Effect of colchicine on plant growth and leaf nutrient acquisition of sweet orange (Citrus sinensis (L.) Osbeck) cv. Mosambi

Abstract

The present study was conducted on sweet orange cv. Mosambi mutants, developed by treating with different doses of colchicine (0.05%, 0.10%, 0.15% and 0.20%) and raised on Jatti Khatti rootstock. Two years after the field establishment of plants, the developed mutants were examined in terms of alterations in growth parameters and leaf nutrient acquisition. Colchicine had both inhibitory and stimulatory effects on the mutants developed at different doses. Reductions in stem girth and TCSA were recorded at 0.05% and 0.20% of colchicine treatment. Mutants developed at 0.10% and 0.15% colchicine concentration, had stimulatory effect on plant growth parameters. Higher nutrient acquisition was noticed in the leaves of mutants developed at 0.10%-0.15% doses, while lower macronutrient acquisition was recorded at 0.05% and 0.20% doses. Variation induced in the mutants by colchicine indicated that both lower and higher doses of mutagenic treatments may give rise to the mutants of economic importance and indicating its potential use as a mutagen.

Impact of Integrated Nutrient Management on Growth, Yield and Quality Attributes of Sweet Orange (Citrus Sinensis L. Osbeck) CV. Phule Mosambi

“…Greater availability of dry matter for sugar conversion was also aided by microbial and organic inputs. Ghosh and Besra (2000), Kumar et al (2017) and Singh et al (2018) in sweet orange also reported findings in close agreement with the results of present study. Lower acidity in fruits may be attributed to their conversion into sugars and their derivatives via processes involving reversal of the glycolytic pathway, or it may be employed in respiration.…”

Chemosensitivity analysis of tiger nuts (Cyperus esculentus L.) using ethyl methanesulfonate (EMS) and colchicine mutagens

“…3 ). This is not surprising as mutagens such as colchicine have both stimulatory and inhibitory effects on mutants at different concentrations [ [30] , [31] , [32] ], and hence at lower concentrations such as 0.1 %, an increase in plant architectural traits was observed ( Table 2 ). Based on their means, these quantitative traits to some extent showed a steady increase with lower doses of mutagen concentrations up to a dose of 1.0 % before eventually declining ( Table 2 , Table 3 ).…”

Synergistic effect of seaweed extract and boric acid and/or calcium chloride on productivity and physico-chemical properties of Valencia orange

“…Exogenous Ca application improves photosynthesis, the accumulation of mineral elements in leaves, the growth rates of plant leaves, and significantly improves the fruit quality of some fruit trees ( Wang et al, 2022 ). Calcium and boron treatments might improve sugar components through calcium and boron’s active involvement in the photosynthesis of metabolites and rapid translocation of sugars, improving sugar metabolism and translocation of assimilates from other parts of the plants to developing fruits ( Singh et al, 2018 ). The increased TSS seen with the application of micronutrients may be attributed to the quick metabolic transformations of polysaccharides and pectin into soluble compounds and the rapid translocation of these components from leaves to the developing fruits due to improved source-sink relationships ( Tamboli et al, 2015 ).…”