Selection criteria for lowland tomatoes (Solanum lycopersicum L.)

Abstract

Development of tomato in the lowlands is a solution to increase tomato production in Indonesia. Genotype selection using an appropriate criteria can help to obtain the tomato genotypes with have high production in the lowlands. This study was aimed to determine the appropriate selection criteria for tomatoes with high production in the lowlands. This study was organized in a randomized block design with three replications. The genotype used in this study was a collection of pure line from IPB's breeding laboratory. The results showed that several characters had a significant correlation with fruit weight per plant. Determination of selection criteria based on characters that have high heritability values with a significant correlation to fruit weight per plant. The characters of fruit length, weight per fruit and plant crown width have very significant correlation values with fruit weight per plant, so these three characters can be used as selection criteria.

Combining Image-Based Phenotyping and Multivariate Analysis to Estimate Fruit Fresh Weight in Segregation Lines of Lowland Tomatoes

“…This is mainly dictated by alterations in the growing environment which favor more intense and frequent attacks by parasites and diseases, as well as increased competition phenomena with other crops [7][8][9]. Therefore, it is necessary to identify genotypes adaptable to warmer conditions, especially within global regions most expose to the effects of climate change (e.g., Tropics) [6,10,11]. In particular, the higher temperatures registered in the areas of Asian countries most suited to tomato cultivation (i.e., highlands) has stimulated interest in new varieties adaptable to the climatic conditions typical of lower altitudes [10].…”

“…Several genetic efforts have been conducted to increase tomato production and quality in the Asiatic lowlands [6,[11][12][13]. Cross-breeding programs have allowed the identification of candidate varieties to generate offspring tomato lines better adaptable to new growth conditions, as previously reported for the Mawar (M) and the Karina (K) cultivars [13,14].…”