光能变价离子钛对雹灾后燕麦的影响初探

A Preliminary Study of Spray TIVL on Avena sativa L. after Hail Disasters

川西北高原4月中旬至6月中旬,处于苗期~分蘖期的燕麦常受频发的冰雹袭击,燕麦后期生长受到严重影响,甚至显著降低当年的牧草产量和品质。研究发现,离子钛具有促进光合效率,提高植物的抗逆能力,增加牧草的产量和品质的作用。为降低冰雹给牧草带来的不利影响,本研究拟利用光能变价离子钛(TIVL)对遭受冰雹灾害的燕麦进行叶面喷施,通过测定供试材料的株高、茎叶比、分蘖数、牧草产量和营养成分等指标,探究离子钛对燕麦牧草产量和品质的影响。结果表明,离子钛不但可以显著增加燕麦的株高、茎叶比、鲜草和干草产量以及蛋白含量(P<0.05),而且对单位面积分蘖数、旗叶长、旗叶宽、倒二叶长以及倒二叶宽也有一定的促进作用。其中以8ml/L处理的株高、鲜草产量、干草产量以及粗蛋白含量最高,分别比对照组高16.9%、34.1%、31.2%和0.17%,差异显著(P<0.05);另外,喷施TIVL还显著降低了燕麦中性洗涤纤维和酸性洗涤纤维含量(P<0.05)。由此可以得出,叶面喷施离子钛(TIVL)可以提高灾后燕麦的产量和品质,在一定程度上降低了冰雹灾害对燕麦生产性能的影响,适宜在燕麦牧草生产上推广应用。

Hailstones are frequent from mid -April to mid -June in the northwestern Siehuan plateau. Tile disaster brought negative impact to the yield and quality of oats that are at the seedling stage to the tillering stage. Previous studies have shown that Ionic＇, Titanium can promote photosynthetic efficiency, increase plant resistance and increase crop yield and quality. We spraying Titanium ion of variable va- lence with light energy （TIVL） on leaf in order to reduce the adverse effects of hail disasters on oats. The results showed that the TIVL con- centration of 8ml/L had the most significant effect on the yield and quality of Avena saliva L . ＂menglong＂ . 8ml/L TIVL significantly in- creased the plant height of menglong with the value of 16. 9% , and increased fresh grass yield and dry grass yield with the value of 34. 1% and 31.2% , also increased protein content of 0. 17%. Besides, 8ml/L TIVL significantly decreased the neutral detergent fiber and acid de- tergent fiber with the value of 1.3% and 0. 9%. In general, spraying TIVL on the Arena saliva L. after hail can increase the yield and qual- ity, reduce the impact of disasters.