1 To whom reprint requests should be addressed. Current address: Bodger Seeds, 1851 W. Olive, Lompoc, CA 93436. Journal paper no. J-14892 of the Iowa Agriculture and Home Economics Experiment Station, Ames
In a broad sense, the term “handling seed”can refer to everything that happens between planting stock seed for a seed crop and planting of commercial seed by a grower. In a narrower sense, the term can refer to events between harvest of a commercial seed crop and planting by a grower. These events usually include seed harvest, processing, drying, storage, and transportation. They may also include fermentation, chemical treatment, sizing, blending, encapsulation, coating, and taping. Modern methods of handling seed through these events require machinery.
Journal paper of the Iowa Agriculture and Home Economics Experiment Station, Ames, IA, and supported by the Hatch Act and State of Iowa funds. We thank Betty Winningham for seed collection. This paper is dedicated in memory of her.
black cumin seeds and the growth of seedlings present a big challenge for achieving high levels of growth and productivity of this crop ( Papastylianou et al., 2018 ). Seeds of black cumin possess dormancy characteristics due to their underdeveloped
after repeated cropping with certain cucurbit crops was attributed to autotoxicity of compounds in root exudates and released by decomposing root tissues ( Yu, 2001 ; Yu et al., 2000 ). Germinating seeds release many compounds that affect organisms in
Penstemon, a U.S. native plant/wildflower, is increasing in use as a landscape plant. Penstemon species are commonly propagated by seeds. However, species vary greatly in percent seed germination,
Seeds from eight sources of Penstemon germplasm were given cold moist stratification periods of either 0, 2, 4, 6, 8 or 10 weeks. One-half of the seed for each treatment was scarified with sandpaper. The study was repeated twice, once in 1989 and once in 1990.
Seed germination varied with species, and with the length of stratification. Greatest germination occurred at the 6, 8 and 10 week periods and the lowest germination occurred with no stratification. There were also differences between species in percent germination, Average percent germination was highest for P. gracilis and lowest for P. haydenii There was a significant species × stratification interaction, Seed scarification did not influence germination as much as seed stratification in these studies
Edamame, also known as vegetable soybean, is a specialty type of soybean harvested for human consumption at an immature seed stage. Edamame produces large seeds (>20 g/100 seeds) that have a sweet, nutty flavor. Traditionally a crop produced and
Oral Session 34—Seed and Stand Establishment Moderator: Gene M. Miyao 21 July 2005, 2:00–3:00 p.m. Room 105
133 POSTER SESSION 20 Seed Establishment/Cross-Commodity
with highest cowpea cultivation ( Boukar et al., 2018 ; Singh et al., 1997 ). Cowpea can be used at all stages of growth ( Fang et al., 2007 ; Nielsen et al., 1997 ). The green seeds can be used fresh or canned or frozen for humans. The young leaves