Severity of Puccinia melanocephala (sydow and p. Sydow) on sugarcane (Saccharum spp.) Cultivars

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Javier Delgado Padrón
Maira Ferrer Reyes
Lázaro Pardo Mora

Abstract

The objective of the work was to evaluate the infection severity of Puccinia melanocephala (Sydow and P. Sydow) on leaves of the six most widespread sugarcane (Saccharum spp.) cultivars in the Mayabeque area, Cuba. A 48 m2 plot of each cultivar ('CP52-43', 'C86-12', 'C86-56', 'C90-469', 'C323-68' and 'C1051-73') was planted randomly distributed in the experimental block of the Mayabeque Sugarcane Research Institute. In each plot, the leaf + 1 of ten plants was randomly marked in the plant cane cultivar and in the first ratoon at three, nine, and thirteen months and three, six and nine months of age, respectively. The evaluations were carried out on these leaves each seven days, considering their position and the appearance of symptoms. The infection degrees and severity of the disease were determined using a five-grade scale, taking into account the length of the pustules. The Kruskal-Wallis test was used for the statistical processing (p≤ 0.05). The infection of the fungus in the plants began on the marked leaf when it occupied the + 1 position on the stalk. Severity of brown rust was observed to increase between 14 and 35 days after marking the leaves, but it decreased with increasing plantation age. The highest severity values were reached by the cultivars 'C323-68' and 'C90-469'.

Article Details

How to Cite
1.
Delgado Padrón J, Ferrer Reyes M, Pardo Mora L. Severity of Puccinia melanocephala (sydow and p. Sydow) on sugarcane (Saccharum spp.) Cultivars. Rev. Protección Veg. [Internet]. 2024 Dec. 29 [cited 2025 Jun. 4];39:https://cu-id.com/2247/v39e08. Available from: https://revistas.censa.edu.cu/index.php/RPV/article/view/1345
Section
ORIGINAL ARTICLES

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