Study of Photosynthetic Efficiency of Some Guar (Cyamopsis tetragonoloba L. Taub) Genotypes Grown under Different Water Regimes

Khanzada, B.; Ashraf, Muhammad; Shirazi, Muhammad Ubaidullah; Alam, S. M.; ., K. B. Samo; Mujtaba, S. M.

doi:10.3923/ajps.2003.127.131

Cited by 4 publications

(1 citation statement)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several studies have reported the responses of guar to water deficit conditions, including reduced leaf area index (Khanzada et al., 2003), reduced vegetative growth rate (Baath et al., 2020), and reduced seed yield (Avola et al., 2020). Although there are variations in response to water deficit conditions, little information exists in the literature about the soil moisture extraction dynamics within the soil across the season in relation to these observed responses.…”

Section: Introductionmentioning

confidence: 99%

Guar resilience in water‐restricted production

2022

View full text Add to dashboard Cite

Guar [Cyamopsis tetragonoloba (L.) Taub] is an alternative crop in the Southern High Plains that thrives in semi-arid regions, due to its low water input requirements. Field experiments were conducted in 2017 and 2018 at New Deal, TX, to evaluate the response of guar ('Matador') to four levels of deficit irrigation (DI; extreme, 51 mm; severe, 127 mm; moderate, 203 mm; and mild, 279 mm). Soil moisture extraction patterns, plant height, leaf area index, yield components, seed yield, harvest index (HI), agronomic water use efficiency (AWUE), and irrigation WUE (IWUE) were measured among the irrigation levels. In both years, guar grown under extreme and severe DI extracted a major portion of the water from the 50-to-100-cm soil depth. Water deficit reduced plant height, leaf area index, and number of pods per plant in both years. However, the IWUE and 1,000-seed weight increased with reduced irrigation. There were no significant differences in seed yield, HI, and AWUE among treatments as a result of a tradeoff between increased seed weight with low pod production under lower DI treatments and increased pod production with low seed weight under higher DI treatments. Guar extracted water deeper in the soil and produced adequate numbers of pods per plant in balance with the source organ capacity to allocate resources toward optimal seed development. Our research offers valuable information about root exploration and development of larger seeds as compensatory mechanisms that can be further explored to improve the adaptability of guar under water-restricted production conditions.

show abstract

Section: Introductionmentioning

confidence: 99%

Guar resilience in water‐restricted production

2022

View full text Add to dashboard Cite

show abstract

Differential responses of two local and commercial guar cultivars for nutrient uptake and yield components under drought and biochar application

Soltani-Gerdefaramarzi,

Hoseinollahi,

Meftahizadeh

et al. 2024

Sci Rep

View full text Add to dashboard Cite

Drought stress and its management in wheat (Triticum aestivum L.): a review

Sharma¹,

Yadav²,

Shrestha³

et al. 2022

AST

View full text Add to dashboard Cite

Abstract. Drought is one of the major constraints to wheat production, and it is becoming a more serious problem in many wheat-growing regions of the world. It causes a severe reduction in wheat crop growth and productivity. Water stress at critical growth stages namely tillering, grain filling and flowering stages causes serious yield loss. Morphological, physiological, biochemical, and molecular changes are seen as a result of drought stress in wheat. When plants are exposed to drought stress, they use three basic survival strategies, stress avoidance, escape, and tolerance. Growing drought tolerant varieties and applying agronomic management to create innovative water-use approaches is important for drought management. This review summarizes the effects of drought stress on wheat growth and productivity. This review could be useful for wheat researchers and growers for making the right decision on drought management in wheat.

show abstract

Study of Photosynthetic Efficiency of Some Guar (Cyamopsis tetragonoloba L. Taub) Genotypes Grown under Different Water Regimes

Cited by 4 publications

References 11 publications

Guar resilience in water‐restricted production

Guar resilience in water‐restricted production

Differential responses of two local and commercial guar cultivars for nutrient uptake and yield components under drought and biochar application

Drought stress and its management in wheat (Triticum aestivum L.): a review

Contact Info

Product

Resources

About