Comparison of Short-Duration and Long-Duration Rice Cultivars Cultivated in Various Planting Densities

The selection of high-yielding, short-duration rice cultivars is essential for the double-rice cropping system. High hill density could be achieved with less labor under machine transplanted conditions. Therefore, dense planting more practical machine-transplanted rice. While few studies have been conducted to certify feasibility cultivar combined in current study was executed determine effects on yield attributes and grain mechanically A field experiment comprises two treatments—i.e., Lingliangyou104 cultivated at a high (SDH) long-duration Taiyou390 low (LDL)—were 2018 2019 late seasons. results showed that SDH exhibited 17% 19% higher panicle number unit, 26% 24% spikelet filling, 8% weight, 21% 11% harvest index, consequently 12% 4% 13 15 days shortened growth duration compared LDL 2019, respectively. data revealed difference between mainly due index reasonable dry matter distribution SDH, which conducive improving components increasing yield. As result, feasible strategy