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Research of Banana Anti-chilling with Different Measures

Author: ZhuGaoPu
Tutor: LiYongJian
School: Guangxi University
Course: Crop Cultivation and Farming System
Keywords: Banana Cold Measure
CLC: S668.1
Type: Master's thesis
Year: 2008
Downloads: 193
Quote: 4
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Abstract


Using different agricultural measures on the different growth stages of the wintering season winter planting, summer planting, perennial banana field microclimate maximum temperature, minimum temperature, relative humidity, and other observations, record, analyze, explore the the optimal cold effect of different agricultural practices. By chemicals regulation method to study the physiological and biochemical indicators of bananas in different pharmaceutical treatment trend best protection concentration and cold effects the indoor artificial simulation of cold stress conditions. The main conclusions are as follows: 1, different agricultural practices banana cold hardiness single layer sets stems sets of bunk stems, blue film double-bagging (LD), the the blue film sets fruit (LG), film covering (BM) other measures, by observing various processing the maximum temperature, minimum temperature, relative humidity, and other indicators of the effect of cold analysis test different treatment. The results show that: the film covering process, blue film double bagged, blue film sets fruit processing can significantly improve the maximum temperature of the membrane, so that the membrane to maintain a higher temperature, even in the cold winter; enhance intramembranous relative humidity, holding film within the higher humidity; film covering ground temperature to protect the roots of banana seedlings effectively reduce cold injury caused. Film covering which banana seedling plant height, stem diameter, leaf growth rates were 61.04% higher than in the control, 9.96% and 32.7%, respectively; the blue film sets of bunk bagging respectively, compared with the control 62.48%, 37.15% and 21.43%; single layer sets stem, double sets of stems cut stems destruction plant vigor caused plant death is not suitable for agriculture promotion measures. Chemicals regulation impact of the the banana seedlings Cold physiological indicators by spraying different concentrations of choline chloride (CC) Nongjiale the No.1 (NJL1) Nongjiale 2 (NJL2) No. explore the best protection concentration. The results show that: banana seedlings under continuous cooling conditions in the artificial simulation spraying the Choline chloride concentration of 50 mg / L, under continuous cooling conditions the banana seedlings soluble sugar (SS) can significantly improve the content of soluble protein (SP), decreased cell osmotic potential , to prevent excessive cell osmotic stress hazards; reduce the the membranous peroxide malondialdehyde (MDA) content to prevent biofilm oxidation, ion pumps inactivation; improve peroxidase enzyme (POD), catalase (CAT activity), to remove excess superoxide anion radical to prevent the occurrence of excessive biological oxidation; reduce or slow the ion extravasation, reducing the relative electrical conductivity (REC), played mitigate the effect of the degree of cold stress injury; slow down chlorophyll (CHL) degradation or promote chlorophyll synthesis, and the ability to maintain a high light. Nongjiale No. 1, but also improve the content of proline (Pro), decreased cell water potential. Nongjiale diluted 50 times in the 1st Nongjiale diluted 40-fold effect the best performance in each treatment.

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CLC: > Agricultural Sciences > Gardening > Fruit trees gardening > Perennial herbaceous fruit > Banana
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