Cause of Differential Susceptibility to Zinc Deficiency in Two Varieties of Navy Beans (Phaseolus vulgaris L.)¹

Abstract

Two navy beans (Phaseolus vulgaris L.) varieties, ‘Sanilac’ and ‘Saginaw,’ were grown in soil, solution culture, and split medium. Plant growth and Fe, P, and Zn uptake were compared with differential Zn deficiency in each of the three media. In general, Fe and P aggravated Zn deficiency. Differential absorption of Fe and P by the two varieties appears to be the cause of differential susceptibility to Zn deficiency. Sanilac took up more Fe and P than Saginaw in a growth medium relatively low in Zn.

Influence of genotypical variability on zinc response in cotton (Gossypium hirsutum L.)

“…The variability of the Zn response among cultivars of various crops has been reported by several workers (Ambler and Brown, 1969;Safaya and Singh, 1977;Shukla and Ra], 1974, 1976, 1980Shukla et al 1973). This variability has been attributed to the differential capacity of cultivars to exploit soil Zn and translocate it to the metabolically active parts of the plant.…”

Efect of zinc and iron deficiency on phytos1derophore release in wheat genotypes differing in zinc efficiency

“…Durati) were germinated and grown for five days in quartz sand moistened with saturated CaSO4. The seedlings were then transferred to continuously aerated nutrient solution containing (in M): K2SO4 0.88xl0-3 ; Ca(NO3)2 2.0xl0" 3 …”

Phosphorus-induced micronutrient disorders in hybrid poplar

“…Clone NM 2 appeared better adapted to intensive P culture by maintaining relatively low and stable P/Zn and P/Cu ratios in leaf tissues compared to clone DN 17 (Tables 3 and 4). Varietal variation to P-induced Zn deficiency has also been observed in navy bean (Ambler and Brown, 1969). Interference by excessive P with the metabolic activities of Zn, such as its enzymatic function (Viets, 1966), and inactivating Zn by excessive P (Leece, 1978) have been suggested as major mechanisms of P-Zn interaction (Olsen, 1972).…”