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在栽培粒用高粱的地区,籽粒因鸟类的侵袭遭到的损耗可能是很惊人的。通过采用为鸟类所厌恶的含单宁品种,高粱籽粒得到有效地保护。据报导高梁籽粒单宁含量与鸟害之间呈高度负相关(Tipton等,1970;McMillian等,1972)。由于单宁所赋与的抗鸟性,抗气候变化(Harris和Eurns,
In the area of sorghum for grain sorghum, the loss of grain due to bird infestation can be staggering. Sorghum grains are effectively protected by using tannin-containing varieties that are offensive to birds. It has been reported that the content of tannin in sorghum is highly negatively correlated with bird infestation (Tipton et al., 1970; McMillian et al., 1972). Due to the anti-avian and anti-climatic changes endowed by tannin (Harris and Eurns,