SciELO - Scientific Electronic Library Online

 
vol.26 issue1Hexaploid wheat genotypes evaluation to toxic aluminum tolerancePlanting date and cultivar influence on the total yield of garlic (Allium sativum L.) in Santa Maria, RS author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Ciência Rural

Print version ISSN 0103-8478

Abstract

AUDE, Maria Isabel da Silva; BISOGNIN, Dilson Antonio  and  ZANINI, Welington. Dry matter accumulation and duration of grain filling period in triticale. Cienc. Rural [online]. 1996, vol.26, n.1, pp. 23-27. ISSN 0103-8478.  http://dx.doi.org/10.1590/S0103-84781996000100005.

The experiment aimed to determine the rate and duration of grain filling period of triticale in Santa Maria region -RS. Five cultivars (BR l, BR 2, CEP 15. CEP 18 and IAPAR 23) were evaluated in a randomized complete block design in 1988 and 1989. The duration from anthesis to physiological maturity was 45 days, while the duration of the life cycle from seeding to physiological maturity was 156 days, corresponding to 676 and 1637 accumulated growing degree days, respectivelly. The rate of dry matter accumulation m the grain of triticale was 0.694mg/day, and the mean dry weight estimated at physiological maturity was 31.3mg. The cultivars were different in terms of the rate of dry matter accumulation, wich is possible to suggest the use of this trait to cultivar recommendation in regions where normally occur high temperatures in the end of the filling period. The mean grain weight was associated with the rate of dry matter accumutation and not wich the grain filling period.

Keywords : triticale; cultivars; growing degree.

        · abstract in Portuguese     · text in Portuguese     · pdf in Portuguese