Enterprise black (enterprise sword black ink) ink orchid

Enterprise sword black ink, referred to as enterprise black, is an important horticultural variety of ink orchid. This kind of plant type is tall and straight and majestic, the leaves are straight and oil-green, and it has the beauty of passing through mountains and rivers. It is called Shanchuan newspaper in South Korea. Shunde sells more than 2 million gladiolus to South Korea every year, and most orchid plantations in Shunde take planting enterprise black as the main variety. We need to understand the law of the growth and development of enterprise black, and take it as a basis for scientific management. According to the author's observation records and experience for many years, it is summarized as follows, for reference only. About 5 yuan per seedling.

1. The vegetative growth stage of Qijian black ink plant is mainly composed of bulbs, sheath leaves, leaves and roots. Usually in spring, the vegetative buds were differentiated from the axillary buds on the bulb nodes in February, and the new buds were unearthed in March and began to elongate in April, 8.8cm in May, 9.4cm in June, 7.8cm in July, 5cm in August, and reached the highest 45.9cm in September (average value from 2002 to 2005).

Second, in the growth and growth stage of Qijian black ink, when the leaf elongation is about to reach the maximum, the basal node, that is, the bulb (Reed head), enlarges rapidly, and the corm node begins to differentiate into flower buds in early August (about the Beginning of Autumn). The orchid usually blossoms stably in January, around the Spring Festival, so it is called the orchid. According to this, it can be judged that the orchid is a short-day crop. It takes about one month (from mid-August to early September) for flower bud differentiation, about one month for flower bud development (from early September to early October), and two months for flower bud development (early October to late November). It takes about 25 days (from mid-November to early December) for the flower stem to draw high free pod (sheath leaf) 10cm (to meet the requirement of export orchid gladiolus), and it takes about 25 days from pod 10cm to extraction (mid-December to mid-January).

We summed up the development period of Qijian black ink as the Beginning of Autumn differentiation, the End of Heat starting stamens, White Dew emerging, Cold Dew flat pods, Lesser Snow pods, the Beginning of Spring Biaoqi. III. Preliminary division of the growth stage of Qijian black ink; germination period February-March New Seedling elongation period April-September Flower Bud differentiation period August Flower Bud Development period September-October bract stage October-mid-December heading stage mid-December-mid-January