Effect of temperature treatments on vegetative and productive characteristics in garlic, 'Vietnamita'clone
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Abstract
Garlic (Allium sativum L.) is an annual plant; in our country it only reproduces asexually through bulbils from the previous harvest. This facilitates the transmission of systemic diseases to offspring and causes losses in terms of yield and quality of clones. Among the management strategies is the application of thermotherapy at high temperatures using air, hot water or water vapor. The objective of this work was to use different temperature treatments on vegetative and productive characteristics in Vietnamese clone garlic. For this, “teeth” from the 2019-2020 harvest were used, subjected to different degrees of temperature in a water bath. Planting was carried out 48 hours after drying the bulbs in the open air. A randomized block design with three replications was used, the data were processed using a Simple Ranking Analysis of Variance (ANOVA) and the differences between the means were determined using the Tukey test (p≤0.05). The best treatment (40 ºC/40 min) obtained 16.83 % sprouting at 14 days after planting, 7.82 leaves/plant at 120 days and 55.3 mm equatorial diameter of the bulb. In turn, significant differences were found in the different treatments, with 50 ºC/30 min there was a greater number of leaves at 90 and 120 days after planting with 11.27 and 8.40 leaves respectively, and 1.214 kg of yield, while that, with 30 ºC/50 min, 19.36 g of fresh mass was obtained in the bulb.
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