Effect of growth substances on the expression of flowering and study on pollen viability of hermaphrodite & male ower in the female clone “Mondouri local” of Teasle gourd (Momordica subangulata Blume. subsp. renigera)

Authors

  • Abhishek Naik Department of Vegetable Crops, Faculty of Horticulture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia (W. B.) - 741 252, India
  • Shirin Akhtar Department of Horticulture (Vegetable and Floriculture), Bihar Agricultural College, Bihar Agricultural University, Sabour- 813210, Bhagalpur, Bihar, India
  • Arup Chattopadhyay Department of Vegetable Crops, Faculty of Horticulture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia (W. B.) - 741 252, India
  • Umesh Thapa Department of Vegetable Crops, Faculty of Horticulture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia (W. B.) - 741 252, India
  • Pranab Hazra Department of Vegetable Crops, Faculty of Horticulture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia (W. B.) - 741 252, India

DOI:

https://doi.org/10.38150/sajeb.8(2).p63-66

Abstract

Foliar sprays with gibberellic acid (GA) and silver nitrate (AgNO3) of di erent concentra ons at pre-flowering stage induced hermaphrodite and male owers on strictly gynoecious vines of teasle gourd (Momordica subangulata Blume. subsp. renigera). GA at 1500 ppm and AgNO3at 500 ppm were effective inducing more than 50% male owers in the female clone “Mondouri local”. AgNO3 at 750 ppm was effective in inducing 36.6% male and 33.9% hermaphrodite owers on same plant. The hermaphrodite ower had higher pollen size (103.57 μm) compared to that of natural male ower (94.94 μm). However, there existed no variation between pollen viability of bisexual ower (81.6%) and normal male ower (89.1%). However, germinability of the pollen of hermaphrodite ower was very low (14.16%) producing very small pollen tube (9 μm), though the bisexual ower did not produce any fruit on self-pollination.

Author Biographies

Abhishek Naik, Department of Vegetable Crops, Faculty of Horticulture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia (W. B.) - 741 252, India

Department of Vegetable Crops, Faculty of Horticulture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia (W. B.) - 741 252, India

Shirin Akhtar, Department of Horticulture (Vegetable and Floriculture), Bihar Agricultural College, Bihar Agricultural University, Sabour- 813210, Bhagalpur, Bihar, India

Department of Horticulture (Vegetable and Floriculture), Bihar Agricultural College, Bihar Agricultural University, Sabour- 813210, Bhagalpur, Bihar, India

Arup Chattopadhyay, Department of Vegetable Crops, Faculty of Horticulture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia (W. B.) - 741 252, India

Department of Vegetable Crops, Faculty of Horticulture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia (W. B.) - 741 252, India

Umesh Thapa, Department of Vegetable Crops, Faculty of Horticulture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia (W. B.) - 741 252, India

Department of Vegetable Crops, Faculty of Horticulture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia (W. B.) - 741 252, India

Pranab Hazra, Department of Vegetable Crops, Faculty of Horticulture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia (W. B.) - 741 252, India

Department of Vegetable Crops, Faculty of Horticulture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia (W. B.) - 741 252, India

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Published

2019-01-14

Issue

Vol. 8 No. 2 (2018)

Section

Research Articles