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
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