To observe the comparative evaluation of different planting methods and spacing on jute seed production, a research investigation was carried out at the field of Jute Research Sub-station, Monirampur, Jashore during the period of August, 2015 to January, 2016 with tossa jute (Corchorus olitorius) var. BJRI Tossa Pat-4. The study was consisted three planting methods i.e. direct seed sowing, stem cutting and seedling transplanting method as well as three spacing viz. 30 cm×7 cm, 30 cm×10 cm and 30 cm×15 cm. The experi ment was laid in a Randomized Complete Block Design with three replications having unit plot size of 3×3 m 2. Different treatments showed significant performance on seed production of tossa jute under puddle condition at planting period. The results revealed that the combination of seedling transplanting method and 30cm×10 cm spacing confired the minimum no. of seedling mortality (3.33%), maximum plant heigh (166 cm), highest no. of branches/plant (4.98), maximum no. of pod/plant (26), lengthen pod (6.13 cm) and the best seed yield (779 kg/ha), whereas the benefit cost ratio (1.35) was also the highest. On the other hand, the studied morpho-physiological, yield and yield attributes found to be the lowest and seedling mortality found to be the highest from the combination of stem cutting method along 30 cm×7 cm spacing. So the combination of seedling transplanting method and spacing (30 cm×10 cm) could be recommended for economic jute seed production in the puddle land condition at planting period
Key words: Jute, planting method, spacing, puddle, seed yield.
Nowadays, most of the farmers are familiar with late jute seed production technology. The optimum sowing time of late jute seed is from mid July to August in medium high to high land where rain or flood water may not stand (Alam et al., 2012). There are some limitations to produce jute seed at late season in medium high to high land due to competition with T. Aman and some high value crop like summer vegetables (Begum and Kumar, 2014). Late flood with stagnant water is another barrier for jute seed production at planting or sowing period. During this period, land become wetted or stagnated by rain water as well as flood water. Sometimes, the optimum time of sowing go away, if farmers wait for suitable condition of tilth. Tossa jute plant, especially seedling can’t survive in stagnant water. In this situation, farmers of our country try to find out an alternative method to avoid this problem. Information on seed production in wet land condition is still scarce. However, late jute seed could be produced by the help of direct sowing, stem cutting and seedling transplanting method (Mollah et al., 2015; Roy, 2013). All the practices need to be taken under consideration for secured jute cultivation in Bangladesh. Furthermore spacing influences growth rate and crop yield as a result of inter-plant competition for different inputs needed for growth and development of fibre crops (Tripathi et al., 2013). Mollah et. al. (2015) reported that late season kenaf produces the highest seed yield when planted at 30 cm ×15 cm spacing under transplanting method. Thus investigation on planting methods and spacing become mandatory for understanding the mechanism of tossa jute seed production in the puddle land condition at planting period.