Dr. Bimal Chandra Kundu
Senior Scientific Officer
Tuber Crops Research Centre
Bangladesh Agricultural Research Institute
Joydebpur, Gazipur-1701
Bangladesh
Dr. Biresh Kumar Goswami
Chief Scientific Officer
Tuber Crops Research Centre
Bangladesh Agricultural Research Institute
Joydebpur, Gazipur-1701
Bangladesh
And M. S. Isalm, S. Akhter, M. M. Hasan, E.H.M.S. Rahaman, M. Hossain, S. Dehaan, M.S. Kadian & M. Bonierbale
Potato,CIP, Participatory, Mother and Baby trial
RARS Jessore and farmers’ field
Variety and Species
For Mother and Baby trial evaluation, a team comprises of farmers (both male and female), extension staffs, researchers and resource person to carry out the evaluation at the time of vegetative/flowering, harvesting and post-harvest stages. The mother trial was conducted at the research field of RARS, Jessore in 2012-13 cropping season. Three Baby trials were carried out at farmers’ fields in adjacent to this station. Participatory approaches included not only farmers but also the other actors in relevant production-utilization-marketing chains. A total of 10 CIP clones namely, CIP-102 (301029.18), CIP 111 (380583.8), CIP 112 (380606.6), CIP 115 (381381.26), CIP 126 (392797.22), CIP 127 (392820.1), CIP 130 (393617.1), CIP 139 (396311.1), LB 12 (396031.119) and CIP-14 (397079.6) were selected from last year trial conducted at Dinajpur and Panchagarh included in the present M & B trial at Jessore. Two popular commercial varieties Diamant and Asterix were included in the trial as check. The Mother trial was planted on 20th November 2012 at Regional Agricultural Research Station (RARS), Jessore with three replication. Three Baby trials were planted in the farmers’ fields of Noorpur village Jessore at 20th November 2012 without replication. Fertilizers were applied @ 325-220-250-120 kg/ha of Urea, TSP, MP and Gypsum, respectively. Full amount of TSP, MP and Gypsum and 50% of urea were applied as basal and the remaining amount of urea was side dressed at 35 DAP. Weeding, fungicide spraying and other intercultural operations were done as and when necessary. The crops were haulm pulled at 90 DAP. Data on different growth and yield contributing characters were recorded and statistically analyzed. The crop was harvested on 26th February 2013. There are three stages of evaluation: 1) vegetative/flowering, 2) harvesting and 3) post-harvesting. At the time of flowering (vegetative development), selection criteria for vegetative growth are evaluated by participatory evaluation method and the farmers’ opinions about the desired and true status of the clones was carried out. At the time of harvest, the following evaluations were performed: a standard evaluation of yield, a participatory selection of the clones, and an organoleptic evaluation. After the harvest, a participatory evaluation of the characteristics for storage behavior of the clones was done. The participation of the key players in the potato chain (farmers, merchants, consumers) is encouraged. The methods to be applied in the evaluation of each phase (flowering, harvest, and post-harvest) were explained and the forms for data registration are presented. Two different types of seeds have been provided to them for segregated male or female. Six seeds were given an individual for voting. Among them three seed for first priority vote, two for second and third for one seed farmers putted for each criterion. Only three criteria they had to choose in all phases. So far the evaluation has been done for the three stages vegetative (flowering) stage, harvesting stage and the third period post-harvest. The vegetative (flowering) stage evaluation was done during January, 2013 when the potato crop was in vegetative stage. Harvesting stage with organoleptic taste evaluation was done during February/March, 2013 and post harvesting stage evaluation of potato clones was carried out in May/June, 2013. An organoleptic evaluation was performed with 2 panels. Each panel consists of 10 women and 10 men. One kilogram of potatoes from each clone/variety was boiled, separating the clones with nets and placing a registration number. Using simple words, the meaning of the three evaluation criteria were explained: a. Appearance. The appearance refers to the visual aspect: how the boiled potatoes from each clone look when presented on plates. b. Taste. The taste is a very personal criterion and refers to the taste that the panelists experience at the moment of savoring the potatoes from each clone / variety. c. Texture. The Texture refers to the dry matter that the potatoes possess (a. mealy = floury, b. intermediate, c. soggy = watery). The basic rules of the evaluation were explained to the members of the panels. Each clone/variety boiled was placed on a dish and clearly identified by a number. Each panelist was given an Evaluation Form which was used to record the evaluation in reference to the appearance, taste and texture of each clone/variety. Each panelist evaluated clone by clone and washed his / her mouth with mineral water before moving on to the next sample. The previous steps have also been repeated with the panels at the baby trial locations in order to capture the opinion of a different type of consumer.
TCRC Annual Report 2012-13
100000/-
Report/Proceedings