Effect of nitrogen, phosphorus and weed control on growth, flowering and yield of African marigold (Tagetes erecta L.) cv. `Pusa Basanti Gainda'
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Date
2003
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MPUAT, Udaipur
Abstract
The present investigation entitled, "Effect of nitrogen, phosphorus and weed control on growth, flowering and yield of African marigold (Tagetes erecta L.) cv. Pusa Basanti Gainda" was conducted during two consecutive years i.e. 2000-2001 and 2001-2002 at the Horticulture Farm, Rajasthan College of Agriculture, Udaipur.
Two separate experiments were conducted during the course of the investigation. In the first experiment, effect of nitrogen and phosphorus on growth, flowering and yield of African marigold cv. `Pusa Basanti Gainda' was investigated, wherein five levels of nitrogen (0, 50, 100, 150 and 200 kg N/ha), three levels of phosphorus (0, 100 and 200 kg P/ha) and their combinations were evaluated. The experiment consisted of 15 treatment combinations, which were replicated fourfold and laid out in `Randomized Block Design'. The results indicated that application of 200 kg N and 200 kg P/ha recorded the maximum plant height and spread whereas, the maximum number of branches per plant and the diameter of stem were obtained at 150 kg N and 200 kg P/ha. The application of 150 kg N and 200 kg P/ha recorded earliest flowering, the maximum number of flowers per plant, diameter of flower, duration of flowering, yield of flowers per plant, per bed and per hectare. The combined effect of nitrogen and phosphorus significantly increased the diameter of stem and duration of flowering.
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* Research Scholar, Department of Horticulture, RCA, Udaipur
** Ex-Associate Professor, Department of Horticulture, RCA, Udaipur
In the second experiment effect of weed control on growth, flowering and yield of African marigold cv. `Pusa Basanti Gainda' was studied. In this experiment three levels of hoeing & weeding (unweeded, one hoeing & weeding at 30 days after transplanting and two hoeing & weeding at 30 and 60 days after transplanting) and five levels of herbicides (control, alachlor 1.0 kg and 1.5 kg/ha and pendimethalin 0.5 kg and 1.0 kg/ha) and their combinations were evaluated. The experiment consisted of 15 treatment combinations, which were replicated thrice and laid out in "Randomized Block Design". The results indicated that two hoeings & weeding and application of pendimethalin @ 1.0 kg/ha resulted in the maximum plant height, spread, number of branches per plant, diameter of stem and earliest flowering. This treatment also resulted in the maximum number of flowers per plant, diameter of flower, duration of flowering, weight of flower and yield of flowers per plant, per bed and per hectare. The combined application of hoeing & weeding and herbicides significantly improved the number of flowers per plant, diameter of flower, weight of flower and yield of flowers per plant, per bed and per hectare and also proved superior over individual application of hoeing & weeding and herbicides with regard to the various flowering and yield parameters.
Description
Effect of nitrogen, phosphorus and weed control on growth,
flowering and yield of African marigold (Tagetes erecta L.) cv.
`Pusa Basanti Gainda'
Keywords
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Citation
Acharaya and Jain, 2003