Effect of nitrogen application on seed yield, pod and seed characteristics of okra

Abstract

Four okra cultivars (Abelmoschus esculentus [L.] Moench) were cultivated for two growing periods at nitrogen (N) application rates of 150, 300 and 450 mg N L 1 . There was no effect of N on pod size (length and diameter) or on the number of seeds per pod and seed size (mean 1000 seed weight), all these characteristics of which related to the genotype. High N application (450 mg N L 1 ), increased the seed yield of the cultivar with the lowest flower induction (Boyiatiou), but only in experiment 2. In Veloudo, seed yield was highest at 300 mg N L 1 , whereas in Pylaias and Clemson 450 mg N L 1 reduced seed yield. In all cultivars, seeds produced at an N Downloaded by [University of Missouri-Columbia] at 11:26 20 June 2016 ACCEPTED MANUSCRIPT ACCEPTED MANUSCRIPT 2 rate of 450 mg N L 1 exhibited a significantly higher percent germination N, possibly by reducing the incidence of seed hardness.

Seed Yield and Yield Contributing Traits of Okra As Influenced By Fruit Positions and Fruit Retention Loads

“…This might be due to the fact that the enhanced food materials translocated towards the site of new pod formation and development. The results are in accordance with the findings of Mohammadi et al, (2015), Moniruzzaman and Quamruzzaman (2009), Khan and Jaiswal (1988) and Grewal et al, (1972).…”

Effect of Fertilization and Bacterial Inoculation on the Growth of Alder (Alnus sibirica) in Coal Mine Soil

“…From the results of the study, it is apparently clear that supply of N sources played a significant role in the vegetative growth of alder even in degraded coal mine soil. There is evident from the previous study that N must be required for the growth and development of plant, and it can stimulate photosynthesis in plants by making more area available for photosynthesis process, and subsequently increase assimilation [6,7]. Therefore, N fertilizer and N fixation in our study showed a significant increase in the growth parameters of alder in coal mine soil.…”

“…N is one of the most important nutrients required for plant growth and development [6]. Previous studies have shown that N has a significant role in increasing the vegetative growth of plant and can also increase photosynthesis and assimilation in plants [6,7]. Regular application of nitrogenous and other nutrient fertilizers to the soil is a good approach to maintain the sustainability and healthy growth of vegetation in coal mine land [8,9].…”