A high level of contamination the seeds sunflower plants with phytopathogenic micromycetes can lead to a significant decrease in yield this valuable crop, oiliness seeds, deterioration its sowing qualities, and an increase quantitative qualitative losses crop during storage. As result vital activity microorganisms on plant both qualities (germination energy, germination, viability productivity)...

Effects of four tropical plant (Aframomum melegueta, Zanthoxylum zanthoxyloides, Piper guineense and Eugenia aromatica) were investigated under tropical laboratory storage conditions for the protection of cowpea seeds against insect infestation. The plant materials were pulverised into fine powder after air drying and admixed with 20 g of cowpea seeds at the ...

the most widely used machine for precision sowing of cucumber and sorghum seeds is vacuum type. the performance and distribution accuracy of the vacuum type metering unit is of great importance. therefore, the experiments at three pressures of 25, 35, 45 mbar and two level of forward speed 3 to 4.5 km/h and 6 to 8.5 km/h were conducted and multiple planting, feeding quality and miss planting we...

Caesalpinia echinata seeds stored in laboratory environmental conditions lose their viability in one month whilst under low temperatures germination is maintained for 18 months of storage. These seeds are tolerant to desiccation, keeping their viability up to 0.08 gH2O.gDW-1. Since soluble carbohydrates are believed to be involved with desiccation tolerance and seed storability, the aim of this...

HIGHLIGHTS The harvested T. caraiba seeds maintain high viability for 360 days of storage. Seeds at 42 DAA have higher quality. SOD and CAT activity is not related to the deterioration process under POX increases in response seed storage period.

sesamol is a sesame lignan. sesame lignans have multiple functions, including antioxidant activity and also seem to have potential as a source of phytostrogens. this study was condncted to evaluate sesamol contents of 7 brands of iranian sesame seeds (sesamum indicume l.). the brands were named karaj 29, darab 14, ultan, dezful, varamin, branching naz, and nonbranching naz. after method validat...

Seed viability monitoring, usually through a germination test, is a key aspect of genebank management; a low viability result triggers the regeneration of an accession in order to ensure that the genetic diversity of the accession is conserved and available for distribution. However, regular viability monitoring of large collections is costly in terms of seeds, labour and other resources. Geneb...

ABSTRACT An essential factor for the formation of a native orchid seed bank is identification viability stored seeds. This study aimed to determine methodology optimizing tetrazolium test, in seeds two Orchidaceae medicinal species Brazilian Savanna. Seeds Miltonia flavescens Lindl. and Schomburgkia crispa were submitted three pre-conditioning conditions: no soaking (control), sucrose solution ...