Average tuber yield ranged from 25.6 to 47.2 Mg ha −1, with the lowest yields occurring when heavy rainfall close to harvest increased yield loss to decay.
Plots treated with 5000 kg ha−1 lime + 2500 kg ha−1 gypsum had the highest mean fresh tuber yield of 9.5 Mg ha−1.
This was followed by plots treated with 2500 kg ha−1 gypsum which gave a mean fresh tuber yield of 7.2 Mg ha−1, plots treated with 5000 kg ha−1 lime followed with 6.8 Mg ha−1 while the lowest tuber yield was found in untreated plots which had 6.1 Mg ha−1.
JA with drought tolerance in this study means high tuber yield under drought conditions.
Mean differences in tuber yield, average stolon length and sugar or starch content between Lada and ST plants were analyzed for statistical significances using the paired t-test at P < 0.01 0.05 (NCSS 2007 software; NCSS, Kaysville, USA).
andigena, the former inducing higher percentage of tuberization, higher tuber yield, higher tuber numbers, and earlier vine maturity [ 24– 28].
tuberosum (mostly T-type cytoplasm) is characterized by higher percentage of tuberization, higher tuber yield, higher tuber numbers, and earlier vine maturity compared with that of S. tuberosum ssp.
HQT-f, another SSCP fragment originating from hydroxycinnamoyl quinate CoA transferase, increased tuber yield on average by 35.9 dt/ha.
The means of the normalized root mean square error calculated for soil water content, dry matter during crop growth season and tuber yield for all irrigation treatments in validation years were 0.164, 0.157 and 0.046, respectively, indicating the ability of AquaCrop in simulation of soil water content and crop production.
Sweet potato tuber yield was 39.7 kg wet weight, or an average of 7.4 kg m−2, and 7.7 kg dry weight of tubers since dry weight was about 18.6% wet weight.
