germination

[‚jer·mə′nā·shən]

(botany)

The beginning or the process of development of a spore or seed.

(petrology)

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Germination

the ability of a seed to yield normal sprouts after a set period of time in defined sprouting conditions. In the USSR seed germination is defined by state seed inspection in controlled seed analysis following a method prescribed by the All-Union State Standard (GOST 12038-66). The number of normally sprouted seeds is expressed as a percentage of the total number of seeds taken for analysis. In defining the usefulness of seeds for planting, germination is one of the most important qualities. This is of great productive importance. Seeds with high germination rapidly and conceitedly yield shoots, guaranteeing large harvests under proper conditions. High seed standards are required for norms of germination, so that first-class seeds of the basic grain crops except for hard wheat must have a germination not lower than 95 percent, and hard wheat must have one not lower than 90 percent. Seeds that do not meet the standard may not be used for planting. Germination depends to a great extent on the techniques of cultivation, method of harvesting, and storing conditions.

M. K. FIRSOVA

Mentioned in

References in periodicals archive

The data of germination percentage, seedling length, and seedling dry matter were used to calculate the seedling vigor and drought tolerance indices.

Seed priming improves the germination and growth rate of melon seedlings under saline stress/Condicionamento de sementes melhora a germinacao e a taxa de crescimento das plantulas de melao sob estresse salino

Germination percentage (%)###77.0###98.5###90.9###0.89###<0.01

PREDICTION OF VIABILITY AND EMERGENCE CAPACITY OF SAFFLOWER SEED LOTS

The aim of this work was to study the germination behavior of dicarpic B.

Germination constraints of dicarpic cypselae of Bidenspilosa L./Restricoes a germinacao de cipselas dicarpicas de Bidens pilosa L

Other factors that may have a direct influence on the germination process are light and temperature, especially in the emergence of seedlings under field conditions.

Recovery and germinative response of Amaranthus deflexus L. seeds under different levels of water stress and luminosities

Thus, the objective was to determine the substrate, temperature, substrate moistening level and time of count for the germination test of E.

Germination test of Eucalyptus phaeotricha seeds/Teste de germinacao de sementes de Eucalyptus phaeotricha

stans with an internal moisture of 7.2 % stored at laboratory temperature (~20[degrees]C) for four years showed no significant decrease in germination (Pelton, 1964), so they appear to be resistant to desiccation.

Germinacion y conservacion de semillas de la especie pionera, Tecoma stans (Bignoniaceae), del bosque seco tropical de Colombia

germination strength is 80 per cent or above, Dr Zahid said.

CCRI gives tips to farmers to check seeds' germination strength at home

The seed is better and ready for sowing if its germination strength is 80 per cent or above, Dr Zahid said.

CCRI gives tips to farmers to check seeds' germination strength at home

= Cumulative Percent Germination on each day/ number of days after germination elapsed.

Development of Novel Protocol to [Al.sup.3+] Stress Tolerance at Germination Stage in Indica Rice through Statistical Approaches

Mean germination success, time to reach 50% germination ([T.sub.50]) and time to first germination (lag), were calculated for each treatment.

Temperature and salinity effects on germination of three Victorian saltbushes (Amaranthaceae)

In the present study nutrient priming has been evaluated in four maize varieties under controlled laboratory and pot experiments for vigour enhancement in terms of germination percentage, mean germination time (days), vigour index, root/shoot ratio and dry matter production.

Nutrient priming in different maize cultivars and evaluation of vigour improvement under controlled conditions