遮光与去芒对水稻和大麦产量的影响  

Effects of Ear Shaded and Awn Cut Away on Rice and Barley

作　　者：普布多吉 罗珍[1] 索朗 

机构地区：[1]西藏自治区气候中心,西藏 拉萨 [2]西藏墨脱县气象局,西藏 林芝

出　　处：《气候变化研究快报》2023年第3期540-548,共9页Climate Change Research Letters

摘　　要：通过齐穗后对水稻和大麦采取遮光与去芒处理,探讨遮光与去芒对水稻和大麦穗部产量的影响。结果表明,遮光会使穗粒重降低6.36%~32.44%,千粒重降低0.25%~14.91%。遮光对不同水稻品种的影响也不相同,Y两优6号遮光穗粒重降低24.24%,千粒重降低7.38%;S品8遮光穗粒重降低21.78%,千粒重降低6.16%;甬优8号遮光穗粒重降低21.76%,千粒重降低4.32%;S品29遮光穗粒重降低19.18%,千粒重降低7.46%。大麦去芒穗粒重降低5.25%~17.01%,千粒重降低4.74%~15.69%。去芒对不同大麦品种的影响不相同,Faibasiwu去芒穗粒重降低17.01%,千粒重降低15.69%;Syurai去芒穗粒重降低11.11%,千粒重降低4.74%;Wowomuki去芒穗粒重降低5.25%,千粒重降低7.36%。大麦遮光其穗粒重降低24.08%,千粒重降低24.72%。The effects of shading and awning on the ear yield of rice and barley were discussed by shading and awning after full heading. The results show that, the grain weight per spike decreased by 6.36% to 32.44%, and the 1000-grain weight decreased by 0.25% to 14.91%. Effects of ear shaded on different rice varieties are not the same: the grain weight per spike decreased 21.76% of Yongyou 8 shading;the 1000-grain weight decreased 4.32%. The grain weight per spike decreased 24.24% of Y two and 6 shading;the 1000-grain weight decreased 7.38%. The grain weight per spike de-creased 21.78% of S product 8 shading;the 1000-grain weight decreased 6.16%. The grain weight per spike decreased 19.18% of S product 29 shading;the 1000-grain weight decreased 7.46%. The grain weight per spike decreased by 5.25% to 17.01% of cutting awn on barley;the 1000-grain weight decreased by 4.74% to 15.69%. Effects of cutting awn on different barley varieties are not the same: the grain weight per spike decreased 17.01% of Faibasiwu cutting awn;the 1000-grain weight decreased 15.69%. The grain weight per spike decreased 11.11% of Syurai cutting awn;the 1000-grain weight decreased 4.74%. The grain weight per spike decreased 5.25% of Wowomuki cutting awn;the 1000-grain weight decreased 7.36%. The grain weight per spike decreased 24.08% of barley shading;the 1000-grain weight decreased 24.72%.

关 键 词：水稻 大麦 穗部遮光 去芒 穗粒重 千粒重 

分 类 号：S51[农业科学—作物学]