COMPARATIVE ANALYSIS OF PHYSIOLOGICAL AND MORPHOANATOMIC INDICATORS OF PEAR CULTIVARS RESISTANCE TO DROUGHT IN THE RUSSIAN HUMID SUBTROPICS
- Year:
- 2018
- The authors:
- Kiseleva N. S.
- DOI:
- 10.31360/2225-3068-2018-67-35-42
- Page numbers:
- 35 - 42
- Keywords:
- pear, cultivar, genotype, leaf blade, water-retaining ability, drought resistance, guard cells of stomata.
The paper presents a comparative analysis of physiological and morphoanatomic indicators of various pear cultivars by the degree of resistance to stresses-factors during vegetative period. Their drought resistance was estimated by the character of changes in water regime parametres. It is revealed that water-retaining ability of a leaf blade in all genotypes has a high inverse relationship on a number of stomata on the lower leaf epidermis. According to the research results, there were identifid some pear cultivars that are most resistant to droughts in the summer period.
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