不同灌水模式对核桃树产量及品质的影响

通过大田小区试验与理论分析,研究了6 a生核桃树在不同灌水处理:灌水定额为15 mm滴灌,C1处理;灌水定额为30 mm滴灌,C2处理;灌水定额为45 mm滴灌,C3处理;灌水定额为30 mm涌泉灌,C4处理,对核桃树生理生态、产量及品质的影响。结果表明,各处理间叶绿素最大质量分数以及最终叶面积的关系为:C2处理C3处理C4处理C1处理,处理间有显著性差异;在果实纵横径及核桃体积上,各处理间差异显著,其最终值大小关系为:C2处理C3处理C4处理C1处理;脂肪量在处理间关系为:C2处理C4处理C3处理C1处理;蛋白质质量分数随着灌水定额增加而增加;C2处理单果质量最高、体积最大、出仁率最高且总产量最高。综合考虑,推荐采用C2处理进行灌溉。

Effects of Different Irrigation Modes on Yield and Quality of Walnut Trees

Through field experiment and theory study,the effects of 6 year old walnut tree in different irrigation treatments (the drip irrigation quota for 15 mm,C 1;the drip irrigation quota for 30 mm,C2;the drip irrigation quota for 45 mm,C3;the bubble irrigation quota for 30 mm,C4)on peach kernel physiological ecology,yield and quality were studied.The results showed that the chlorophyll maximum mass fraction and final leaf area or-der were C2>C3>C4>C1,and the difference between all treatments was significant;the differences offruit diam-eter and the volume of walnut were also significant among different treatments,the final value of size was C2>C3>C4>C 1;the relationship of fat amount among all treatments was C2>C4>C3>C 1 ,the concentration of pro-tein increased with the increase of irrigation quota;C2 treatment had the highest weight,the largest volume,the highest kernel rate and the highest total yield.Therefore the C2 treatment was recommended for walnut tree irri-gation.