Breeding of a New Rape Variety'Qinyou 1618'Suitable for Mechanical Harvesting
To select and breed hybrid rapeseed with high oil,high yield and strong advantages suitable for mechanical cultivation,the aim is to provide excellent rapeseed varieties and innovative strong and excellent vari-eties for production.Through many years of multi-point experiments and directional selection,using the male sterile line"H04A"as the maternal parent and the high quality germplasm resource"DC2R"with good compre-hensive resistance as the paternal parent,a mechanically harvestable,strong dominant brassica napus double low hybrid rapeseed new variety'Qinyou 1618'has been bred.The average yield of this variety was 3 468.75 kg/hm2,which was 8.5%higher than that of'Qinyou 7',and the oil content was 46.76%.The average yield in the lower reaches of the Yangtze River was 2 854.05 kg/hm2,which was 10.67%higher than that of'Qinyou 10',and the oil content was 49.68%.It exhibited rapid growth,resilience to late sowing,tolerance to dense planting,strong disease resistance,and moderate plant height(160 cm).With lodging resistance and ideal for mechanical harvesting,'Qinyou 1618'is suitable for winter-sowing and cultivation in the Huanghuai area and low-er reaches of the Yangtze River.
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