Effect of spacing on growth and yield of head lettuce on highland | อิทธิพลของระยะปลูกต่อการเจริญเติบโตและผลผลิตของผักกาดหอมห่อบนพื้นที่สูง
2002
Prasit Noree(Maejo University, Chiang Mai (Thailand). Faculty of Agricultural Production) | Nikon Buapon(Royal Project Foundation, Chiang Mai (Thailand). Pang Da Experimental Station) | Phirachat Ruangpradit(Royal Project Foundation, Chiang Mai (Thailand). Pang Da Experimental Station) | Chanram Khamnu(Royal Project Foundation, Chiang Mai (Thailand). Pang Da Experimental Station)
Study on effect of spacing on growth and yield of head lettuce on highland was conducted on December 2000 to August 2001, at Pangda Royal Project, Samerng district, Chiang Mai province. The results showed that the spacing gave a significantly effects on the growth and yield of lettuce c.v. Fame, during winter, summer and rainy season. The spacing 45*60 cm and 60*60 cm with 2 or 3 rows per bed gave higher number of leaf, head size and weight per plant than 25*25 cm and 30*30 cm. But, at 25*25 cm and 30*30 cm with 3 or 4 rows per bed gave highest yield.
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