CD Tesis

Respons Fisiologi Tanaman Cabai (Capsicum annuum L.) Terhadap Cekaman Kekeringan

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Chili plants (Capsicum annuum L.) are one of the horticultural commodities that are sensitive to water shortages. Water shortages in the root zone can cause significant growth and physiological disorders. This research aims to determine the physiological and growth responses of chili plants to drought stress.
The research was conducted from July to November 2023 in the screen house of the FMIPA Biology experimental garden and the Ecophysiology Laboratory, Faculty of Agriculture, Riau University, Pekanbaru. The plants used were hybrid curly red chili varieties Lado. The research y used a Completely Randomized Design with five treatments of watering frequency as the level of drought stress. The variables observed were the growth and physiology of chili plants. Data were analyzed using analysis of variance at the 5% level, followed by the 5% Honest Significant Difference (HSD) test.
The research showed that drought stress affected the physiological variables of chili plants, including decreased photosynthesis rate (19%), stomatal conductance (60%), transpiration rate (60%), and chlorophyll content (32%). In addition, there was an increase in proline levels (2000%) as an adaptive response to water deficit. High proline levels help plants maintain cell structure under stress conditions, but tolerance decreases photosynthesis efficiency and fruit productivity. Drought stress has a significant impact on the growth of chili plants. The decrease in plant height, leaf length (cm) and leaf width (cm), as well as fresh shoot weight (g) and dry shoot weight (g) indicated that drought stress inhibited the agronomic growth of chili plants. In contrast, plants showed growth adaptation by thickening leaf cuticles (µm) and elongating roots (cm) to access water from deeper soil layers. However, plant productivity can be measured through fruit weight (g), significantly decreased under water drought stress conditions, indicating the limited tolerance of chili plants to water stress.


Keywords: Drought stress, chili, Capsicum annuum L., physiological response, agronomy

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

2110246778

Penerbit

Pekanbaru : Universitas Riau Pascasarjana Tesis Ilmu Pertanian., 2025

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

2110246778

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

Sumberdaya Lahan

Info Detail Spesifik

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Pernyataan Tanggungjawab

Jaka

Versi lain/terkait

Lampiran Berkas

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