Phosphate fertilization on nutritional status and growth of upland rice cultivars

TY - JOUR

T1 - Phosphate fertilization on nutritional status and growth of upland rice cultivars

AU - Crusciol, C. A. C.

AU - Momesso, L.

AU - Nascimento, C. A. C.

N1 - 6777, ME; Data archiving: property of and archived at UNESP, Brazil

PY - 2019/8/9

Y1 - 2019/8/9

N2 - Differences among rice genotypes demonstrate that root system of upland rice cultivars influences P acquisition and growth performance. We studied root and shoot growth and nutrition of traditional and modern cultivars of upland rice as affected by P availability (three rates). At the highest P rate, the greatest dry mass was obtained with Maravilha, which was on average 180% higher than Caiapo. The modern has exceeded the traditional in growth performance, besides accumulating more nutrients. Maravilha was more efficient in root and shoot growth, and nutrient absorption with P supply, using less photoassimilates for root growth. Traditional cultivars of upland rice may develop better than modern cultivars in low P availability, with facilitates its adaptation in soils with this condition. Modern cultivars are more responsive to P fertilization, which demonstrates a better option in a cropping system with P supply to aim at high yield.

AB - Differences among rice genotypes demonstrate that root system of upland rice cultivars influences P acquisition and growth performance. We studied root and shoot growth and nutrition of traditional and modern cultivars of upland rice as affected by P availability (three rates). At the highest P rate, the greatest dry mass was obtained with Maravilha, which was on average 180% higher than Caiapo. The modern has exceeded the traditional in growth performance, besides accumulating more nutrients. Maravilha was more efficient in root and shoot growth, and nutrient absorption with P supply, using less photoassimilates for root growth. Traditional cultivars of upland rice may develop better than modern cultivars in low P availability, with facilitates its adaptation in soils with this condition. Modern cultivars are more responsive to P fertilization, which demonstrates a better option in a cropping system with P supply to aim at high yield.

KW - international

U2 - 10.1080/01904167.2019.1628971

DO - 10.1080/01904167.2019.1628971

M3 - Article

SN - 0190-4167

VL - 42

SP - 1516

EP - 1528

JO - Journal of Plant Nutrition

JF - Journal of Plant Nutrition

IS - 13

ER -