The important causes for lack of improvement in production and low chickpea yields are inappropriate crop management, variety-based un-optimized planting density, variety not suitable for machine harvest and losses during harvesting operations. In this study, we hypothesized that increased planting density can compensate for the yield reduction in tall chickpea genotypes by accomodating more plants per unit area than existing genotypes and improving the plant architecture to facilitate mechanical harvesting. We analyzed variations among five genotypes (ICCV-11601, ICCV-11602, ICCV-11603, ICCV-11604 and JG-11) for dry matter production, partitioning, and yields in response to planting densities (33.3–46.6 plants m⁻²) at International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, Telangana, India. In general, higher dry matter production and partitioning was observed in the tall/erect genotypes than semi-erect genotype. The higher dry matter was produced by genotype ICCV-11604. In the case of planting density, an increase in planting density from 33.3 to 46.6 plants m⁻² decreased the dry matter production and its partitioning in different parts. The normal planting density of 33.3 plants m⁻² observed higher dry matter per plant. The interaction of JG-11 × 40% higher density of 46.6 plants m⁻² recorded maximum seed yield (3048 kg ha⁻¹). However, the tall genotype ICCV-11604 × 46.6 plants m⁻² interaction recorded higher seed yield (2840 kg ha⁻¹) than JG-11 × normal density of 33.3 plants m⁻² (2666 kg ha⁻¹). The increase in planting density could compensate for the yield reduction in tall chickpea genotypes and facilitate mechanical harvesting to reduce the drudgery on scarce labour and save time and cost.

产量缺乏改善和鹰嘴豆产量低的重要原因是作物管理不当，基于品种的未优化种植密度，不适合机器收获的品种以及收获期间的损失。在这项研究中，我们假设增加的种植密度可以通过在单位面积上容纳比现有基因型更多的植物，并改善植物结构以促进机械收割，从而弥补高鹰嘴豆基因型的产量下降。我们分析了五种基因型（ICCV-11601，ICCV-11602，ICCV-11603，ICCV-11604和JG-11）之间的变异，以适应种植密度（33.3–46.6植株m ^-2）的干物质生产，分配和产量），位于印度特兰甘纳邦帕坦彻鲁的国际半干旱热带作物研究所（ICRISAT）。通常，在高/直立型基因型中观察到的干物质产量和分配高于半直立型基因型。基因型ICCV-11604产生了较高的干物质。在种植密度的情况下，种植密度从33.3植株增加到46.6植株m ^-2减少了干物质产量及其在不同部位的分配。正常种植密度为33.3株m ^-2，观察到每株植物的干物质更高。JG-11的相互作用×46.6植物m ^-2的高密度40％记录了最大的种子产量（3048 kg ha ^-1）。但是，高基因型ICCV-11604×46.6植物m ^-2交互作用记录的种子产量（2840 kg ha ^-1）高于JG-11×33.3 m ² （2666 kg ha ^-1）植物的正常密度。种植密度的增加可以弥补高鹰嘴豆基因型产量的下降，并有利于机械收割，以减少劳动力稀少带来的麻烦，并节省时间和成本。