Foliar applications of calcium (Ca) and boron (B) could improve the fertilization of flowers and enhance the wheat yield. The effects of foliar spray of Ca and B on plant growth, grain yield and yield components of wheat were investigated in this study. Treatments consisted of 0, 1.8, 3.6, and 7.2 L ha -1 application of chelated fertilizer containing 125 g L -1 of Ca and 6 g L -1 of B (Omega Cabor II ® ), divided into two spray, the first one at tillering and the second at early bloom. The results revealed that foliar spray of Ca and B did not affect the stem diameter, peduncle length, spike length, hectoliter weight and thousand-grain mass of wheat. Maximum plant height and flag leaf insertion height was recorded with 4.0 L ha -1 application of foliar fertilizer (4% increase over control). The 7.2 L ha -1 application of foliar fertilizer increased significantly the number of spikelets per spike (9%), number of grains per spike (24%), grain mass per spike (28%), spike mass (14%), number of spikes m -2 (32%) and grain yield (30%) compared to the control. Foliar application of Ca and B improves growth, fertilization of flowers and the number of fertile tillers of wheat plants resulting in higher grain yield.
The evaluation of seed physiological quality is fundamental to the success of the agricultural production system. Methods that enable rapid evaluation of seed physiological quality are of great interest in the quality control of producing companies. This study aimed to evaluate the efficiency of potassium leaching test in the evaluation of the wheat seed physiological quality, seeking compared to other methods to differentiate physiological quality of seed lots. A completely randomized design with four replications of 50 seeds each was used. Five wheat seed lots of the cultivar BRS 331 were submitted to germination test (8 days), first count of germination test (four days), low temperature germination test (5 °C/7 days), accelerated aging test (43 °C/48 h) in distilled water (100% RH), electrical conductivity test (50 seeds into 50 mL of water; at 25 °C for 24 h), potassium leaching (50 seeds into 75 mL of water; at 25 °C for 2 h), and seed water content. The evaluation of seed physiological quality by the accelerated aging test and potassium leaching test were the methods most appropriate to separate of wheat seed lots in different classes of physiological potential.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.