Browsing by Author "Chango Chato, Luis Fernando"

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    Aplicación de extractos vegetales de palo bobo (Nicotiana glauca), clavel chino (Tagetes patula) y mostaza (Sinapis alba) para el control de nematodos en el cultivo de tomate riñón (Lycopersicum esculentum).
    (2018) Chango Chato, Luis Fernando; Curay, Segundo
    The present research was carried out with the objective of determining the effects of plant extracts of Palo bobo (Nicotiana glauca), Chinese carnation (Tagetes patula) and mustard (Sinapis alba) for the control of nematodes in tomato kidney culture (Lycopersicum esculentum), the same that was carried out on the property of Mrs. Marlene Chato, located in the Cunchibamba parish, Pucarumi neighborhood, Ambato city, Tungurahua province. Its geographic coordinates are 01º 11 '27' 'of South latitude and 78º 61' 25 '' of West longitude, to an altitude of 2767 msnm. For the evaluation, a completely randomized block design (DBCA) was applied, in a factorial arrangement of 3 x 2 + 1 with three repetitions, and the analysis of variance (ADEVA) was carried out, according to the experimental design, the tests were carried out of significance of Tukey at 5%, to differentiate between treatments, no statistical differences were obtained but mathematical differences were obtained. The following results were obtained: for the variable number of nematodes (NM) at 85 and 170 (DDT) there was a decrease of nematodes in the treatments of MF1 (Mustard, Frequency of 20 Days) with an average of 15,33 and PbF1 (Palo bobo, Frequency of 20 days) with an average of 6,33 nematodes; in the variable number of galls per root (NAR) the best results were obtained in the treatment of ChF1 (Chinese carnation, Frequency of 20 Days) with an average of 4,29 and PbF2 (Palo bobo, Frequency of 40 days) with an average of 2,79; for the root volume variable the best results were the treatment of PbF2 (Palo bobo, Frequency of 40 days) with an average of 61,38 cm3 and MF1 (Mustard, Frequency of 20 days) with an average of 77,71 cm3 ; in the stem length variable the best treatment was PbF2 (Palo bobo, Frequency of 40 days) with an average of 120,71 cm and 239,79 cm. and for the stem diameter variable the best treatments were MF2 (Mustard, Frequency of 40 days) with average of 1,11 cm and MF1 (Mustard, Frequency of 20 days) with an average of 1,57 cm; finalizing that the best extracts for the control of nematodes were the treatments of