lec 30 Flashcards
what is rice?
a grass!
where was rice first domesticated?
china, in the yangtze river around 13 500 years ago
tell me about the subspecies of rice
japonica: short grained, sticky when cooked
indica: long grained
how important is rice as a crop?
third largest food crop, staple food for more than 3 billion people
what are the best growing conditions for growing rice
requires long, hot growing seasons where night time temps stay > 15 degrees
best grown in clay or clay-loam soils
rice is labour intensive. thoughts?
rice is labour intensive, so people needed to work together to cultivate it. likely fueled the start of a civilization
tell me about rice harvesting
seedlings need to be grown in flooded nurseries before being transferred to paddies
plants grow for 3-4 months before the land is drained
once rice is gathered and threshed, the residue is burned
rice harvesting can be bad for the environment. why?
burning rice straw and anaerobic fermentation both release greenhouse gases
rice burning is kinda important. why?
rice concentrates arsenic from the ground + irrigation water –> burning releases silicon which mitigates arsenic uptake in rice
also burning eliminates any disease that might be chilling in the soil or residue
what are the benefits of rice (lots)
anti inflammatory and gluten free!
vitamin B controls blood sugar and is good for cardiovascular system
good source of protein and carbohydrates
high in fibre, low in sodium and fat and cholesterol
golden rice is high in vitamin A too
can rice be grown in alberta?
yeah its possible, but we need some tech
seed film cultivation (SFC) is a biodegradable film layered over moist soil. this helps keep soil warm and prevents moisture loss, which is important bc we have a colder and drier climate
what is wild rice?
not rice, but another aquatic grass typically cultivated by indig peoples in north america
how nutritious is wild rice?
low calorie + highly nutrient dense, rich in protein
also tastes good!
american revolution. tea?
tea.
basically tea was considered a luxury in the 18th century, so it was unreasonably taxed, mostly to fund the war bw england and france. this pissed off the now americans and we have the american revolution.
how was tea discovered?
according to legend, emperor shen nong dropped a leaf into his boiling water and he realized the potential
what are the ideal conditions for growing tea? where is it usually grown?
- lots of precipitation (minimum monthly 100mm, ideally 150mm)
- high humidity (60-80%)
- high temps to avoid frost (ideally 15-30 degrees)
- acidic pH (4.5 to 6.5)
grown in mountainous regions to make flooding easy, usually in terrace fields w good draininage
what are the leaves and flowers of tea trees like?
alternate and serrate leaves, w white bisexual flower
what is the manufacturing process for tea like?
picking, withering, rolling, fermenting, drying, baking (sometimes), grading, packing
PLEASE WEIGH REAL FUCKING DUMB BELLS
what are the types of tea?
white tea: light and ‘sweetened’ taste, not fermented
green tea: fresh taste, not fermented
oolong tea: strong taste, half fermented-half baked
black tea: light taste, fully fermented
pu-erh tea: very strong taste, fully fermented
of the four british tea times, which is most formal? least?
four tea times are breakfast tea, elevenses, afternoon tea, and high tea
afternoon tea is most formal since its rich jobless dickheads
