LASANA -INIA: A NEW SPRING BREAD WHEAT CULTIVAR FOR THE CENTRAL SOUTH AND SOUTHERN ZONE OF CHILE

Abstract

Lasana-INIA is a spring bread wheat variety (Triticum aestivum L.) originated from a cross carried out in the Wheat Breeding Project of the Agricultural Research Institute (INIA), in the Quilamapu Regional Research Center, Chillán, in 1996. It has a semi-prostrate growth habit in the seedling stage. The adult plant is medium height and varies between 85 and 100 cm. The spike is white with long awns along its full length. The grain is red, vitreous in appearance, and elliptical in shape. The weight of 1,000 seeds varies between 42 to 49 g. It was sown in mid-August in the Santa Rosa Experimental Station (36°31’ S; 71°54’ O), Chillán; head emergence occurred 95 to 100 days after sowing. On average, the yield of Lasana-INIA sown under irrigation in Yungay and Human was 0.5% and 3.1% higher than the control variety Pandora-INIA. In Chillán, the average yield over a fiveyear period was 4.1% lower than Pandora-INIA, but with differences between years. Under rainfed conditions, the yield of Lasana-INIA sown in Carillanca and Purranque was 9.5% and 4.2% higher than Pandora-INIA. Lasana-INIA is a bread wheat with a good hectoliter weight and a hard texture. According to its Zeleny sedimentation (cc) value, wet gluten (%) and protein (%) contents, it can be classified as strong wheat. It has a high W value, and a good P/L ratio.