P. Kumar*, P.S. Khapte,
A. Saxena, A. Singh,
N.R. Panwar and P. Kumar?
Integrated Farming System, ICAR-Central Arid Zone Research Institute, Jodhpur-342
Author Email :
Aim: The objective of
the present study was to evaluate the performance (based on growth, yield,
quality, and nutrient acquisition) of commercial greenhouse cucumber (Cucumis
sativus) grafted onto different locally available species as rootstocks
Methodology: The performance
of cucumber cv. Infinity as scion was tested onto selected genotypes of three
species of genus Cucurbita (pumpkin, squash and figleaf gourd), one each of Lagenaria
(bottle gourd) and Cucumis (muskmelon) used as rootstocks. Plant
growth, fruit yield and quality characteristics, and nutrient acquisition
efficiency of rootstocks studied under prevailing sub-optimal temperatures
during winter inside unheated greenhouse.
Results: The highest fruit
yield was obtained in intergeneric cucumber grafting onto figleaf gourd
followed by bottle gourd rootstocks, with increase in total yield of 30 and
10%, respectively over non-grafted cucumber. Fruit dry matter content in muskmelon
grafted plants and titratable acidity in figleaf gourd and muskmelon grafted
plants were also increased.???? ???????
Interpretation: The improved
performance of cucumber onto the cucurbit rootstocks, especially figleaf
gourd was related to the increased root dry mass, root/shoot ratio and
rootstock-stem thickness. This was also associated with the enhanced leaf
nutrient status provided by vigorous root system of figleaf gourd rootstock
under prevailing sub-optimal temperature.
Key words: Cucumber, Greenhouse, Sub-optimal temperature, Rootstock