Study of stability of many genotypes of rosella under the influence of humic acids in two location

Abstract

A field experiment was conducted in two locations, the first in Al-Mahaweel district (25 km north of Babil Governorate) and the second in Al-Saniyah district (15 km north of Al-Qadisiyah governorate) during the summer season 2021 with the aim of knowing the A field experiment was conducted in two locations, the first in Al-Mahaweel district (25 km north of Babil Governorate) and the second in Al-Saniyah district (15 km north of Al-Qadisiyah governorate) during the summer season 2021 with the aim of knowing the extent of the stability of genotypes of Gujarat under the influence of ground addition and foliar spraying of Humic. A factorial experiment was applied according to Randomized Complete Blocks Design (R.C.B.D). The study included three factors, the first factor included three genotypes of Rosella (red, white and lined) and the second factor was the addition of humic acid spraying at three levels (0, 5, 10) ml. L-1 And the third factor was the addition of ground humic acid in three concentrations (0, 5, 10) ml. L-1. It was divided into 18 environments (each site included 9 environments). The following characteristics were studied (total yield of sepals, number of nuts. plant-1, Number of seeds. nut-1, dry weight of sepals gm. plant-1, yield of seeds g. plant-1, weight of 1000 seeds) The results of the aggregate statistical analysis and genetic stability analysis showed that the mean of the squares of the genotypes (G) was significantly higher than the probability level (1%). For most of the traits under study, except for the number of seeds, nut-1, the results were not significant, and the regression coefficient was greater than the correct one for the planned genotype and for all traits, and this indicates that the planned cultivar responds to good environmental conditions.