Newly Posted Articles

BARKS: Toxins

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago They exist in fresh (Australian pine) bark but are absent in aged; ageing is achieved by storing it moist for six to eight weeks; tannin can be leached by soaking. AU76-75; AU79-51 Read More

BASKETS, WIRE: For Various Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago An open.-mesh basket filled with fir bark is the nearest thing to growing orchids on trees. A77-731 Read More

SEED PODS: Time to Maturity

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago The farther from the equator the plant is the longer it takes to maturity; use of a blue light might reduce this effect. NH78(3)-18 Read More

SEED: Contaminants

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago To render them sterile before sowing: some spores are only weakened in treatment of seed with calcium hypochlorite or hydrogen peroxide and can contaminate the flasks months later; use a solution o... Read More

SEED: Dormancy Released by Refrigeration

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Cypripedium reginae seeds after several months of refrigeration reach high percentages of germination; for the results of the experiment refer to A87-935; Wll-292 Read More

FLOWER SPIKES: Cutting Them Off Early

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago After a reasonable period (unstated) the spikes should be cut as a contributing factor in long term successful cultivation; as for Oncidium concolor, which otherwise has a relatively short greenhos... Read More

FLOWER SPIKES: Numerous, But They Abort

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago On bulbous epidendrums they appear in promising numbers but then dry up, if they do not get sufficient light or have been deprived of sufficient rest of several weeks duration after maturing their ... Read More

FLOWERS: Drying

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Place flowers, after removing the ovary, in a box on a layer of fine sand then carefully fill with sand; place in warm spot for several days; the color is preserved. A63-927; OR79-208 Read More

FLOWERING TIMES: Use of Fertilizers

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago They affect the number and size of blooms but not the setting or the time of setting of blooms; temperature and daylight are the factors which seasonally flowering plants utilize their flowering me... Read More

PSEUDOBULBS: Twisted Bulbs on Cattleyas

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago These can develop for no apparent reason, except that water lodging in immature growths may be the cause. A85-832 Read More