本文選題：青飼料 + 抗寒性��； 參考：《草業(yè)科學》2017年04期

【摘要】：為了篩選華南地區(qū)適宜的優(yōu)質(zhì)冬季青飼料草種,本研究比較了旋扭山綠豆(Desmodium intortum)、大葉山螞蟥(Desmodium laxiflorum)、異果山綠豆(Desmodium heterocarpum)、顯脈山綠豆(Desmodium reticulatum)、糙毛假地豆(Desmodium heterocarpum var.strigosum)和柱花草(Stylosanthes guianensis)6種熱帶亞熱帶豆科牧草在廣州越冬期的抗寒性及營養(yǎng)品質(zhì)。結(jié)果表明,除柱花草外,其它5種豆科牧草均能保持青綠越冬,其中旋扭山綠豆和大葉山螞蟥的葉綠素含量均顯著高于其它牧草(P0.05)。旋扭山綠豆的凈光合速率最高(P0.05),其次是大葉山螞蟥(P0.05),因此這兩種牧草具有相對較強的抗寒性;與其它牧草相比,旋扭山綠豆在冬季能保持較高的粗蛋白含量(15.99%~20.26%)(P0.05)以及較低的洗滌纖維(NDF 27.92%~30.89%、ADF 23.96%~27.06%)和縮合單寧含量(6.05~11.95mg·g~(-1))(P0.05),因而具有較高的營養(yǎng)價值。因此,旋扭山綠豆可以作為華南地區(qū)冬季豆科青飼料的潛在優(yōu)選草種。
[Abstract]:In order to select high quality winter forage grass species in South China, In this study, the cold resistance and nutritional quality of Desmodium intortumus, Desmodium laxiflorumus, Desmodium heterocarpa, Desmodium reticulatumum, Desmodium heterocarpum. Strigosuma and guianensis)6 species of tropical subtropical legumes in Guangzhou during winter were compared with those of Desmodium intortum, Desmodium laxiflorum, Desmodium heterocarpa, Desmodium reticulatumum, and Styvar. strigosuma, respectively. The results showed that the other five legume forages could keep green and overwintering except for Stylosanthes, and the chlorophyll content of mung bean and Leech were significantly higher than that of other forages (P0.05). The net photosynthetic rate of mung bean in Xunwushan was the highest (P0.05), followed by Leech (P0.05). Therefore, these two forages had relatively strong cold resistance, and compared with other forages, In winter, the content of crude protein of mung bean in Xuan wushan can keep a high crude protein content of 15.999.26% (P0.05) and a lower amount of washing fiber (NDF 27.92T = 30.89% ADF23.9627.0610) and the content of condensed tannin (6.05 ~ 11.95mg / g) -1P0.05m, so it has higher nutritional value. Therefore, Xunwushan mung bean can be used as a potential optimal selection of legume forage in South China.
【作者單位】： 華南師范大學生命科學學院;廣東省華南牧草工程技術(shù)研究中心;連州市東籬種養(yǎng)實業(yè)有限公司;
【基金】：廣東省科技計劃項目(2013B020501003)
【分類號】：S54;S816

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