Effect of water soluble humic acid applied to potato foliage on plant growth, photosynthesis characteristics and fresh tuber yield under different water deficits.

The HA treatment showed highly significant ( P ≤ 0.01) effect on dry biomass, root/shoot ratio and photosynthesis parameters, improved the dry biomass above ground (DM-AG) by 14.12–36.63%, 11.62–36.26% and 7.85–20.85% over the whole growing season at water deficits of 45%, 60% and 75% of the field water holding capacity respectively in 2014

also in 132,142 other papers

Meanwhile, the effect of HA showed an increasing trend on the fresh tuber yield with increasing the water deficit demonstrating that crop plant growth was significantly affected by the water condition 25 , 26 .

also in 63,971 other papers

Nevertheless, these photosynthesis parameters are sensitive to unfavorable environmental conditions such as drought, salinity and heat 19 – 21 , and plant photosynthesis activity shows a decreasing trend with the increasing water stress 22 .

also in 47,180 other papers