T. Hasan
Horticulture Research Centre, BARI, Joydebpur, Garizpur-1701, Bangladesh
M. A. T. Masud
Horticulture Research Centre, BARI, Joydebpur, Garizpur-1701, Bangladesh
Vegetables, Bitter gourd, Gourd hybrid, Hybrid Tia
Horticulture Research Centre, BARI, Joydebpur, Garizpur-1701, Bangladesh
Crop-Soil-Water Management
The experiment consisted of four bitter gourd hybrids and a check variety Hybrid Tia. Of these, three hybrids were from Dr. Narinder Dhillon’s program of AVRDC, Thailand and two were from local sources. Local germplasm was evaluated for 5-6 generations while AVRDC’s one for three generations following crop improvement procedure. Finally, four hybrids were considered promising as open-pollinated varieties and included in this study. This trial was conducted at the experimental field of Vegetable Division, HRC, BARI during the summer season of 2017. It was established in a randomized complete block design with three replications. Seeds were sown in polybag on March 13 and seventeen days-old seedlings were transplanted in the field on March 30, 2017. The unit plot size of each replication was 1.2 x 6.0m accommodating six plants. Plant spacing was maintained 1.2x6.0m where plant to plant distance was 1.0m within the bed. The land was fertilized with cow-dung, N, P, K, S, Zn and B @5000, 76, 32, 70, 14.5, 3.6 and 1.0 kg/ha, respectively. Entire cow dung, P, S, Zn, B and 1/3rd of K were applied during pit preparation as basal dose before 10 days of transplanting. Rest of K was applied in two equal installments at 15 and 30 days after transplanting. N was applied in four equal installments at 7, 15, 30 and 45 days after transplanting. Sex pheromone trap was used for controlling fruit fly. Recommended cultural practices were followed as and when necessary.
Data was recorded on 12 different characters which were days to 1st female flower open (DFF), node order of 1st female flower open (NFF), fruits/plant, yield/plant, yield/hectare, average fruit weight (AvFWt), fruit length (FL), fruit diameter (FD), bitterness, fruit fly infestation (FtflyInfest), powdery mildew, and virus incidence. Ten randomly selected fruits involving every plant of the liens were used to record fruit characteristics per replication per genotype. Insect and disease reaction data was recorded on an individual plant basis. Virus data was recorded following Agrios (2005) once after eight weeks of transplanting. Powdery mildew disease was observed throughout the plant life. Analysis of variance (ANOVA) and mean separation of crosses were done using Tukey’s test through one-way ANOVA in MINITAB statistical software (version 17, Minitab Inc, State College, Pennsylvania, USA). Significance of crosses was performed at the level of 0.05%.
Annual Research Report 2017-2018, Horticulture Research Centre, BARI, Joydebpur, Garizpur-1701, Bangladesh
Report/Proceedings