Variation in grain skinning among spring barley varieties induced by a controlled environment misting screen
Variation in grain skinning among spring barley varieties induced by a controlled environment misting screen
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DOI：
10.1017/s0021859616000423
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发表时间：
2017-03-01
影响因子：
2
通讯作者：
Hoad, S. P.
中科院分区：
文献类型：
--
作者：
Brennan, M.;Topp, C. F. E.;Hoad, S. P.
目前的研究调查了使用受控喷雾环境来模拟与高水平的啤酒大麦缺陷、谷物结皮有关的现场条件。对 200 多个春大麦品种进行了评估，以确定那些对缺陷特别有抵抗力或敏感度的品种。研究了品种间剥皮严重程度与穗长、花数、粒数、粒重等性状的关系。在一组被选为处理对照的七个品种中，发现喷雾会显着增加剥皮的严重程度。喷雾处理对这些品种的穗部性状测量没有影响。在喷雾处理下种植的 200 个品种中，剥皮程度呈连续谱，与穗长、小花数、粒数或粒重无关。通过喷雾处理，可以确定品种间对谷物结皮敏感性的差异。由于喷雾处理不影响测量的果穗性状，并且品种间果穗性状与剥皮严重程度之间没有相关性，因此喷雾对剥皮严重程度的影响必须通过其他生理特性来调节。
The current study investigated use of a controlled misting environment to simulate field conditions that have been implicated in high levels of the malting barley defect, grain skinning. More than 200 spring barley varieties were assessed to identify those varieties that were particularly resistant or susceptible to the defect. Relationships between skinning severity and the traits ear length, floret number, grain number and grain weight were examined among the varieties. In a panel of seven varieties chosen as treatment controls, misting was found to significantly increase skinning severity. The misting treatment had no effect on measured ear traits of these varieties. Among the 200 varieties grown under the misting treatment, there was a continuous spectrum of skinning severities, which were not correlated with ear length, floret number, grain number or grain weight. Using the misting treatment, differences in susceptibility to grain skinning could be determined among varieties. As the misting treatment did not affect measured ear traits, and no correlation was found between ear traits and skinning severity among varieties, the effect of misting on skinning severity must be mediated through other physiological characteristics.