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Technology package DROUGHT TOLERANT SWEET POTATO VARIETIES
Summary The World Bank funded Drought Response Project worked on a selection of staple crops for drought tolerance and high yields and came up with recommended sweet potato varieties for the lowlands and highlands. Varieties for the lowlands were chosen on the following basis: Drought tolerant High yielding Yields of 11 – 16 tonnes/ ha or 1.1 – 1.6 kg/ m2 Yield was reduced by not more than 30% under dry conditions NARI Nambis Kaukau 1, 2 and 3 are early maturing Dry conditions = planting during dry season at Laloki and withholding irrigation for six weeks Sweet potato varieties for the Highlands were selected on the following basis: All varieties are drought tolerant All mature early • Yields of 12 - 22 tonnes/ha Dry conditions = covering plots with plastic sheet to keep moisture out for nine weeks.
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NARI NAMBIS KAUKAU 1 (B 11 PT) Root skin colour: White Root flesh colour: White Time to maturity: 3-4 months Flesh texture when boiled: Firm Taste: Not sweet
NARI NAMBIS KAUKAU 2 (SI 278) Root skin colour: White Root flesh colour: White Time to maturity: 3-4 months Flesh texture when boiled: Soft Taste: Intermediate sweet
NARI NAMBIS KAUKAU 3 (NUG5) Root skin colour: Dark purple Root flesh colour: Purple/white patches Time to maturity: 3-4 months Flesh texture when boiled: Firm Taste: Not sweet
NARI NAMBIS KAUKAU 4 (K9) Root skin colour: Pink Root flesh colour: White Time to maturity: 4 - 5 months Flesh texture when boiled: Firm Taste: Sweet
NARI Hailans Kaukau 1 (FLAWA) Root skin colour: Red Root flesh colour: White Time to maturity: 5 months Flesh texture when boiled: Intermediate Taste: Sweet
NARI Hailans Kaukau 2 (Okome) Root skin colour: White Root flesh colour: White Time to maturity: 5 months Flesh texture when boiled: Firm Taste: Not sweet
NARI Hailans Kaukau 3 (Mabol) Root skin colour: Orange Root flesh colour: Orange Time to maturity: 5 months Flesh texture when boiled: Soft Taste: Sweet
NARI Hailans Kaukau 4 (# 469) Root skin colour: White Root flesh colour: White Time to maturity: 5 months Flesh texture when boiled: Soft Taste: Sweet
NARI Hailans Kaukau 5 (# 714 – Turupa) Root skin colour: White Root flesh colour: White Time to maturity: 5 months Flesh texture when boiled: Soft Taste: Sweet
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