Agronomic performance of peanut cultivars at different sowing times in the conditions of Sorriso-MT
DOI:
https://doi.org/10.17648/sas.v1i2.41Keywords:
Arachis hypogaea L., Seasons, Productivity, Peanuts in Mato GrossoAbstract
Growers from Mato Grosso have shown interest in the cultivation of peanuts, but the information generated by the research is still insufficient about seasons and cultivars. The objective of this study is to determine the best sowing time for 5 peanut cultivars under the conditions of Sorriso-MT. The experiment was conducted in an experimental area of "‹"‹the Federal Institute of Education, Science and Technology - IFMT Campus Sorriso, located in the city of Sorriso-MT. The experimental design used was in randomized blocks, each treatment with 3 repetitions, in a 5 x 5 factorial scheme, with 5 sowing times (11/07/2019, 11/28/2019, 12/19/2019, 9/1 / 2020 and 01/30/2020) and 5 peanut cultivars (BRS 421 OL, BRS 423 OL, BRS 425 OL, developed by Embrapa's Peanut Breeding Program and the cultivars EC 98 AO and Granoleico developed by Criadero El Carmen from Argentina The plots were composed by 4 lines of 4 meters in length and spacing of 0.90 m At 135 days after emergence, plants from the useful area were collected to determine the peanut yield in pods and the mass of 100 grains. experimental conditions in which this research was developed, it can be concluded that the cultivar BRS 425 OL and Granoleico had the highest yields at the time of november 7, while EC 98 AO was more productive on January 30 compared to the other seasons. The cultivars BRS 421 OL and BRS 423 OL did not obtain significant difference in productivity in different sowing times, presenting similar results in all sowing times, demonstrating possible adaptation to different seasons. Therefore, it is not yet possible to define the best sowing time for the region, requiring at least another year of evaluation. The cultivar BRS 421 OL presented the largest mass of 100 grains in all the sowing seasons in which it is present, in comparison to the other cultivars. Sowing in the first season (november 7), promoted the largest mass of 100 grains in cultivars BRS 423 OL and BRS 425 OL. The cultivar EC 98 AO obtained the highest masses when sown on November 7th and January 30th. The cultivar Granoleico showed no significant difference in terms of the mass of 100 grains at different sowing times.
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