不同灌溉模式和肥料处理对再生稻再生芽生长和再生季产量形成的影响

毛顺鑫, 肖无为, 张作林, 黄家达, 王飞, 黄见良, 彭少兵, 崔克辉

Effects of Different Irrigation Patterns and Fertilizer Managements on the Growth of Axillary Buds and Yield Formation of Ratoon Season in Ratoon Rice

Mao Shunxin, Xiao Wuwei, Zhang Zuolin, Huang Jiada, Wang Fei, Huang Jianliang, Peng Shaobing, Cui Kehui

表5 再生芽生长、再生季氮积累、干物质积累和再生季产量间关系

Table 5 The correlations among bud growth, nitrogen and dry matter accumulation and grain yield of the ratoon season

指标 Index 芽长 Bud length 活芽数 Bud number 芽重 Bud dry weight 再生力 Ratooning ability 再生季产量 Grain yield of the ratoon crops 头季收获时 稻桩干重 Stubble dry weight 再生季当季积累干重 Dry matter accumulation during the ratoon season 再生季总干重 Total dry weight of the ratoon crops 稻桩氮浓度Stubble N concentration 0.801** 0.650 0.794* 0.880** 0.905*** 0.624 0.675* 0.717* 稻桩氮素含量Stubble N content 0.777* 0.590 0.783* 0.913*** 0.891** 0.850*** 0.698* 0.801** 芽氮素浓度Bud N concentration -0.904*** -0.744* -0.778* -0.640 -0.700* -0.335 -0.304 -0.342 芽氮素含量Bud N content 0.772* 0.759* 0.940*** 0.815** 0.759* 0.591 0.459 0.538 再生季当季氮素积累量 N uptake during the ratoon season 0.742* 0.613 0.688* 0.733* 0.724* 0.307 0.686* 0.633 再生季总氮积累 Total N uptake of the ratoon crops 0.854** 0.666* 0.840** 0.954*** 0.934*** 0.755* 0.775* 0.834** 头季收获后稻桩干重 Stubble dry weight 0.524 0.378 0.566 0.761* 0.655* 0.628 0.788* 再生季当季积累干重 Dry matter accumulation during the ratoon season 0.467 0.318 0.453 0.832** 0.742* 0.628 0.974*** 再生季总干重 Total dry weight of the ratoon crops 0.523 0.362 0.525 0.880** 0.779* 再生季产量 Grain yield of the ratoon crops 0.905*** 0.641 0.809** 0.962*** 再生力Ratooning ability 0.838** 0.661* 0.835**