Scanning electron microscopic investigations on the leaf micro-morphological and mesophyll parameters in association with photosynthetic activity of three mulberry (Morus spp.) genotypes

Mala V. Rajan, . and Kodandaramaiah J., . and Kamble C. K., . and Vineet K., . and Jhansi Lakshmi K., . Scanning electron microscopic investigations on the leaf micro-morphological and mesophyll parameters in association with photosynthetic activity of three mulberry (Morus spp.) genotypes. pp. 37-49. ISSN 1985-0484

A scanning electron microscopic study on the micro-morphological and mesophyll parameters of three mulberry genotypes having different yield potentials viz. Punjab local S-30 and China Peking was under taken to find out their association with photosynthetic rate. The results of the present study revealed that the leaf thickness of Punjab local was found maximum (127.420.582 m) and conversely minimum in S-30 genotype (119.170.752 m). Statistically significant differences were found among three genotypes for leaf thickness character against all the other parameters like thickness of palisade and spongy tissues percentage of palisade parenchyma in mesophyll and the rate of photosynthesis with regard to the total density of idioblasts per mm leaf surface area it was observed that sufficient variability exist among the genotypes. The experimental data also indicated the highest photosynthetic rate in S-30 genotype (21.560.557 mol m- s-) with contrastingly low in China Peking (11.060.529 mol m-) significantly associating with the respective micro morphological and mesophyll characteristics. Hence these structural traits which are found correlated with higher physiological efficiency can be conveniently utilized in the screening and evaluation of mulberry genotypes for further improvement in leaf yield and biomass production by the plant breeding programmes.

Full text available from: Official URL: http://www.jtpp.org.my/volume/3/vol3_article5.pdf

Abstract

A scanning electron microscopic study on the micro-morphological and mesophyll parameters of three mulberry genotypes having different yield potentials viz. Punjab local S-30 and China Peking was under taken to find out their association with photosynthetic rate. The results of the present study revealed that the leaf thickness of Punjab local was found maximum (127.420.582 m) and conversely minimum in S-30 genotype (119.170.752 m). Statistically significant differences were found among three genotypes for leaf thickness character against all the other parameters like thickness of palisade and spongy tissues percentage of palisade parenchyma in mesophyll and the rate of photosynthesis with regard to the total density of idioblasts per mm leaf surface area it was observed that sufficient variability exist among the genotypes. The experimental data also indicated the highest photosynthetic rate in S-30 genotype (21.560.557 mol m- s-) with contrastingly low in China Peking (11.060.529 mol m-) significantly associating with the respective micro morphological and mesophyll characteristics. Hence these structural traits which are found correlated with higher physiological efficiency can be conveniently utilized in the screening and evaluation of mulberry genotypes for further improvement in leaf yield and biomass production by the plant breeding programmes.

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Item Type:	Article
AGROVOC Term:	Mulberries
AGROVOC Term:	Morus
AGROVOC Term:	Moraceae
AGROVOC Term:	Scanning microscopy
AGROVOC Term:	Genotypes
AGROVOC Term:	Leaves
AGROVOC Term:	Photosynthesis
AGROVOC Term:	Plant morphology
AGROVOC Term:	Mesophyll
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/9160

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