Newly Posted Articles

OXYGEN: Lack of

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago In cases of pot waterlogging it is probably the lack of oxygen which does the damage to the roots. OA82-6 Read More

PAPHIOPEDILUMS: Colors of Flowers

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago They must be clean, clear, concentrated and contrasted to rate highly; is redder better?; vinicolors; culture and color; light used for evaluation of color; refer to SA87-21 Read More

PAPHIOPEDILUMS: Deflasking

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A new mix for P. rothschildianum seedlings is 35% rockwool, 35% firbark, 10% Styrofoam chips, 10% meranti (Shorea -- not in the R.H.S. Diet, of gardening) sawdust, 10% volcanic pumice; South Africa... Read More

ALARM SYSTEMS: How to Make One

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Basic requirements are a six-volt car battery, a bell or a buzzer, an ordinary bell transformer, a 24 volt A.C. relay, a set of contacts, an inexpensive bell button, a shut-off switch, extension wi... Read More

PARENTAGE: Pod Versus Pollen

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Many plants will breed as either the pod plant or the pollen plant but rarely as the reverse; referenct to Phalaenopsis equestris, which has been listed 25 times as a pollen parent and only five ti... Read More

PESTICIDES: Compatibility

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Mixing of two brands is often done but combinations may injure plants where each singly does not; mix powders with powders, E.C's. with E.C's., always in the same class of pesticide. AH86-66 Read More

PH OF WATER: Adjusting Ph When Too High

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use dilute sulphuric acid or dilute orthophosphoric acid. A68-719; A78-13 Read More

PHALAENOPSIS: Breeding for Colour

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago For the names of plants used in producing leading hybrids in whites, whites-with-coloured-lips, pinks, stripes, yellows and novelties, refer to SA84Sept-113 Read More

NUTRITION: Principles

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Review of all aspects, from a scientific point of view; refer to A61-277+ Read More

PHALAENOPSIS: Octoploid with 152 Chromosomes

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Its characteristics compared with a triploid were, a sturdy upright spike, flowers with extremely heavy substance, overlapping tepals; considered valuable for breed- ing with tetraploids. P68(l)-7+ Read More