EFFECT OF SOWING DATES ON THE YIELD CONTRIBUTING CHARACTERS AND YIELD OF MUSTARD (Brassica campestris)

Abstract

The experiment was conducted in the experimental field of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka during the period from November, 2013 to February, 2014 to find out the effect of sowing dates on the yield contributing characters and yield of mustard. The experiment comprised of two factors- Factors A: Sowing date (3 times)- S1: Sowing at 13 November, 2013, S2: Sowing at 20 November, 2013, S3: Sowing at 27 November, 2013, Factor B: Mustard varieties (5 mustard varieties)- V1: SAU Sarisha-14, V2: SAU Sarisha-15, V3: SAU Sarisha-16,V4: SAU Sarisha-18 and V5: BARI Sarisha-15. The two factors experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. Data on different yield contributing characters and yield were recorded and significant variation was recorded for different treatments. For different sowing dates, at 30, 40, 50, 60 DAS and at harvest, the tallest plant (33.39, 54.89, 71.88, 88.83 and 93.07 cm) was recorded from S2, while the shortest plant (29.46, 50.45, 67.75, 83.79 and 88.30 cm) from S3. The highest number of siliqua per plant was found from S2 (89.27), whereas the lowest number from S3 (80.47). The longest siliqua was observed from S2 (5.07 cm), while the shortest siliqua from S3 (3.91 cm). The highest seed yield was recorded from S2 (1.70 t per ha) and the lowest from S3 (1.37 t per ha). The highest stover yield was found from S2 (2.59 t per ha), while the lowest from S3 (2.16 t per ha). In case of different varieties of mustard, at 30, 40, 50, 60 DAS and at harvest, the tallest plant (34.34, 55.96, 72.76, 89.82 and 93.68 cm) was observed from V4, whereas the shortest plant (29.06, 48.03, 65.59, 81.69 and 86.26 cm) from V1. The highest number of siliqua per plant was obtained from V4 (89.78), while the lowest number from V1 (80.44). The longest siliqua was obtained from V4 (5.00 cm), whereas the shortest siliqua from V1 (4.13 cm). The highest seed yield was recorded from V4 (1.68 t / ha), while the lowest from V1 (1.42 t / ha). The highest stover yield was observed from V4 (2.55 t per ha) and the lowest from V1 (2.25 t per ha). Due to the interaction effect of sowing dates and mustard varieties, at 30, 40, 50, 60 DAS and at harvest, the tallest plant (39.57, 62.60, 76.46, 96.87 and 98.86 cm) was observed from S2V4, while the shortest plant (27.87, 46.20, 63.85, 79.83 and 85.25 cm) from S3V1. The highest number of siliqua per plant was observed from S2V4 (97.67) and the lowest number from S3V1 (76.00). The longest siliqua was observed from S2V4 (6.40 cm), while the shortest siliqua from S3V1 (3.47 cm). The highest seed yield was recorded from S2V4 (1.89 t/ ha), whereas the lowest from S3V1 (1.27 t/ ha). The highest stover yield was observed from S2V4 (2.84 t per ha) and the lowest from S3V1 (2.08 t / ha). Sowing on 20 November and SAU Sarisha-18 was more potential in regards to yield contributing characters and yield of mustard.