Abstract
Abiotic environment usually influence the physiological properties of plants, which consequently affect its growth and yield. The research aims to determine the effect of combined integrated fertilizers on the physiological and agronomic character of Aloe vera plants. The experiment was laid out in RCBD, with three replications. Treatments were factorial combinations of cow manure rate (30 and 45 t ha-1) and humic nitrogen of eight levels i.e. urea, AS, NPK fertilizer, KNO3, humic urea, humic AS, humic NPK, and humic KNO3. Observed variables include physiological and agronomic component of plants. Data were subjected to ANOVA followed by DMRT at 5% significance level. There were significant interaction effect between manure rates and nitrogen sources upon all variables measured. Highest values of stomata index and density were achieved by the combined effect of manure rate of 30 t ha-1 with urea, while manure rate of 45 t ha-1 with humic urea resulted the highest value of stomata aperture. Increase in all physiological as well as agronomical characters were achieved by manure of 30 and 45 t ha-1 with the addition of humic urea.
Highlights
Aloe vera L. is known as miracle plant, a multifunctional plant which belongs to horticulture
High values of Stomata Index was obtained by the combination 30 t ha-1 manure with urea or AS, whereas highest values of stomata aperture was obtained when 45 t ha-1 manure combined with humic urea
The result revealed that combination of manure with humic nitrogen gave lower values of stomata conductivity which was the opposite to Abbas et al (2012) work, that stomata conductivity increased by combination of manure with humic acid at the rate of 40 ml-1 per plant on kinnow mandarin
Summary
Aloe vera L. is known as miracle plant, a multifunctional plant which belongs to horticulture. The leaves contain carbohydrates, proteins, fat compounds, 17 essential amino acids, minerals, four different kinds of vitamin and six different kinds of enzyme. Aloins, lectins, lignin, saponins, tannins, phenolic and glukomannan are present in it. It plays an important functional role as an ingredient of phytotherapeutics (Nandal et al, 2012; Rajeswari et al, 2012). Aloe is a medicinally and economically important genus. Many uncommon species of aloe were endangered because of plant destruction and destroyed of natural habitat (Attia and Sodany, 2019)
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