+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Screening spring wheat genotypes triticum sp for seedling emergence under optimal and suboptimal temperature conditions

Screening spring wheat genotypes triticum sp for seedling emergence under optimal and suboptimal temperature conditions

Japanese Journal of Breeding 41(2): 381-387

Ninety six tetraploid spring wheat genotypes and six hexaploid wheat cultivars were allowed to germinate in four growth chambers set at temperature regimes of 5.degree.C, 10.degree.C, 15.degree.C, and 20.degree.C. Temperature had a strong effect on seedling emergence time of all genotypes. This effect was much more dramatic at the lower than at the higher temperature values. Optimum temperature conditions (15.degree.C and 20.degree.C) were associated with smaller genetic variances for seedling emergence time. The 15.degree.C and 20.degree.C did not statistically differ in their effects on emergence time. The 5.degree.C and 10.degree.C treatments can be successfully used to screen genotypes for their cold tolerance because of much larger genetic variances. Genotypes were classified into three categories according to their cold tolerance: tolerant, intermediate, and susceptible. Hexaploid genotypes were the most cold tolerant in this wheat population. The most cold tolerant tetraploid genotypes are 1460, Adamello, Creso, Echiopia Komugi 723-201, Kunduru 1149, Kyperounda, Latino, Mindum, and Norba. The emergence time of these 9 tetraploid genotypes was comparable to that of the hexaploid genotypes. Under low temperature conditions some spring wheat genotypes performed similarly as the winter types suggesting the cold tolerance during seedling emergence is independent of varnalization replacement. There was no genotype x temperature interaction indicating that selection for cold tolerance is effective. The 10.degree.C can be successfully used to screen genotypes for their cold tolerance during the emergence growth phase.

Please choose payment method:

(PDF emailed within 1 workday: $29.90)

Accession: 007771586

Download citation: RISBibTeXText

Related references

Relationships between wheat seed atp content germination and seedling vigor of different spring wheat triticum aestivum genotypes. Canadian Journal of Plant Science 60(4): 1455-1458, 1980

Effects of genotype and seed size on speed of emergence and seedling vigor in nine spring wheat cultivars triticum aestivum. Crop Science 26(2): 341-346, 1986

Tetrazolium chloride test for spring wheat triticum aestivum seedling vigor at low temperature. Crop Science 26(1): 167-170, 1986

Osmotic potential and temperature effects on germination of spring wheat genotypes (Triticum aestivum L.). Tropical Agriculture 76(2): 114-119, 1999

Seedling emergence of wheat triticum aestivum and gram cicer arietinum in relation to soil water potential temperature and seeding depth. Journal of the Indian Society of Soil Science 29(4): 437-440, 1981

Varietal differences in spring wheat seedling emergence as determined by coleoptile length, temperature and sowing depth. Agricultura tec, Santiago 28: 103-10, 1968

Coleoptile length, percent emergence and emergence index in wheat (Triticum aestivum L. and Triticum durum Desf.) and Triticale (X Triticosecale W.) with varying levels of planting depth and temperature. Ciencia e Investigacion Agraria 4(1): 15-20, 1977

Effects of laboratory germination soil temperature and moisture content on the emergence of spring wheat triticum aestivum cultivar timmo. Journal of Agricultural Science 107(2): 431-438, 1986

Screening of wheat genotypes for drought tolerance at seedling establishment over a range of temperature levels. JNKVV Research Journal 2005; 38(2): 13-17, 2004

Evaluation of pearl millet Pennisetum glaucum genotypes and validation of screening methods for supra-optimal temperature tolerance at seedling stage. 2013

Seedling emergence of common bean accessions under suboptimal temperature. Journal of the American Society for Horticultural Science 129(4): 503-508, 2004

Effect of soil temperature alteration by soil covers on seedling emergence of wheat (Triticum aestivum L.) sown on two dates. Plant and Soil 57(1): 125-129, 1980

Emergence under stress conditions in a diallel crossing of winter wheat m triticum aestivum m under controlled temperature and humidity. Agricultura Tecnica (santiago): 11-18, 1970