & Nakai] is a plant that is widely cultivated and contains important nutritional compounds such as citrulline, arginine, and glutathione. In the last few years, the consumption of vegetables and fruits in Indonesia has tended to increase but cannot be fulfilled by domestic production. Yields are influenced by the character of yield components. This research aims to study the relationship between the character of the yield components on the yield in the watermelon. The study was arranged in augmented design and planting material are 75 watermelons genotypes and 3 checks varieties. The results showed that there are some characters of yield components that correlated with yields. The characters of yield components that have positive genetic correlation and positive phenotype correlation with fruit weight are stem length, number of branches, fruit stalk length, fruit length, fruit diameter, thickness of pericarp, number of seeds per plant, and weight of seeds per plant. The yield components characters that have a negative genetic correlation with fruit weight are day to flowering. The characters of yield components that have positive genetic and phenotype correlation with seed weight per plant are fruit weight, stem length, fruit length, fruit diameter, number of seeds per plant, seed length, and seed width. The Characters of yield components that have a negative genetic correlation with seed weight are day to flowering and the first female flower emerges. The characters of yield components that correlate with the yield are used as selection markers for indirect selection.

Genetic variability and correlation studies in various genotypes of watermelon [Citrullus lanatus (Thunb.) Mansf.]

“…TSS had a significant genotypic and phenotypic positive correlation with the days to emergence of first staminate flower, days to emergence of first pistillate flower and days taken to fruit maturity, while negatively correlated with leaf blade length, leaf blade width, internode length and petiole length. Mulyani and Waluyo (2020) also performed a correlation analysis between yield component traits and the yield of watermelon genotypes and found similar associations for one or more traits. The results of correlation analysis depicted that the traits leaf blade length, internode length, number of primary branches and number of secondary branches, vine length, days taken to fruit maturity, fruit length, fruit diameter, seediness and pericarp thickness are the major yield attributing characters.…”

Genetic analysis of yield related traits in landrace × commercial watermelon hybrids

“…For a more practical approach to yield enhancement, selection should be based on yield components. The study of inter-character interactions is crucial because it reveals which qualities can be addressed simultaneously or concurrently, with those having positive and significant links with each other being improved concurrently (Mulyani & Waluyo, 2020). The most critical challenges in plant breeding programmes are recognising the best combination of two or more parental genotypes.…”