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Physiological Analysis of Growth and Yield of Potato in Relation to Planting Date

Farida Begum
Chief Scientific Officer
Plant physiology Division, BARI, Joydebpur, Gazipur

B.C. Kundu,
Tuber Crops Research Centre, BAFR, Joydebpur, Gazipur

Abstract/ Executive Summary:

A field experiment was conducted to study the effect of planting date on growth and yield of potato during the Cropping season of 2010-2011 at Joydebpur, Gazipur. Planting date had a significant effect on plant height, crop growth and yield. Higher LAI (Leaf Area Index) was observed in case of optimum sowing date (15 Nov.) which resulted in higher TDM (Total Dry Matter) production and ultimately gave higher yield. Delayed planting reduced crop duration, lower LAI, lower TDM and had the adverse effect on tuber yield. No significant variation was observed in tuber yield due to interaction effect of variety and planting date.

Keywords: Physiology, Growth, Yield, Potato, Planting Date

Location: Joydebpur, Gazipur

Start Date: 01-11-2010

End Date: 31-01-2011

Program Area: Crop-Soil-Water Management

Commodity: Potato

Objectives:

To analyze the growth and yield in relation to planting date.

Methodology:

The field experiment was carried out in TCRC, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur during cropping season of 2010-2011. The cultivars Asterix and Diamant were included in this study. A randomized complete block design was used with three replications. The unit plot size was 3.0m X 4.2 m. The spacing was 60cm X 25cm. giving a population of 12 plants per line. Fertilizer NPKS was applied as per recommendation of TCRC ( Urea- 350, MP-220, TSP- 250, Gypsum 120 kg/ha and cow dung 10 t/ha).Urea was given in split application with 1/2 N as basal dose and 1/2 at the time of earthing up. The treatments consisted of four dates of planting viz-01 Nov., 15 Nov, 01 Dec. and 15 Dec. of 2010. Three plants from each replication were harvested randomly at 15 days interval. Different parts of the plant were separated and dried in an oven at 80 0C and the dry weighs were taken. Leaf area, NAR, CGR, RGR and chlorophyll contents were measured. Yield and yield components were also recorded.

Source of Information: TCRC Annual Report-2010-11,BARI

Article Link (Online Journal):

Funding Source:

1. Government

Budget: 30,000/=

Total Budget (Tk.) : 30,000/=

Achievement/Findings:

Planting date had a significant effect on plant height, crop growth and yield. Higher LAI (Leaf Area Index) was observed in case of optimum sowing date (15 Nov.) which resulted in higher TDM (Total Dry Matter) production and ultimately gave higher yield. Delayed planting reduced crop duration, lower LAI, lower TDM and had the adverse effect on tuber yield. No significant variation was observed in tuber yield due to interaction effect of variety and planting date.

Knowledge Management: Report/Proceedings