Growth characteristics, yield and quality of some vegetable amaranths (Amaranthus spp.) cultivated in Okinawa, Japan
2015
Ohshiro, M. (Kagoshima Univ., Kagoshima (Japan). United Grad. Sch. of Agric Sci.) | Akamine, H. | Hossain, M.A. | Nakamura, I. | Tamaki, M. | Nose, A.
Growth characteristics, yield and quality of seven leafy-vegetable amaranth lines were evaluated in detail for selecting suitable line(s) in Okinawa. Among the seven lines, three Bangladesh lines Bangladesh B (BB), Bangladesh C (BC) and Bangladesh Red (BR); one India Bengal line (IB); one Vietnam line (V); one Taiwan line (TW); and one domestic line Biam Tricolor (BT) were evaluated. BB, BC, BR and IB grew faster and had higher plant height than the other lines. Leaf number and leaf area per plant were largest in BC followed by BB and BR. BB, BC and BR had heavier stem weight than leaf weight, whereas V, TW and BT had heavier leaf weight than stem weight. Total shoot weight was the heaviest in BC followed by BB in all the experiments. Potassium (K) content of leaf was higher in TW and BT. Calcium (Ca) content was higher in BB, BC and BR, and magnesium (Mg) content was higher in BB, BC, BR and TW. Total sodium (Na) and K contents per plant were the highest in BC followed by BB, total Ca, Mg and crude protein contents were the highest in BB followed by BC, and total iron (Fe) content was the highest in BB followed by V and BC. Total ascorbic acid content was the highest in BB followed by TW, and was similar in IB, V and BC. Considering growth characteristics, yield and total value of quality parameters, the lines BB and BC could be suitable for cultivation in Okinawa prefecture.
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