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Objective: To assess the main effects of three “Species” of Cucurbitaceae and two “Status” of their seedlings, individually taken, their interactions related to three variables measured on stem, three variables measured on leaf and one variable measured on flower were tested. Methodology and Results: Cucurbita moschata, Cucurbita pepo and Lagenaria Siceraria were used as genotypes. They were planted according to a completely randomised design. Growth variables were measured on the stem, leaf and flower. The General Linear Model combining the comparison of means according to the Student NewmanKeuls test as well as the Student t or Z test with two samples at the risk threshold of 5% were applied. With regard to the first of the 3 interactions, the variations of the diameter at the collar (DC), diameter of the rod (DT) and length of the rod (LT) were independent of the variations of "Species" and "Status "authorizing the classifications of the variants of the aforementioned factors. For the second of the 3 interactions, the fluctuations in leaf length (LF), blade width (IL) and blade length (LL2) were dependent of the simultaneous fluctuations of the species and the Prohibiting Status any classification. Regarding the third interaction, the variations in the number of flowers produced (NFP) were independent of those concomitant with the Species and Status, allowing classification of the same variants of the above factors. For the first of the 3 interactions mentioned above, concerning the main effects "Species" and "Status", Lagenaria siceraria recorded both the highest diameter at the collar and the longest stem as well as a greater growth of seedlings treated with pig dejecta. . This suggests that growth in Cucurbitaceae is genotype dependent. It is also influenced by pig dejecta. Concerning the same main effects "Species" and "Status", linked to the third interaction, Cucurbita pepo and the seedlings treated with organic dejecta from pigs expressed the greatest cumulative effective number of flowers (EFFCUM). Conclusion and application of the results: Factors "Species" and "Status" can be studied simultaneously, because they do not interact on the DC, DT, LT and EFFCUM. Lagenaria siceraria grows very well relative to the first 3 variables mentioned above while Cucurbita pepo expresses a high cumulative number of flowers. Three kilograms of pig dejecta are necessary to allow good growth of the stem and diameter of Largenaria siceraria. The latter should be used for the production of aboveground biomass while Cucurbita pepo should be used for the production of fruits.

journal of applied biosciences

Response of Cucurbitaceae seedlings, Cucurbita mochata, Cucurbita pepo and Lagenaria siceraria to the fertilization by pig dejecta at Brazzaville, Congo