Abstract
Two field experiments were carried out during 2018–2019 at the Hamedan and Qom sites, which are different ecological locations of Iran. Hamedan was selected as a temperate climate and Qom as semi-arid to study some of the morphological and physiological traits of fodder beet in various climatic conditions. The experimental map was designed as a split–split-plot in the form of a randomized complete block with three replications. The main plots were assigned three levels of methanol (i.e., control, 15, and 30% by volume). The sub-plots were restricted to two glycine betaine (GB) concentrations (i.e., control and four grams per liter of methanol consumed, and the sub-sub-plots consisted of six different genotypes of fodder beet). The results showed that root length, root and foliage yield/ha, as well as sugar content increased with the incremental level of methanol and/or GB concentration. Foliar application of methanol and GB also significantly changed the qualitative parameters including sodium content, catalase value, crude protein percentage, and dry matter digestibility. It should be noted that two sites differed in most of the investigated traits, so that Hamedan treatment had a more active role on fodder beet growth, yield, and quality compared with Qom. Meanwhile, there was a significant difference between fodder beet genotypes. Generally, spraying fodder beet with 15%by volume methanol or GB with concentration of four grams per liter of methanol is the recommended treatment for raising forage yield under the ecological circumstances of this research.
Highlights
Today, the world is full of tensions and the scope of these challenges has spread to plant life
Based on the results of the analysis of variance of the data, the effect of methanol spraying on root yield (p < 0.01) was significantly different
The results of this study indicated the possibility of using methanol and glycine with the aim of increasing or improving some of the quantitative and qualitative traits of different fodder beet genotypes
Summary
The world is full of tensions and the scope of these challenges has spread to plant life. Fodder beet is an example of crops that have the necessary characteristics for expansion in different climates [3] Features such as good crop production, easy planting, good food for livestock, and resistance to environmental drought [4] as well as good economic performance. Resistance to environmental stresses such as drought tolerance is one of the positive points for sugar beet, which is determined by many genes stored in the genomes of wild relatives [4] It is worthwhile selecting suitable forage beet cultivars based on forage quality, morphological traits, environmental conditions, diseases and pests of the region, planting season, and purpose of forage use [6]
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