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자료유형
학술저널
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한국양봉학회 Journal of Apiculture 한국양봉학회지 제21권 제1호
발행연도
2006.6
수록면
65 - 74 (10page)

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Studies on the effect of different modes of pollination viz. without insect pollination (WIP), open pollination (OP) and bee pollination (BP) (with Apis mellifera honeybees) on strawberry (Fragaria × ananassa Duchesne) cultivar "Chandler" was conducted at RRS Karnal. Exclusion of honeybee input for pollination (WIP) induced plants to produce higher number of low-weight fruits (636) whereas, in OP and BP the trend was reverse. Fruit yield was merely 2895.7 g (per plot of 20 ㎡) in WIP that increased to 4,016.7 g in OP (increase of 38.7% over WIP) and further to 4,816.7 g in BP (66.3%) and even 19.9 per cent over OP. Mean berry weight too was lowest in WIP (4.7 g) followed by 6.7 g in OP and the maximum in BP (9.1 g). The berries in BP were 35.8 percent heavier than OP and 93.6 percent than the WIP. In BP, the value of quantitative traits was always higher throughout the picking period. In WIP, fruit length and breadth was lowest (2.5 × 1.8 ㎝), improving in OP (3.3 × 2.3 ㎝n) and was maximum in BP (3.6 × 2.4 ㎝) an increase of 42.9 and 34.8 per cent over WIP and 8.1 and 5.6 per cent over OP. The number of achene/fruit had a positive correlation with pollination activity (OP and BP) increasing by 99.3 and 104.4 per cent, respectively over WIP. WIP had highest malformed fruits (38.2%) and pollination activity drastically reduced their percentage in OP (7.8%) and BP (6.4%). BP resulted in an increment of 12.4 per cent in acidity (%) and 19.0 per cent in TSS over WIP. Bee pollination resulted in 2.1 times higher value of the product (Rs. 1,82,962) per hectare compared to only Rs. 89,070 in WIP resulting in a cost benefit of 1:48.

목차

Abstract
Ⅰ. INTRODUCTION
Ⅱ. MATERIALS AND METHODS
Ⅲ. RESULTS AND DISCUSSION
Ⅳ. ACKNOWLEDGMENTS
LITERATURE CITED

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