z-logo
open-access-imgOpen Access
Physical-physiological quality and early performance of sorghum plants under different boron doses via seed
Author(s) -
Vanessa Aparecida Pereira Batista,
Henrique Duarte Vieira,
José Inácio Coelho Pires,
Laísa Zanelato Correia
Publication year - 2021
Publication title -
semina. ciências agrárias
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.268
H-Index - 25
eISSN - 1679-0359
pISSN - 1676-546X
DOI - 10.5433/1679-0359.2021v42n6p3185
Subject(s) - sorghum , randomized block design , seedling , shoot , boron , boric acid , agronomy , germination , horticulture , sowing , greenhouse , biology , chemistry , organic chemistry
Boron (B) deficiency is commonly found in tropical crops, among which sorghum stands out for its limited yield under B shortage. However, as a micronutrient, the range between its adequate and toxic levels is narrow, thus fertilization should be cautiously applied. Our goal was to evaluate the physiological and physical quality, as well as early performance, of grain sorghum seedlings under different B doses applied via seeds. Treatments consisted of six doses of boric acid (0.0, 2.5, 5.0, 7.5, 10.0, and 12.5 g Kg-1 seeds) plus a control (uncoated seeds). Boron doses were applied to seeds by coating, in which dolomitic limestone and glue were used for pellet formation. Coated seeds were assessed for physical, physiological, and nutritional characteristics in the laboratory, and early seedling performance was evaluated in a greenhouse. Seed tests were carried out in a fully randomized design, while seedling evaluations were carried out in a randomized block design. Boron application to seeds had no significant effect on seed physical characteristics, despite increases in coated seed sizes. Boron doses had a negative effect on the length and dry mass accumulation of both plant shoot and root. Seed-applied B accumulated mainly in roots and significantly interfered with Ca and Mg accumulations in sorghum seeds, shoots, and roots.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.
Having issues? You can contact us here