Kinds of plants

Most of the Fast Plants® classroom activities are written for use with Standard Fast Plants® seed.

Listed below are other specialized plant types for investigating topics in areas such as: genetics, physiology, and environmental studies. Suggested investigation areas are listed for each plant type in the table below and on corresponding pages.

Seed Stock	Image	Description	Investigations	Buy	PDF
Standard (Improved Basic)		standard Fast Plant for form and performance; flowers in 13-17 days, variable expression of purple pigment in stems	life cycles, environmental science, botany, comparative morphology, physiology	Buy It	View Seed Stock Profile »
Purple Stem, Hairy (High Anthocyanin)		dominant expression of purple pigment in stems (also in petioles and bud tips); also selected for higher-than-usual number of hairs	genetic studies of purple pigment (anthocyanin) production and expression in crosses with Non-Purple Stem mutant, study of inheritance of leaf hairs	Buy It	View Seed Stock Profile »
Non-Purple Stem (Anthocyaninless)		recessive gene blocks the expression of purple, red, or pink pigment, also selected for few or no hairs	genetics (see Purple Stem, Hairy)	Buy It	View Seed Stock Profile »
Yellow-Green Leaf		recessive, leaves yellow-green, purple pigment in stems	genetics, photosynthesis	Buy It	View Seed Stock Profile »
Non-Purple Stem, Yellow-Green Leaf		double recessive mutant, with yellow-green leaves and no purple pigment expressed in plant	genetics, photosynthesis	Buy It	View Seed Stock Profile »
Rosette-Dwarf		recessive gene, gibberellin-deficient mutant, compact due to shortened internodes; attains normal height after application of 100 ppm gibberellic acid; flowering in 18 days	genetics, physiology	Buy It	View Seed Stock Profile »
Tall Plant (Elongated Internode)		recessive, abnormally tall due to elongated internodes, gibberellin-overproducer; may require staking	genetics, physiology	Buy It	View Seed Stock Profile »
Petite		recessive; plants reduced to a height of 5-15 cm; not a gibberellin-deficient mutant	genetics, physiology	Buy It	View Seed Stock Profile »
AstroPlant		recessive; variant of Petite stock, shorter and more uniform in height (10 cm)	genetics, research in space	Buy It	N/A
Variegated (Somatic Variegated)		maternal inheritance (chloroplasts); irregular patches of green white on green leaves	maternal (cytoplasmic) inheritance, photosynthesis	Buy It	View Seed Stock Profile »
F1 and F2	Image	Description	Investigations	Buy	PDF
F1 Non-purple Stem, Hairless		F1 seed from a cross of Non-Purple Stem, Hairless with Purple Stem, Hairy. F1 has dark green leaves and a purple stem. Leaf hairs are intermediate	Monohybrid genetics, quantitative genetics	Buy It	View Seed Stock Profile »
F2 Non-Purple Stem, Hairless		F2 plant show a 3:1 segregation of purple stem: non-purple stem and polygenic inheritance for leaf hairs. Score phenotypes 3 to 5 days after sowing	monohybrid genetics	Buy It	View Seed Stock Profile »
F1 Non-Purple Stem, Yellow-Green Leaf		F1 seed is from the cross Non-Purple Stem with green leaves with Purple Stem, Yellow-Green Leaf. F1 has dark green leaves with purple pigment	dihybrid genetics, quantitative genetics	Buy It	View Seed Stock Profile »
F2 Non-Purple Stem, Yellow-Green Leaf		F2 plants show a ratio of 9 green and purple stem : 3 green and non-purple stem,: 3 yellow-green and purple stem : 1 yellow-green and non-purple stem. Score phenotypes 5-7 days after sowing in planting mix	dihybrid genetics, quantitative genetics	Buy It	View Seed Stock Profile »
F1 Rosette		F1 seed is from the cross Standard with Rosette-Dwarf. F1 resembles standard with green leaves and purple anthocyanin in stems	monohybrid genetics	Buy It	View Seed Stock Profile »

Rapid Cycling Brassica Collection

The Rapid Cycling Brassica Collection, RCBC, was established in 1982 by Paul Williams as a means for distributing seed and information, about various genetic stocks of 6 different species of rapid cycling brassicas.  Initially known as the Crucifer Genetics Cooperative (CrGC) the collection now resides under the Wisconsin Fast Plants® Program website.  The RCBC provides seed stocks of rapid cycling brassicas together with descriptions and ordering information through an RCBC Catalog.  More detailed information (photos, pedigrees, etc.) on individual seed stocks is provided through Seed Stock Documents (SSD).  General information on growing RCBs and uses of RCB seed stocks for research and education are provided as Information Documents (ID).

Genomes of the Rapid Cycling Brassica Species

species	nuclear symbol	haploid number	cytoplasm symbol	diploid genome	days to first flower (20-25°C)
Brassica rapa	a	10	A	Aaa	16
Brassica nigra	b	8	B	Bbb	20
Brassica oleracea	c	9	C	Ccc	30
Brassica juncea	ab	18	AB	ABaabb	19
Brassica napus	ac	19	AC	ACaacc	25
Brassica carinata	bc	17	BC	BCbbcc	26