Welcome to Acta Prataculturae Sinica ! Today is Share:

Acta Prataculturae Sinica ›› 2019, Vol. 28 ›› Issue (3): 175-183.DOI: 10.11686/cyxb2018472

Previous Articles     Next Articles

Nutritional value of new Rumex varieties in stands of differing age in four ecological areas of Heilongjiang province

ZHAO Qiao-qin1, XU Yong-qing1, ZHOU Jing1, FENG Shan-shan1, CAI Zhen-xue1, FENG Zhe1, FENG Xu1, PENG Li-na1, DONG Jia-min1, YAO Shu-kuan1, LI Feng-lan1,*, HU Bao-zhong2,*   

  1. 1.Life Science College, Northeast Agricultural University, Harbin 150030, China;
    2.Harbin University, Harbin 150086, China
  • Received:2018-07-10 Revised:2018-10-15 Online:2019-03-20 Published:2019-03-20

Abstract: In order to increase the range of high-protein forage options in Heilongjiang Province, a new variety of sorrel, ‘Щавель Чемпион’ (Rumex patientia×R. tianschanicus cv. Champion) was introduced. This study reports nutritional analyses of herbage from 2-3 year old stands sampled at key growth stages (rosette stage, stem elongation stage, flowering stage and fruiting stage) in Harbin, Xunke, Nenjiang and Huma regions of Helongjiang Province. It was found that the levels of crude protein (CP), crude fat (EE), crude ash (Ash), neutral detergent fiber (NDF), acid detergent fiber (ADF), Calcium (Ca) and Phosphorus (P) of ‘Щавель Чемпион’ in 3 year old stands was higher than in 2 year old stands in all four sampled growth stages. Environmental conditions in different provincial regions also had a significant impact on the yield and nutritional status of the Rumex herbage. For example, yield accumulation in Huma is much lower than in other areas because of its higher latitude, and lower accumulated temperature. CP levels of Rumex in Xunke and Nenjiang were the highest (P<0.05). ADF content of Rumex grown in Xunke was the lowest (P<0.05), and the Ash content of Rumex planted in Nenjiang was the highest (P<0.05). To summarise, the content of CP, ADF and Ash in Rumex herbage varies with crop growth stage and region; the nutritional value of the herbage increased with stand age in this study.

Key words: Rumex, forage, new varieties, growth years, nutrient properties