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The Study Potential Cassava Varieties Progress in Lop-Buri province, Thailand
Pacharada Chaisri (1) Ed Sarobol (2) Kingkan Panitnok (3) Sakol Chaisri (1)Nittaya Dontree(1)
(1) Lop Buri Research Station, Kasetsart University, Kok-Charoen, Lop-Buri, Thailand, 15250
(2) Department of Agronomy, Faculty of Agriculture, Kasetsart University,Bangkok, Thailand, 1090
(3) Khao Hin Son Research Station, Kasetsart University, Phanom Sarakham, Chachoengsao, Thailand, 24120
* correspondence
INTRODUCTION
ABSTRACT
The yield trial for evaluation of suitable casava lines cultivars for cultivated conditions of Lop-Buri province by using 4 recommended cassava cultivars (Sriracha1, KU 50, HB 60 and HB 80 ) and elite line from Kasetsart cassava Breeding Project (MKULB , MKULB , MKULB , MKULB , MKULB , MKULB , MKULB , MKULB , MKULB , MKULB , MKULB , MKULB , MKULB , MKULB , MKULB and MKULB ) as conducted at the Lop-Buri research station field with 3 replication was conducted in February 2010 – March 2011 and April March The results revealed that line MKULB , KU 50, and HB 80 gave highest yield per hectare (50.94, 45.63, t/ha) while MKULB , MKULB , HB 60 gave highest yield per stem (6.67, 5.59 and 5.06 kg/stem) and HB 60, MKULB , KU 50, SR 1, MKULB , HB 80, MKULB , MKULB and MKULB gave root starch content highest (25.22, 25.07, 24.96, 24.62, 24.33, and % respectively)
In 2011/12, Thailand had the harvest area of cassava about 1,178,790 hectare and had the total yield about 25,107,758 ton. In 2009, Thiland had the average yield of ton/hectare, while the average yield in 1990 of ton/hectare The 20 years ago, the average yield increase about ton/hectare ( Office of National Economy, 2533,2554,2555) However, the Lop-Buri province had harvested area 21, hectare and had the average yield of ton per hectare ( 2012) Howeler et al. (2000) reported that the average yield of Asia was 2.30 ton per rai (14.37 ton per hectare) The average yield per area will be increase, if the new cassava varieties can adaptation and giving the high yield. So “The Study Potential Cassava Variety Progress in Lop-Buri province, Thailand ” was to evaluate the high potential cassava Variety Progress grown on Lop-Buri province.
อุปกรณ์ และวิธีการ
RESULTS
Table 1 Mean of yield and component yield of 20 cassava lines/varities grown in Lop-Buri station
(23/2/10-25/2/11 and 25/3/11- 27/3/12)
Varieties/Lines
Yield/h
(ton)
Yield/pl
(kg)
% Starch
No. root/pl
H- HV
(cm.)
HV-index
MKULB
29.38c 19
3.41d
21.73b
10.70
265.67
0.513
MKULB
36.19c 10
3.90c
25.07 a
16.33
243.67
0.607
MKULB
33.31c 15
3.77c
20.40 bc
13.70
239.42
0.534
MKULB
39.44bc 7
4.45c
24.62 ab
14.00
273.83
0.636
MKULB
50.94a 1
5.59b
23.07 ab
11.22
232.42
0.587
MKULB
38.06bc 8
4.43c
24.60 ab
15.98
201.92
0.521
MKULB
41.88bc 4
4.50c
22.48 b
11.93
205.50
0.712
MKULB
41.00bc 6
4.20c
21.72 b
11.58
272.30
0.619
MKULB
35.38c 12
3.35d
17.80 c
10.27
209.08
o.514
MKULB
37.31bc 9
3.60c
20.07 bc
12.97
271.67
0.612
MKULB
24.00d 20
1.99d
22.37 b
8.43
315.50
0.341
MKULB
35.81c 11
3.01d
23.48 ab
10.95
310.42
0.509
MKULB
34.88c 14
6.67a
19.88 bc
10.45
288.83
0.427
MKULB
30.69c 18
2.91d
20.03 bc
9.43
266.17
0.463
MKULB
35.19c 13
3.23d
20.78 bc
15.05
225.50
0.451
MKULB
31.25c 17
3.40d
19.63 c
10.47
0.508
HB 80
44.31ab 3
3.62c
24.33 ab
13.58
263.08
0.566
HB 60
41.38bc 5
5.06b
25.22 a
11.63
302.17
0.627
KU 50
45.63ab 2
4.44c
24.96 a
17.58
278.75
0.562
SR 1
37.06bc 16
3.95c
24.73 ab
15.43
257.87
0.589
Mean
37.13
3.86
22.35
12.59
0.545
F-test T **
F- test L ns
F-test TxL *
LSD %
8.69
0.98
2.71
2.69
66.23
0.114
CV %
22.3 22
10.60
18.6
15.8
12.9
Figure 1 Rainfal in 2010 and 2011 (mm).
Figure 2 Number of rainy days in 2010 and 2011.
ns 1/ = not significant at P < * and ** = P < 0.05, P < 0.01, respectively
1/ Means in the same column followed by the same letter(s) are not significant different at P < 0.05 by Fisher’s LSD
CONCLUSION
Statistically significant differences in fresh root per area, percentage of starch content, number of root per stem were found that the MKULB , KU 50 and HB 80 gave highest fresh root yield per area (50.94, and ton per hectare) and gave highest percentage of starch content (23.07, and %) In addition, MKULB , KU 50 and HB 80 gave quite high in high of stem and harvest index too.
REFERENCE
Department of Agriculture Academic Document of Cassava. Field Crop Research Institute, Department of Agriculture, Ministry of Agriculture and Cooperatives pages. (In Thailand).
H. Howeler and Clair H. Hershey Cassava news cassavanews.blogspot.com/Reinhardt Ciat. Cgiar.org/articulos-ciat/ research-development-cassava.pdf-
Lop-Buri Research Station and Statistics of Rainfall. Kasetsart University. (InThanland)
Office of National Economy. 1909,2011, Statistics of Agriculture. Thailand
Acknowledges
This project was financially supported by Kasetsart University Research and Development Institute(KURDI).