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广东省西江、北江、东江下游的低塱田,由于地势低洼,常年或季节性积水,因此栽培的水稻品种,有浮水稻和深水稻两类型。浮水稻品种如“深水莲”(又称大禾或塘禾),主要分布在最低洼的塘田。茎高3—6公尺;地上部大部分茎节都能发根分蘖(分枝)。茎随水上漲而伸长,浮生水中;水退后横臥地上,匍匐生长,只有上端約一公尺左右,直立生育,出穗成熟。深水稻品种如“大板粘”,主要分布在較浅水的塱田。茎高1—2公尺,地上部茎节通常不发根、分蘗。茎稍能随水上漲而伸长,但水退后仍直立生长。两者的生育习性是有显著区别的。
Low-lying fields in the Xijiang, Beijiang and Dongjiang lower reaches of Guangdong Province have two types of rice cultivars: floating rice and deep-paddy rice due to the low lying, perennial or seasonal waterlogging. Floating rice varieties such as “deep lotus” (also known as Wo or Tang Wo), mainly in the lowest depression of the pond. Stems 3-6 meters tall; most of the shoots above the ground can grow roots and tillers (branches). Stems with the water rose and elongation, floating in the water; lying on the water after lying on the ground, prostrate growth, only the upper end of about one meter, erect fertility, ear maturity. Deep rice varieties such as “sticky board”, mainly in the more shallow water Tian. 1-2 meters high stems, shoots usually above the roots do not hair, tillering. Stem slightly with the water up and elongation, but the water is still standing upright after retreating. The reproductive habits of the two are significantly different.