Combo photo taken on March 9, 2017 shows rapeseed flowers in different colors cultivated by Lin Qing and Ma Ke (not in the picture) at Jiangxi Agricultural University in Nanchang, capital of east China's Jiangxi Province. Pakistani couple Hira Khanzada and Ghulam Mustafa Wassan, who gave themselves Chinese names Lin Qing and Ma Ke, are doctoral students major in genetics and breeding in Jiangxi Agricultural University. Sharing common interests on plants, they fell in love in Islamabad, and came to China together for further education in 2010. Now they have cultivated rapeseed flowers in 13 colors under the lead of supervisor Fu Donghui, among which seven colors are in stable condition. [Photo: Xinhua]