Boron in Soils and Plants
Proceedings of the International Symposium on Boron in Soils and Plants held at Chiang Mai, Thailand, 7–11 September, 1997
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Biofortification of wheat, rice and common bean by applying foliar zinc fertilizer along with pesticides in seven countries
Rice (Oryza sativa L.), wheat (Triticum aestivum L.) and common bean (Phaseolus vulgaris L.) are major staple food crops consumed worldwide. Zinc (Zn) deficiency represents a common micronutrient deficiency in hu...
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Variation in responses to boron in rice
Boron (B) deficiency depresses grain set and grain yield of wheat and maize while having little effect on their vegetative growth. This paper describes effects of B deficiency in rice and how these vary with p...
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Biofortification of rice grain with zinc through zinc fertilization in different countries
Increasing zinc (Zn) concentration of rice seed has potential benefits for human nutrition and health. Enhanced levels of Zn in grain also contributes greatly to crop production through better germination and ...
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The contributions of nitrogen-fixing crop legumes to the productivity of agricultural systems
Data collated from around the world indicate that, for every tonne of shoot dry matter produced by crop legumes, the symbiotic relationship with rhizobia is responsible for fixing, on average on a whole plant ...
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Contrasting responses to boron deficiency in barley and wheat
To determine if boron (B) deficiency, commonly reported to depress grain set in wheat, has the same effect in barley, a set of experiments compared five wheat and seven barley genotypes at various B levels in ...
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Boron Efficiency in a Wheat Germplasm from Bangladesh
Wheat production in Bangladesh has grown from about 32,000 tons from 60,000 ha in 1961 to almost 2 million tons from 800,000 ha by the year 2000. Wheat has contributed significantly to the country’s food secur...
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Overcoming wheat sterility problem with boron efficiency
Grain set failure, due to boron (B) deficiency-induced sterility of the anthers and pollen, is a cause of yield loss in many wheat growing areas of Asia. This paper illustrates a range of genotypic variation i...
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Grain iron concentration in Thai rice germplasm
Iron deficiency anemia can be found world wide, especially in Asia. Preschool children and pregnant women are the most commonly affected. For most people, more than 50 percent of their iron intake comes from c...
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Effect of water stress on the boron response of wheat genotypes under low boron field conditions
Sterility has emerged as a widespread problem for wheat (Triticum aestivum) production in South and South-east Asia. Whilst boron (B) deficiency is commonly associated with sterility in wheat, the expression o...
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Boron deficiency induced male sterility in wheat (Triticum aestivum L.) and implications for plant breeding
Boron (B) deficiency causes grain set in wheat to fail. A wide range of genotypic variation in the response to low B has been observed. Genotypes were screened in low B in soil and sand culture, and classified...
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Relationship of seed boron concentration to germination and growth of soybean (t Glycine max)
Soybean seeds with B concentrations ≤ 10 mg B kg-1 have been reported to have deformed cotyledons. This paper examines the relationship of seed B concentration to seed germination, seedling normality, and plant g...
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Boron and fruit quality of apple
A field experiment was conducted in Yunnan, P. R. China to examine effects of boron (B) fertilizer on fruit yield and quality of apple (Malus domestica cv. Golden Delicious). Four rates of borax (0, 40, 80, 160 g...
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Diagnosis and prognosis of boron deficiency in black gram (Vigna mungo L. Hepper) in the field by using plant analysis
From previous glasshouse experiments, 12–18 mg B kg-1 dry wt in the youngest fully expanded leaf blade (YFEL) represents the minimum leaf boron (B) requirement for unrestricted leaf blade elongation (LBE) in blac...
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Screening wheat for boron efficiency
Boron deficiency causes grain set failure in wheat (Triticum aestivum), but a wide range of genotypic variation in boron (B) efficiency has been identified. This paper shows how wheat genotypes may be evaluated f...
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Boron requirement for reproductive development in wheat
The effect of boron (B) deficiency on reproductive development was examined in a wheat line SW41 at 4 B levels in a field experiment. The soil B levels (designated BO, B1, B2, B3) ranged from 0.1 to 0.2 mg hot...
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Does ammonium uptake influence xylem sap composition inPhaseolus vulgaris L. andGlycine max (L.) Merill?
The question of whether ammonium uptake influences the occurrence of ureides in legumes has been addressed in this study by investigating threeP. vulgaris genotypes as well as one cultivar ofGlycine max. All plan...
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Effects of boron on pollen viability in wheat
Grain set failure in wheat, caused by boron (B) deficiency, is associated with poorly developed pollen and anthers. This paper presents results of a study of the effect of B on pollen viability when it was sup...
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Grain set failure in boron deficient wheat
Effects of boron (B) deficiency on reproductive development and grain set in wheat was studied in experiments in a sand culture in which grain set was increased by increasing B supply in the nutrient solution....
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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
The 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 gra...
