The present work aims to evaluate the agronomic performances of F1 hybrids of group 1 (F1 / G1) of tomato (S. lycopersicum L.) and their parental lines grown in soil enriched with manure in open fields in Kisangani in order to contribute to the improvement of tomato productivity on the one hand and recycling of waste from pig farming (pig manure) to combat environmental pollution on the other hand. It took place from July to October 2015 in the premises of the Faculty of Sciences of the University of Kisangani. To achieve this objective, an experimental culture of a randomized block design was carried out during which observations and analyses focused on quantitative characteristics including plant size, number of flowers, number of fruits, fruit weight, number of seminal locules, fruit shape index and number of seeds in the F1 hybrids of the group (F1/G1) and their parental lines. The results obtained showed that: All F1 hybrids generally showed hybrid vigor for most quantitative traits compared to the parental populations. - Regarding plant height, it follows that the F1/G1 hybrids are taller (120.35 cm) than the parental lines (P1: 115.26 cm and P2: 88.36 cm). - Regarding flower production, the F1/G1 hybrids produced more flowers (67.7) than the parental populations (P1: 52.3 and P2: 50.5). - For fruit production, it is found that the F1/G1 hybrids set more (33.06) than the parental lines (P1: 28.63 and P2: 29.66). - It also appears that the fruits of the F1/G1 hybrids perform better in terms of average fruit weight (29.34g) than the parents (P1: 14.21g and P2: 15.33g). - It is clear that the F1/G1 hybrids produced tomato fruits with a higher average number of locules (3.46) than the male parent (3.26) and lower than the female parent (4.6). - It is observed that the fruits of the F1 hybrids are round (IF: 0.84) like the fruits of the male parent (IF: 0.91). On the other hand, the fruits of the female parent are flattened (IF: 0.73). - It is also clear that the fruits of the hybrid plants developed more total seeds (F1: 130.23) than the parents (P1: 88.86 and P2: 116.43). Statistical analysis shows that at the 5% significance level (α=0.05), for size, number of flowers, number of fruits, fruit weight, fruit width, fruit length, number of locules, number of seeds and shape index: F.pr ≤ α which means that the difference is significant between the parents and the F1/G1 hybrids.

As for the agronomic characterization of local and foreign varieties, the average plant sizes varied according to the forms and varieties. Round Violet, elongated Red, elongated Violet and flat Violet were characterized by the biggest average sizes (56.03-60.68 cm) within local varieties. Round Red genotype presented the smallest size (36.80 cm). For the foreign varieties, Makis and Opal presented bigger sizes than Marmande (44.00 cm), Roma (39.73 cm) and Carotina (38.93 cm). The number of flowers produced, was numerically very high (59.33 to 62.58 flowers) for flat Violet genotypes, round Violet, and flat Red for the local varieties, and Makis (61.33 to 61.46) and Opal (37.33 to 41.86) for foreign varieties. In this variety, Marmande (28.13), Roma (29.66) and Carotina (12.06) produced less flowers. Local varieties produced more fruits (18.26 to 32.60) than the foreign varieties (5.48 to 12.45). The fruits of the foreign varieties (25.23 g to 45.88 g) weighed more than the ones of the local varieties (9.47 g to 17.35 g).