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Screening the V itis genus for tolerance to boron with and without salinity
Author(s) -
Pech J.M.,
Stevens R.M.,
Grigson G.J.,
Cox J.W.,
Schrale G.
Publication year - 2013
Publication title -
australian journal of grape and wine research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.65
H-Index - 77
eISSN - 1755-0238
pISSN - 1322-7130
DOI - 10.1111/ajgw.12038
Subject(s) - boron , salinity , shoot , photosynthesis , horticulture , chemistry , botany , biology , ecology , organic chemistry
Abstract Background and Aims Alternative sources of irrigation water can contain excess boron. Twenty‐six grapevine genotypes were assessed for their tolerance to excess boron under non‐saline and saline conditions. Methods and Results Rootling vines received one of three irrigation treatments: Control ( B 0.2 mM), B oron ( B 0.67 mM) or B oron+ S alt [ B 0.6 mM, electrical conductivity 4.0 dS/m]. In the B oron treatment, shoot growth ranged from 88 to 14% of that in the C ontrol, and in the B oron+ S alt from 58 to 10% of that in the C ontrol. Within genotype comparison showed that the growth of shoots in the B oron and B oron+ S alt treatments was equivalent in 24 genotypes. Genotype did not affect the leaf B concentration in the B oron treatment. The addition of salinity did not affect the leaf B concentration in 25 genotypes. In 14 genotypes, the leaf N a + concentration in the Boron treatment was more than double that in the Control. In the B oron and B oron+ S alt treatments, shoot growth was not correlated with B concentration in the leaf, and in the B oron+ S alt treatment, it was not correlated with C l − and N a + concentration in the leaf. B oron and B oron+ S alt treatments reduced the leaf photosynthetic rate and the effective quantum yield of photosystem II (Φ PSII ). Conclusions There was a large genotypic variation in the tolerance of growth to excess boron. It could not be attributed to the variation in leaf B concentration. Significance of the Study The shoot growth in 1613 C ouderc and V itis acerifolia under excess boron was equivalent to that in the C ontrol treatment, which indicates that the use of these two genotypes as rootstocks may produce vines with an improved tolerance to excess boron.