珍珠粟(Pennisetum iy(?)oi(?)es)是印度干旱地区最重要的粮食和饲用作物。目前,印度已推广了几个优良的杂交种,使这种作物的产量得到显著提高。为了实现这种异花授粉作物的高产和改良,对杂种优势的研究应引起特别重视。但环境因子对珍珠粟杂种优势的影响的研究,过去还很少见。杂种优势的利用广度 Pennisetum iy (?) Oi (?) Es is the most important food and forage crop in arid regions of India. At present, India has promoted several excellent hybrids, which have resulted in a significant increase in the yield of this crop. In order to achieve the high yield and improvement of this cross-pollination crop, the study of heterosis should pay special attention. However, the study of the influence of environmental factors on the heterosis of pearl millet was rare in the past. Breadth of utilization of heterosis