| Title of Article |
Nutrient Uptake and Nutrient Use Efficiency of Cassava Genotypes with Different Starch Bulking Periods as Affected by Different Planting Dates |
| Date of Acceptance |
26 August 2020 |
| Journal |
| Title of Journal |
Journal of Plant Nutrition |
| Standard |
ISI |
| Institute of Journal |
Taylor and Francis Ltd. |
| ISBN/ISSN |
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| Volume |
|
| Issue |
44(4) |
| Month |
|
| Year of Publication |
2020 |
| Page |
580-599 |
| Abstract |
Information on macronutrient uptake and nutrient use efficiency (NUE) of cassava genotypes under different planting dates is limited. The aims of this study were investigated the responses of cassava genotypes to planting date for nutrient uptake and NUE and to identify superior genotypes for these traits. Three cassava genotypes (Kasetsart 50 (KU50), Rayong 11 (RY11) and CMR38-125-77) were planted in a randomized complete block design with four replications at four planting dates (20-Apr, 30-Jun, 5-Oct and 15-Dec 2016) and harvested after 12 months. Planting cassava on 20-Apr and 15-Dec produced the highest total crop nutrient uptake and nutrient uptake for storage roots. Whereas planting cassava on 5-Oct and 15-Dec with higher solar radiation, temperature, relative humidity and longer photoperiod during canopy establishment until high carbohydrates translocation and with lower temperature and shorter photoperiod during a dormancy period resulted in greater NUE for biomass and storage roots and nutrient harvest index for all genotypes and most elements. CMR38-125-77 and KU50 showed good performance in terms of total nutrient uptake across planting dates (1.45-38.31 g plant-1) for most elements. CMR38-125-77 seems to be the best genotype on the basis of high storage root dry weight, high NUE for both biomass (90.1-1,594.6) and storage roots (39.9-927.1) and nutrient harvest index (0.14-0.58) for almost all planting dates, except in planting date 20-Apr in which RY11 was the highest for these traits. The genotype identified is useful as parental source for further breeding programs to improve genotypes with high NUE and high storage root yield. |
| Keyword |
cassava breeding; crop nutrition; growing season; macronutrient; seasonal variation; stability |
| Author |
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| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ได้รับการตอบรับให้ตีพิมพ์ |
| Level of Publication |
นานาชาติ |
| citation |
false |
| Part of thesis |
true |
| Attach file |
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| Citation |
0
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Publication
Journal Publication
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