Effects of boron deficiency on leaf photosynthesis and nonstructural carbohydrate concentrations of cotton during early growth.

In crop growth and development, boron (B) is an essential trace element. Boron deficiency is common in highly leached, acidic sandy soils of cotton (Gossypium hirsutum L.) growing regions in the world. Boron is particularly important in pollen germination and pollen tube growth resulting in successful fruit setting. Therefore, B deficiency during flowering and fruiting may significantly reduce boll retention, resulting in a low yield. A better understanding of the effect of B deficiency during the early growth of cotton on leaf photosynthesis and physiological characters can help us to make cotton production recommendation and to improve yield.