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首页> 外文期刊>Acta Horticulturae >Interaction of Benzyladenine and Naphtaleneacetic Acid on Fruit Set, Fruit Size and Crop Value of Twelve Apple Cultivars
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Interaction of Benzyladenine and Naphtaleneacetic Acid on Fruit Set, Fruit Size and Crop Value of Twelve Apple Cultivars

机译：苄基腺嘌呤和萘乙酸对十二个苹果品种的坐果，果实大小和作物价值的相互作用

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摘要

In 2003 and 2004, we conducted field studies of the chemical thinning efficacy of the combination of Benzyladenine (BA) and Naphtaleneacetic acid (NAA) in comparison with NAA+carbaryl or BA+carbaryl sprays on 12 apple cultivars ('Braeburn', 'Cortland', 'Delicious', 'Empire', 'Fuji', 'Gala', 'Gingergold', 'Jonagold', 'Jonamac', 'Liberty', 'Mclntosh' and 'Sansa'). With most cultivars, the combination of BA+NAA gave good thinning and good increases in fruit size indicating that this treatment could be used as an alternative to combinations using carbaryl. However, with 'Delicious' and 'Fuji' and to a lesser extent with 'Braeburn' the combination of BA+NAA caused many pygmy fruits to be retained on the trees. The effect was strongest with 'Fuji' where more than 50% of the fruit on the tree were pygmies. The effect appears to be primarily caused by NAA since NAA alone also gives pygmy fruit. However, it is likely that the cytokinnin effect of BA which inhibits the complete formation of an abscission zone exacerbates the problem. With 'Empire', the combination of BA+NAA was very successful and was much better than NAA+carbaryl which tends to cause stunting of fruit growth. The BA+NAA combination would be an alternative with 'Empire' if carbaryl was removed from the market. With most of the cultivars, crop value was enhanced considerably with thinning. The greatest improvements were with BA+carbaryl, but BA+NAA also improved crop value.
机译：在2003年和2004年，我们对12个苹果品种（“ Braeburn”，“ Cortland”）中的苄基腺嘌呤（BA）和萘酞乙酸（NAA）组合与NAA + carbaryl或BA + carbaryl喷雾剂的化学稀释效果进行了田间研究。 ”，“美味”，“帝国”，“富士”，“嘎拉”，“金戈德”，“乔纳戈尔德”，“乔纳马克”，“自由”，“麦昆图什”和“桑萨”）。在大多数品种中，BA + NAA的组合能够很好地疏化果实，并增加果实大小，这表明该处理方法可以替代使用甲萘威的组合。但是，与“美味”和“富士”一起使用，以及在较小程度上与“ Braeburn”一起使用时，BA + NAA的结合会导致许多矮小的水果留在树上。 “富士”的效果最强，其中树上超过50％的水果为py格米人。这种作用似乎主要是由NAA引起的，因为单独的NAA也会给侏儒结实。然而，BA抑制分裂区完全形成的细胞分裂素作用可能加剧了该问题。在“帝国”中，BA + NAA的组合非常成功，并且比NAA + carbaryl更好，后者往往会导致果实生长发育迟缓。如果将西维因从市场上删除，则BA + NAA组合将成为“帝国”的替代产品。对于大多数品种而言，间伐可以大大提高作物的价值。最大的改善是使用BA +西维因，但是BA + NAA也提高了农作物的价值。

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