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Effect of Sowing Date on Quality Seed Production of Sweet Pepper in Bangladesh

NU Mahmud
Soil Science Division, Bangladesh Agricultural Research Institute, Jessore, Bangladesh

R Chakma
Seed Technology Division, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh

NU Ahmed
Tuber Crop Research Sub-station, Bangladesh Agricultural Research Institute, Munshigonj, Bangladesh

MAU Zaman
Rice Farming Systems Division, Bangladesh Rice Research Institute, Gazipur, Bangladesh

A Hossain
On-Farm Research Division, Bangladesh Agricultural Research Institute, Agricultural Research Station, Alamnagar, Rangpur, Bangladesh

Abstract/ Executive Summary:

A field experiment was conducted to study the effect of sowing date on quality seed production of sweet pepper at the research farm of Seed Technology Division, Bangladesh Agricultural Research Institute, Gazipur, during 2011- 2012. The aim of this study was to find out the optimum sowing date for quality seed production of sweet pepper. The treatments were 4 four sowing dates viz. 15 October, 30 October, 15 November and 30 November. Seeds were sown in seed bed for 1^st sowing on 30 September, for 2^nd sowing on 15 October, for 3^rd sowing on 30 October and for 4^th sowing on 15 November. The experiment was laid out in randomized complete block design (RCB) with three replications. The highest individual fruit weight, 1000 seed weight was obtained from the October 15 sowing date in the year of 2011-2012 and it was significantly different from all other dates of sowing. Maximum seed yield (86.2 kg ha^-1) was recorded in 2^nd sowing date (15 October) followed by 3^rd sowing date (30 October) treatment while the lowest was found from 4^th sowing date (15 November) (30.72, kg ha^-1). Maximum seed quality as measured by moisture content, dry weight, vigour index and germination percentage were obtained at different sowing date. Maximum seed weight (mass maturity) was achieved at 1^st sowing when average seed moisture contents were 5% and 4%, respectively. For high seed quality, sweet pepper is better sowing time at 2^nd sowing time (15 October) which could be regarded as the point of physiological maturity.

Keywords: Planting time, Quality seed, Sweet pepper, Vigour index, Germination, physiology

Location: Seed Technology Division, Bangladesh Agricultural Research Institute, Gazipur

Start Date: 00-11-2011

End Date: 00-05-2012

Program Area: Crop-Soil-Water Management

Commodity: Chilli

Objectives:

To find out proper planting time/sowing date for seed production of capsicum.

Methodology:

Site description and experimental design: The study was initiated at the research field and laboratory of Seed Technology Division, Bangladesh Agricultural Research Institute, Joydebpur, Bangladesh during October 2011 to May 2012 cropping season to find out the optimum sowing date for quality seed production of sweet pepper. The experiment was carried out in a randomized complete block design (RCBD) with 3 replications. The treatments were 4 four sowing dates viz. 15 October, 30 October, 15 November and 30 November. Seeds were sown in seed bed for 1^st sowing on 30 September, for 2^nd sowing on 15 October, for 3^rd sowing on 30 October and for 4^th sowing on 15 November. The study area is located at 24°09’ N latitude and 90°41’ E longitude with 16 m above mean sea level. The soils of this region are moderately acidic, low in organic matter content. Overall, the fertility level is low to medium, but the status of K and CEC is medium in most of the places. The land was well prepared by tractor driven disc plough followed by laddering. There were four treatments viz. 15 October, 30 October, 15 November and 30 November. Seeds were sown in seed bed for 1^st sowing on 30 September, for 2^nd sowing on 15 October, for 3^rd sowing on 30 October and for 4^th sowing on 15 November.. Zinc sulphate monohydrate (ZnSO₄.H₂O) was used as a source of Zn. Urea, TSP, MOP, Gypsum and Boric acid were used as the sources of N,P,K,S and B, respectively. Crop management: One month old seedlings were transplanted in the main field 30 October, 15 November, 30 November and 15 December, 2011. The unit plot size was 4m´ 1m maintaining 50 cm´ 40 cm plant spacing. The variety of capsicum was BARI Misti Morich -1. The fertilizer NPKS @ 100- 70-100-20 kg/ha was applied in the form of urea, TSP, MOP and gypsum along with cow dung l0 t/ha, half of the quantity of cow dung was applied during land preparation. The remaining cow dung, the entire quality of TSP, gypsum and one third each of Urea and MOP was applied are basal dose. Rest of N and K were applied in two equal splits at 25 and 50 days after transplanting. Intercultural operations were done when necessary. Germination test was conducted using sand medium in germination room maintained at 25 c and 100% Relative Humidity (RH). Preventive measures were taken to control insect and diseases applying appropriate insecticides and fungicides. Data collection and statistical analysis: After maturing randomly 5 plants were harvested to record the yield and yield contributing characters of sweet pepper. Fresh fruit yield was harvested from randomly pre-selected central areas (about 9 m^-2) of each plot and converted into tons per hectare (t ha^-1). Mean data was analyzed statistically and was carried out to analysis of variance (ANOVA) using the MSTAT-C (Gomez and Gomez, 1984). Further statistical validity of the differences among treatment means was estimated using the least significant difference (LSD) comparison method.

Source of Information: Progressive Agriculture 28 (3): 216-221, 2017

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

From the result of this experiment, it may be concluded that 2^nd sowing 15 October, showed better performance in respect of average fruit weight, germination, 1000 seed weight and seed yield of capsicum. For high seed quality, sweet pepper is better sowing time at 2^nd sowing time (15 October) which could be regarded as the point of physiological maturity.

Knowledge Management: Journal