Effects of equidistant spacings on two sugarcane cultivars
2003
Pradya Nasuriwong | Preecha Pramance | Attachai Jintrawet
Information is needed on the agronomic factors that maximize yield of sugarcane in the tropical environment. This study was conducted to determine and evaluate the effect of plant density on two sugarcane [Saccharum officinarum (L.)] cultivars, K84-200 and U-Thong 2, in approximately equidistant spacing at 12 plant densities ranging from 3,200 to 32,300 plants/ha (0.32 to 3.23 plants/square m, respectively) over a one-year period in Chiang Mai, Thailand. The result of the field experiment showed that the two cultivars differed slightly in their response to population density when tiller number was expressed per unit area. Stalk dry weight, tiller number per plant, and LAI increased with increasing plant population, however, quality of sugarcane juice was not influenced by them. Maximum yields of K84-200 and U-Thong 2 were observed at 2.56 and 2.13 plants/square m (25,600 and 21,300 plants/ ha, respectively. It was concluded that these two sugarcane cultivars will react to change in plant density similar to other commercially grown cultivars in Thailand.
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