The challenging climatic conditions and scarcity of water availability have a significant impact on rice production in South Asia. Presently, rice is grown by the conventional transplanting method, which is associated with several problems like deterioration of soil health, labor scarcity and lowering of the water table. The current scenario demands some substitutive planting methods and the development of rice varieties that require less water and favor mechanization. Therefore, field experiments were carried out for two consecutive seasons to examine the responses of fifteen rice varieties under wet direct seeding (WDS), flooded transplanted rice (FTR) and the system of rice intensification (SRI) for grain yield, component variables and quality traits. The examined varieties showed a significant variation for all the studied variables among the three planting methods. WDS recorded a reduced mean value for tillers per plant, panicle length, panicle weight, spikelets per panicle, thousand grain weight, biological yield per plant and grain yield per plant by 26.76%, 7.48%, 12.72%, 16.07%, 3.20%, 3.79%, 15.13% and 25.03%, respectively, While, SRI showed an increased mean for tillers per plant, panicle length, panicle weight, spikelets per panicle, thousand grain weight, biological yield per plant and grain yield per plant by 19.02%, 1.01%, 8.33%, 8.38%, 1.37%, 13.60% and 16.23% compared to FTR. Among the varieties, CSR 30 showed minimum reduction under WDS, whereas Pusa Basmati 1121 recorded maximum increment under SRI for tillers per plant, panicle length, panicle weight, spikelets per panicle, thousand grain weight, biological yield per plant and grain yield per plant compared to FTR. Further stepwise regression identified tillers per plant, biological yield per plant, panicle length, days to maturity, thousand grain weight in WDS and tillers per plant, biological yield per plant, days to maturity and thousand grain weight in SRI contributed most to grain yield variation and needed to be focused greatly for yield enhancement in respective planting methods.

充满挑战的气候条件和水资源短缺对南亚的水稻生产产生重大影响。目前，水稻种植采用传统的插秧方法，存在土壤健康恶化、劳动力短缺和地下水位下降等问题。当前的情况需要一些替代种植方法，并开发需水量少、有利于机械化的水稻品种。因此，连续两个季节进行了田间试验，研究了15个水稻品种在湿直播（WDS）、淹插稻（FTR）和水稻强化栽培（SRI）系统下对粮食产量、组成变量和品质性状的响应。所检查的品种在三种种植方法中的所有研究变量均显示出显着差异。WDS 记录的单株分蘖、穗长、穗重、每穗小穗、千粒重、单株生物产量和单株籽粒产量的平均值分别降低了 26.76%、7.48%、12.72%、16.07%、3.20%、3.79%、15.13% 和 25.03%，而 SRI 显示单株分蘖、穗长的平均值增加，与FTR相比，穗重、穗粒数、千粒重、单株生物产量、单株籽粒产量分别提高19.02%、1.01%、8.33%、8.38%、1.37%、13.60%和16.23%。在这些品种中，CSR 30 在 WDS 下表现出最小的减少，而 Pusa Basmati 1121 在 SRI 下记录了每株分蘖、穗长、穗重、每穗小穗数的最大增量，千粒重、单株生物产量以及单株籽粒产量与 FTR 的比较。进一步逐步回归确定了单株分蘖、单株生物产量、穗长、成熟天数、WDS 中的千粒重和单株分蘖、单株生物产量、成熟天数和 SRI 中的千粒重对谷物产量变化的影响最大，需要重点关注以提高各自种植方法的产量。