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This group is the more common of the two, especially outside Asia; names such as napa cabbage, dà báicài (Chinese: 大白菜, "large white vegetable"); Baguio petsay or petsay wombok (); Chinese white cabbage; "wong a pak" (Hokkien, Fujianese); baechu (Korean: 배추), wongbok; hakusai (Japanese: 白菜 or ハクサイ) and "suann-tang-pe̍h-á" (Taiwanese) [2] usually refer to members of ...
During head formation, 25 to 40 mm (1 to 1 + 1 ⁄ 2 in) of water per week is needed to maintain sustained growth rates. [27] Temperature requirements are low. Temperatures below 0 °C (32 °F) are tolerated for short time periods; persistent frosts below −5 °C (23 °F) are not endured. [14] Too low temperature can induce premature bolting.
Bok choy (American English, Canadian English, and Australian English), pak choi (British English, South African English, and Caribbean English) or pok choi is a type of Chinese cabbage (Brassica rapa subsp. chinensis) cultivated as a leaf vegetable to be used as food.
On top of the gradual growth of the plant, the image reveals the true meaning of phototropism and cell elongation, meaning the light energy from the sun is causing the growing plant to bend towards the light aka elongate. Plant growth and development are mediated by specific plant hormones and plant growth regulators (PGRs) (Ross et al. 1983). [10]
The equation for exponential mass growth rate in plant growth analysis is often expressed as: = Where: M(t) is the final mass of the plant at time (t). M 0 is the initial mass of the plant. RGR is the relative growth rate. RGR can then be written as:
Growing degrees (GDs) is defined as the number of temperature degrees above a certain threshold base temperature, which varies among crop species. The base temperature is that temperature below which plant growth is zero. GDs are calculated each day as maximum temperature plus the minimum temperature divided by 2, minus the base temperature.
DIF is a greenhouse technique involving temperature control for the purpose of controlling plant internode length and thus elongation rates. DIF's effectiveness has led to a reduction in the need and use of chemical plant growth regulators. Although many common greenhouse plants do react strongly to -DIF, there are some plants which show little ...
Irrigation is the process of artificially applying water to soil to allow plant growth. This term is preferably used when large amounts of water is applied to dry, arid regions in order to facilitate plant growth. The process of irrigation not only increases the growth rate of the plant but also increases the yield amount.