The Agri-Reconstruction Project and Rapeseed Project for Restoring Tsunami-Salt- Damaged Farmland After the GEJE – An Institutional Effort - Post-Tsunami Hazard: Reconstruction and Restoration - page 295

Table 18.4 Dry weight of aerial parts of plants cultured with liquid media containing 50, 100 and
200 mM NaCl

50 mM 100 mM 200 mM

Dry-weight
ratio a

Dry-weight
ratio

Dry-weight
ratio Lines CRI b (100) CRI(200)

Brassica napus
N-343 0.98 0.96 1.94 0.90 2.84

N-127 1.10 1.04 2.14 0.69 2.83

Westar 0.95 0.83 1.78 0.67 2.45

N-503 0.89 0.78 1.67 0.47 2.14

N-119 0.89 0.75 1.63 0.48 2.12

Kizakinonatane 0.57 0.66 1.23 0.41 1.64

Kirariboshi 0.61 0.54 1.15 0.41 1.57

Brassica juncea
J-105 1.03 0.88 1.91 0.49 2.40
C-639 0.97 0.61 1.57 0.36 1.93
J-130 0.70 0.66 1.37 0.57 1.93
J-138 0.72 0.69 1.42 0.43 1.84
J-601 0.57 0.48 1.05 0.21 1.26
a The average of dry-weight (n = 3 to 6) in each salt-treatment was divided by the average at 0 mM
b CRI (cumulative ratio index) represents a cumulative value of dry-weight ratios

Table 18.5 Na uptake (mg/gɾdw) in salinity-tolerant and salinity-sensitive lines

0 mM 50 mM 100 mM 200 mM

N-119 11.3 30.8 44.1 53.2

Kizakinonatane 9.1 25.3 26.8 46.9

Kirariboshi 9.1 33.5 45.9 47.6

J-105 5.3 32.8 50.8 58.8

J-601 5.5 31.3 36.0 54.5

surveyed. A part of the B. juncea had died due to damage from cold and snow. The
B. napus cultivated in the affected wet rice fi elds had been damaged due to feeding
by swans, but had resumed good growth in early spring. This crop approached har-
vesting in mid-June to July.
Here we indicate a part of the data on comparative results of plant length and
yields obtained in the experimental cultivation plots (control upland fi eld, affected
upland fi eld, affected wet rice fi eld) for each of the B. napus lines. The data for the
control upland fi eld plot in the experimental fi elds of the Graduate School of
Agricultural Science, the affected upland fi eld plot at Sendai City Agricultural and
Horticultural Center, and the affected wet rice fi eld plot at wet rice fi elds at Arai,
Wakabayashi Ward, Sendai City are experimental results, and the “Tohoku
Agricultural Research Center” data are values from papers by the Tohoku
Agricultural Research Center.