The effect of waterlogging at the vegetative stage on shoot and root growth of chickpea cultivars (Cicer arietinum L.)

Articles in Press

Document Type : Original Article

Authors

• Leila Siahkamary
• Mohammadeghbal Ghobadi
• Mokhtar Ghobadi
• saeed jalalihonarmad

Razi University

10.22067/ijpr.2024.84854.1069

Abstract

Vegetative growth of chickpeas in spring coincides with heavy rains (short-term or long-term). In this situation, waterlogging may occur and the plant's roots face a lack of oxygen. Understanding the growth and physiological responses of chickpea cultivars to periods of flooding is very important for developing strategies to improve crop yield in waterlogged environments. For this purpose, a two-year experiment was conducted on chickpea cultivars ILC482 and Azad (Kabuli type), Kaka and Pirooz (Desi type) and in periods (control, 4, 8 and 12 days of flooding) at 30 days after planting. The results showed that during the second year, due to the lower temperatures in the early stages of growth increased the total dry weight and total root length. The seed yield of ILC482 and Azad cultivars was lower than Kaka and Pirooz varieties. All traits decreased significantly with increasing duration of flooding. The amount of losses in 12-day flooding compared to control for biological yield (30%), weight of 100 seeds (38%), total root length (14.2%), root dry weight (38.8%), root volume (20.6 percent) and the number of nodes (32.8 percent). Decreased also membrane stability index, chlorophyll a and b, carotenoids, relative water content, remobilization of carbon hydrate from stem to seed and seed protein. In general, Desi type cultivars were more resistant to waterlogging than Kabuli type. Furthermore, even a four-day waterlogging period caused significant damage to root and shoot growth in chickpea.

Keywords

• Photosynthetic pigments
• Relative water content
• Remobilization
• Total root length

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