Maize 1/1 Flashcards
Maize (Zea mays) is an annual plant member of the grass ___ family
Graminea or Poaceae
First Maize plant theory (tripartite hypothesis)
maize was domesticated from an unknown wild, now extinct maize plant with features comparable to contemporary maize’s ear
First Maize plant theory (catastrophic sexual transmutation Theory )
developed by a rapid sexual transformation that condensed the branches of teosinte and positioned them in the plant’s female expression region
Tripsacum - Zea diploperennis hypothesis
History of Maize theory, as a modernised variant of the tripartite hypothesis, it suggested that maize evolved from the offspring of a cross between Z. Tripsacum and Diploperennis dactyloides
It is likely that maize was introduced to Australia with the first fleet in what year?
1788
What occured in 1947 to do with Maize crops?
The first commercial hybrid maize crops were produced based on US Corn Belt hybrid.
first Australian-bred hybrids (GH96A and GH112A) were released in what year?
1948
what is the first rust resistant maize cultivar in Australia?
QK37, 1961
ratio of dryland and irrigated maize
50/50
Producing a high-yielding grain harvest from irrigated maize in the Riverina area typically takes between ____ and ____ mm of irrigation water per ha
600mm and 1000mm (6 to 10 ML/ha)
amount of water needed for irrigation is dependent on many factors; (5)
-the variety that is used,
- the water-holding capacity of the soil,
- the effectiveness of the irrigation system, -
- evaporation, and
- rainfall that occurs directly on the crop
Flint corn
also known as Indian corn or calico corn, is a kind of maize that comes from the Zea mays var. indurate plant (Zea mays L.). The term “as hard as flint” refers to the fact that each kernel has a tough outer coating that serves the purpose of protecting the more delicate endosperm.
by med-slow flint, quick dent, and med-slow dent
contains the least amount of protein
The two different types of starch in yellow and white maize?
- Amylopectin 73%
- ## amylose 27%
Maize is classified as a C?
C4 tropical plant, superior to c3 plants, in its efficiency in using carbon dioxide, solar radiation, water, and nitrogen