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Research Detail

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R. R. Saha
SSO
Agronomy Division, Gazipur

F. Begum
PSO
Agronomy Division, Gazipur

An experiment was conducted at the research field of Agronomy Division, BARI, Gazipur during January to June 2008 to determine the flowering and pod development pattern as well as effective flowering period for quality seed production of groundnut. Five groundnut varieties such as Dhaka 1, BARI Chinabadam 5, BARI Chinabadam 6, BARI Chinabadam 7 and BARI Chinabadam 8 were included in this study. Flowering and pod development pattern as well as dry matter accumulation pattern were found identical among Dhaka 1, BARI Chinabadam 6 and BARI Chinabadam 8. On the other hand, number of flowers and pods per plant and flowering duration were found highest in BARI Chinabadam 5 followed by BARI Chinabadam 7. Dry matter accumulation also showed the similar trend. Significant variation was found in yield and yield components. Identical pod yield was found in BARI Chinabadam 6 (2408.3 kg/ha), BARI Chinabadam 7 (2337.9 kg/ha) and Dhaka 1 (2325.4 kg/ha). The lowest yield was obtained from BARI Chinabadam 5 (745.8 kg/ha) followed by BARI Chinabadam 7. The experiment should be repeated in the next year for final confirmation.

  Flowering, Pod development pattern, Seed production, Groundnut
  Joydebpur, Gazipur
  07-01-2008
  00-06-2008
  Variety and Species
  Ground nut
  1.  To determine the flowering and pod development pattern
  2. To identify effective flowering period for quality seed production of groundnut varieties.

The experiment was conducted at the research field of Agronomy Division, BARI, Gazipur during the period from January to June 2008. Five groundnut varieties were included in this study. These varieties were Dhaka 1, BARI Chinabadam 5, BARI Chinabadam 6, BARI Chinabadam 7 and BARI Chinabadam 8. The trial was laidout in a RCB design with three replications. Seeds were treated by Vitavax 200 prior to sowing and seeds were sown on 7 January 2008 with 30 cm x 15 cm spacing. The unit plot size was 3 m x 2.4 m. Fertilizers were applied @ 12-32-43-54-2 kg/ha of NPKSB in the form of urea, triple super phosphate, muriate of potash, gypsum and boric acid as basal. Other intercultural operations such as weeding, thinning, mulching, irrigations and pesticide applications were done as per necessity. Flowering start in Dhaka 1, BARI Chinabadam 7 and BARI Chinabadam 8 on 5 March 2008 (58 DAS) and it was on 11 March 2008 (64 DAS) in BARI Chinabadam 5 and BARI Chinabadam 6. At 50% flowering stage, five plants having same day of flowering in each plot were selected and tagged for counting open flower every day which were tagged with coloured thread. Different groundnut varieties were harvested on different dates such as Dhaka 1, on 13 May (127 DAS), BARI Chinabadam 6 and BARI Chinabadam 8 on 26 May (140 DAS), BARI Chinabadam 7 on 3 June (148 DAS) and BARI Chinabadam 5 on 10 June 2008 (155 FAS). Data were collected on number of flower per plant per day, dry matter distribution in different plant parts, yield and yield components. Collected data were statistically analyzed and means were adjusted by LSD.

  Annual Report, Agronomy Division 2007-2008, BARI
  
Funding Source:
1.  Asian Development Bank Budget:  15,000/-
   15,000/-

From one year study it is revealed that flowering and pod development pattern varied among the varieties and number of flowers produced up to 30 days was found effective for pod production in all the varieties except BARI Chinabadam 5.

  Report/Proceedings
  

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