TY - GEN AU - Dadhwal,V.K. TI - Study of phenology, growth and yield in wheat in relation to environmental factors, especially photoperiod and temperature KW - Phenology KW - Yields KW - Wheat KW - Edrivironment KW - Temperature KW - Sowing KW - Varieties KW - Leaves KW - Data couection KW - Field experimentation ER -