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โครงการหนังสืออิเล็กทรอนิกส์ด้านการเกษตร เฉลิมพระเกียรติพระบาทสมเด็จพระเจ้าอยู่หัว

Table 14 Height (cm) of cassava at 8 and 12 months after planting in Wang Hai soil series at Nakhon Sawan
Province (rainy season 2017/2018)
Potassium (B) 8 months Av. 12 months Av.
(kg K2O/rai) Kasetsart 50 Rayong 11 (B) Kasetsart 50 Rayong 11 (B)
0 260 245 253 270 256 263
4 270 227 249 291 237 264
8 255 247 251 266 259 263
12 296 223 260 303 238 270
16 301 208 254 312 219 266
Av. (A) 276 a 230 b 288 a 242 b
CV (A) = 6.2% CV (B) = 13.6% Variety (A) = ** CV (A) = 6.2 % CV (B) = 12.0% Variety (A) = *
Potassium (B) = ns (AxB) = ns Potassium (B) = ns (AxB) = ns
Means in a column followed by the same letter are not significantly different at 5% level by DMRT,
* : Significant at 5% level, ** : Significant at 1% level, ns : Not significant

Table 15 Fresh Yield (kg/rai) of cassava at 12 months after planting in Wang Hai soil series at Nakhon
Sawan Province (rainy season 2017/2018)
Potassium (B) Cassava variety Average
(kg K2O/rai) Kasetsart 50 Rayong 11 (B)
0 3,533 3,638 3,586 b
4 4,033 4,148 4,091 a
8 4,271 4,014 4,143 a
12 4,512 4,095 4,304 a
16 4,138 3,910 4,024 a
Average (A) 4,097 3,961
CV (A) = 28.7 % CV (B) = 6.9% Variety (A) = ns Potassium (B) = ** (AxB) = ns
Means in a column followed by the same letter are not significantly different at 5% level by DMRT,
** : Significant at 1% level, ns : Not significant

Table 16 Starch Content (%) of cassava at 12 months after planting in Wang Hai soil series at Nakhon
Sawan Province (rainy season 2017/2018)
Potassium (B) Cassava variety Average
(kg K2O/rai) Kasetsart 50 Rayong 11 (B)
0 22.8 27.0 24.9
4 23.1 26.8 25.0
8 24.0 26.8 25.4
12 24.4 26.6 25.5
16 23.7 27.3 25.5
Average (A) 23.6 b 26.9 a
CV (A) = 4.9 % CV (B) = 3.5% Variety (A) = * Potassium (B) = ns (AxB) = ns
Means in a column followed by the same letter are not significantly different at 5% level by DMRT,
* : Significant at 5% level, ns : Not significant

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