Agronomic traits of 15 annual Ixeris polycephala varieties in the southwest of Sichuan Province

doi:10.11686/cyxb2015146

Abstract

Abstract: Agronomic traits of 15 Ixeris polycephala varieties were studied in field trials in Ya’an, in the southwest of Sichuan Province. The growth periods of new lines Chuanxuan No.1 and L5-4 were longer than Longmu (P<0.01). In the two years 2013 and 2014, the yields of new line Chuanxuan No.1 were the highest, with a notable yield advantage at the second defoliation and regeneration. The average hay yield of the new line Chuanxuan No.1 was 5585 kg/ha, a 64.75% (P<0.01) increase, compared with Longmu. With respect to stem∶leaf ratio, the highest leaf content was found in the new line L5-4, and the second ranked was new line Chuanxuan No.1; the stem∶leaf ratios were 0.52 and 0.55, respectively. In terms of nutrients, the new line Chuanxuan No.1 had abundant minerals and high nutritional value, the crude protein was 26.12%, while crude fiber was 12.11%. Thus, the new lines Chuanxuan No.1 and L5-4 with high yields and leaves of high feeding value were suitable for recommendation for planting in the southwest of Sichuan Province.

BAN Qian, HUANG Lin-Kai, ZHANG Xin-Quan, JIANG Lin-Feng. Agronomic traits of 15 annual Ixeris polycephala varieties in the southwest of Sichuan Province[J]. Acta Prataculturae Sinica, 2016, 25(2): 37-46.

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