Effects of MnSO4 on grain output, protein and Mn content of quinoa strains (Chenopodium quinoa Willd.)

Abstract

Quinoa is a new crop with great potential in the world. Micronutrients are vital components for balances both growth and development in plants. An experiment was designed for the sake of researching the impacts of MnSO4 on output and quality parameters of Quinoa strains in Wuhan. Four repetitions stochastic complete block design is used for the partition layout. Major zones were MnSO4 (contains 28% pure manganese) (2, 4 and 6 g·m−2), and sub-zones were Quinoa cultivars (L-1, L-2 and L-3). The meaningful influence of MnSO4 on the number of fertile ears, the amount of seeds in each ear, the weight of a thousand seeds, grain output, the contents of proteins and manganese in grain. The significant influence of cultivar on number of fertile ears, the weight of a thousand grains, grain output and protein content. The highest values of fertile ear, amount of grain, the weight of a thousand grains, harvest index, grain output, the contents of grain proteins and Mn were achieved in applying 6 g MnSO4 per m2. In addition, the highest amount of fertile ears, amount of grains per ear, grain harvest and grain manganese content were related to“L-3”cultivar. The results show that cultivation of“L-3”cultivar and application of 6 g MnSO4 per m2 is recommended for Wuhan.