Exogenous application of chitosan and humic acid effects on plant growth and yield of pea (Pisum sativum)
Paper Details
Exogenous application of chitosan and humic acid effects on plant growth and yield of pea (Pisum sativum)
Abstract
Chitosan is an organic polymer obtained from de-acetylation of chitin and Humic acid contain acidic groups such as carboxyl and phenolic OH functional groups. Therefore, it provides organic macromolecules with an important role in the transport, bioavailability and solubility of heavy metals Foliar application of both shows positive impacts on the growth and yield of various important crops. A pot experiment was conducted to find out effect of foliar application of chitosan in combination with Humic acid on growth and yield of pea (Pisum sativum) at the University of Agriculture Peshawar during growing season of 2016. Chitosan an organic plant growth stimulant in combination with humic acid were tested as a foliar application for its effects on pea plant. Various combinations of Humic acid (0, 1, 2, 3 g L-1) and Chitosan (0, 40, 60, 80 mg L-1) were applied through foliar spray. Experiment was laid out in completely randomized design (CRD). Pea cultivar Meteor was used for research trail. Data were collected on plant growth parameters such as plant height, number of flowers, chlorophyll content and dry weight of plant and yield parameters such as number of pods, protein content in pods, pod length and weight. Plant growth and yield attributes were significantly affected by chitosan and humic acid in combination (CHI x HA). Results indicated that chitosan and humic acid significantly affected growth and yield attributes of pea. Maximum number of pods (94.33), pod length (13.50 cm) were recorded with 80mgL-1 CHI and 2gL-1 HA. It was concluded that chitosan and humic acid combination (80mgL-1 CHI and 2gL-1 HA) gave the best results in enhancing different growth and yield attributes significantly as compared with control treatment.
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