Browsing by Author "Tigse Quezada, Wendy Maribel"

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    “Evaluación de la tolerancia a la sequía en 18 variedades de trigo (Triticum aestivum L.) liberadas del INIAP bajo condiciones de invernadero”
    (Ecuador : Latacunga : Universidad Técnica de Cotopaxi (UTC), 2024-08) Tigse Quezada, Wendy Maribel; Chasi Vizuete, Wilman Paolo; Garofalo Sosa, Javier Alberto
    Wheat (Triticum aestivum L.) is a very important cereal worldwide due to its human and animal consumption. In Ecuador, wheat is relevant for the food security of those who produce it. However, climate change has made drought a very limiting factor to continue producing this cereal. The objective of this research was to evaluate the drought tolerance of 18 varieties of wheat (Trititcum aestivum L.) released from INIAP under greenhouse conditions. To comply with it, 36 treatments were implemented, arranged in a divided plot design with 108 experimental units which were subjected to two states of soil humidity, the first field capacity (Cc) 100% Humidity and the second water deficit with 10 % humidity The variables evaluated were: Vigor, growth habit, days to heading, plant height, number of tillers, spike length, spike weight, dry matter weight, type of grain and yield loss, these data They were statistically analyzed with the Infostat software for discrimination, the Tukey significance test at 5% and the Fisher test were used. From the data obtained, it was determined that the variety that best tolerated water deficit was INIAP – MIRADOR 2010 with a percentage of yield loss of 70.9% compared to the yield obtained in this variety with the Field Capacity (Cc) status. followed by INIAP-AMAZONAS 69, INIAP – IMBABURA 2014 and INIAP – ZHALAO 2003 with a percentage of 87.2% in the three varieties. The varieties with the best tolerance to drought according to their behavior in the variables: Vigor, growth habit, plant height, spike weight and number of grains were the variety INIAP - AMAZONAS 69 and the variety INIAP - ROMERO 73. Although these two have the type of medium grain, from all this it is established that the varieties evaluated are affected by drought, presenting levels of tolerance that allow further research for the varieties with the best results.