The aim of this study was to evaluate the quality patterns Switenia macrophylla, Cedrelinga cateniformis and Ochroma pyramidale seeds seedlings in response restoration. seed viability test performed using 1 % tetrazolium (2,3,5-triphenyl chloride) during three staining times percentage vigor levels were considered according topological pattern. Germination speed, germination capacity, morpholog...

Abstract This study aimed to evaluate the effect of fruit maturation stages and pre-germination treatments with plant regulators on physiological quality seeds cv. BRS Mel do Cerrado. Two experiments were carried out, germination emergence, installed in a completely randomized design 3 x 2 factorial arrangement, three (1-partially ripe fruits; 2-fully fruits 3-senescent fruits) two (1. [GA4+7 +...

Poor emergence resulting in inadequate stand establishment is a major problem associated with direct-seeded rice production, especially for semidwarf cultivars. In order to gain information on the problem, plant type related to gibberellic acid (GA3) and seeding depth was studied. A total of 21 cultivars including 9 semidwarfs and 12 talls had seed treated with GA3 at 25 parts per million (ppm)...

The use of seeds with high physiological quality allows rapid growth and establishment seedlings in the field to be obtained. Therefore, accuracy information obtained during determination is great importance. objective was generalized linear models, investigating which link function (Probit, Logit Complementary log-log) suitable predict T50 uniformity germination soybean corn seeds. To perform ...

Hesperozygis ringens (Lamiaceae), popularly known as espanta-pulga, is a threatened species endemic to rocky and sandy regions of the Pampa biome. One factor that can influence low number individuals seed germination rate influenced by temperature and/or light. Thus, objective this study was evaluate light on H. ringens. The seeds two lots were sown paper substrate maintained in BOD chambers at...

This research has been done to examine the effect of bio-priming on germination parameters related to seeds of canola cultivar (Hayola 401) under high salinity as factorial in seed laboratory of Shahed University based on a Completely Randomized Design (CRD) in three replications. Experimental factors included bio-primin...

Putrescine plays a distinct role in various types of biological functions all living organisms, as well environmental stress. The aim the study is to effect exogenous putrescine on physiological condition rice seeds investigated. Salt treatment resulted reduction speed germination, germination energy, energy percentage, final shoot and root length, plant dry weight, where proline content was re...