Shadetolerance indices of maize: Selection and evaluation Effects of low-light stress on maize ear development and endogenous hormones content of two maize hybrids (Zea mays L.) with different shade-tolerance Evaluation and analysis of resistance to cucumber downy mildew under low light stress Effects of different sowing dates and  low-light stress at heading stage on the physiological characteristics and grain yield of hybrid rice. Effect of low-light stress on nitrogen accumulation, distribution and grains protein content of Indica hybrid Effects of Low-light Stress on Kernel Setting, and Carbon and Nitrogen Metabolism of Different Maize (Zea mays L.) Genotypes Effects of Low-light Stress on Male and Female Flower Development and Pollination and Fructification Ability of Different Maize (Zea mays L.) Genotypes