Packaging Technologies for Jasmine Production (Jasminum sambac Ait.)

Abstract

This experiment was carried out during August 2002 to March 2003 at Si Sa Ket Horticulture Research Centre with an objective to test yield and flower sizes. The production technologies were examined using a randomized complete block design with 4 replications and of 5 packages of technologies (treatments). The packages of technologies used were as following: (1) The first package had jasmine grown in a screen house with 16 mesh net with a light pruning, twice a year. Soil surfaces underneath the plant canopies were mulched with rice straw and using mini-sprinkler. for water irrigation, 500 ppm paclobutrazole was sprayed 10 day before pruning the plant and 2.5% potassium nitrate (KNO₃) was sprayed immediately after pruning followed by spraying of 500 ppm chlomequat chloride (CCC) 10 days after pruning. The fertilizer grade 15-15-15 was applied monthly at 100 g/plants every mouth. (2) Follow the first package of technology but the concentration of paclobutrazole was reduced to 250 ppm. (3) follow the second package of technology but was mulched with black polyethylene sheets. The plant was dripped irrigation and sprayed with seaweed extract 3 times at 10 days before pruning, the day of pruning and 20 days after pruning. (4) The plant was grown out side a screen house and followed the third package of technology but the plant was not sprayed with seaweed extract. (5) The plant was grown out side a screen house and followed the first package of technology but the plants was not using any chemical. The results showed that the 3^rd , 1^st and 2^nd package of technologies were highly significant to increase floral number/plant of jasmine than the 4^th and 5^th set of technologies; the yield of 904.3, 786.0, 698.1, 279.2, 192.0 flower number/plant respectively and increased flower length but did not affect the width and petal length.