Variations in salinity tolerance of selected mango rootstocks

Abstract

An experiment was conducted at the Germplasm Centre, Department of Horticulture, Patuakhali Science and Technology University (PSTU) during the period from July 2011 to March 2013 to study the performance of selected mango rootstocks in the saline area in Bangladesh. The experiment consisted of four mango rootstock lines collected from Rangpur, Dumki, Khulna and Kuakata, and five salinity treatments namely control (0 dSm-1), low (4 dSm-1), medium (6 dSm-1), high (8 dSm-1) and very high (10 dSm-1). A two factor experiment was conducted in a Randomized Complete Block Design (factorial) with four replications. Results revealed that rootstock line and salinity levels had significant influences on various crop characters viz. length of rootstocks, diameter of rootstocks, number of leaves and percent rootstocks success and survivability. In case of rootstocks, the longest rootstock length (41.38 cm), highest number of leaves (37.58) and survivability (71.73%) were recorded in Rangpur line. In case of salinity treatments, rootstock diameter (16.09 mm), number of leaves/graft (36.47) and survivability (67.37%) were recorded in low salinity treatment. Interaction of rootstock lines and different salinity treatments showed significant variation on the length and diameter of rootstocks at 120 DAT. The maximum diameter of rootstock (17.63 mm) was recorded in high (8 dSm-1) salinity treatment in rootstock line of Kuakata, followed by the same stages of rootstock lines of Khulna (17.56 mm). The longest rootstock (46.75 cm) was recorded in control treatment (0 dSm-1) with rootstock line of Rangpur followed by the same stages of rootstock (41.75 cm) with medium salinity treatment (6 dSm-1). Rangpur rootstock line performed best from 0-8 dSm-1 salinity. The overall salinity tolerance was graded as follows: Rangpur rootstock line > Dumki rootstock line > Kuakata rootstock line > Khulna rootstock line.Bangladesh Agron. J. 2014, 17(1): 89-94

Influence of Nano-silicon Treatment on Growth Behavior of ‘Sukkary’ and ‘Gahrawy’ Mango Root-stocks Under Salinity Stress

“…In our results, under non salty water irrigation, there weren't any injury symptoms on leaves but with increasing salinity levels of irrigation water from 1750ppm to 3500ppm, the percentage of injured leaves and injured seedlings increased in both cultivars (Table 7). This is in accordance with Roy et al, (2015), Rashedy & Abd Allatif (2017) and Deivasigani et al, (2018), they reported that survival percentage of seedlings decreased with raising salinity level. With olive seedlings, Kchaou et al, (2010) reported that leaf drop started from 60 days after applying high salty water and this phenomenon differed among olive cultivars.…”

Germination and seedling growth response of mango (Mangifera Indica L.) cultivars to different nursery potting media

“…Master-royal mango cultivar in combination with soil potting media of composition of Soil: Sand: FYM (2:1:1) resulted in higher number of leaves [37]. Many researchers reported similar findings on different mango cultivars [17,42,43]. High soil nutrient availability in the potting media can improve nutrient availability and water for growth of mango seedlings [31].…”

Inducing Salinity Tolerance in Mango (Mangifera indica L.) Cv. “El-Gahrawey” by Sodium Silicate Pentahydrate and Glycine Betaine تعزیز تحمل شتلات المانجو صنف ̋ الجحراوى ̏ للملوحة بواسطة سلیکات الصودیوم والجلیسین بیتین.

“…The decline in vegetative growth in this study correlated with increasing levels of salinity agrees with results of Duran Zuazo et al (2003), on Osteen cultivar, grafted onto Gomera-3 and Gomera-1 rootstocks, Pandey (2013) on two mango genotypes viz., Kurukkan and Olour, Roy et al (2014) on four mango rootstock lines collected from Kuakata, Khulna, Dumki, and Rangpur, and (Rashedy and Abd Allatif, 2017) on Ewais, Hindi Besinnara, Misk, Zebda, Sukkary, and Golek cvs. They reported that the saline conditions reduced the number of leaves, stem diameter, plant height, and leaves fresh and dry weight of plants compared to the control treatment.…”