Evaluation of spring rapeseed-canola cultivars in Paraná during 2019

Published 2020년 10월 4일

Tridge summary

A study was conducted to evaluate 14 spring-type rapeseed cultivars at the EEA Paraná experimental field in Argentina. The trial included cultivars developed in the INTA Rape Improvement Program and a triazine-tolerant hybrid, as well as the traditional Rivette cultivar. The crop was planted on soil fertilized with calcium superphosphate, urea, and ammonium sulphate, and weed control was implemented. The experiment endured 21 agronomic frosts. The period from emergence to physiological maturity varied, with the yield not linked to the cultivar cycle or flowering date but to the length of the reproductive period. The early maturity and late flowering of most cultivars could allow for early harvest and earlier planting of second-rate soybeans, and most started flowering before September, which is associated with higher yields and lower disease incidence in Paraná.

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Original content

The cultivation of rape, in addition to favoring the production of second-class crops and improving the profitability of double cropping, would allow the interruption of the cycle of diseases and harmful weeds for other subsequent winter crops. Rapeseed cultivars are being incorporated into Argentina every year, some of which present new alternatives for weed control. However, the knowledge of the phenology of each cultivar and other attributes related to the yield and its interaction with the environment can be decisive in its adaptation to the entrerrianos agricultural systems. The objective of this work was to compare the behavior of rapeseed cultivars in the INTA's EEA Paraná. What did the experiment consist of? In the experimental field of the EEA Paraná a trial was carried out to evaluate 14 spring-type rapeseed cultivars (Table 1). The evaluated cultivars included rape lines developed in the INTA Rape Improvement Program and for the first time a triazine-tolerant hybrid ...

Source: Rural Net