The experiment was conducted at the Agronomy Field Laboratory of Bangladesh Agricultural University, Mymensingh to study the effects of nitrogen and phosphorus on the performance of soybean. Three levels of nitrogen (0, 25 and 40 kg N ha-1) and four levels of phosphorus (0, 18, 36 and 54 kg P ha-1) were considered as treatment for the experiment. Soybean responded remarkably to the added nitrogenous and phosphatic fertilizers as the crop characters were significantly influenced by different levels of nitrogen and phosphorus. Significant effect on number of branches and seeds plant-1, plant height, number of filled pods plant-1, weight of seeds plant-1, dry weight of plant, stover weight plant-1, 1000-seed weight, seed and stover yield were obtained from the combined application of 25 kg N with 54 kg P ha-1.Res. Agric., Livest. Fish.2(1): 35-42, April 2015

A field experiment on brinjal (Solanum melongena cv of brinjal) was conducted at the research field of Regional Horticulture Research Station, Shibpur, Narsingdi during the rabi season of 2016-2017 to find out the suitable application frequency of Napthalene acetic acid (NAA) for higher and profitable yield of brinjal. Napthalene acetic acid (NAA) 40 ppm were sprayed at the different days interval after transplanting (DAT) and flowering initial stage (FIS) of brinjal. Distilled water spray (control) (T0) and five treatments of NAA applications were spraying at 15 DAT (T1), spraying at 15 DAT and at 1st FIS (T2), spraying at 15 DAT then thrice spray at 15 days interval starting from 1st FIS (T3), one spray before 7 days of first flower initiation and thrice spray at 7 days interval starting from1st flower initiation stage (T4) and one spray before 15 days of first flower initiation and thrice spray at 15 days interval starting from 1st flower initiation stage (T5). The NAA application frequencies had no significant effect on plant height, number of leaves/plant, leaf area/plant and specific leaf weight. The T2 and T4 treatments showed identical performances in respect of all parameters and T2 treatment gave maximum total dry matter/plant, long and medium styled flower percent, fruit set percent, number of fruits/plan and fruit yield per hectare.Res. Agric., Livest. Fish.5(2): 151-155, August 2018

Licensed under a Creative Commons Attribution 4.0 International License Genetic diversity of selected 21 colombo lemon (Colombo limon L.) genotypes were evaluated through multivariate analysis and also through covariance matrix to identify the promising parents for an auspicious crossing program for development of location specific high yielding genotypes. To view the endurance of significant heterogeneity, the genetic constitution of selected 21 genotypes were classified into four clusters (I, II, III & IV). Among them, the assemblage cluster II dominated the maximum number of genetic constitution, whereas assemblage cluster I possessed minimum number of genetic constitution. Surrounded by the genetic constitution, the first principal axis largely affords 47.1% of the variation. Inter genotypic gap was observed the highest (13.82) between the genetic constitution in both 'CL002' and 'CL017' genotypes, followed by genotypes 'CL002' and 'CL019' . The maximum intracluster distance was noticed (23.33) for cluster IV, whereas cluster III showed the lowest intracluster distance (10.62). In between assemblage clusters I and IV showed the highest interassemblage distance (165.64), while the lowest distance (44.84) was estimated between II and III assemblages. Considering the cluster mean bulky fruit remarked in cluster IV (256.00 g). Besides these the highest fruit yield plant -1 was also recorded in cluster IV (20.50 kg). In respect of both quantitative parameters, assemblage IV was quite diverse compare with all other assemblages. Contemplating the immensity of genetic distance and quantitative performance the genotypes 'CL002' , 'CL005' , 'CL006' and 'CL011' from cluster IV obviously pertinent for productive crossing program to promote high yielding colombo lemon genotypes.

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