Table 7. Effect of fumigation programs on cucumber plant height, root galling index, root disease index, yield and income.
Site | Treatmenta | Rate (g a.i. m-2) | Plant heightb (cm) | Root galling indexc (%) | Root disease index (%) | Yieldd (kg m-2) | Incomee (¥ m-2) |
---|---|---|---|---|---|---|---|
Tongzhou, 2012 | 1,3-D | 20 | 204.4af | 2.04c | 0.56c | 3.96ab | 9.32ab |
MNa | 40 | 189.4a | 31.11b | 7.50b | 3.23b | 7.81b | |
1,3-D+MNa | 10+20 | 205.4a | 6.20c | 2.59c | 4.12ab | 9.40a | |
MB | 50 | 209.7a | 0.37c | 0.00c | 4.91a | 10.51a | |
Untreated | / | 141.3b | 42.78a | 17.22a | 2.25c | 5.86c | |
Shunyi, 2013–2014 | 1,3-D | 20 | 174.6b | 11.67c | 15.00bc | 9.39ab | 21.88ab |
MNa | 40 | 181.8ab | 39.17b | 30.83b | 8.79b | 20.64b | |
1,3-D+MNa | 10+20 | 179.3ab | 5.00c | 5.00cd | 9.92a | 24.39ab | |
MB | 50 | 186.1a | 3.33c | 4.17d | 10.12a | 25.56a | |
Untreated | / | 156.3c | 78.33a | 63.33a | 7.66c | 14.04c |
a Abbreviations: 1,3-D = 1,3-dichloropropene; MNa = metam sodium; MB = methyl bromide.
b Cucumber height collected at 4 WAT.
c Root galling index and root disease index were collected at the end of the trials.
d Cucumber yield collected at each harvest time and summed together at the end of the trials.
e Cucumber income collected at each harvest time and accumulated together at the end of the trials.
f In each column, data are means of three replications. Means followed by the same letter are not significantly different (P = 0.05) according to the LSD test