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Influence of Fruit Load on Seed Yield and Quality in Sweet Pepper

R. Chakma
Seed Technology Division, BARI, Gazipur

M. N. Islam
Seed Technology Division, BARI, Gazipur

M.A. Hossain
Seed Technology Division, BARI, Gazipur

A. Nessa
Seed Technology Division, BARI, Gazipur

Abstract/ Executive Summary:

A field experiment was conducted at the research farm of Seed Technology Division, BARI, Gazipur, during 2013-2014 to know the optimum number of fruit retaining on the plant for quality seed production of capsicum. Best quality seeds as well as higher yield were obtained from fruits of the plant which retained 8 fruits/plant.

Keywords: Fruit load, Seed yield quality, Retaining, Sweet pepper

Location: At the research field of Seed Technology Division, BARI, Joydebpur, Gazipur

Start Date: 00-10-2013

End Date: 00-05-2014

Program Area: Seed Technology

Commodity: Chilli

Objectives:

To know the optimum number of fruit retaining on the plant for quality seed production of capsicum.

Methodology:

The study was conducted at the research field of Seed Technology Division, BARI, Joydebpur, Gazipur during the period of October 2013 to May 2014. The experiment was carried out in a randomized complete block design (RCBD) with 4 replications. The treatments were four viz. T₁= control, T₂= 2 fruit retained, T₃=4 fruit retained, T₄= 6 fruit retained and T₅=8 fruit retained. Seeds were sown in polybag each 12.75 x 10.15 cm size and filled with potting media comprising soil. One month old seedlings were transplanted in the experimental plot. The unit plot size was 4m x 1m maintaining 50cm x 40cm plant spacing. The variety of capsicum was BARI Mistimorich-1. The fertilizer NPKSB@ 100, 70, 100, 20, 2 kg/ha was applied in the form of Urea, TSP, MOP, Gypsum and Boric Acid along with cow dung 10t/ha. Half of the quantity of cow dung was applied during land preparation. The remaining cow dung, the entire of TSP, Gypsum, Boric Acid and one third of Urea and MOP applied as basal dose. Rest of N and K were applied in two equal splits at 25 and 50 days after transplanting. Intercultural operation was done when necessary. At flowering stage first two buds in all the plants were pinched off in order to allow luxuriant vegetative growth. Thereafter, when the buds were produced, only the specified number of buds were allowed to grow for anthesis and fruit development and remaining were pinched off as and when they formed. No pinching of flowers was done in control. Data on individual fruit weight, number of seed/fruit, 1000 seed weight, and moisture content of seed, electrical conductivity, germination percentage, and vigour index were recorded in the laboratory of Seed Technology Division. Germination test was conducted using sand medium in germination room maintained at 25⁰ c and 90% RH. Final count was taken at fourteenth day and number of normal seedling counted and expressed in percentage recommended by ISTA (1996). Vigour index (vi) was computed following the method suggested by Abdul Baki and Anderson (1973). The data were analyzed statistically.

Source of Information: Annual Research Report-2012-2013, Seed Technology, BARI, Gazipur

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It was observed that there were no significant difference in case of moisture percentage, electrical conductivity (µS/cm) and germination percentage, but highest germination percentage observed in T₄treatment where six fruits were allowed to grown up.The crops, like capsicum thinning of flowers or fruits at early stage of development to retain a reasonable number of fruits is necessary. It was raveled that fruit load had a significant influence and retention of eight fruits/plant was found optimum higher yields of better quality seeds.

Knowledge Management: Report/Proceedings