EFFECT OF HIGH TEMPERATURE TO FRUIT PRODUCTIVITY AND SEED-SET OF SWEET PEPPER (Capsicum annuum L.) IN THE FIELD CONDITION
Abstract
Chili pepper grow best and likely to reach the maximum yield at temperature ranging from 21 to 33 0C. In the plastic house, the temperature increase to 42 0C in the summer. Some reports indicated that the fruit set and fruit growth were effected correlative with the high temperature condition. In this study, Shishito peppers were grown in plastic house two times (in the early stage of April and the end stage of May) in 2012. The difference in temperature between two times of planting was about 4 0C. Almost fruit set period of 2nd planting, the weather condition is disadvantage for fruit growth. During temperature changed in the summer, the fruit weight and the number of seeds per fruit of both ‘Shishi-homare’ and 105c-10 varieties were reduced about 0.5 and 2.8 times in the 2nd planting when we compare with the 1st planting. The number of seeds/ fruit reduced corresponding with the fruit size under the high temperature condition.References
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