Foliar Ethephon Fruit Thinning Improves Nut Quality and Could Manage Alternate Bearing in Pecan
Foliar Ethephon Fruit Thinning Improves Nut Quality and Could Manage Alternate Bearing in Pecan
复制标题
叶面乙烯利疏果可提高坚果质量并可管理山核桃的交替结果
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
K. Khattak
中科院分区：
文献类型：
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作者：
S. Khalil;J. Mexal;I. Khalil;S. Wahab;A. Rehman;Z. Hussain;A. Khan;A. Khan;K. Khattak
美国山核桃[Carya illinoensis（Wangenh.）C. Koch公司面临着严重的交替结果问题，在一年中产生大量的低质量的果实，然后在第二年中产生少量的果实，果实总产量低。因此，农民多年来的收入很低。乙烯利叶面喷施被认为是一种疏果的替代方法，然而，有限的公开资料，可用于山核桃。研究了不同浓度乙烯利对美国山核桃疏果、产量和品质的影响。叶面乙烯利;在美国拉斯克鲁塞斯的新墨西哥州州立大学将200、400、600 ppm的水喷雾和对照（不喷雾）喷雾在27年生的山核桃栽培品种“威奇托山核桃上。乙烯利被用作乙烯的来源。叶片脱落、黄化和籽粒品质的增加与总粒重的降低呈显著相关。然而，收获时的坚果总数保持不变。叶面喷施乙烯利600 ppm效果较好。结果表明，乙烯利600 ppm叶面喷施可减少盛果年份的坚果数，提高果实品质。这可能会定期增加山核桃种植者的利润。
Pecan [Carya illinoensis (Wangenh.) C. Koch] faces serious problem of alternate bearing producing large number of fruits of low quality in one year, followed by small number of fruits in next year with low total fruit production. As a consequence, the farmers get low income over years. Ethephon application in the form of foliar is considered as an alternative method for fruit thinning, however, limited published information is available on pecan. Effect of different levels of ethephon as source of ethylene on pecan fruit thinning, yield and quality was evaluated in this research. Foliar ethephon; 200, 400, 600 ppm, water spray and control (No spray) were sprayed on 27 year old pecan cultivar „Wichita‟ at New Mexico State University, Las Cruces, USA. The ethephon was used as a source of ethylene. The increase in leaf defoliation, chlorosis, and kernel quality with decrease in total kernel weight were significant. However, total number of nuts at harvest remained the same. Foliar ethephon applied at 600 ppm performed better compared with other treatments. In conclusion, the ethephon at the rate of 600 ppm as foliar spray produced good quality by reducing number of nuts in the excessive fruit loading year, which had resulted in greater fruit set in the following year. This may increase profit of the pecan growers on a regular basis.