Seed Vigour and Invigoration

Abstract

Seed vigour is an important aspect of seed quality. It is a quantitative trait which is responsible for overall seed performance in terms of rate and uniformity of seed germination, seedling growth, emergence ability under unfavourable environments and post storage performance. Seed vigour is controlled by genetic factors, initial seed quality, production environments, harvesting and storage conditions. Seed vigour tests provide a more sensitive index of seed performance per se than the germination test. Efforts have been focused on developing novel or improving existing methods of vigour estimation in different crops. The vigour tests are tools routinely used for in-house seed quality control programs, especially for field and vegetable crops. Some treatments can improve seed vigour, although the treatment effects are more evident under sub-optimum than optimum growing conditions. This chapter deals with different aspects of seed vigour and its effects on plant growth and discusses physiological and biochemical parameters to understand underlying mechanisms.

Reviving the Resilient: Exploring Pre-Dormancy Breaking Treatments for Acacia nilotica (L.)

“…The control seeds were discovered to have the lowest vigour index, seedling growth, and seed germination rates at the same period. In several crops, seed priming has been shown to have positive impacts on stand establishment, quick, uniform, and increased germination, improved seedling vigour and growth under a wide range of environmental conditions, and a decrease in phytochromeinduced dormancy [19][20][21][22]. When seeds are primed for germination, physiological tests have shown that their metabolic activity is boosted [23].…”

Impact of Foliar Application of Plant Growth Regulators in Soybean [Glycine max (L.) Merill)] on Seed Quality and Seedling Establishment

“…The seed vigor index measures overall seed performance, including the rate and uniformity of seedling growth, emergence in unfavorable conditions, and post-storage viability. High temperatures during seed development and maturation can greatly reduce seed vigor, resulting in lower seed quality [18]. High temperatures can cause significant physiological damage to seeds, resulting in reduced seed vigor.…”

Perlakuan Hidrasi-Dehidrasi terhadap Vigor Dua Lot Benih Kacang Bambara (Vigna subterranean L. Verdc.)

“…Perlakuan perendaman dalam air 12 jam lalu dikeringkan 4 jam dalam oven suhu 38-40 ˚C tidak berbeda dengan taraf lainnya diduga perendaman dengan pengunaan aerator belum berfungsi secara maksimal disebabkan volume air dalam perendaman benih masih dalam batas normal benih untuk mampu melakukan respirasi dalam air. Menurut Basu (1994) manfaat dari perlakuan hidrasi-dehidrasi yang yaitu dapat memperbaiki sistem enzimatik seluler yang telah menurun aktivitasnya akibat usia benih selama penyimpanan sebelumnya, dan dapat meminimalisasi reaksi radikal bebas dan reaksi peroksidasi lipid dalam benih yang mengakibatkan proses kemunduran benih.…”