There are three things which are tested in seed:
- Purity _ how much debris are present with seeds
- Germination percentage
- Seed availability
Suppose we have collected some seeds, naturally some debris will come with then suppose their weight is 100 kg. Now clean the seeds and weigh the seeds again. Let the weight be 50 kg which implies that purity of the seeds is 50%.
It can be shown by the following formula:
WO = weight of seeds + debris
W1 = weight of debris
TEST FOR GERMINATION PERCENTAGE:
For Small Seeds:
For this purpose, we take the file clay plate and put in a dish of water which has a number of depressions and is covered with glass to maintain moisture.
(Fig showing laboratory test for seed test)
For Large Seeds:
For this purpose, a shallow box is filled with sand, sawdust or light soil. Vermiculate mica is also used nowadays and then germination is tested.
TEST FOR SEED VIABILITY:
By Direct Inspection:
Put the seed on the table and if the seed has an embryo, it is viable otherwise not.
Put the seed in water and if the seed is viable, it will settle down.
Put the seed in the colored chemical. The seeds which are dead become colorful and others remain the same.
For correction and improvements please use the comments section below.
NJMH is working as Deputy Conservator of Forests in Balochistan Forest & Wildlife Department (BFWD). He is the CEO of Tech Urdu (techurdu.net) Forestrypedia (forestrypedia.com), Majestic Pakistan (majesticpakistan.pk), All Pak Notifications (allpaknotifications.com), Essayspedia, etc & their YouTube Channels). He is an Environmentalist, Blogger, YouTuber, Developer & Vlogger.