Morphoanatomic characteristics of the sugarcane’s leaves under residual effect after ripeners application
DOI:
https://doi.org/10.7824/rbh.v14i4.438Keywords:
plant phytoregulators, morphology, Saccharum spp.Abstract
The aim of this study was to evaluate the residual effects regarding the maturing on morphoanatomic characteristics relating the sugarcane’s leaves. The experimental design was a randomized block in a split plot. The plots were constituted by the following varieties of sugarcane (SP80-3280 and SP80-1842) and the subplots of different maturings: Curavial 20 g bw ha-1 (sulfomethuron-methyl); Curavial 20g bw ha-1 + Roundup 0.15 L ha-1 (sulfomethuron-methyl + glyphosate); Ethrel 0.67 L ha-1 (etephon); Ethrel 0.67 L ha-1 + Roundup 0.15 L ha-1 (etephon glyphosate +); Moddus 0.80 L ha-1 (ethyl-trinexapac); MTD 1,0 L ha-1 (Compounds of organic carboxylic radicals); MTD 1.0 L ha-1 + Roundup 0.15 L ha-1 (Compounds of organic carboxylic radicals + glyphosate); Roundup 0.15 L ha-1 (glyphosate); and check without application. The following quantitative parameters of the tissues were measured: thickness of the epidermis of the adaxial face; thickness of the epidermis of the abaxial surface; thickness of the mesophyll; blade thickness; diameter of the xylem; diameter and phloem. In general, the foliar morphoanatomic characteristics of the sugarcane showed higher average values for the residual effect of Ethrel maturing (etephon). The SP80-1842 variety demonstrated the highest values for most characteristics under study.Downloads
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Published
2015-12-10
Issue
Section
Herbicide physiology and biochemistry







