Fig 1.
Effect of nitrogen and mepiquat chloride application on number of monopodial branches (a), number of sympodial branches (b), total number of bolls per plant (c), plant height (d), number of nodes (e) and internodal distance (f) of cotton (pooled data of two years).
Here, MC0 = 0 g ha-1, MC30 = 30 g ha-1, MC60 = 60 g ha-1, MC90 = 90 g ha-1, MC120 = 120 g ha-1, N0 = no nitrogen and N1 = 198 kg ha-1. LSD value for number monopodial branches = 0.02, number of sympodial branches = 2.41, total number of bolls = 1.30, plant height = 3.38, number of nodes = 1.73 and internodal distance = 0.27.
Table 1.
Analysis of variance (sum of squares) for the influence of nitrogen and MC application on morphological traits of cotton (pooled data of two years).
Table 2.
Analysis of variance (sum of squares) for the influence of nitrogen and MC application on fiber quality traits (pooled data of two years).
Fig 2.
The effect of nitrogen and mepiquat chloride on micronaire fineness (a), fiber strength (b), fiber length (c), fiber uniformity (d), elongation (e) and ginning out turn (f) (pooled data of two years).
Here MC0 = 0g ha-1, MC30 = 30g ha-1, MC60 = 60 g ha-1, MC90 = 90 g ha-1, MC120 = 120 g ha-1, N0 = no nitrogen and N1 = 198 kg ha-1, LSD≤0.05 for micronaire fineness = 0.05, fiber strength = 0.03, fiber length = 0.12, fiber uniformity = 1.21, elongation = 0.04 and GOT = 0.05.
Table 3.
Analysis of variance (sum of squares) for the influence of nitrogen and MC application on physiological traits (pooled data of two years).
Fig 3.
Effect of nitrogen and mepiquat chloride on chlorophyll a (a), chlorophyll b (b), total chlorophyll (c) and nitrogen contents in leaves (d) (pooled data of two years).
Here, MC0 = 0g ha-1, MC30 = 30g ha-1, MC60 = 60 g ha-1, MC90 = 90 g ha-1, MC120 = 120 g ha-1, N0 = no nitrogen and N1 = 198 kg ha-1. LSD≤0.05 for chlorophyll a = 0.05, chlorophyll b = 0.02, chlorophyll = 0.08 and nitrogen contents in leaves = 0.08.
Table 4.
Effect of nitrogen application and mepiquat chloride on seed cotton yield, seed index and ginning out turn of cotton (pooled data of two years).
Table 5.
Effect of nitrogen application and mepiquat chloride on boll weight, lint percentage and lint yield of cotton (pooled data of two years).