Eulophia flava (Lindl.) Hook.f. in Thailand has been threatened by agricultural deforestation and city expansion. Efficient seed propagation via tissue culture technique is necessary to enhance the conservation utilization of this orchid. Thus, effects coconut water (CW), benzylaminopurine (BA), naphthalene acetic acid (NAA) on germination rhizome food reserve were studied. Capsules collected a...

the present study describes the encapsulation of protocorm of cymbidium bicolor lindl. from 60 days-old in seed cultures for short- term conservation and propagation. various concentrations and combinations of gelling matrix (sodium alginate) and complexing agents (calcium chloride) were tested to prepare uniform beads. the ideal beads were ob- tained through a combination of 3% sodium alginate...

Dendrobium (lan Hoàng thảo) là chi lan có độ đa dạng về loài lớn thứ hai sau Lọng (Bulbophyllum) nhưng giá trị hơn nhiều. Chi thảo rất nhiều cho hoa đẹp và hương thơm. Trầm - parishii Rchb. f. (Orchidaceae)) một trong những mùi thơm quyến rũ nhất. Vì vậy, đã nghiên cứu được tiến hành để tìm hiểu, tách chiết tinh dầu của loại này. Hiện nay, rừng đang bị suy giảm nghiêm trọng do khai thác quá mức...

Cremastra appendiculata var. variabilis (Blume) I.D. Lund), also known as single-leaf cremastra (SLC), is a rare and threatened species native to Korea, it has the potential be grown beautiful flowering pot or garden plant. There still no reliable strategy multiply SLC. Thus, an effective method for propagating was needed its conservation mass production. In present study, we examined effects o...

carbon and nitrogen are the two elements that most affect plant organogenesis. in vitro, usually as part of the macronutrients. some anecdotal evidence from the literature suggests that the ammonium (nh4+) to nitrate (no3–) ratio may affect orchid organogenesis. in this study, to test this hypothesis, different nh4+: no3– ratios were tested on the development of protocorm-like bodies (plbs) of ...