Boron deficiency in soybean [Glycine max (L.) Merr.] peanut (Arachis hypogaea L.) and black gram [Vigna mungo (L.) Hepper]: Symptoms in seeds and differences among soybean cultivars in susceptibility to boron deficiency

Abstract

Boron deficiency in soybean [Glycine max (L.) Merr.] peanut (Arachis hypogaea L.) and black gram [Vigna mungo (L.) Hepper]: Symptoms in seeds and differences among soybean cultivars in susceptibility to boron deficiency AbstractThe susceptibility of soybean cultivars (cvs) to boron (B) deficiency was examined in three experiments on a Typic Tropaqualf in Northern Thailand: one experiment also included peanut cv Tainan 9 and black gram cv Regur.Without added B (B0), B deficiency depressed seed yield by 60% in soybean cv NW1 compared with 30% in cv SJ5, 40% in cv 7016, 45% in peanut, and 93% in black gram. B deficiency also induced a localised depression on the internal surface of one or both cotyledons of some soybean seeds resembling the symptom of 'hollow heart' in peanut seeds. It induced 50% hollow heart in peanut, 17% in soybean cv NWl, 5% in SJ5, and 1% in 7016: black gram seeds had no symptoms. Addition of B decreased or eliminated the symptoms.In a comparison of 19 soybean cvs, the incidence of hollow heart symptoms in seeds at B0 varied widely from none in two cvs to 75% in cv Buchanan: cv NWl showed intermediate susceptibility to B deficiency with 36% hollow heart in its seed while SJ5 was insensitive with 1%. Application of B eliminated hollow heart except from one seed in one cultivar. The results suggest that susceptibility to B deficiency is sufficiently important and variable among soybean genotypes to warrant its inclusion as a selection criterion when breeding cultivars for areas with low soil B.

Boron Deficiency in Soils and Crops: A Review

“…In a comparative study of 19 soybean cultivars, the incidence of hollow heart symptoms in seeds at control (zero-B) appeared to be 75% but by the addition of only 1% B it reduced from none to 36%. The results suggested that susceptibility to B deficiency is sufficiently important and variable among soybean genotypes to warrant its inclusion as a selection criterion when breeding cultivars for areas with low soil B (Rerkasem et al, 1993).…”

The importance of sampling immature leaves for the diagnosis of boron deficiency in oilseed rape (Brassica napus cv. Eureka)

“…Boron deficiency significantly impairs cell elongation in growing tissues of plants, leading to the inhibition of leaf elongation (Hu and Brown, 1994). The functional B requirement of 10-12 mg B k g -1 dry matter for leaf expansion in soybean (Kirk and Loneragan, 1988) was tested and found to be valid for diagnosing B deficiency in soybean crops in the field in northern Thailand (Rerkasem et al, 1993). The functional B requirement of 10-12 mg B k g -1 dry matter for leaf expansion in soybean (Kirk and Loneragan, 1988) was tested and found to be valid for diagnosing B deficiency in soybean crops in the field in northern Thailand (Rerkasem et al, 1993).…”

Oron Nutrition of Crops in Relation to Yield and Quality- A Review

“…The response of chickpea to boron application varied from 167 to 182 kg ha -1 with 2 kg B ha -1 except in severely deficient sites where it was 3 kg ha -1 [18]. Boron increased the seed yield of sesamum and mustard varieties at application rates of 1.5 and 2.5 kg B ha -1 [19]. Boron applied as boric acid increased the plant height, relative growth rate, and net assimilation rate and leaf area index in pigeon pea [20].…”