Abstract
Photosynthetic effects of the leaves extracts from Ipomoea cairica on Partheniumhysterophorus L were studied. Ipomoea cairica dried leaf powder (20g) was dissolved in distilled water (200ml) for foliar application. The seedlings were maintained under natural condition in Insect free net house. The experiment was carried out to analyze the effects of Ipomoea cairica leaves extract by measuring chlorophyll ‘a’, chlorophyll ‘b’, total chlorophyll and carotenoid contents in Parthenium. The experimental plants were sprayed 20 days after emergence and control plants were maintained by a simultaneous spray of distilled water. Leaves of Partheniumhysterophorus were collected at 5 days interval following the foliar application of Ipomoea cairica leaves extract up to 15th day. Results showed that Chlorophyll (total chlorophyll, chlorophyll a and b) and carotenoid content was adversely affected as the duration of Ipomoea cairica leaves extract increased. This potential of Ipomoea cairica can be used as herbicide to control noxious weed Partheniumhysterophorous.
Highlights
Weeds are among the main components of the agro-ecosystem that interfere in crop production [1]
Results showed that Chlorophyll and carotenoid content was adversely affected as the duration of Ipomoea cairica leaves extract increased
The results of this study showed that, the control plants chlorophyll content was more in Parthenium hysterophorus, but the Ipomoea cairica leaves extract treatment caused decrease in all the plants up to 15th day over the control respectively in the Parthenium hysterophorous
Summary
Weeds are among the main components of the agro-ecosystem that interfere in crop production [1]. They compete for resources, reducing production, and can deposit a high quantity of seeds in the soil, perpetuating the problem during future plantings [2]. Ipomoea cairica leaves extract has been found to affect adversely against the growth of Parthenium hysterophorous due to decrease in chlorophyll content and enzyme activity [6]. This property of Ipomoea cairica can be used as natural herbicide to control Parthenium hysterophorous
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