M. H. Rashid
Senior Scientific Officer
Plant Pathology Division, RARS, Rahmatpur
A field experiment was conducted at RARS, Rahmatpur, Barisal during Rabi season of 2012-13 to evaluate the performance of chickpea genotypes/lines for searching of high yielding and BGM disease resistant variety. Sixteen entries and 2 varieties of chickpea were used following RCBD with three replications. Results revealed that all the lines statistically different among the genotypes. The genotype BD-6470, BD-6414 and BD-6481 produced highest grain yield and low disease infestation. So, these three genotypes could be considered next year for PYT.
SCREENING, CHICKPEA, BOTRYTIS GRAY MOLD
RARS, Rahmatpur
Pest Management
To find out the resistance source against BGM.
Sixteen entries were evaluated under this trial which was selected from 1st year trial in 200 lines. This nursery contains standard varieties, breeding lines and material with potential BGM resistance sources from PGRC, BARI, Gazipur, Bangladesh. The experiment was conducted following RCBD with two replications. Two check variety BARIchhola-5 and BARIchhola-9 were used. The entries were sown on 04 December, 2012 in 2.5m long single row plot allowing 50cm X 10cm spacing. Plant debris was applied in this nursery at the flowering stage and pain water was sprayed for creating humid condition at 2 hours’ interval starting from 8:00am to 2:00pm. Data on disease score was recorded three times with a 1-9 disease scoring scale where, 1= No disease and 9 = Lesions very common on all plants; stem girdling on more than 50% plants; death of most plants; damage more than 75%. Data on plant stand, plant height, BGM rating, 50% flowering, number. of branches plant-1, pods plant-1, seeds pod-1, 100 grain weight and yield were also recorded. Other intercultural operation like mulching, weeding etc. was done as and when necessary. ‘Decis’ (0.02%) was applied for controlling pod borer of chickpea.
Annual Report
The tested chickpea variety/genotypes differ significantly from one to another in respect of disease, yield and yield contributing characters under field condition. Disease pressure was very high due to application of plant debris and plain water spray. Days to 50% flowering ranged from 70.46 – 80.00 . The highest days to 50% flowering was observed in BD-6413 and lowest in BD-6520. Days to maturity ranged from 115 -119 . The highest days to maturity was observed in BD-6342 and lowest in BD-6041. Plant height ranged from 42.90-71.18 . The highest plant height was observed in BD-6514 and lowest in BD-6329. No. of branch/plant ranged from 2.47-3.47 . The highest No. of branch/plant was observed in BD-6514 and lowest in BD-6520. All the lines are statistically differed one to another. Pods plant-1 ranged from 26.40-86.10 . The highest number of pods plant-1 was observed in BD-6414 and lowest in BD-6329. Number of seeds plant-1 ranged from 1.58-2.00 . The highest number.of seeds plant -1was observed in BD-6041, BD-6520, BD-6406 and BD-6490 and lowest in BD-BARIchhola -5. The 100 seed weight ranged from 10.60-18.83 g . The highest 100 seed weight was observed in BD-6520 followed by BD-6470, BD-6481 and the lowest in BD-6490. The yield ranged from 641.30–2139.00 kg ha-1. The highest yield was observed in BD-6470 followed by BD-6414 BARIchhola-9 and BD-6481 and the lowest in BD-6505.
Report/Proceedings