Efficiency of fungicides; Teldor 50%SC, Nowton 50% SC, Toledo 43% EC, Kenzo 50% WG and Suntop El-nasr 70% WP against tomato gray mold disease was conducted In vitro tests. The sensitivity of Botrytis cinerea isolates to tested fungicides differed significantly according to their aggressiveness. The lowest pathogenicity isolate BcI-3 ranked as the most susceptible isolate, while the highest pathogenicity isolate BcB-2 was the least susceptible isolate to the tested fungicides. Medium effective concentrations (EC 50) of the tested fungicides indicated that Teldor 50%SC was the superior fungicides against mycelial growth of the all tested isolates, while Suntop El-nasr 70% WP was the inferior one. The EC 50 values of the tested fungicides for mycelial growth of the least aggressive isolate (BcI-3) were less than that of the other tested isolates. Under greenhouse condition, all tested fungicides were control gray mold disease on tomato. Data revealed that when tested fungicides treated as curative or protective, were effective in reducing the disease severity of gray mold produced from the most and least aggressive isolates. Tested fungicides Teldor 50% SC and Toledo 43% EC gave excellent control of gray mold disease when applied as protective or curative. All tested fungicides, expect Suntop El-nasr 70% WP, were effective in controlling gray mold as curative treatement.

In Bangladesh, the average yield of blackgram is not satisfactory level. There are many reasons for a lower yield of blackgram. Nitrogen and weed management in winter season is of them. This study is to find out the effect of nitrogen sources on the yield of different black gram varieties. The experiment was laid out in a split-plot Design with three replications. Nitrogen source was assigned to main plots and varieties to sub-plots. The field experiment was conducted at the Agronomy field of Central Research Farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during the period from September 2014 to January 2015. The experiment consisted of two factors such as nitrogen sources and blackgram varieties. The treatments were as follows: Factor A: nitrogen sources (3 types) viz. T 1 : prilled urea, T 2 : biofertilizer, T 3 : no nitrogen (control) and Factor B: varieties (4 types) viz. V 1 : BARI mash-1, V 2 : BARI mash-2, V 3 : BARI mash-3 and V 4 : local mash. In case of different nitrogen sources, the highest grain yield and harvest index (1.45 t ha -1 and 40.05%) was found from biofertilizer application. This treatment also showed highest pod length (5.28 cm), pods plant -1 (34.80), seeds pod -1 (7.08) and 1000-seed weight (40.55 g). Among the blackgram Original Research Article

A field experiment was conducted at the Agronomy field of central research farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during the period from June 2014 to December 2014 to study the influence of nitrogen on growth and seed quality of T. Aman rice variety with interaction effects between nitrogen doses and T. Aman rice varieties. The experiment consisted of two factors such as nitrogen fertilizer and variety. these were as follows: Factor A: Nitrogenous fertilizer (6 levels) viz. N0- controlled, N1- 50% less than BRRI recommended dose, N2- 25% less than BRRI recommended dose, N3- BRRI Recommended dose, N4- 25% higher than BRRI recommended dose, N5- 50% higher than BRRI recommended dose and Factor B: T. Aman rice (3 varieties) viz. V1 – BRRI dhan44, V2 - BRRI dhan54, V3 - BRRI dhan56. The experiment was laid out in a split-plot design with three replications. Nitrogen was assigned to main plots and variety to sub-plots. In case of different levels of nitrogen, the treatment N4 (25% higher than BRRI recommended dose) showed good morphological growth and also produced good quality seed than other treatments which is also true for variety V1 (BRRI dhan44). The interaction of N4V1 (25% higher than recommended dose with BRRI dhan44) treatment is suitable for producing better plant growth and seed of T. Aman rice. The study was concluded that higher dose of urea than BRRI recommendation dose with BRRI dhan44 variety produced good quality seed.