Quercetin alleviates seed germination and growth inhibition in Apocynum venetum and Apocynum pictum under mannitol-induced osmotic stress

Aqueous leachates obtained from soaking 0.5-cm2 pieces of flexible polyvinyl chloride (PVC) sheets in water for 1, 4, or 24 weeks and applied to various crops in sand culture exhibited no effect on seed germination but severely inhibited the growth, measured as fresh and dry weights of foliage, of all the crop species tested. In general, growth inhibition of various crops by PVC leachates of 4- and 24-week duration was significantly greater than that caused by the leachates of 1-week duration. There was, however, no significant difference in growth inhibition by PVC leachates of 4- and 24-week duration. Growth of broadleaved species, cucumber (Cucumis sativus L.), faba bean (Vicia faba L.), pea (Pisum sativum L.), sugar beet (Beta vulgaris L.), and tomato (Lycopersicum esculentum Mill.), was inhibited more than in the monocot species, com (Zea mays L.). Residues from PVC leachates persisted in sand and caused severe growth inhibition of all crop species tested for two subsequent plantings.

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Response of wheat genotypes to osmotic stress in terms of seed germination and growth of seedling

Idesia (Arica) ◽

10.4067/s0718-34292014000200008 ◽

2014 ◽

Vol 32 (2) ◽

pp. 57-63

Author(s):

Masoud Ezzat-Ahmadi ◽

Ahad Madani ◽

Abdolreza Alimohammadi

Keyword(s):

Seed Germination ◽

Osmotic Stress ◽

Wheat Genotypes ◽

Germination And Growth

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Volatile Monoterpenes as Potential Parent Structures for New Herbicides

Weed Science ◽

10.1017/s0043174500057672 ◽

1993 ◽

Vol 41 (1) ◽

pp. 114-119 ◽

Cited By ~ 70

Author(s):

Steven F. Vaughn ◽

Gayland F. Spencer

Keyword(s):

Seed Germination ◽

Growth Inhibition ◽

Essential Oils ◽

Seedling Growth ◽

Weed Seed ◽

Weed Species ◽

High Germination ◽

Annual Weeds ◽

Germination And Growth

Eighteen volatile monoterpenes, which are among the major constituents of essential oils from plants, were screened for phytotoxicity to several crop and weed species. Several monoterpenes containing an oxygen function severely inhibited germination of four different annual weeds while concurrently displaying little effect on soybean germination. Soybeans varied in their sensitivity to various monoterpenes (measured by seedling growth), with α-terpineol and geraniol selectivity inhibiting weed seed germination while having little or no effect on soybeans. All of the monoterpenes tested exhibited relatively high germination and growth inhibition to corn and wheat.

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Influence of Rye (Secale cereale) Plant Residues on Germination and Growth of Three Triazine-Resistant and Susceptible Weeds

Weed Technology ◽

10.1017/s0890037x00028621 ◽

1994 ◽

Vol 8 (4) ◽

pp. 744-747 ◽

Cited By ~ 16

Author(s):

T. Przepiorkowski ◽

Stanley F. Gorski

Keyword(s):

Seed Germination ◽

Growth Inhibition ◽

Secale Cereale ◽

Plant Residues ◽

Aqueous Extracts ◽

Laboratory Studies ◽

Weed Species ◽

Shoot Tissue ◽

Germination And Growth ◽

Significant Growth Inhibition

Greenhouse and laboratory studies were conducted to evaluate the effects of rye residues on germination and growth of three triazine-resistant weed species, barnyardgrass, willowherb, and horseweed. Soil containing rye roots was used to determine rye residue influence on seed germination. Willowherb and horseweed germination was inhibited up to 50% with the highest rate of rye, but there was no inhibition of barnyardgrass germination. Aqueous extracts of rye shoot tissue inhibited incubator germination of horseweed and willowherb, but did not significantly influence barnyardgrass germination. Although there were no germination differences between the susceptible and resistant biotypes, both were totally inhibited when a 5% w/v solution was used. Growth inhibition of the selected weeds was evaluated using rye root residues in soil. All combinations of biotypes, species, and rye seeding rates showed significant growth inhibition.

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