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[9000727.] رقم البحث : 9000727 - |
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Effect of Amcotone on Vegetative Growth, Fruiting, Fruit / |
| تخصص البحث : General |
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Agricultural Research Journal Suez Canal University / |
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M.T. Wahdan |
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A. E. Melouk |
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amcotone,vegetative gro wth, fruiting, yield,fruit quality,Succary Abiad Mango |
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ABSTRACT
In fi eld trail, 20 -year –old Succary Abiad mango trees, grown in Sandy soil at Abou-Sweer region, Ismailia
Governorate, Egypt, were sprayed with amcotone ( commercial mixture of 1-naphthyl acetamide ( 1.2 %) and 1-naphthyl acetic acid ( 0.45%) in four concentrations ( 0,300, 600and 900ppm) at full bloom in randomized
complete block design. An increment in initial number of fruits per panicle and shoot length was exhibited by 600
ppm followed by 300ppm. The critical periodof fruit DROP waswith on 30-45days after full bloom, where the
most reduction was attached to 900and 600ppm in each period of fruit drop, which resulted in the greatest
number of mature fruits per tree and the highesttree yield. A significant response towards earliness was noted
with 900ppm. An increment in fruit, seed, pulpweight and net ratio as well as SSC/acidity, ascorbic acid, total
sugar, reducing and non reducing sugar were observed with 900ppm while 300ppm gave the longest fruit length
and led to reduce SSC/acidity, but fruitwidth, fruit shape index, SSC and total phenols were varied in very short
range among the various concentrations. A significant increase in number of leaves per shoot,leaf density and
foliage area per shoot were obtained by 900ppm amcotone.
from a practical stand point, full bloom spray of amcotone at 900ppm may be recommended to reduce fruit
DROP and increasenumber of fruit per tree, fruit weight and tree yieldas well as improvefruit quality and
vegetative growth. |
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