ABSTRACT

Viability and germination of Eryngium seeds with growth regulator treatment and priming after one year of storage under low and ambient temperature were studied at the Regional. Seeds kept in low temperature (3-5 0 C in refrigerator) were germinated but no seeds were germinated that stored under ambient temperature. Growth regulator enhanced and increased seed germination but short time soaking (12-24 hours) gave good germination compared to no soaking and longer period (36-96 hours) of soaking. Growth regulator treated with 12 hours soaking of seeds gave the highest seed germination (32.3%) of low temperature stored in the laboratory.

The study was conducted at the Hill Tracts Agricultural Research Station, Ramgarh during two years in 2007 and 2008 to evaluate the variability and performance of selected 11 velvet apple germplasm. A lot of variations in different parameters were observed among the trees. The age of plant varied from 7 to 25 years having tree volume 58 m3 to 428 m3. The number of fruits ranged from 42 to 674 per plant with single fruit weight 118 to 283 g. The length and diameter ranged from 6.63cm to 7.7cm and 5.73cm to 8.3cm, respectively. The maximum edible portion (68.3%) was recorded in DD RAM 011, while it was the lowest (47.6%) in DD RAM 001. The highest TSS% ranged from 7.28% to 14.9%. Highest yield per plant (103.67 kg) was observed in DD RAM 001 and it was lowest in DD RAM 008 (5.99 kg). All the parameters showed poor correlation among them. Considering the factors of weight and size, edible portion %, TSS %, taste, sweetness, and yield per plant, the line DD RAM 011 was found better than others. Keywords: Variability; performance; velvet apple; hilly areas DOI: http://dx.doi.org/10.3329/bjar.v36i2.9248 BJAR 2011; 36(2): 223-230

A field experiment was conducted at ARS, Raikhali, Rangamati during October, 2003 to July 2005 to determine the optimum spacing and seed rate to maximize yield and profitability of Bilatidhonia (Eryngium foetidum L.). A factorial randomized complete block design was followed consisting four methods of sowing (D1 = broadcast, D2 = line sowing (10 cm), D3 = line sowing (15 cm), and D4 = line sowing (20 cm) and three levels of seed rate viz., S1 = 20, S2 = 30, and S3 = 40 kg/ha. Broadcasting and closer spacing (10 cm) with 40 kg seeds/ha showed better performance in respect of yield, yield attributes and profitability. The maximum number of plants/rn2 (590), fresh yield (46.89 t/ha), gross return (Tk. 1031 thousand), gross margin (Tk. 858.1 thousand/ha) and benefit cost ratio (5.32) were obtained from broadcast method of sowing with 40 kg-seed/ha.Keywords: Seed rate and method of sowing; Eryngium foetidum.  DOI: 10.3329/bjar.v35i2.5885Bangladesh J. Agril. Res. 35(2) : 227-234, June 2010

Growth performance of Eryngium foetidum L. with different seed treatment and priming duration was studied at the field laboratory of Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh during November 2011 to June 2013. Treatment of seeds with growth regulator and priming of seeds enhanced seed germination in the field. Consecutive 96 hours soaking and drying (8 hours soaking and 4 hours drying -8 times) of Bilatidhonia seeds treated with GA 3 500 ppm and Kinetin 50 ppm gave the maximum germination (57.61%) and enhanced germination (13.0 days). Chemicals (Tetracycline plus copper oxi-chloride had no significant effect on germination. Consecutive 72 to 96 hours soaking with growth regulator treatment showed better performance in the field and gave maximum biomass (39.4 t/ha). The untreated or pesticide treated seeds showed poor germination and growth performance.